#
7f38e9c9 |
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31-Oct-2023 |
Tom Rini <trini@konsulko.com> |
include: Drop <common.h> from include lists At this point, we don't need to have <common.h> be included because of properties in the header itself, it only includes other common header files. We've also audited the code enough at this point that we can drop <common.h> from being included in headers and rely on code to have the correct inclusions themselves, or at least <common.h>. Signed-off-by: Tom Rini <trini@konsulko.com> |
#
c98f6fed |
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05-Oct-2022 |
Paul Barker <paul.barker@sancloud.com> |
spi: Implement spi_set_speed This function is already defined in spi.h but no implementation of it currently exists in the tree. The implementation is based on the static function spi_set_speed_mode(). The function prototype is modified so that an success or error condition can be returned to the caller. Signed-off-by: Paul Barker <paul.barker@sancloud.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de> |
#
61708bb0 |
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30-Mar-2022 |
Patrice Chotard <patrice.chotard@foss.st.com> |
spi: spi-uclass: Add new spi_get_bus_and_cs() implementation Move legacy spi_get_bus_and_cs() code to _spi_get_bus_and_cs(). Add new spi_get_bus_and_cs() implementation which rely on DT for speed and mode and don't need any drv_name nor dev_name parameters. This will prepare the ground for next patch. Update all callers to use _spi_get_bus_and_cs() to keep the same behavior. Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com> Cc: Marek Behun <marek.behun@nic.cz> Cc: Jagan Teki <jagan@amarulasolutions.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Cc: Ramon Fried <rfried.dev@gmail.com> Cc: Lukasz Majewski <lukma@denx.de> Cc: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Stefan Roese <sr@denx.de> Cc: "Pali Rohár" <pali@kernel.org> Cc: Konstantin Porotchkin <kostap@marvell.com> Cc: Igal Liberman <igall@marvell.com> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Pratyush Yadav <p.yadav@ti.com> Cc: Sean Anderson <seanga2@gmail.com> Cc: Anji J <anji.jagarlmudi@nxp.com> Cc: Biwen Li <biwen.li@nxp.com> Cc: Priyanka Jain <priyanka.jain@nxp.com> Cc: Chaitanya Sakinam <chaitanya.sakinam@nxp.com> |
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185f812c |
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19-Jan-2022 |
Heinrich Schuchardt <xypron.glpk@gmx.de> |
doc: replace @return by Return: Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> |
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720620e6 |
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05-Jan-2021 |
Tom Rini <trini@konsulko.com> |
Merge tag 'v2021.01-rc5' into next Prepare v2021.01-rc5 Signed-off-by: Tom Rini <trini@konsulko.com>
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#
741280e9 |
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14-Dec-2020 |
Ovidiu Panait <ovidiu.panait@windriver.com> |
spi: spi-uclass: Fix spi_claim_bus() speed/mode setup logic Currently, when different spi slaves claim the bus consecutively using spi_claim_bus(), spi_set_speed_mode() will only be executed on the first two calls, leaving the bus in a bad state starting with the third call. This patch drops spi_slave->speed member and adds caching of bus speed/mode in dm_spi_bus struct. It also updates spi_claim_bus() to call spi_set_speed_mode() if either speed or mode is different from what the bus is currently configured for. Current behavior is to only take into account the speed, but not the mode, which seems wrong. Fixes: 60e2809a848 ("dm: spi: Avoid setting the speed with every transfer") Reviewed-by: Simon Glass <sjg@chromium.org> Reported-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reported-by: Moshe, Yaniv <yanivmo@amazon.com> Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com> |
#
8b85dfc6 |
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16-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: Avoid accessing seq directly At present various drivers etc. access the device's 'seq' member directly. This makes it harder to change the meaning of that member. Change access to go through a function instead. The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now. Signed-off-by: Simon Glass <sjg@chromium.org> |
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40fc33fa |
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07-Aug-2020 |
Sean Anderson <seanga2@gmail.com> |
spi: Fix typo in header Spelling. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
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8a8d24bd |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename ..._platdata variables to just ..._plat Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org> |
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d1998a9f |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename ofdata_to_platdata() to of_to_plat() This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org> |
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caa4daa2 |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename 'platdata' variables to just 'plat' We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org> |
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41575d8e |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename auto_alloc_size members to be shorter This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org> |
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54234592 |
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19-Jul-2020 |
Simon Glass <sjg@chromium.org> |
mtd: spi: Drop SPI_XFER_MMAP* These two defines are no-longer supported. Drop them. Signed-off-by: Simon Glass <sjg@chromium.org> |
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70e5e67a |
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07-Jul-2020 |
Simon Glass <sjg@chromium.org> |
acpi: Support generation of SPI descriptor Add a function to write a SPI descriptor to the generated ACPI code. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
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324ec5d7 |
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08-Jul-2020 |
Simon Glass <sjg@chromium.org> |
spi: Remove unnecessary #ifdefs in header file These prevent use of compile-time checks such as: if (CONFIG_IS_ENABLED(DM_SPI)) since, for example, if CONFIG_SPL_DM_SPI is not enabled then the definitions are not included by spi.h and the C code will not build. The #ifdefs are unnecessary since there are no conflicts with the pre-DM code. In any case we have almost switched over to driver model for SPI. Drop these #ifdefs from spi.h to fix a build warning on chromebook_coral in the following patch. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
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56c40460 |
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04-Jun-2020 |
Lukasz Majewski <lukma@denx.de> |
spi: Convert CONFIG_DM_SPI* to CONFIG_$(SPL_TPL_)DM_SPI* This change allows more fine tuning of driver model based SPI support in SPL and TPL. It is now possible to explicitly enable/disable the DM_SPI support in SPL and TPL via Kconfig option. Before this change it was necessary to use: /* SPI Flash Configs */ #if defined(CONFIG_SPL_BUILD) #undef CONFIG_DM_SPI #undef CONFIG_DM_SPI_FLASH #undef CONFIG_SPI_FLASH_MTD #endif in the ./include/configs/<board>.h, which is error prone and shall be avoided when we strive to switch to Kconfig. The goal of this patch: Provide distinction for DM_SPI support in both U-Boot proper and SPL (TPL). Valid use case is when U-Boot proper wants to use DM_SPI, but SPL must still support non DM driver. Another use case is the conversion of non DM/DTS SPI driver to support DM/DTS. When such driver needs to work in both SPL and U-Boot proper, the distinction is needed in Kconfig (also if SPL version of the driver supports OF_PLATDATA). In the end of the day one would have to support following use cases (in single driver file - e.g. mxs_spi.c): - U-Boot proper driver supporting DT/DTS - U-Boot proper driver without DT/DTS support (deprecated) - SPL driver without DT/DTS support - SPL (and TPL) driver with DT/DTS (when the SoC has enough resources to run full blown DT/DTS) - SPL driver with DT/DTS and SPL_OF_PLATDATA (when one have constrained environment with no fitImage and OF_LIBFDT support). Some boards do require SPI support (with DM) in SPL (TPL) and some only have DM_SPI{_FLASH} defined to allow compiling SPL. This patch converts #ifdef CONFIG_DM_SPI* to #if CONFIG_IS_ENABLED(DM_SPI) and provides corresponding defines in Kconfig. Signed-off-by: Lukasz Majewski <lukma@denx.de> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> [trini: Fixup a few platforms] Signed-off-by: Tom Rini <trini@konsulko.com> |
#
cd93d625 |
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10-May-2020 |
Simon Glass <sjg@chromium.org> |
common: Drop linux/bitops.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org> |
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b14ccfcf |
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08-Apr-2020 |
Simon Glass <sjg@chromium.org> |
spi: Add SPI mode enums With ACPI we need to describe the settings of the SPI bus. Add enums to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> |
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658df8bd |
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05-Dec-2019 |
Vignesh Raghavendra <vigneshr@ti.com> |
mtd: spi-nor-core: Add octal mode support Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
7bacce52 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Check cs number before accessing slaves Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine |
#
ccdabd89 |
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06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
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c53b318e |
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20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
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8473b321 |
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22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
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27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@foss.st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
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e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
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184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
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c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
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6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
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8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
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279e26f5 |
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18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
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20343ff3 |
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30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
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10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
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02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
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23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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2b11a41c |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
465c00d7 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
|
28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
|
17-Aug-2015 |
Tom Rini <trini@konsulko.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
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26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
|
20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
|
17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
|
19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
|
11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.prasad.paladugu@amd.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
|
25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
|
12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
|
15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
|
06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
|
12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
|
24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
|
03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
|
10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
|
07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
|
07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
|
25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
|
15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
|
28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
|
24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
|
09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
|
16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
|
15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
|
25-Sep-2002 |
Wolfgang Denk <wd@denx.de> |
Initial revision |
#
c98f6fed |
|
05-Oct-2022 |
Paul Barker <paul.barker@sancloud.com> |
spi: Implement spi_set_speed This function is already defined in spi.h but no implementation of it currently exists in the tree. The implementation is based on the static function spi_set_speed_mode(). The function prototype is modified so that an success or error condition can be returned to the caller. Signed-off-by: Paul Barker <paul.barker@sancloud.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de> |
#
61708bb0 |
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30-Mar-2022 |
Patrice Chotard <patrice.chotard@foss.st.com> |
spi: spi-uclass: Add new spi_get_bus_and_cs() implementation Move legacy spi_get_bus_and_cs() code to _spi_get_bus_and_cs(). Add new spi_get_bus_and_cs() implementation which rely on DT for speed and mode and don't need any drv_name nor dev_name parameters. This will prepare the ground for next patch. Update all callers to use _spi_get_bus_and_cs() to keep the same behavior. Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com> Cc: Marek Behun <marek.behun@nic.cz> Cc: Jagan Teki <jagan@amarulasolutions.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Cc: Ramon Fried <rfried.dev@gmail.com> Cc: Lukasz Majewski <lukma@denx.de> Cc: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Stefan Roese <sr@denx.de> Cc: "Pali Rohár" <pali@kernel.org> Cc: Konstantin Porotchkin <kostap@marvell.com> Cc: Igal Liberman <igall@marvell.com> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Pratyush Yadav <p.yadav@ti.com> Cc: Sean Anderson <seanga2@gmail.com> Cc: Anji J <anji.jagarlmudi@nxp.com> Cc: Biwen Li <biwen.li@nxp.com> Cc: Priyanka Jain <priyanka.jain@nxp.com> Cc: Chaitanya Sakinam <chaitanya.sakinam@nxp.com> |
#
185f812c |
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19-Jan-2022 |
Heinrich Schuchardt <xypron.glpk@gmx.de> |
doc: replace @return by Return: Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> |
#
720620e6 |
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05-Jan-2021 |
Tom Rini <trini@konsulko.com> |
Merge tag 'v2021.01-rc5' into next Prepare v2021.01-rc5 Signed-off-by: Tom Rini <trini@konsulko.com>
|
#
741280e9 |
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14-Dec-2020 |
Ovidiu Panait <ovidiu.panait@windriver.com> |
spi: spi-uclass: Fix spi_claim_bus() speed/mode setup logic Currently, when different spi slaves claim the bus consecutively using spi_claim_bus(), spi_set_speed_mode() will only be executed on the first two calls, leaving the bus in a bad state starting with the third call. This patch drops spi_slave->speed member and adds caching of bus speed/mode in dm_spi_bus struct. It also updates spi_claim_bus() to call spi_set_speed_mode() if either speed or mode is different from what the bus is currently configured for. Current behavior is to only take into account the speed, but not the mode, which seems wrong. Fixes: 60e2809a848 ("dm: spi: Avoid setting the speed with every transfer") Reviewed-by: Simon Glass <sjg@chromium.org> Reported-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reported-by: Moshe, Yaniv <yanivmo@amazon.com> Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com> |
#
8b85dfc6 |
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16-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: Avoid accessing seq directly At present various drivers etc. access the device's 'seq' member directly. This makes it harder to change the meaning of that member. Change access to go through a function instead. The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
40fc33fa |
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07-Aug-2020 |
Sean Anderson <seanga2@gmail.com> |
spi: Fix typo in header Spelling. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8a8d24bd |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename ..._platdata variables to just ..._plat Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
d1998a9f |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename ofdata_to_platdata() to of_to_plat() This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
caa4daa2 |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename 'platdata' variables to just 'plat' We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
41575d8e |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename auto_alloc_size members to be shorter This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54234592 |
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19-Jul-2020 |
Simon Glass <sjg@chromium.org> |
mtd: spi: Drop SPI_XFER_MMAP* These two defines are no-longer supported. Drop them. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
70e5e67a |
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07-Jul-2020 |
Simon Glass <sjg@chromium.org> |
acpi: Support generation of SPI descriptor Add a function to write a SPI descriptor to the generated ACPI code. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
324ec5d7 |
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08-Jul-2020 |
Simon Glass <sjg@chromium.org> |
spi: Remove unnecessary #ifdefs in header file These prevent use of compile-time checks such as: if (CONFIG_IS_ENABLED(DM_SPI)) since, for example, if CONFIG_SPL_DM_SPI is not enabled then the definitions are not included by spi.h and the C code will not build. The #ifdefs are unnecessary since there are no conflicts with the pre-DM code. In any case we have almost switched over to driver model for SPI. Drop these #ifdefs from spi.h to fix a build warning on chromebook_coral in the following patch. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
56c40460 |
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04-Jun-2020 |
Lukasz Majewski <lukma@denx.de> |
