fdt: Allow the devicetree to come from a bloblist

Standard passage provides for a bloblist to be passed from one firmware
phase to the next. That can be used to pass the devicetree along as well.
Add an option to support this.

Tests for this will be added as part of the Universal Payload work.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

include: fdtdec: decouple fdt_addr_t and phys_addr_t size

The DT specification supports CPUs with both 32-bit and 64-bit addressing
capabilities. In U-boot the fdt_addr_t and phys_addr_t size are coupled
by a typedef. The MTD NAND drivers for 32-bit CPU's can describe partitions
with a 64-bit reg property. These partitions synced from Linux end up with
the wrong offset and sizes when only the lower 32-bit is passed.
Decouple the fdt_addr_t and phys_addr_t size as they don't necessary
match.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

mtd: nand: sunxi: Convert from fdtdec to ofnode

As a first step toward converting this driver to the driver model, use
the ofnode abstraction to replace direct references to the FDT blob.

Using ofnode_read_u32_index removes an extra pair of loops and makes the
allwinner,rb property optional, matching the devicetree binding.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

fdt: Avoid exporting fdtdec_prepare_fdt()

This function is not used outside this file. Make it static.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdtdec.h: Remove gurads around fdtdec_resetup function

This function has not been conditionally compiled for some time, so
remove the incorrect guards around the declaration.

Signed-off-by: Tom Rini <trini@konsulko.com>

dm: Fix OF_BAD_ADDR definition

When OF_LIVE flag is enabled on a 64 bits platform, there is an
issue when dev_read_addr() is called and need to perform an address
translation using __of_translate_address().

In case of error, __of_translate_address() return's value is OF_BAD_ADDR
(wich is defined in include/dm/of.h to ((u64)-1) = 0xffffffffffffffff).
The return value of dev_read_addr() is often compared to FDT_ADDR_T_NONE
which is defined as (-1U) = 0xffffffff.
In this case the comparison is always false.

To fix this issue, define FDT_ADDR_T_NONE to (ulong)(-1) in case of
AARCH64. Update accordingly related tests.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

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>

fdt: Drop SPL_BUILD macro

This old macro is not needed anymore since we can use IS_ENABLED() now.
Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Record where the devicetree came from

Keep track of where the devicetree came from, so we can report this later.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Don't call board_fdt_blob_setup() without OF_BOARD

At present this override function is called even when OF_BOARD is not
enabled. This makes it impossible to disable this feature and in fact
makes the OF_BOARD option useless.

Reinstate its intended purpose, so that it is possible to switch between
the appended devicetree and one provided by the board's custom function.

A follower patch adds warnings for this scenario, but for now we don't
have a Kconfig that definitively tells us that OF_BOARD should be used.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Drop CONFIG_SPL_BUILD check in fdtdec_setup()

Move this to the header file to clean up the C code.

Signed-off-by: Simon Glass <sjg@chromium.org>

sandbox: Remove OF_HOSTFILE

OF_HOSTFILE is used on sandbox configs only. Although it's pretty
unique and not causing any confusions, we are better of having simpler
config options for the DTB.

So let's replace that with the existing OF_BOARD. U-Boot would then
have only three config options for the DTB origin.
- OF_SEPARATE, build separately from U-Boot
- OF_BOARD, board specific way of providing the DTB
- OF_EMBED embedded in the u-boot binary(should not be used in production

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

treewide: Remove OF_PRIOR_STAGE

The previous patches removed OF_PRIOR_STAGE from the last consumers of the
Kconfig option. Cleanup any references to it in documentation, code and
configuration options.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdtdec: Support reserved-memory flags

Reserved memory nodes can have additional flags. Support reading and
writing these flags to ensure that reserved memory nodes can be properly
parsed and emitted.

This converts support for the existing "no-map" flag to avoid extending
the argument list for fdtdec_add_reserved_memory() to excessive length.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdtdec: Reorder fdtdec_set_carveout() parameters for consistency

The fdtdec_set_carveout() function's parameters are inconsistent with
the parameters passed to fdtdec_add_reserved_memory(). Fix up the order
to make it more consistent.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdtdec: Support compatible string list for reserved memory

Reserved memory nodes can have a compatible string list to identify the
type of reserved memory that they represent. Support specifying an
optional compatible string list when creating these nodes.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdtdec: Support retrieving the name of a carveout

When retrieving a given carveout for a device, allow callers to query
the name. This helps differentiating between carveouts when there are
more than one.

This is also useful when copying carveouts to help assign a meaningful
name that cannot always be guessed.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

treewide: fdt: Move fdt_get_config_... to ofnode_conf_read...

The current API is outdated as it requires a devicetree pointer.

Move these functions to use the ofnode API and update this globally. Add
some tests while we are here.

Correct the call in exynos_dsim_config_parse_dt() which is obviously
wrong.

Signed-off-by: Simon Glass <sjg@chromium.org>

samsung: exynos: Convert SROMC interface to a driver

Add a bus driver for this and use it to configure the bus parameters for
the Ethernet interface. Drop the old pre-driver-model code.

Switch over to use driver model for Ethernet.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

dm: core: Add size operations on device tree references

Add functions to add size of addresses in the device tree using ofnode
references.

If the size is not set, return FDT_SIZE_T_NONE.

Signed-off-by: Chen Guanqiao <chenguanqiao@kuaishou.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdtdec: optionally add property no-map to created reserved memory node

Add boolean input argument @no_map to helper function
fdtdec_add_reserved_memory() to add or not "no-map" property
for an added reserved memory node.

Property no-map is used by the Linux kernel to not not map memory
in its static memory mapping. It is needed for example for the|
consistency of system non-cached memory and to prevent speculative
accesses to some firewalled memory.

No functional change. A later change will update to OPTEE library to
add no-map property to OP-TEE reserved memory nodes.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdtdec: Add API to read pci bus-range property

Add fdtdec_get_pci_bus_range to read bus-range property
values.

Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

lib: fdt: Introduce fdtdec_setup_mem_size_base_lowest()

New function should be called from board dram_init() because it initialized
gd->ram_base/ram_size. It finds the lowest available memory.

On systems with multiple memory nodes finding out the first memory node by
fdtdec_setup_mem_size_base() is not enough because this memory can be above
actual U-Boot VA mapping. Currently only mapping till 39bit is supported
(Full 44bit mapping was removed by commit 7985cdf74b28 ("arm64: Remove
non-full-va map code")).
If DT starts with the first memory node above 39bit address then system can
be unpredictable.

The function is available only when multiple memory bank support is
enabled.

Calling fdtdec_setup_memory_banksize() from dram_init() is not possible
because fdtdec_setup_memory_banksize() is saving dram information to bd
structure which is placed on stack but not initialized at this time. Also
stack is placed at location setup in dram_init().

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Revert "lib: fdt: Split fdtdec_setup_mem_size_base()"

This reverts commit 3ebe09d09a407f93022d945a205c5318239eb3f6.

There is no user of this split function that's why remove it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Revert "lib: fdt: Split fdtdec_setup_memory_banksize()"

This reverts commit 118f4d4559a4386fa87a1e2509e84a1986b24a34.

There is no user of this split function that's why remove it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Revert "Merge tag 'dm-pull-20jul20' of git://git.denx.de/u-boot-dm"

This reverts commit 5d3a21df6694ebd66d5c34c9d62a26edc7456fc7, reversing
changes made to 56d37f1c564107e27d873181d838571b7d7860e7.

Unfortunately this is causing CI failures:
https://travis-ci.org/github/trini/u-boot/jobs/711313649

Signed-off-by: Tom Rini <trini@konsulko.com>

Revert "lib: fdt: Split fdtdec_setup_mem_size_base()"

This reverts commit 3ebe09d09a407f93022d945a205c5318239eb3f6.

There is no user of this split function that's why remove it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Revert "lib: fdt: Split fdtdec_setup_memory_banksize()"

This reverts commit 118f4d4559a4386fa87a1e2509e84a1986b24a34.