spi: Convert CONFIG_DM_SPI* to CONFIG_$(SPL_TPL_)DM_SPI* This change allows more fine tuning of driver model based SPI support in SPL and TPL. It is now possible to explicitly enable/disable the DM_SPI support in SPL and TPL via Kconfig option. Before this change it was necessary to use: /* SPI Flash Configs */ #if defined(CONFIG_SPL_BUILD) #undef CONFIG_DM_SPI #undef CONFIG_DM_SPI_FLASH #undef CONFIG_SPI_FLASH_MTD #endif in the ./include/configs/<board>.h, which is error prone and shall be avoided when we strive to switch to Kconfig. The goal of this patch: Provide distinction for DM_SPI support in both U-Boot proper and SPL (TPL). Valid use case is when U-Boot proper wants to use DM_SPI, but SPL must still support non DM driver. Another use case is the conversion of non DM/DTS SPI driver to support DM/DTS. When such driver needs to work in both SPL and U-Boot proper, the distinction is needed in Kconfig (also if SPL version of the driver supports OF_PLATDATA). In the end of the day one would have to support following use cases (in single driver file - e.g. mxs_spi.c): - U-Boot proper driver supporting DT/DTS - U-Boot proper driver without DT/DTS support (deprecated) - SPL driver without DT/DTS support - SPL (and TPL) driver with DT/DTS (when the SoC has enough resources to run full blown DT/DTS) - SPL driver with DT/DTS and SPL_OF_PLATDATA (when one have constrained environment with no fitImage and OF_LIBFDT support). Some boards do require SPI support (with DM) in SPL (TPL) and some only have DM_SPI{_FLASH} defined to allow compiling SPL. This patch converts #ifdef CONFIG_DM_SPI* to #if CONFIG_IS_ENABLED(DM_SPI) and provides corresponding defines in Kconfig. Signed-off-by: Lukasz Majewski <lukma@denx.de> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> [trini: Fixup a few platforms] Signed-off-by: Tom Rini <trini@konsulko.com> |
#
cd93d625 |
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10-May-2020 |
Simon Glass <sjg@chromium.org> |
common: Drop linux/bitops.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
b14ccfcf |
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08-Apr-2020 |
Simon Glass <sjg@chromium.org> |
spi: Add SPI mode enums With ACPI we need to describe the settings of the SPI bus. Add enums to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> |
#
658df8bd |
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05-Dec-2019 |
Vignesh Raghavendra <vigneshr@ti.com> |
mtd: spi-nor-core: Add octal mode support Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
7bacce52 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Check cs number before accessing slaves Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine |
#
ccdabd89 |
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06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
c53b318e |
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20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
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22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
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27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@foss.st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
#
184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
279e26f5 |
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18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
20343ff3 |
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30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
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10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
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02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
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23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
2b11a41c |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
465c00d7 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
|
28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
|
17-Aug-2015 |
Tom Rini <trini@konsulko.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
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26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
|
20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
|
17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
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19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
|
11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
|
25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
|
12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
|
15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
|
06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
|
12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
|
24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
|
03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
|
10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
|
07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
|
07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
|
25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
|
15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
|
28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
|
24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
|
09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
|
16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
|
15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
|
25-Sep-2002 |
Wolfgang Denk <wd@denx.de> |
Initial revision |
#
61708bb0 |
|
30-Mar-2022 |
Patrice Chotard <patrice.chotard@foss.st.com> |
spi: spi-uclass: Add new spi_get_bus_and_cs() implementation Move legacy spi_get_bus_and_cs() code to _spi_get_bus_and_cs(). Add new spi_get_bus_and_cs() implementation which rely on DT for speed and mode and don't need any drv_name nor dev_name parameters. This will prepare the ground for next patch. Update all callers to use _spi_get_bus_and_cs() to keep the same behavior. Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com> Cc: Marek Behun <marek.behun@nic.cz> Cc: Jagan Teki <jagan@amarulasolutions.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Cc: Ramon Fried <rfried.dev@gmail.com> Cc: Lukasz Majewski <lukma@denx.de> Cc: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Stefan Roese <sr@denx.de> Cc: "Pali Rohár" <pali@kernel.org> Cc: Konstantin Porotchkin <kostap@marvell.com> Cc: Igal Liberman <igall@marvell.com> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Pratyush Yadav <p.yadav@ti.com> Cc: Sean Anderson <seanga2@gmail.com> Cc: Anji J <anji.jagarlmudi@nxp.com> Cc: Biwen Li <biwen.li@nxp.com> Cc: Priyanka Jain <priyanka.jain@nxp.com> Cc: Chaitanya Sakinam <chaitanya.sakinam@nxp.com> |
#
185f812c |
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19-Jan-2022 |
Heinrich Schuchardt <xypron.glpk@gmx.de> |
doc: replace @return by Return: Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> |
#
720620e6 |
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05-Jan-2021 |
Tom Rini <trini@konsulko.com> |
Merge tag 'v2021.01-rc5' into next Prepare v2021.01-rc5 Signed-off-by: Tom Rini <trini@konsulko.com>
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#
741280e9 |
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14-Dec-2020 |
Ovidiu Panait <ovidiu.panait@windriver.com> |
spi: spi-uclass: Fix spi_claim_bus() speed/mode setup logic Currently, when different spi slaves claim the bus consecutively using spi_claim_bus(), spi_set_speed_mode() will only be executed on the first two calls, leaving the bus in a bad state starting with the third call. This patch drops spi_slave->speed member and adds caching of bus speed/mode in dm_spi_bus struct. It also updates spi_claim_bus() to call spi_set_speed_mode() if either speed or mode is different from what the bus is currently configured for. Current behavior is to only take into account the speed, but not the mode, which seems wrong. Fixes: 60e2809a848 ("dm: spi: Avoid setting the speed with every transfer") Reviewed-by: Simon Glass <sjg@chromium.org> Reported-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reported-by: Moshe, Yaniv <yanivmo@amazon.com> Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com> |
#
8b85dfc6 |
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16-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: Avoid accessing seq directly At present various drivers etc. access the device's 'seq' member directly. This makes it harder to change the meaning of that member. Change access to go through a function instead. The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now. Signed-off-by: Simon Glass <sjg@chromium.org> |
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40fc33fa |
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07-Aug-2020 |
Sean Anderson <seanga2@gmail.com> |
spi: Fix typo in header Spelling. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
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8a8d24bd |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename ..._platdata variables to just ..._plat Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org> |
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d1998a9f |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename ofdata_to_platdata() to of_to_plat() This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org> |
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caa4daa2 |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename 'platdata' variables to just 'plat' We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org> |
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41575d8e |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename auto_alloc_size members to be shorter This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org> |
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54234592 |
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19-Jul-2020 |
Simon Glass <sjg@chromium.org> |
mtd: spi: Drop SPI_XFER_MMAP* These two defines are no-longer supported. Drop them. Signed-off-by: Simon Glass <sjg@chromium.org> |
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70e5e67a |
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07-Jul-2020 |
Simon Glass <sjg@chromium.org> |
acpi: Support generation of SPI descriptor Add a function to write a SPI descriptor to the generated ACPI code. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
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324ec5d7 |
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08-Jul-2020 |
Simon Glass <sjg@chromium.org> |
spi: Remove unnecessary #ifdefs in header file These prevent use of compile-time checks such as: if (CONFIG_IS_ENABLED(DM_SPI)) since, for example, if CONFIG_SPL_DM_SPI is not enabled then the definitions are not included by spi.h and the C code will not build. The #ifdefs are unnecessary since there are no conflicts with the pre-DM code. In any case we have almost switched over to driver model for SPI. Drop these #ifdefs from spi.h to fix a build warning on chromebook_coral in the following patch. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
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56c40460 |
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04-Jun-2020 |
Lukasz Majewski <lukma@denx.de> |
spi: Convert CONFIG_DM_SPI* to CONFIG_$(SPL_TPL_)DM_SPI* This change allows more fine tuning of driver model based SPI support in SPL and TPL. It is now possible to explicitly enable/disable the DM_SPI support in SPL and TPL via Kconfig option. Before this change it was necessary to use: /* SPI Flash Configs */ #if defined(CONFIG_SPL_BUILD) #undef CONFIG_DM_SPI #undef CONFIG_DM_SPI_FLASH #undef CONFIG_SPI_FLASH_MTD #endif in the ./include/configs/<board>.h, which is error prone and shall be avoided when we strive to switch to Kconfig. The goal of this patch: Provide distinction for DM_SPI support in both U-Boot proper and SPL (TPL). Valid use case is when U-Boot proper wants to use DM_SPI, but SPL must still support non DM driver. Another use case is the conversion of non DM/DTS SPI driver to support DM/DTS. When such driver needs to work in both SPL and U-Boot proper, the distinction is needed in Kconfig (also if SPL version of the driver supports OF_PLATDATA). In the end of the day one would have to support following use cases (in single driver file - e.g. mxs_spi.c): - U-Boot proper driver supporting DT/DTS - U-Boot proper driver without DT/DTS support (deprecated) - SPL driver without DT/DTS support - SPL (and TPL) driver with DT/DTS (when the SoC has enough resources to run full blown DT/DTS) - SPL driver with DT/DTS and SPL_OF_PLATDATA (when one have constrained environment with no fitImage and OF_LIBFDT support). Some boards do require SPI support (with DM) in SPL (TPL) and some only have DM_SPI{_FLASH} defined to allow compiling SPL. This patch converts #ifdef CONFIG_DM_SPI* to #if CONFIG_IS_ENABLED(DM_SPI) and provides corresponding defines in Kconfig. Signed-off-by: Lukasz Majewski <lukma@denx.de> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> [trini: Fixup a few platforms] Signed-off-by: Tom Rini <trini@konsulko.com> |
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cd93d625 |
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10-May-2020 |
Simon Glass <sjg@chromium.org> |
common: Drop linux/bitops.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org> |
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b14ccfcf |
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08-Apr-2020 |
Simon Glass <sjg@chromium.org> |
spi: Add SPI mode enums With ACPI we need to describe the settings of the SPI bus. Add enums to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> |
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658df8bd |
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05-Dec-2019 |
Vignesh Raghavendra <vigneshr@ti.com> |
mtd: spi-nor-core: Add octal mode support Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
7bacce52 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Check cs number before accessing slaves Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine |
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ccdabd89 |
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06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
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c53b318e |
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20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
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4b060003 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
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8473b321 |
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22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
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b0cc1b84 |
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27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@foss.st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
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e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
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d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
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184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
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c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
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6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
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8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
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7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
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279e26f5 |
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18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
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20343ff3 |
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30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
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10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
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02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
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23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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2b11a41c |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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465c00d7 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
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28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
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17-Aug-2015 |
Tom Rini <trini@konsulko.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
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26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
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20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
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17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
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19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
|
11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
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25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
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12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
|
15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
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06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
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12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
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24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
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11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
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11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
|
03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
|
10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
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07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
|
07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
|
25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
|
15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
|
28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
|
24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
|
09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
|
16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
|
15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
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25-Sep-2002 |
Wolfgang Denk <wd@denx.de> |
Initial revision |
#
185f812c |
|
19-Jan-2022 |
Heinrich Schuchardt <xypron.glpk@gmx.de> |
doc: replace @return by Return: Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> |
#
720620e6 |
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05-Jan-2021 |
Tom Rini <trini@konsulko.com> |
Merge tag 'v2021.01-rc5' into next Prepare v2021.01-rc5 Signed-off-by: Tom Rini <trini@konsulko.com>
|
#
741280e9 |
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14-Dec-2020 |
Ovidiu Panait <ovidiu.panait@windriver.com> |
spi: spi-uclass: Fix spi_claim_bus() speed/mode setup logic Currently, when different spi slaves claim the bus consecutively using spi_claim_bus(), spi_set_speed_mode() will only be executed on the first two calls, leaving the bus in a bad state starting with the third call. This patch drops spi_slave->speed member and adds caching of bus speed/mode in dm_spi_bus struct. It also updates spi_claim_bus() to call spi_set_speed_mode() if either speed or mode is different from what the bus is currently configured for. Current behavior is to only take into account the speed, but not the mode, which seems wrong. Fixes: 60e2809a848 ("dm: spi: Avoid setting the speed with every transfer") Reviewed-by: Simon Glass <sjg@chromium.org> Reported-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reported-by: Moshe, Yaniv <yanivmo@amazon.com> Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com> |
#
8b85dfc6 |
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16-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: Avoid accessing seq directly At present various drivers etc. access the device's 'seq' member directly. This makes it harder to change the meaning of that member. Change access to go through a function instead. The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
40fc33fa |
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07-Aug-2020 |
Sean Anderson <seanga2@gmail.com> |