There is no user of this split function that's why remove it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdtdec: Add weak function to patch U-Boot DT right after fdtdec_setup()

Add weak function which is called right after fdtdec_setup() configured
the U-Boot DT. This permits board-specific adjustments to the U-Boot DT
before U-Boot starts parsing the DT. This could be used e.g. to patch in
various custom nodes or merge in DT fragments from prior-stage firmware.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>

dm: pci: Update a few more interfaces for const udevice *

Tidy up a few places where const * should be used.

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Move embedded fdt location to fdtdec.h

These declarations are only used in fdtdec.c so move them to its header
file.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdtdec: only create phandle if caller wants it in fdtdec_add_reserved_memory()

The phandlep pointer returning the phandle to the caller is optional
and if it is not set when calling fdtdec_add_reserved_memory() it is
highly likely that the caller is not interested in a phandle to the
created reserved-memory area and really just wants that area added.

So just don't create a phandle in that case.

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdtdec: protect against another NULL phandlep in fdtdec_add_reserved_memory()

The change adding fdtdec_add_reserved_memory() already protected the added
phandle against the phandlep being NULL - making the phandlep var optional.

But in the early code checking for an already existing carveout this check
was not done and thus the phandle assignment could run into trouble,
so add a check there as well, which makes the function still return
successfully if a matching region is found, even though no-one wants to
work with the phandle.

Fixes: c9222a08b3f7 ("fdtdec: Implement fdtdec_add_reserved_memory()")
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

dm: core: Drop fdtdec_get_pci_addr()

This function ise effectively replaced by ofnode_read_pci_addr() which
works with flat tree. Delete it to avoid code duplication.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL

The current preprocessor logic prevents CONFIG_OF_PRIOR_STAGE from being
used in U-Boot SPL. Change the logic to also make it available in U-Boot
SPL.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>

fdtdec: Add fdtdec_set_ethernet_mac_address()

This function can be used to set the local MAC address for the default
Ethernet interface in its device tree node. The default interface is
identified by the "ethernet" alias.

One case where this is useful is for devices that store their MAC
address in a custom location. Once extracted, board code can store the
MAC address in U-Boot's control DTB so that it will automatically be
used by the Ethernet uclass.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdtdec: Remove fdt_{addr,size}_unpack()

U-Boot already defines the {upper,lower}_32_bits() macros that have the
same purpose. Use the existing macros instead of defining new APIs.

Signed-off-by: Thierry Reding <treding@nvidia.com>

fdtdec: Use fdt_setprop_u32() for fdtdec_set_phandle()

The fdt_setprop_u32() function does everything that we need, so we
really only use the function as a convenience wrapper, in which case it
can simply be a static inline function.

Signed-off-by: Thierry Reding <treding@nvidia.com>

fdtdec: Implement carveout support functions

The fdtdec_get_carveout() and fdtdec_set_carveout() function can be used
to read a carveout from a given node or add a carveout to a given node
using the standard device tree bindings (involving reserved-memory nodes
and the memory-region property).

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

fdtdec: Implement fdtdec_add_reserved_memory()

This function can be used to add subnodes in the /reserved-memory node.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

fdtdec: Implement fdtdec_set_phandle()

This function can be used to set a phandle for a given node.

Signed-off-by: Thierry Reding <treding@nvidia.com>

fdtdec: Add fdt_{addr, size}_unpack() helpers

These helpers can be used to unpack variables of type fdt_addr_t and
fdt_size_t into a pair of 32-bit variables. This is useful in cases
where such variables need to be written to properties (such as "reg")
of a device tree node where they need to be split into cells.

Signed-off-by: Thierry Reding <treding@nvidia.com>

fdtdec: Add cpu_to_fdt_{addr, size}() macros

These macros are useful for converting the endianness of variables of
type fdt_addr_t and fdt_size_t.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

lib: fdt: Split fdtdec_setup_memory_banksize()

Split fdtdec_setup_memory_banksize() into fdtdec_setup_memory_banksize_fdt(),
which allows the caller to pass custom blob into the function and the
original fdtdec_setup_memory_banksize(), which uses the gd->fdt_blob. This
is useful when configuring the DRAM properties from a FDT blob fragment
passed in by the firmware.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

lib: fdt: Split fdtdec_setup_mem_size_base()

Split fdtdec_setup_mem_size_base() into fdtdec_setup_mem_size_base_fdt(),
which allows the caller to pass custom blob into the function and the
original fdtdec_setup_mem_size_base(), which uses the gd->fdt_blob. This
is useful when configuring the DRAM properties from a FDT blob fragment
passed in by the firmware.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Merge branch 'master' of git://git.denx.de/u-boot-i2c

- DM I2C improvements

fdt: tegra: Drop COMPAT_AMS_AS3722

This is no-longer used. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>

fdt: samsung: Drop unused fdt_compat_id values

This enum still exists but we can shrink it a little based on recent
driver-model conversions with samsung. Update it to remove unused items.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>

fdt: Introduce fdtdec_get_alias_highest_id()

Find out the highest alias ID used for certain subsystem.
This call will be used for alocating IDs for i2c buses which are not
described in DT.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>

lib: fdtdec: Add function re-setup the fdt more effeciently

In some cases it may be useful to be able to change the fdt we have been
using and use another one instead. For example, the TI platforms uses an
EEPROM to store board information and, based on the type of board,
different dtbs are used by the SPL. When DM_I2C is used, a first dtb must
be used before the I2C is initialized and only then the final dtb can be
selected.
To speed up the process and reduce memory usage, introduce a new function
fdtdec_setup_best_match() that re-use the DTBs loaded in memory by
fdtdec_setup() to select the best match.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Heiko Schocher <hs@denx.de>

fdt: restore board_fdt_blob_setup() declaration

Commit 90c08fa038451d (fdt: Add device tree memory bindings) removed the
prototype declaration of board_fdt_blob_setup(), most likely by mistake.
This didn't break the build because the only file calling this function
(lib/fdtdec.c) provides a local weak definition. Restore the
declaration.

Cc: Michael Pratt <mpratt@chromium.org>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdt: Remove fdtdec_decode_region() function

This function is not used in U-Boot now. Remove it along with its 'memory'
version.

Signed-off-by: Simon Glass <sjg@chromium.org>

lib: fdtdec: Rename routine fdtdec_setup_memory_size()

This patch renames the routine fdtdec_setup_memory_size()
to fdtdec_setup_mem_size_base() as it now fills the
mem base as well along with size.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

board: arm: Add support for Broadcom BCM7445

Add support for loading U-Boot on the Broadcom 7445 SoC. This port
assumes Broadcom's BOLT bootloader is acting as the second stage
bootloader, and U-Boot is acting as the third stage bootloader, loaded
as an ELF program by BOLT.

Signed-off-by: Thomas Fitzsimmons <fitzsim@fitzsim.org>
Cc: Stefan Roese <sr@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>

fdt: Add device tree memory bindings

Support a default memory bank, specified in reg, as well as
board-specific memory banks in subtree board-id nodes.

This allows memory information to be provided in the device tree,
rather than hard-coded in, which will make it simpler to handle
similar devices with different memory banks, as the board-id values
or masks can be used to match devices.

Signed-off-by: Michael Pratt <mpratt@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>

fdt: Add another Altera Arria10 clock init compatible

The DT bindings for the Arria10 clock init have changed, add another
compatible to make them work with U-Boot until a proper clock driver
gets written.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>

lib: fdtdec: drop the old compatible about max77686

Drop the old compatible about max77686.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Lukasz Majewski <lukma@denx.de>

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>

libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h>

Thomas reported U-Boot failed to build host tools if libfdt-devel
package is installed because tools include libfdt headers from
/usr/include/ instead of using internal ones.

This commit moves the header code:
include/libfdt.h -> include/linux/libfdt.h
include/libfdt_env.h -> include/linux/libfdt_env.h

and replaces include directives:
#include <libfdt.h> -> #include <linux/libfdt.h>
#include <libfdt_env.h> -> #include <linux/libfdt_env.h>

Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

sandbox: Add 64-bit sandbox

To debug device tree issues involving 32- and 64-bit platforms, it is useful to
have a generic 64-bit platform available.