spi: Fix typo in header Spelling. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
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8a8d24bd |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename ..._platdata variables to just ..._plat Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
d1998a9f |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename ofdata_to_platdata() to of_to_plat() This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
caa4daa2 |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename 'platdata' variables to just 'plat' We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
41575d8e |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename auto_alloc_size members to be shorter This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org> |
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54234592 |
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19-Jul-2020 |
Simon Glass <sjg@chromium.org> |
mtd: spi: Drop SPI_XFER_MMAP* These two defines are no-longer supported. Drop them. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
70e5e67a |
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07-Jul-2020 |
Simon Glass <sjg@chromium.org> |
acpi: Support generation of SPI descriptor Add a function to write a SPI descriptor to the generated ACPI code. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
324ec5d7 |
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08-Jul-2020 |
Simon Glass <sjg@chromium.org> |
spi: Remove unnecessary #ifdefs in header file These prevent use of compile-time checks such as: if (CONFIG_IS_ENABLED(DM_SPI)) since, for example, if CONFIG_SPL_DM_SPI is not enabled then the definitions are not included by spi.h and the C code will not build. The #ifdefs are unnecessary since there are no conflicts with the pre-DM code. In any case we have almost switched over to driver model for SPI. Drop these #ifdefs from spi.h to fix a build warning on chromebook_coral in the following patch. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
56c40460 |
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04-Jun-2020 |
Lukasz Majewski <lukma@denx.de> |
spi: Convert CONFIG_DM_SPI* to CONFIG_$(SPL_TPL_)DM_SPI* This change allows more fine tuning of driver model based SPI support in SPL and TPL. It is now possible to explicitly enable/disable the DM_SPI support in SPL and TPL via Kconfig option. Before this change it was necessary to use: /* SPI Flash Configs */ #if defined(CONFIG_SPL_BUILD) #undef CONFIG_DM_SPI #undef CONFIG_DM_SPI_FLASH #undef CONFIG_SPI_FLASH_MTD #endif in the ./include/configs/<board>.h, which is error prone and shall be avoided when we strive to switch to Kconfig. The goal of this patch: Provide distinction for DM_SPI support in both U-Boot proper and SPL (TPL). Valid use case is when U-Boot proper wants to use DM_SPI, but SPL must still support non DM driver. Another use case is the conversion of non DM/DTS SPI driver to support DM/DTS. When such driver needs to work in both SPL and U-Boot proper, the distinction is needed in Kconfig (also if SPL version of the driver supports OF_PLATDATA). In the end of the day one would have to support following use cases (in single driver file - e.g. mxs_spi.c): - U-Boot proper driver supporting DT/DTS - U-Boot proper driver without DT/DTS support (deprecated) - SPL driver without DT/DTS support - SPL (and TPL) driver with DT/DTS (when the SoC has enough resources to run full blown DT/DTS) - SPL driver with DT/DTS and SPL_OF_PLATDATA (when one have constrained environment with no fitImage and OF_LIBFDT support). Some boards do require SPI support (with DM) in SPL (TPL) and some only have DM_SPI{_FLASH} defined to allow compiling SPL. This patch converts #ifdef CONFIG_DM_SPI* to #if CONFIG_IS_ENABLED(DM_SPI) and provides corresponding defines in Kconfig. Signed-off-by: Lukasz Majewski <lukma@denx.de> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> [trini: Fixup a few platforms] Signed-off-by: Tom Rini <trini@konsulko.com> |
#
cd93d625 |
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10-May-2020 |
Simon Glass <sjg@chromium.org> |
common: Drop linux/bitops.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org> |
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b14ccfcf |
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08-Apr-2020 |
Simon Glass <sjg@chromium.org> |
spi: Add SPI mode enums With ACPI we need to describe the settings of the SPI bus. Add enums to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> |
#
658df8bd |
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05-Dec-2019 |
Vignesh Raghavendra <vigneshr@ti.com> |
mtd: spi-nor-core: Add octal mode support Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
7bacce52 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Check cs number before accessing slaves Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine |
#
ccdabd89 |
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06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
c53b318e |
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20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
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22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
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27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@foss.st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
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184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
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279e26f5 |
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18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
20343ff3 |
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30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
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10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
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02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
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23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
2b11a41c |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
465c00d7 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
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28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
|
17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
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26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
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20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
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17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
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19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
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11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
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25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
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12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
|
15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
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06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
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12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
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24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
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11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
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03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
|
10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
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07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
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07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
|
25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
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15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
|
28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
|
24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
|
09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
|
16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
|
15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
|
25-Sep-2002 |
Wolfgang Denk <wdenk> |
Initial revision |
#
720620e6 |
|
05-Jan-2021 |
Tom Rini <trini@konsulko.com> |
Merge tag 'v2021.01-rc5' into next Prepare v2021.01-rc5 Signed-off-by: Tom Rini <trini@konsulko.com>
|
#
741280e9 |
|
14-Dec-2020 |
Ovidiu Panait <ovidiu.panait@windriver.com> |
spi: spi-uclass: Fix spi_claim_bus() speed/mode setup logic Currently, when different spi slaves claim the bus consecutively using spi_claim_bus(), spi_set_speed_mode() will only be executed on the first two calls, leaving the bus in a bad state starting with the third call. This patch drops spi_slave->speed member and adds caching of bus speed/mode in dm_spi_bus struct. It also updates spi_claim_bus() to call spi_set_speed_mode() if either speed or mode is different from what the bus is currently configured for. Current behavior is to only take into account the speed, but not the mode, which seems wrong. Fixes: 60e2809a848 ("dm: spi: Avoid setting the speed with every transfer") Reviewed-by: Simon Glass <sjg@chromium.org> Reported-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reported-by: Moshe, Yaniv <yanivmo@amazon.com> Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com> |
#
8b85dfc6 |
|
16-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: Avoid accessing seq directly At present various drivers etc. access the device's 'seq' member directly. This makes it harder to change the meaning of that member. Change access to go through a function instead. The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
40fc33fa |
|
07-Aug-2020 |
Sean Anderson <seanga2@gmail.com> |
spi: Fix typo in header Spelling. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8a8d24bd |
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03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename ..._platdata variables to just ..._plat Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
d1998a9f |
|
03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename ofdata_to_platdata() to of_to_plat() This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
caa4daa2 |
|
03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename 'platdata' variables to just 'plat' We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
41575d8e |
|
03-Dec-2020 |
Simon Glass <sjg@chromium.org> |
dm: treewide: Rename auto_alloc_size members to be shorter This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54234592 |
|
19-Jul-2020 |
Simon Glass <sjg@chromium.org> |
mtd: spi: Drop SPI_XFER_MMAP* These two defines are no-longer supported. Drop them. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
70e5e67a |
|
07-Jul-2020 |
Simon Glass <sjg@chromium.org> |
acpi: Support generation of SPI descriptor Add a function to write a SPI descriptor to the generated ACPI code. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
324ec5d7 |
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08-Jul-2020 |
Simon Glass <sjg@chromium.org> |
spi: Remove unnecessary #ifdefs in header file These prevent use of compile-time checks such as: if (CONFIG_IS_ENABLED(DM_SPI)) since, for example, if CONFIG_SPL_DM_SPI is not enabled then the definitions are not included by spi.h and the C code will not build. The #ifdefs are unnecessary since there are no conflicts with the pre-DM code. In any case we have almost switched over to driver model for SPI. Drop these #ifdefs from spi.h to fix a build warning on chromebook_coral in the following patch. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
56c40460 |
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04-Jun-2020 |
Lukasz Majewski <lukma@denx.de> |
spi: Convert CONFIG_DM_SPI* to CONFIG_$(SPL_TPL_)DM_SPI* This change allows more fine tuning of driver model based SPI support in SPL and TPL. It is now possible to explicitly enable/disable the DM_SPI support in SPL and TPL via Kconfig option. Before this change it was necessary to use: /* SPI Flash Configs */ #if defined(CONFIG_SPL_BUILD) #undef CONFIG_DM_SPI #undef CONFIG_DM_SPI_FLASH #undef CONFIG_SPI_FLASH_MTD #endif in the ./include/configs/<board>.h, which is error prone and shall be avoided when we strive to switch to Kconfig. The goal of this patch: Provide distinction for DM_SPI support in both U-Boot proper and SPL (TPL). Valid use case is when U-Boot proper wants to use DM_SPI, but SPL must still support non DM driver. Another use case is the conversion of non DM/DTS SPI driver to support DM/DTS. When such driver needs to work in both SPL and U-Boot proper, the distinction is needed in Kconfig (also if SPL version of the driver supports OF_PLATDATA). In the end of the day one would have to support following use cases (in single driver file - e.g. mxs_spi.c): - U-Boot proper driver supporting DT/DTS - U-Boot proper driver without DT/DTS support (deprecated) - SPL driver without DT/DTS support - SPL (and TPL) driver with DT/DTS (when the SoC has enough resources to run full blown DT/DTS) - SPL driver with DT/DTS and SPL_OF_PLATDATA (when one have constrained environment with no fitImage and OF_LIBFDT support). Some boards do require SPI support (with DM) in SPL (TPL) and some only have DM_SPI{_FLASH} defined to allow compiling SPL. This patch converts #ifdef CONFIG_DM_SPI* to #if CONFIG_IS_ENABLED(DM_SPI) and provides corresponding defines in Kconfig. Signed-off-by: Lukasz Majewski <lukma@denx.de> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> [trini: Fixup a few platforms] Signed-off-by: Tom Rini <trini@konsulko.com> |
#
cd93d625 |
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10-May-2020 |
Simon Glass <sjg@chromium.org> |
common: Drop linux/bitops.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
b14ccfcf |
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08-Apr-2020 |
Simon Glass <sjg@chromium.org> |
spi: Add SPI mode enums With ACPI we need to describe the settings of the SPI bus. Add enums to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> |
#
658df8bd |
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05-Dec-2019 |
Vignesh Raghavendra <vigneshr@ti.com> |
mtd: spi-nor-core: Add octal mode support Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
7bacce52 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Check cs number before accessing slaves Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine |
#
ccdabd89 |
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06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
c53b318e |
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20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
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22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
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27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@foss.st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
#
184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
279e26f5 |
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18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
20343ff3 |
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30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
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10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
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02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
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23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
2b11a41c |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
465c00d7 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
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28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
|
17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
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26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
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20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
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17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
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19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
|
11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
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25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
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12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
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15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
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06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
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12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
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24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
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11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
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03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
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10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
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07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
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07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
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25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
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15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
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28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
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24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
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09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
|
16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
|
15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
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25-Sep-2002 |
Wolfgang Denk <wdenk> |
Initial revision |
#
40fc33fa |
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07-Aug-2020 |
Sean Anderson <seanga2@gmail.com> |
spi: Fix typo in header Spelling. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
54234592 |
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19-Jul-2020 |
Simon Glass <sjg@chromium.org> |
mtd: spi: Drop SPI_XFER_MMAP* These two defines are no-longer supported. Drop them. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
70e5e67a |
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07-Jul-2020 |
Simon Glass <sjg@chromium.org> |
acpi: Support generation of SPI descriptor Add a function to write a SPI descriptor to the generated ACPI code. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
324ec5d7 |
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08-Jul-2020 |
Simon Glass <sjg@chromium.org> |
spi: Remove unnecessary #ifdefs in header file These prevent use of compile-time checks such as: if (CONFIG_IS_ENABLED(DM_SPI)) since, for example, if CONFIG_SPL_DM_SPI is not enabled then the definitions are not included by spi.h and the C code will not build. The #ifdefs are unnecessary since there are no conflicts with the pre-DM code. In any case we have almost switched over to driver model for SPI. Drop these #ifdefs from spi.h to fix a build warning on chromebook_coral in the following patch. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
56c40460 |
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04-Jun-2020 |
Lukasz Majewski <lukma@denx.de> |
spi: Convert CONFIG_DM_SPI* to CONFIG_$(SPL_TPL_)DM_SPI* This change allows more fine tuning of driver model based SPI support in SPL and TPL. It is now possible to explicitly enable/disable the DM_SPI support in SPL and TPL via Kconfig option. Before this change it was necessary to use: /* SPI Flash Configs */ #if defined(CONFIG_SPL_BUILD) #undef CONFIG_DM_SPI #undef CONFIG_DM_SPI_FLASH #undef CONFIG_SPI_FLASH_MTD #endif in the ./include/configs/<board>.h, which is error prone and shall be avoided when we strive to switch to Kconfig. The goal of this patch: Provide distinction for DM_SPI support in both U-Boot proper and SPL (TPL). Valid use case is when U-Boot proper wants to use DM_SPI, but SPL must still support non DM driver. Another use case is the conversion of non DM/DTS SPI driver to support DM/DTS. When such driver needs to work in both SPL and U-Boot proper, the distinction is needed in Kconfig (also if SPL version of the driver supports OF_PLATDATA). In the end of the day one would have to support following use cases (in single driver file - e.g. mxs_spi.c): - U-Boot proper driver supporting DT/DTS - U-Boot proper driver without DT/DTS support (deprecated) - SPL driver without DT/DTS support - SPL (and TPL) driver with DT/DTS (when the SoC has enough resources to run full blown DT/DTS) - SPL driver with DT/DTS and SPL_OF_PLATDATA (when one have constrained environment with no fitImage and OF_LIBFDT support). Some boards do require SPI support (with DM) in SPL (TPL) and some only have DM_SPI{_FLASH} defined to allow compiling SPL. This patch converts #ifdef CONFIG_DM_SPI* to #if CONFIG_IS_ENABLED(DM_SPI) and provides corresponding defines in Kconfig. Signed-off-by: Lukasz Majewski <lukma@denx.de> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> [trini: Fixup a few platforms] Signed-off-by: Tom Rini <trini@konsulko.com> |
#
cd93d625 |
|
10-May-2020 |
Simon Glass <sjg@chromium.org> |
common: Drop linux/bitops.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
b14ccfcf |
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08-Apr-2020 |
Simon Glass <sjg@chromium.org> |
spi: Add SPI mode enums With ACPI we need to describe the settings of the SPI bus. Add enums to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> |
#
658df8bd |
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05-Dec-2019 |
Vignesh Raghavendra <vigneshr@ti.com> |
mtd: spi-nor-core: Add octal mode support Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
7bacce52 |
|
09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Check cs number before accessing slaves Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine |
#
ccdabd89 |
|
06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
c53b318e |
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20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
|
09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
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22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
|
27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@foss.st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
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d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
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83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
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184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
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c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
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6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
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8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
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7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
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279e26f5 |
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18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
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20343ff3 |
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30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
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3ac48d0e |
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10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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7a3eff4c |
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02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
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f8e2f92d |
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23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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2b11a41c |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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465c00d7 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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29ee0262 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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e26a2e2c |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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c40f6003 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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91292e0b |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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e5961f07 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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43655224 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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4dd12454 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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cdf33938 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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095a41d3 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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f5c3c033 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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bcbe3d15 |
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28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
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146bad96 |
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17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
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5d69df35 |
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26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
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bc5701e1 |
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20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
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60e2809a |
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17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
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9694b724 |
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19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
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d2f76316 |
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11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
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d0cff03e |
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25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
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54ba653a |
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12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
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6b18656a |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
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ff56bba2 |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
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c60e1f25 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
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d7af6a48 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
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248a0488 |
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15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
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056fbc73 |
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06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
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f77f4691 |
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12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
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c4ba0d82 |
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24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
|
03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
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10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
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07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
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07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
|
25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
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15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
|
28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
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24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
|
09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
|
16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
|
15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
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25-Sep-2002 |
Wolfgang Denk <wdenk> |
Initial revision |
#
54234592 |
|
19-Jul-2020 |
Simon Glass <sjg@chromium.org> |
mtd: spi: Drop SPI_XFER_MMAP* These two defines are no-longer supported. Drop them. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
70e5e67a |
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07-Jul-2020 |
Simon Glass <sjg@chromium.org> |
acpi: Support generation of SPI descriptor Add a function to write a SPI descriptor to the generated ACPI code. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
324ec5d7 |
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08-Jul-2020 |
Simon Glass <sjg@chromium.org> |
spi: Remove unnecessary #ifdefs in header file These prevent use of compile-time checks such as: if (CONFIG_IS_ENABLED(DM_SPI)) since, for example, if CONFIG_SPL_DM_SPI is not enabled then the definitions are not included by spi.h and the C code will not build. The #ifdefs are unnecessary since there are no conflicts with the pre-DM code. In any case we have almost switched over to driver model for SPI. Drop these #ifdefs from spi.h to fix a build warning on chromebook_coral in the following patch. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
56c40460 |
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04-Jun-2020 |
Lukasz Majewski <lukma@denx.de> |
spi: Convert CONFIG_DM_SPI* to CONFIG_$(SPL_TPL_)DM_SPI* This change allows more fine tuning of driver model based SPI support in SPL and TPL. It is now possible to explicitly enable/disable the DM_SPI support in SPL and TPL via Kconfig option. Before this change it was necessary to use: /* SPI Flash Configs */ #if defined(CONFIG_SPL_BUILD) #undef CONFIG_DM_SPI #undef CONFIG_DM_SPI_FLASH #undef CONFIG_SPI_FLASH_MTD #endif in the ./include/configs/<board>.h, which is error prone and shall be avoided when we strive to switch to Kconfig. The goal of this patch: Provide distinction for DM_SPI support in both U-Boot proper and SPL (TPL). Valid use case is when U-Boot proper wants to use DM_SPI, but SPL must still support non DM driver. Another use case is the conversion of non DM/DTS SPI driver to support DM/DTS. When such driver needs to work in both SPL and U-Boot proper, the distinction is needed in Kconfig (also if SPL version of the driver supports OF_PLATDATA). In the end of the day one would have to support following use cases (in single driver file - e.g. mxs_spi.c): - U-Boot proper driver supporting DT/DTS - U-Boot proper driver without DT/DTS support (deprecated) - SPL driver without DT/DTS support - SPL (and TPL) driver with DT/DTS (when the SoC has enough resources to run full blown DT/DTS) - SPL driver with DT/DTS and SPL_OF_PLATDATA (when one have constrained environment with no fitImage and OF_LIBFDT support). Some boards do require SPI support (with DM) in SPL (TPL) and some only have DM_SPI{_FLASH} defined to allow compiling SPL. This patch converts #ifdef CONFIG_DM_SPI* to #if CONFIG_IS_ENABLED(DM_SPI) and provides corresponding defines in Kconfig. Signed-off-by: Lukasz Majewski <lukma@denx.de> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> [trini: Fixup a few platforms] Signed-off-by: Tom Rini <trini@konsulko.com> |
#
cd93d625 |
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10-May-2020 |
Simon Glass <sjg@chromium.org> |
common: Drop linux/bitops.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
b14ccfcf |
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08-Apr-2020 |
Simon Glass <sjg@chromium.org> |
spi: Add SPI mode enums With ACPI we need to describe the settings of the SPI bus. Add enums to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> |
#
658df8bd |
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05-Dec-2019 |
Vignesh Raghavendra <vigneshr@ti.com> |
mtd: spi-nor-core: Add octal mode support Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
7bacce52 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Check cs number before accessing slaves Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine |
#
ccdabd89 |
|
06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
c53b318e |
|
20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
|
09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
|
22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
|
27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
d13f5b25 |
|
16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
|
06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
#
184fa1c8 |
|
15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
c5b88f29 |
|
15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
6c94bd12 |
|
23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
8af74edc |
|
23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
7ed8a024 |
|
21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
279e26f5 |
|
18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
20343ff3 |
|
30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
|
10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
|
08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
|
02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
|
23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
2b11a41c |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
1c17f5ec |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
465c00d7 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
|
28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
|
17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
|
26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
|
20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
|
17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
|
19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
|
11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
|
25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
|
12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
|
15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
|
06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
|
12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
|
24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
|
03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
|
10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
|
07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
|
07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
|
25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
|
15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
|
28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
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24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
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09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
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16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
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15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
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25-Sep-2002 |
Wolfgang Denk <wdenk> |
Initial revision |
#
70e5e67a |
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07-Jul-2020 |
Simon Glass <sjg@chromium.org> |
acpi: Support generation of SPI descriptor Add a function to write a SPI descriptor to the generated ACPI code. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
324ec5d7 |
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08-Jul-2020 |
Simon Glass <sjg@chromium.org> |
spi: Remove unnecessary #ifdefs in header file These prevent use of compile-time checks such as: if (CONFIG_IS_ENABLED(DM_SPI)) since, for example, if CONFIG_SPL_DM_SPI is not enabled then the definitions are not included by spi.h and the C code will not build. The #ifdefs are unnecessary since there are no conflicts with the pre-DM code. In any case we have almost switched over to driver model for SPI. Drop these #ifdefs from spi.h to fix a build warning on chromebook_coral in the following patch. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
56c40460 |
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04-Jun-2020 |
Lukasz Majewski <lukma@denx.de> |
spi: Convert CONFIG_DM_SPI* to CONFIG_$(SPL_TPL_)DM_SPI* This change allows more fine tuning of driver model based SPI support in SPL and TPL. It is now possible to explicitly enable/disable the DM_SPI support in SPL and TPL via Kconfig option. Before this change it was necessary to use: /* SPI Flash Configs */ #if defined(CONFIG_SPL_BUILD) #undef CONFIG_DM_SPI #undef CONFIG_DM_SPI_FLASH #undef CONFIG_SPI_FLASH_MTD #endif in the ./include/configs/<board>.h, which is error prone and shall be avoided when we strive to switch to Kconfig. The goal of this patch: Provide distinction for DM_SPI support in both U-Boot proper and SPL (TPL). Valid use case is when U-Boot proper wants to use DM_SPI, but SPL must still support non DM driver. Another use case is the conversion of non DM/DTS SPI driver to support DM/DTS. When such driver needs to work in both SPL and U-Boot proper, the distinction is needed in Kconfig (also if SPL version of the driver supports OF_PLATDATA). In the end of the day one would have to support following use cases (in single driver file - e.g. mxs_spi.c): - U-Boot proper driver supporting DT/DTS - U-Boot proper driver without DT/DTS support (deprecated) - SPL driver without DT/DTS support - SPL (and TPL) driver with DT/DTS (when the SoC has enough resources to run full blown DT/DTS) - SPL driver with DT/DTS and SPL_OF_PLATDATA (when one have constrained environment with no fitImage and OF_LIBFDT support). Some boards do require SPI support (with DM) in SPL (TPL) and some only have DM_SPI{_FLASH} defined to allow compiling SPL. This patch converts #ifdef CONFIG_DM_SPI* to #if CONFIG_IS_ENABLED(DM_SPI) and provides corresponding defines in Kconfig. Signed-off-by: Lukasz Majewski <lukma@denx.de> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> [trini: Fixup a few platforms] Signed-off-by: Tom Rini <trini@konsulko.com> |
#
cd93d625 |
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10-May-2020 |
Simon Glass <sjg@chromium.org> |
common: Drop linux/bitops.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
b14ccfcf |
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08-Apr-2020 |