Add a version of the sandbox that uses 64-bit integers for its physical
addresses as well as a modified device tree.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
Added CONFIG_SYS_TEXT_BASE to configs/sandbox64_defconfig
Signed-off-by: Simon Glass <sjg@chromium.org>

fdtdec: allow board to provide fdt for CONFIG_OF_SEPARATE

Similar to CONFIG_OF_BOARD, but in this case the fdt is still built by
u-boot build. This allows the board to patch the fdt, etc.

In the specific case of dragonboard 410c, we pass the u-boot generated
fdt to the previous stage of bootloader (by embedding it in the
u-boot.img that is loaded by lk/aboot), which patches the fdt and passes
it back to u-boot.

Signed-off-by: Rob Clark <robdclark@gmail.com>
[trini: Update board_fdt_blob_setup #if check]
Signed-off-by: Tom Rini <trini@konsulko.com>

fdt: Add compatible strings for Arria 10

Add compatible strings for Intel Arria 10 SoCFPGA device.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>

dtoc: Add support for 32 or 64-bit addresses

When using 32-bit addresses dtoc works correctly. For 64-bit addresses it
does not since it ignores the #address-cells and #size-cells properties.

Update the tool to use fdt64_t as the element type for reg properties when
either the address or size is larger than one cell. Use the correct value
so that C code can obtain the information from the device tree easily.

Alos create a new type, fdt_val_t, which is defined to either fdt32_t or
fdt64_t depending on the word size of the machine. This type corresponds
to fdt_addr_t and fdt_size_t. Unfortunately we cannot just use those types
since they are defined to phys_addr_t and phys_size_t which use
'unsigned long' in the 32-bit case, rather than 'unsigned int'.

Add tests for the four combinations of address and size values (32/32,
64/64, 32/64, 64/32). Also update existing uses for rk3399 and rk3368
which now need to use the new fdt_val_t type.

Signed-off-by: Simon Glass <sjg@chromium.org>

Suggested-by: Heiko Stuebner <heiko@sntech.de>
Reported-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Kever Yang <kever.yang@rock-chips.com>

fdtdec: Drop old compatible values

These are not needed now since the drivers now use driver model. Drop
them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1
Tested-by: Stephen Warren <swarren@nvidia.com>

cros_ec: Convert to support live tree

Convert this driver to support the live device tree and remove the old
fdtdec support.

The keyboard is not yet converted.

Signed-off-by: Simon Glass <sjg@chromium.org>

dm: core: Add a place to put extra device-tree reading functions

Some functions deal with structured data rather than simple data types.
It makes sense to have these in their own file. For now this just has a
function to read a flashmap entry. Move the data types also.

Signed-off-by: Simon Glass <sjg@chromium.org>

edid: Add HDMI flag to timing info

Some DVI monitors don't show anything in HDMI mode since audio stream
confuses them. To solve this situation, this commit adds HDMI flag in
timing data and sets it accordingly during edid parsing.

First existence of extension block is checked. If it exists and it is
CEA861 extension, then data blocks are checked for presence of HDMI
vendor specific data block. If it is present, HDMI flag is set.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Simon Glass <sjg@chromium.org>

Allow boards to initialize the DT at runtime.

In some boards like the Raspberry Pi the initial bootloader will pass
a DT to the kernel. When using U-Boot as such kernel, the board code in
U-Boot should be able to provide U-Boot with this, already assembled
device tree blob.

This patch introduces a new config option CONFIG_OF_BOARD to use instead
of CONFIG_OF_EMBED or CONFIG_OF_SEPARATE which will initialize the DT
from a board-specific funtion instead of bundling one with U-Boot or as
a separated file. This allows boards like the Raspberry Pi to reuse the
device tree passed from the bootcode.bin and start.elf firmware
files, including the run-time selected device tree overlays.