Simon Glass <sjg@chromium.org> |
spi: Add SPI mode enums With ACPI we need to describe the settings of the SPI bus. Add enums to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> |
#
658df8bd |
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05-Dec-2019 |
Vignesh Raghavendra <vigneshr@ti.com> |
mtd: spi-nor-core: Add octal mode support Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
7bacce52 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Check cs number before accessing slaves Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine |
#
ccdabd89 |
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06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
c53b318e |
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20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
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22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
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27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
#
184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
279e26f5 |
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18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
20343ff3 |
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30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
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10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
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02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
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23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
2b11a41c |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
465c00d7 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
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28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
|
17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
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26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
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20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
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17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
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19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
|
11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
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25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
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12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
|
15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
|
06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
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12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
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24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
|
03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
|
10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
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07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
|
07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
|
25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
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15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
|
28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
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24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
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09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
|
16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
|
15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
|
25-Sep-2002 |
Wolfgang Denk <wdenk> |
Initial revision |
#
324ec5d7 |
|
08-Jul-2020 |
Simon Glass <sjg@chromium.org> |
spi: Remove unnecessary #ifdefs in header file These prevent use of compile-time checks such as: if (CONFIG_IS_ENABLED(DM_SPI)) since, for example, if CONFIG_SPL_DM_SPI is not enabled then the definitions are not included by spi.h and the C code will not build. The #ifdefs are unnecessary since there are no conflicts with the pre-DM code. In any case we have almost switched over to driver model for SPI. Drop these #ifdefs from spi.h to fix a build warning on chromebook_coral in the following patch. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
56c40460 |
|
04-Jun-2020 |
Lukasz Majewski <lukma@denx.de> |
spi: Convert CONFIG_DM_SPI* to CONFIG_$(SPL_TPL_)DM_SPI* This change allows more fine tuning of driver model based SPI support in SPL and TPL. It is now possible to explicitly enable/disable the DM_SPI support in SPL and TPL via Kconfig option. Before this change it was necessary to use: /* SPI Flash Configs */ #if defined(CONFIG_SPL_BUILD) #undef CONFIG_DM_SPI #undef CONFIG_DM_SPI_FLASH #undef CONFIG_SPI_FLASH_MTD #endif in the ./include/configs/<board>.h, which is error prone and shall be avoided when we strive to switch to Kconfig. The goal of this patch: Provide distinction for DM_SPI support in both U-Boot proper and SPL (TPL). Valid use case is when U-Boot proper wants to use DM_SPI, but SPL must still support non DM driver. Another use case is the conversion of non DM/DTS SPI driver to support DM/DTS. When such driver needs to work in both SPL and U-Boot proper, the distinction is needed in Kconfig (also if SPL version of the driver supports OF_PLATDATA). In the end of the day one would have to support following use cases (in single driver file - e.g. mxs_spi.c): - U-Boot proper driver supporting DT/DTS - U-Boot proper driver without DT/DTS support (deprecated) - SPL driver without DT/DTS support - SPL (and TPL) driver with DT/DTS (when the SoC has enough resources to run full blown DT/DTS) - SPL driver with DT/DTS and SPL_OF_PLATDATA (when one have constrained environment with no fitImage and OF_LIBFDT support). Some boards do require SPI support (with DM) in SPL (TPL) and some only have DM_SPI{_FLASH} defined to allow compiling SPL. This patch converts #ifdef CONFIG_DM_SPI* to #if CONFIG_IS_ENABLED(DM_SPI) and provides corresponding defines in Kconfig. Signed-off-by: Lukasz Majewski <lukma@denx.de> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> [trini: Fixup a few platforms] Signed-off-by: Tom Rini <trini@konsulko.com> |
#
cd93d625 |
|
10-May-2020 |
Simon Glass <sjg@chromium.org> |
common: Drop linux/bitops.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
b14ccfcf |
|
08-Apr-2020 |
Simon Glass <sjg@chromium.org> |
spi: Add SPI mode enums With ACPI we need to describe the settings of the SPI bus. Add enums to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> |
#
658df8bd |
|
05-Dec-2019 |
Vignesh Raghavendra <vigneshr@ti.com> |
mtd: spi-nor-core: Add octal mode support Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
7bacce52 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Check cs number before accessing slaves Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine |
#
ccdabd89 |
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06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
c53b318e |
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20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
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22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
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27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
#
184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
279e26f5 |
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18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
20343ff3 |
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30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
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10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
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02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
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23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
2b11a41c |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
465c00d7 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
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28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
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17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
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26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
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20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
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17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
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19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
|
11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
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25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
|
12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
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15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
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06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
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12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
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24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
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11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
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11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
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03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
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10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
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07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
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07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
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25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
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15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
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28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
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24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
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09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
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16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
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15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
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25-Sep-2002 |
Wolfgang Denk <wdenk> |
Initial revision |
#
56c40460 |
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04-Jun-2020 |
Lukasz Majewski <lukma@denx.de> |
spi: Convert CONFIG_DM_SPI* to CONFIG_$(SPL_TPL_)DM_SPI* This change allows more fine tuning of driver model based SPI support in SPL and TPL. It is now possible to explicitly enable/disable the DM_SPI support in SPL and TPL via Kconfig option. Before this change it was necessary to use: /* SPI Flash Configs */ #if defined(CONFIG_SPL_BUILD) #undef CONFIG_DM_SPI #undef CONFIG_DM_SPI_FLASH #undef CONFIG_SPI_FLASH_MTD #endif in the ./include/configs/<board>.h, which is error prone and shall be avoided when we strive to switch to Kconfig. The goal of this patch: Provide distinction for DM_SPI support in both U-Boot proper and SPL (TPL). Valid use case is when U-Boot proper wants to use DM_SPI, but SPL must still support non DM driver. Another use case is the conversion of non DM/DTS SPI driver to support DM/DTS. When such driver needs to work in both SPL and U-Boot proper, the distinction is needed in Kconfig (also if SPL version of the driver supports OF_PLATDATA). In the end of the day one would have to support following use cases (in single driver file - e.g. mxs_spi.c): - U-Boot proper driver supporting DT/DTS - U-Boot proper driver without DT/DTS support (deprecated) - SPL driver without DT/DTS support - SPL (and TPL) driver with DT/DTS (when the SoC has enough resources to run full blown DT/DTS) - SPL driver with DT/DTS and SPL_OF_PLATDATA (when one have constrained environment with no fitImage and OF_LIBFDT support). Some boards do require SPI support (with DM) in SPL (TPL) and some only have DM_SPI{_FLASH} defined to allow compiling SPL. This patch converts #ifdef CONFIG_DM_SPI* to #if CONFIG_IS_ENABLED(DM_SPI) and provides corresponding defines in Kconfig. Signed-off-by: Lukasz Majewski <lukma@denx.de> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> [trini: Fixup a few platforms] Signed-off-by: Tom Rini <trini@konsulko.com> |
#
cd93d625 |
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10-May-2020 |
Simon Glass <sjg@chromium.org> |
common: Drop linux/bitops.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org> |
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b14ccfcf |
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08-Apr-2020 |
Simon Glass <sjg@chromium.org> |
spi: Add SPI mode enums With ACPI we need to describe the settings of the SPI bus. Add enums to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> |
#
658df8bd |
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05-Dec-2019 |
Vignesh Raghavendra <vigneshr@ti.com> |
mtd: spi-nor-core: Add octal mode support Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
7bacce52 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Check cs number before accessing slaves Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine |
#
ccdabd89 |
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06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
c53b318e |
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20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
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22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
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27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
#
184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
6c94bd12 |
|
23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
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279e26f5 |
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18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
20343ff3 |
|
30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
|
10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
|
08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
|
02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
|
23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
2b11a41c |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
1c17f5ec |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
465c00d7 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
|
28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
|
17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
|
26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
|
20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
|
17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
|
19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
|
11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
|
25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
|
12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
|
15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
|
06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
|
12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
|
24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
|
03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
|
10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
|
07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
|
07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
|
25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
|
15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
|
28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
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24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
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09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
|
16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
|
15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
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25-Sep-2002 |
Wolfgang Denk <wdenk> |
Initial revision |
#
cd93d625 |
|
10-May-2020 |
Simon Glass <sjg@chromium.org> |
common: Drop linux/bitops.h from common header Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
b14ccfcf |
|
08-Apr-2020 |
Simon Glass <sjg@chromium.org> |
spi: Add SPI mode enums With ACPI we need to describe the settings of the SPI bus. Add enums to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> |
#
658df8bd |
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05-Dec-2019 |
Vignesh Raghavendra <vigneshr@ti.com> |
mtd: spi-nor-core: Add octal mode support Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
7bacce52 |
|
09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Check cs number before accessing slaves Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine |
#
ccdabd89 |
|
06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
c53b318e |
|
20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
|
09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
|
22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
|
27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
|
20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
d13f5b25 |
|
16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
|
06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
#
184fa1c8 |
|
15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
c5b88f29 |
|
15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
6c94bd12 |
|
23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
8af74edc |
|
23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
7ed8a024 |
|
21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
279e26f5 |
|
18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
20343ff3 |
|
30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
|
10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
|
08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
|
02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
|
23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
2b11a41c |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
465c00d7 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
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28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
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17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
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26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
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20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
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17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
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19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
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11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
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25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
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12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
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15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
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06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
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12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
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24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
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11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
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11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
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03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
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10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
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07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
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07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
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25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
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15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
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28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
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24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
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09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
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16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
|
15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
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25-Sep-2002 |
Wolfgang Denk <wdenk> |
Initial revision |
#
b14ccfcf |
|
08-Apr-2020 |
Simon Glass <sjg@chromium.org> |
spi: Add SPI mode enums With ACPI we need to describe the settings of the SPI bus. Add enums to handle this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> |
#
658df8bd |
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05-Dec-2019 |
Vignesh Raghavendra <vigneshr@ti.com> |
mtd: spi-nor-core: Add octal mode support Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
7bacce52 |
|
09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Check cs number before accessing slaves Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine |
#
ccdabd89 |
|
06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
c53b318e |
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20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
|
09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
|
22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
|
27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
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d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
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83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
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184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
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c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
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6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
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8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
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7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
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279e26f5 |
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18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
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20343ff3 |
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30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
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3ac48d0e |
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10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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7a3eff4c |
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02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
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f8e2f92d |
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23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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2b11a41c |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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465c00d7 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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29ee0262 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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e26a2e2c |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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c40f6003 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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91292e0b |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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e5961f07 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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43655224 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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4dd12454 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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cdf33938 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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095a41d3 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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f5c3c033 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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bcbe3d15 |
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28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
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146bad96 |
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17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
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5d69df35 |
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26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
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bc5701e1 |
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20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
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60e2809a |
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17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
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9694b724 |
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19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
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d2f76316 |
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11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
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d0cff03e |
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25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
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54ba653a |
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12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
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6b18656a |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
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ff56bba2 |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
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c60e1f25 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
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d7af6a48 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
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248a0488 |
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15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
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056fbc73 |
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06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
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f77f4691 |
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12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
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c4ba0d82 |
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24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
|
03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
|
10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
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07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
|
07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
|
25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
|
15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
|
28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
|
24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
|
09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
|
16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
|
15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
|
25-Sep-2002 |
Wolfgang Denk <wdenk> |
Initial revision |
#
658df8bd |
|
05-Dec-2019 |
Vignesh Raghavendra <vigneshr@ti.com> |
mtd: spi-nor-core: Add octal mode support Add support for Octal flash devices. Octal flash devices use 8 IO lines for data transfer. Currently only 1-1-8 Octal Read mode is supported. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
7bacce52 |
|
09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Check cs number before accessing slaves Add chip select number check in spi_find_chip_select(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine |
#
ccdabd89 |
|
06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
c53b318e |
|
20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
|
09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
|
22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
|
27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
|
20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
d13f5b25 |
|
16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
|
06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
#
184fa1c8 |
|
15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
c5b88f29 |
|
15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
6c94bd12 |
|
23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
8af74edc |
|
23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
7ed8a024 |
|
21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
279e26f5 |
|
18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
20343ff3 |
|
30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
|
10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
|
08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
|
02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
|
23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
2b11a41c |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
1c17f5ec |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
465c00d7 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
|
28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
|
17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
|
26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
|
20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
|
17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
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19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
|
11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
|
25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
|
12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
|
15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
|
06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
|
12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
|
24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
|
11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
|
03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
|
10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
|
07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
|
07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
|
25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
|
15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
|
28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
|
24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
|
09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
|
16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
|
15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
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25-Sep-2002 |
Wolfgang Denk <wdenk> |
Initial revision |
#
ccdabd89 |
|
06-Dec-2019 |
Simon Glass <sjg@chromium.org> |
spi: Correct operations check in dm_spi_xfer() At present we have to have an xfer() method even if it does nothing. This is not correct, so fix it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
c53b318e |
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20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
|
09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
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22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
|
27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <bbrezillon@kernel.org> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
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184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
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6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
279e26f5 |
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18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
20343ff3 |
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30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
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10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
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02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
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23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
2b11a41c |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
465c00d7 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
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28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
|
17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
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26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
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20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
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17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
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19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
|
11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
|
25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
|
12-Dec-2014 |
Jagan Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
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15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
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06-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
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12-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
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24-Dec-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
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11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
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11-Jan-2014 |
Jagan Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
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03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
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10-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
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07-Oct-2013 |
Jagan Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
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07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
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25-Sep-2013 |
Jagan Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
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15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
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28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
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26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
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24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
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09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
|
16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
|
15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
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25-Sep-2002 |
Wolfgang Denk <wdenk> |
Initial revision |
#
c53b318e |
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20-Oct-2019 |
Simon Glass <sjg@chromium.org> |
spi: Add support for memory-mapped flash On x86 platforms the SPI flash can be mapped into memory so that the contents can be read with normal memory accesses. Add a new SPI method to find the location of the SPI flash in memory. This differs from the existing device-tree "memory-map" mechanism in that the location can be discovered at run-time. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> |
#
4b060003 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
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22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
|
27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <boris.brezillon@bootlin.com> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
#
184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
279e26f5 |
|
18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
20343ff3 |
|
30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
|
10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
|
02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
|
23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
2b11a41c |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
465c00d7 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
|
28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
|
17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
|
26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
|
20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
|
17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
|
19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
|
11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
|
25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
|
12-Dec-2014 |
Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
|
15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
|
06-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
|
12-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
|
24-Dec-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
|
11-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
|
11-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
|
03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
|
10-Oct-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
|
07-Oct-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
|
07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
|
25-Sep-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
|
15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
|
28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
|
24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
|
09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
|
16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
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15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
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25-Sep-2002 |
wdenk <wdenk> |
Initial revision |
#
4b060003 |
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09-Sep-2019 |
Bin Meng <bmeng.cn@gmail.com> |
dm: spi: Change cs_info op to return -EINVAL for invalid cs num We need distinguish the following two situations in various SPI APIs: - given chip select num is invalid - given chip select num is valid, but no device is attached Currently -ENODEV is returned for both cases. For the first case, it's more reasonable to return -EINVAL instead of -ENODEV for invalid chip select numbers. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> |
#
8473b321 |
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22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
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27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
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e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
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d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <boris.brezillon@bootlin.com> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
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83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
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184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
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c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
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6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
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8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
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7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
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279e26f5 |
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18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
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20343ff3 |
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30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
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3ac48d0e |
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10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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7a3eff4c |
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02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
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f8e2f92d |
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23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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2b11a41c |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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465c00d7 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
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095a41d3 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
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28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
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17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
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5d69df35 |
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26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
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20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
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60e2809a |
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17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
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9694b724 |
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19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
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11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
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25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
|
12-Dec-2014 |
Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
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15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
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06-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
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12-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
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24-Dec-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
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11-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
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11-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
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03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
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10-Oct-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
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07-Oct-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
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07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
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25-Sep-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
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08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
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15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
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28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
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26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
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24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
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09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
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16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
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15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
#
77f85581 |
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25-Sep-2002 |
wdenk <wdenk> |
Initial revision |
#
8473b321 |
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22-Jul-2019 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Add spi_write_then_read Add support for SPI synchronous write followed by read, this is common interface call from spi-nor to spi drivers. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Adam Ford <aford173@gmail.com> #da850-evm |
#
b0cc1b84 |
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27-Feb-2019 |
Patrick Delaunay <patrick.delaunay@st.com> |
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com> |
#
e2cae514 |
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20-Nov-2018 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Remove unused spi_init Remove spi_init definition which never used on respective code since from many years. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <boris.brezillon@bootlin.com> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com> |
#
83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> |
#
184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc> |
#
6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> |
#
279e26f5 |
|
18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
20343ff3 |
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30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> |
#
3ac48d0e |
|
10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
7a3eff4c |
|
02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org> |
#
f8e2f92d |
|
23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
2b11a41c |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
1c17f5ec |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
465c00d7 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
29ee0262 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e26a2e2c |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
c40f6003 |
|
28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
91292e0b |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
e5961f07 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
43655224 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
4dd12454 |
|
16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
cdf33938 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
095a41d3 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
f5c3c033 |
|
13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bcbe3d15 |
|
28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com> |
#
146bad96 |
|
17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> |
#
5d69df35 |
|
26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com> |
#
bc5701e1 |
|
20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
60e2809a |
|
17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
9694b724 |
|
19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d2f76316 |
|
11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d0cff03e |
|
25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
54ba653a |
|
12-Dec-2014 |
Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> |
#
6b18656a |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
ff56bba2 |
|
11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de> |
#
c60e1f25 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
d7af6a48 |
|
13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons) |
#
248a0488 |
|
15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
056fbc73 |
|
06-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
f77f4691 |
|
12-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
c4ba0d82 |
|
24-Dec-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
3163aaa6 |
|
11-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
4e09cc1e |
|
11-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
0efc0249 |
|
03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
4700219d |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
5753d09b |
|
16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> |
#
469146c0 |
|
10-Oct-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com> |
#
ce22b922 |
|
07-Oct-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
004f15b6 |
|
07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
1b1bd9a7 |
|
25-Sep-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
#
1a459660 |
|
08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> |
#
f3424c55 |
|
15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> |
#
bb786b84 |
|
28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
#
0c456cee |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
ba6c3ce9 |
|
11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org> |
#
273feafe |
|
26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> |
#
fa1423e7 |
|
24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
#
f8cc312b |
|
09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com> |
#
d255bb0e |
|
16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de> |
#
38254f45 |
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15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> |
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77f85581 |
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25-Sep-2002 |
wdenk <wdenk> |
Initial revision |
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d13f5b25 |
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16-Aug-2018 |
Boris Brezillon <boris.brezillon@bootlin.com> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jagan Teki <jagan@openedev.com>
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83d290c5 |
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06-May-2018 |
Tom Rini <trini@konsulko.com> |
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
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184fa1c8 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove spi_setup_slave_fdt A previous patch removed the spi_flash_probe_fdt function, which contained the last call of the spi_setup_slave_fdt function, which is now equally obsolete. This patch removes the function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc>
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#
c5b88f29 |
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15-Jan-2018 |
Mario Six <mario.six@gdsys.cc> |
spi: Remove obsolete spi_base_setup_slave_fdt 0efc024 ("spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node") added a helper function spi_base_setup_slave_fdt to to set up a SPI slave from a given FDT blob. The only user was the exynos SPI driver. But commit 73186c9 ("dm: exynos: Convert SPI to driver model") removed the use of this function, hence rendering it obsolete. Remove this function, as well as the CONFIG_OF_SPI option, which guarded only this function. Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Signed-off-by: Mario Six <mario.six@gdsys.cc>
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6c94bd12 |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: consider command bytes when sending transfers Command bytes are part of the written bytes and they should be taken into account when sending a spi transfer. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
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8af74edc |
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23-Jan-2018 |
Álvaro Fernández Rojas <noltari@gmail.com> |
drivers: spi: allow limiting reads For some SPI controllers it's not possible to keep the CS active between transfers and they are limited to a known number of bytes. This splits spi_flash reads into different iterations in order to respect the SPI controller limits. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
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7ed8a024 |
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21-Nov-2017 |
Jagan Teki <jagan@amarulasolutions.com> |
spi: Zap unneeded option option from spi_slave {} never used so drop the same. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
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279e26f5 |
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18-May-2017 |
Simon Glass <sjg@chromium.org> |
dm: spi: Convert uclass to livetree Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass <sjg@chromium.org>
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20343ff3 |
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30-Oct-2016 |
Jagan Teki <jagan@openedev.com> |
spi: Remove dual flash options/flags Dual flash code in spi are usually take the spi controller to work with dual connected flash devices. Usually these dual connection operation's are referred to flash controller protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. So, this patch remove the dual_flash options or flags in sf which are triggered from spi controller side. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: York Sun <york.sun@nxp.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com>
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3ac48d0e |
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10-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_RX_FAST Removed SPI_RX_FAST since default read for spi slaves are always 1-wire fast read. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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08fe9c29 |
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08-Aug-2016 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode for rx mode flags Make rx mode flags as generic to spi, earlier mode_rx is maintained separately because of some flash specific code. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Vignesh R <vigneshr@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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7a3eff4c |
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02-May-2016 |
Peng Fan <van.freenix@gmail.com> |
dm: spi: introduce dm api Introduce dm_spi_claim_bus, dm_spi_release_bus and dm_spi_xfer Convert spi_claim_bus, spi_release_bus and spi_xfer to use the new API. Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Jagan Teki <jteki@openedev.com> Acked-by: Simon Glass <sjg@chromium.org>
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#
f8e2f92d |
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23-Dec-2015 |
Mugunthan V N <mugunthanvnm@ti.com> |
spi: Add support for dual and quad mode spi bus can support dual and quad wire data transfers for tx and rx. So defining dual and quad modes for both tx and rx. Also add support to parse bus width used for spi tx and rx transfers. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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2b11a41c |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Add SPI_TX_DUAL mode Added SPI_TX_DUAL mode flag. Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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1c17f5ec |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
sf: Make IO modes at last in read modes SLOW, FAST, DUAL, DUAL_IO, QUAD, QUAD_IO changed order to SLOW, FAST, DUAL, QUAD, DUAL_IO, QUAD_IO Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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465c00d7 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Minor cleanup - Add comments on mode_rx - Tab space's Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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#
29ee0262 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use BIT macro Used BIT macro like 1 << nr as BIT(nr) where nr is 0...n Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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#
e26a2e2c |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Fix bit assignment with flags Fixed bit assignment with flags members on spi_slave{} Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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#
c40f6003 |
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28-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Move flags macro's to spi_slave{} members This patch moves flags macro's to respective member position on spi_slave{}, for better readabilty and finding the respective member macro's easily. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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#
91292e0b |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename op_mode_rx to mode_rx Since spi rx mode macro's are renamed to simple and meaninfull, this patch will rename the respective structure members. Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Jagan Teki <jteki@openedev.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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#
e5961f07 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_OPM_RX_* to SPI_RX_* SPI_OPM_RX_AS - SPI_RX_SLOW SPI_OPM_RX_AF - SPI_RX_FAST SPI_OPM_RX_DOUT - SPI_RX_DUAL SPI_OPM_RX_QOF - SPI_RX_QUAD Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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#
43655224 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_DIO|QIOF SPI_OPM_RX_DIO and SPI_OPM_RX_QIOF are rx IO commands/opmodes for dual and quad. Usually IO operation's are referred to flash protocol rather with spi controller protocol, these are still present in flash side for the usage of spi-nor controllers. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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#
4dd12454 |
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16-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Remove SPI_OPM_RX_EXTN SPI_OPM_RX_EXTN is a combination of all rx opmode's and spi driver shall use any one of the rx mode at a time not the combination and it is true in case of flash where spi_flash_table mention combination of supported read opmodes so-that the required one will pick based on the rx mode from spi driver. Cc: Simon Glass <sjg@chromium.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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#
cdf33938 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Rename SPI_TX_BP|QPP to SPI_TX_BYTE|QUAD Since SPI_TX_* are spi_slave{} members so use spi protocol notation instead spi flash programming, like SPI_TX_BP => SPI_TX_BYTE SPI_TX_QPP => SPI_TX_QUAD Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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095a41d3 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: Use mode instead of op_mode_tx Used mode member from spi_slave{} instead of op_mode_tx. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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#
f5c3c033 |
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13-Dec-2015 |
Jagan Teki <jteki@openedev.com> |
spi: make mode visible to both dm and non-dm Couldn't find the exact reason to define 'mode' for dm, probably it is not using in non-dm drivers but it need to visible both dm and non-dm as mode data is getting dereferred in spi flash core ie common to both. Cc: Simon Glass <sjg@chromium.org> Tested-by: Jagan Teki <jteki@openedev.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Jagan Teki <jteki@openedev.com>
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bcbe3d15 |
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28-Sep-2015 |
Simon Glass <sjg@chromium.org> |
dm: Rename dev_get_parentdata() to dev_get_parent_priv() The current name is inconsistent with other driver model data access functions. Rename it and fix up all users. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
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146bad96 |
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17-Aug-2015 |
Tom Rini <trini@ti.com> |
sf: ops: Add spi_flash_copy_mmap function When doing a memory mapped copy we may have DMA available and thus need to have this copy abstracted so that the driver can do it, rather than a simple memcpy. Signed-off-by: Tom Rini <trini@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Jagan Teki <jteki@openedev.com>
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5d69df35 |
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26-Jun-2015 |
Jagan Teki <jteki@openedev.com> |
spi/sf: Minor cleanups - Adjust tab spaces - Add comments Signed-off-by: Jagan Teki <jteki@openedev.com>
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bc5701e1 |
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20-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct the comment on spi_get_ops() This comment should refer to SPI, not serial. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
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60e2809a |
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17-Feb-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Avoid setting the speed with every transfer Only set the speed if it has changed from last time. Since the speed will be 0 when the device is probed it will always be changed on the first transfer after the device is probed. Signed-off-by: Simon Glass <sjg@chromium.org>
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9694b724 |
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19-Apr-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct SPI claim/release_bus() methods These methods should be passed a slave device, not a bus. This matches the old SPI interface. It is important to know which device is claiming the bus so passing a bus is not that useful. Reported-by: Haikun Wang <haikun.wang@freescale.com> Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Peng Fan <Peng.Fan@freescale.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
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d2f76316 |
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11-Mar-2015 |
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> |
sf: Correct the macros as per new array fast read command Correct the macros as per insertion of array fast read command CMD_READ_ARRAY_FAST in spi_read_cmds_array in file sf_probe.c Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
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d0cff03e |
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25-Jan-2015 |
Simon Glass <sjg@chromium.org> |
dm: spi: Move slave details to child platdata At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass <sjg@chromium.org>
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54ba653a |
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12-Dec-2014 |
Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> |
sf: Enable byte program support Enabled byte program support for sst flashes in sf. Few controllers will only support BP, so this patch gives a tx transfer flag to set the BP so-that sf will operate on byte program transfer. A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI controller to use byte program op for SST flash. Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
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6b18656a |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Use device_bind_driver() instead of our own function The SPI function does the same thing, so we may as well just use the new generic function. The 'cs' parameter was not actually used, so can be dropped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de>
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ff56bba2 |
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11-Nov-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Correct handling of SPI chip selects in sandbox This code was not updated when the chip select handling was adjusted. Fix it to call the correct function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Acked-by: Heiko Schocher <hs@denx.de>
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c60e1f25 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: sandbox: Add a SPI emulation uclass U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
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d7af6a48 |
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13-Oct-2014 |
Simon Glass <sjg@chromium.org> |
dm: spi: Add a uclass for SPI Add a uclass which provides access to SPI buses and includes operations required by SPI. For a time driver model will need to co-exist with the legacy SPI interface so some parts of the header file are changed depending on which is in use. The exports are adjusted also since some functions are not available with driver model. Boards must define CONFIG_DM_SPI to use driver model for SPI. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> (Discussed some follow-up comments which will address in future add-ons)
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248a0488 |
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15-Sep-2014 |
Simon Glass <sjg@chromium.org> |
spi: Add brackets and tidy defines in spi.h Some of the #defines in spi.h are not bracketed. To avoid future mistakes add brackets. Also add an explanatory comment for SPI_CONN_DUAL_... Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
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056fbc73 |
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06-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_PARALLEL This patch added support for accessing dual memories in parallel connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
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f77f4691 |
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12-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add dual memories support - DUAL_STACKED This patch added support for accessing dual memories in stacked connection with single chipselect line from controller. For more info - see doc/SPI/README.dual-flash Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
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c4ba0d82 |
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24-Dec-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add QUAD_IO_FAST read support This patch adds support QUAD_IO_FAST read command. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
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3163aaa6 |
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11-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add quad read/write commands support This patch add quad commands support like - QUAD_PAGE_PROGRAM => for write program - QUAD_OUTPUT_FAST ->> for read program Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
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4e09cc1e |
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11-Jan-2014 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Add extended read commands support Current sf uses FAST_READ command, this patch adds support to use the different/extended read command. This implementation will determine the fastest command by taking the supported commands from the flash and the controller, controller is always been a priority. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
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0efc0249 |
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03-Dec-2013 |
Simon Glass <sjg@chromium.org> |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node This allows us to put the SPI flash chip inside the SPI interface node, with U-Boot finding the correct bus and chip select automatically. Signed-off-by: Simon Glass <sjg@chromium.org>
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4700219d |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: define SPI_XFER_ONCE The flag combination "SPI_XFER_BEGIN | SPI_XFER_END" is a common use case of spi_xfer, and it can easily cause an already long line (spi_xfer takes 5 parameters) to go over the 80 character limit. define SPI_XFER_ONCE to be a shorter version of the above flag combination. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
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5753d09b |
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16-Oct-2013 |
Nikita Kiryanov <nikita@compulab.co.il> |
spi: omap3: add support for more word lengths Current implementation only supports 8 bit word lengths, even though omap3 can handle anything between 4 and 32. Update the spi interface to support changing the SPI word length, and implement it in omap3_spi driver to support the full range of possible word lengths. This implementation is backwards compatible by defaulting to the old behavior of 8 bit word lengths. Also, it required a change to the omap3_spi non static I/O functions, but since they are not used anywhere else, no collateral changes are required. Cc: Tom Rini <trini@ti.com> Cc: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
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469146c0 |
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10-Oct-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Minor cleanups. - Add comments. - Renamed few macros. - Add tabs. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Bo Shen <voice.shen@atmel.com>
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ce22b922 |
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07-Oct-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
sf: Minor cleanups - Add spaces, tabs - Commenting. - Rearrange code. - Add static qualifier for missing func. - Remove memory_map from ramtron.c - Ramtron: spi_flash_internal.h -> sf_internal.h Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
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004f15b6 |
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07-Oct-2013 |
Poddar, Sourav <sourav.poddar@ti.com> |
sf: Add memory mapped read support Qspi controller can have a memory mapped port which can be used for data read. Added support to enable memory mapped port read. This patch enables the following: - It enables exchange of memory map address between mtd and qspi through the introduction of "memory_map" flag. - Add support to communicate to the driver that memory mapped transfer is to be started through introduction of new flags like "SPI_XFER_MEM_MAP" and "SPI_XFER_MEM_MAP_END". This will enable the spi controller to do memory mapped configurations if required. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
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1b1bd9a7 |
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25-Sep-2013 |
Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
spi: spi cleanups - Rearranged multi-line comment style. - Add tabs. - Add spaces. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
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1a459660 |
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08-Jul-2013 |
Wolfgang Denk <wd@denx.de> |
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
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f3424c55 |
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15-May-2013 |
Hung-ying Tyan <tyanh@chromium.org> |
cros: exynos: add SPI support for cros_ec This patch adds SPI support for carrying out the cros_ec protocol. Signed-off-by: Hung-ying Tyan <tyanh@chromium.org> Signed-off-by: Randall Spangler <rspangler@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
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bb786b84 |
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28-May-2013 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
spi: Add support for preamble bytes A SPI slave may take time to react to a request. For SPI flash devices this time is defined as one bit time, or a whole byte for 'fast read' mode. If the SPI slave is another CPU, then the time it takes to react may vary. It is convenient to allow the slave device to tag the start of the actual reply so that the host can determine when this 'preamble' finishes and the actual message starts. Add a preamble flag to the available SPI flags. If supported by the driver then it will ignore any received bytes before the preamble on each transaction. This ensures that reliable communication with the slave is possible. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
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0c456cee |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add parameter for maximum write size Some SPI controllers (e.g. Intel ICH) have a limit on the number of SPI bytes that can be written at a time. Add this as a parameter so that clients of the SPI interface can respect this value. Signed-off-by: Simon Glass <sjg@chromium.org>
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ba6c3ce9 |
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11-Mar-2013 |
Simon Glass <sjg@chromium.org> |
spi: Add function to allocate a new SPI slave At present it is difficult to extend the SPI structure since all drivers allocate it themselves, and few of them zero all fields. Add a new function spi_alloc_slave() which can be used by SPI drivers to perform this allocation, and thus ensure that all drivers can better cope with SPI structure changes. Signed-off-by: Simon Glass <sjg@chromium.org>
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273feafe |
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26-Apr-2011 |
Mingkai Hu <Mingkai.hu@freescale.com> |
powerpc: eSPI and eSPI controller support Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Singed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> Signed-off-by: Shaohui Xie <b21989@freescale.com> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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fa1423e7 |
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24-Dec-2010 |
Thomas Chou <thomas@wytron.com.tw> |
spi: add spi_set_speed func This func helps mmc_spi driver set correct speed for mmc/sd, as mmc card needs 400KHz clock for spi mode initialization. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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f8cc312b |
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09-Jun-2008 |
Ben Warren <biggerbadderben@gmail.com> |
Move conditional compilation of MPC8XXX SPI driver to Makefile Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
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d255bb0e |
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16-May-2008 |
Haavard Skinnemoen <hskinnemoen@atmel.com> |
SPI API improvements This patch gets rid of the spi_chipsel table and adds a handful of new functions that makes the SPI layer cleaner and more flexible. Instead of the spi_chipsel table, each board that wants to use SPI gets to implement three hooks: * spi_cs_activate(): Activates the chipselect for a given slave * spi_cs_deactivate(): Deactivates the chipselect for a given slave * spi_cs_is_valid(): Determines if the given bus/chipselect combination can be activated. Not all drivers may need those extra functions however. If that's the case, the board code may just leave them out (assuming they know what the driver needs) or rely on the linker to strip them out (assuming --gc-sections is being used.) To set up communication parameters for a given slave, the driver needs to call spi_setup_slave(). This returns a pointer to an opaque spi_slave struct which must be passed as a parameter to subsequent SPI calls. This struct can be freed by calling spi_free_slave(), but most driver probably don't want to do this. Before starting one or more SPI transfers, the driver must call spi_claim_bus() to gain exclusive access to the SPI bus and initialize the hardware. When all transfers are done, the driver must call spi_release_bus() to make the bus available to others, and possibly shut down the SPI controller hardware. spi_xfer() behaves mostly the same as before, but it now takes a spi_slave parameter instead of a spi_chipsel function pointer. It also got a new parameter, flags, which is used to specify chip select behaviour. This may be extended with other flags in the future. This patch has been build-tested on all powerpc and arm boards involved. I have not tested NIOS since I don't have a toolchain for it installed, so I expect some breakage there even though I've tried fixing up everything I could find by visual inspection. I have run-time tested this on AVR32 ATNGW100 using the atmel_spi and DataFlash drivers posted as a follow-up. I'd like some help testing other boards that use the existing SPI API. But most of all, I'd like some comments on the new API. Is this stuff usable for everyone? If not, why? Changed in v4: - Build fixes for various boards, drivers and commands - Provide common struct spi_slave definition that can be extended by drivers - Pass a struct spi_slave * to spi_cs_activate and spi_cs_deactivate - Make default bus and mode build-time configurable - Override default SPI bus ID and mode on mx32ads and imx31_litekit. Changed in v3: - Add opaque struct spi_slave for controller-specific data associated with a slave. - Add spi_claim_bus() and spi_release_bus() - Add spi_free_slave() - spi_setup() is now called spi_setup_slave() and returns a struct spi_slave - soft_spi now supports four SPI modes (CPOL|CPHA) - Add bus parameter to spi_setup_slave() - Convert the new i.MX32 SPI driver - Convert the new MC13783 RTC driver Changed in v2: - Convert the mpc8xxx_spi driver and the mpc8349emds board to the new API. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Tested-by: Guennadi Liakhovetski <lg@denx.de>
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38254f45 |
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15-Apr-2008 |
Guennadi Liakhovetski <lg@denx.de> |
New i.MX31 SPI driver This is an SPI driver for i.MX and MXC based SoCs from Freescale. So far only implemented and tested on i.MX31, can with a modified register layout and definitions be used for i.MX27, I think, MXC CPUs have similar SPI controllers too. Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
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77f85581 |
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25-Sep-2002 |
wdenk <wdenk> |
Initial revision
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