Signed-off-by: Alex Deymo <deymo@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdt: Add compatible strings for Arria 10

Add compatible strings for Intel Arria 10 SoCFPGA device.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>

fdt: add memory bank decoding functions for board setup

Add two functions for use by board implementations to decode the memory
banks of the /memory node so as to populate the global data with
ram_size and board info for memory banks.

The fdtdec_setup_memory_size() function decodes the first memory bank
and sets up the gd->ram_size with the size of the memory bank. This
function should be called from the boards dram_init().

The fdtdec_setup_memory_banksize() function decode the memory banks
(up to the CONFIG_NR_DRAM_BANKS) and populates the base address and size
into the gd->bd->bi_dram array of banks. This function should be called
from the boards dram_init_banksize().

Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Michal Simek <monstr@monstr.eu>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

usb: uniphier: remove UniPhier xHCI driver and select DM_USB

This driver has not been converted to Driver Model, and it is an
obstacle to migrate other block device drivers. Remove it for now.

The UniPhier SoCs already use a DM-based EHCI driver, so now
ARCH_UNIPHIER can select DM_USB.

These two changes must be done atomically because removing the
legacy driver causes a build error.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marex@denx.de>

fdt: allow fdtdec_get_addr_size_*() to translate addresses

Some code may want to read reg values from DT, but from nodes that aren't
associated with DM devices, so using dev_get_addr_index() isn't
appropriate. In this case, fdtdec_get_addr_size_*() are the functions to
use. However, "translation" (via the chain of ranges properties in parent
nodes) may still be desirable. Add a function parameter to request that,
and implement it. Update all call sites to default to the original
behaviour.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Squashed in build fix from Stephen:
Signed-off-by: Simon Glass <sjg@chromium.org>

mtd: nand: Add the sunxi NAND controller driver

We already have an SPL driver for the sunxi NAND controller, now add
the normal/standard one.

The source has been copied from Linux 4.6 with a few changes to make
it work in u-boot.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>

sandbox: Find keyboard driver using driver model

The cros-ec keyboard is always a child of the cros-ec node. Rather than
searching the device tree, looking at the children. Remove the compat string
which is now unused.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Drop unused exynos compatible strings

A few drivers have moved to driver model, so we can drop these strings.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>

x86: fdt: Drop the unused compatible strings in fdtdec

We have drivers for several more devices now, so drop the strings which are
no-longer used.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

fdt: Drop some unused compatible strings

We have driver-model drivers for some of these now, so drop them.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

mmc: tegra: add basic Tegra186 support

Tegra186's MMC controller needs to be explicitly identified. Add another
compatible value for it.

Tegra186 will use an entirely different clock/reset control mechanism to
existing chips, and will use standard clock/reset APIs rather than the
existing Tegra-specific custom APIs. The driver support for that isn't
ready yet, so simply disable all clock/reset usage if compiling for
Tegra186. This must happen at compile time rather than run-time since the
custom APIs won't even be compiled in on Tegra186. In the long term, the
plan would be to convert the existing custom APIs to standard APIs and get
rid of the ifdefs completely.

The system's main eMMC will work without any clock/reset support, since
the firmware will have already initialized the controller in order to
load U-Boot. Hence the driver is useful even in this apparently crippled
state.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

Fix various typos, scattered over the code.

Spelling corrections for (among other things):

* environment
* override
* variable
* ftd (should be "fdt", for flattened device tree)
* embedded
* FTDI
* emulation
* controller

x86: dts: Drop memory SPD compatible string

This is not needed now that the memory controller driver has the SPD data
in its own node.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

x86: Drop all the old pin configuration code

We don't need this anymore - we can use device tree and the new pinconfig
driver instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

tegra: nyan-big: Move the LCD driver to driver model

Adjust the driver to use driver model. The SOR becomes a bridge device. We
use the normal simple_panel driver to handle the display itself. We also
need to enable some options such as regulators, PWMs and DM_VIDEO itself.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdt: introduce fdtdec_get_child_count

Introduce fdtdec_get_child_count for get the number of subnodes
of one parent node.

Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>

x86: Drop the irq router compatible string

We use driver model for this now, so we don't need this string.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

dm: video: sandbox: Convert sandbox to use driver model for video

Now that driver model support is available, convert sandbox over to use it.
We can remove a few of the special hooks that sandbox currently has.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>

Merge branch 'master' of git://git.denx.de/u-boot-x86

fdtdec: Add compatible string for Intel IvyBridge FSP

Use "intel,ivybridge-fsp" for Intel IvyBridge FSP compatible string.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>

dm: serial: Convert ns16550 driver to use driver model PCI API

Use the driver model version of the function to find the BAR. This updates
the fdtdec function, of which ns16550 is the only user.

The fdtdec_get_pci_bdf() function is dropped for several reasons:
- with driver model we should use 'struct udevice *' rather than passing the
device tree offset explicitly
- there are no other users in the tree
- the function parses for information which is already available in the PCI
device structure (specifically struct pci_child_platdata which is available
at dev_get_parent_platdata(dev)

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>

arm: socfpga: Allow DWC2 UDC probing from OF

The USB gadget framework does not support DM yet, so add this bit
to let DWC2 UDC probe from OF on platforms which support it.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Lukasz Majewski <l.majewski@majess.pl>
Cc: Lukasz Majewski <l.majewski@samsung.com>

dm: tegra: pci: Convert tegra boards to driver model for PCI

Adjust the Tegra PCI driver to support driver model and move all boards over
at the same time. This can make use of some generic driver model code, such
as the range-decoding logic.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>

dm: tegra: Convert keyboard driver to driver model

Adjust the tegra keyboard driver to support driver model, using the new
uclass. Make this the default for all Tegra boards so that those that use
a keyboard will build correctly with this driver.

Signed-off-by: Simon Glass <sjg@chromium.org>

pci: tegra: add/enable support for Tegra210

This needs a separate compatible value from Tegra124 since the new HW
version has bugs that would prevent a driver for previous HW versions
from operating at all.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

Merge git://git.denx.de/u-boot-socfpga

lib, fdt: Adding fdtdec_get_uint function

Adding fdtdec_get_uint function which is the
unsigned version for fdtdec_get_int

Signed-off-by: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Dinh Nguyen <dinh.linux@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Vikas Manocha <vikas.manocha@st.com>
Cc: Jagannadh Teki <jteki@openedev.com>
Cc: Pavel Machek <pavel@denx.de>
Cc: Heiko Schocher <hs@denx.de>

fdt: Add a function to look up a /chosen property

It is sometimes useful to find a property in the chosen node. Add a function
for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

fdt: add new fdt address parsing functions

fdtdec_get_addr_size() hard-codes the number of cells used to represent
an address or size in DT. This is incorrect in many cases depending on
the DT binding for a particular node or property (e.g. it is incorrect
for the "reg" property). In most cases, DT parsing code must use the
properties #address-cells and #size-cells to parse addres properties.

This change splits up the implementation of fdtdec_get_addr_size() so
that the core logic can be used for both hard-coded and non-hard-coded
cases. Various wrapper functions are implemented that support cases
where hard-coded cell counts should or should not be used, and where
the client does and doesn't know the parent node ID that contains the
properties #address-cells and #size-cells.

dev_get_addr() is updated to use the new functions.

Core functionality in fdtdec_get_addr_size_fixed() is widely tested via
fdtdec_get_addr_size(). I tested fdtdec_get_addr_size_auto_noparent() and
dev_get_addr() by manually modifying the Tegra I2C driver to invoke them.

Much of the core implementation of fdtdec_get_addr_size_fixed(),
fdtdec_get_addr_size_auto_parent(), and
fdtdec_get_addr_size_auto_noparent() comes from Thierry Reding's
previous commit "fdt: Fix fdtdec_get_addr_size() for 64-bit".

Based-on-work-by: Thierry Reding <treding@nvidia.com>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Michal Suchanek <hramrach@gmail.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Dropped #define DEBUG at the top of fdtdec.c:
Signed-off-by: Simon Glass <sjg@chromium.org>

mmc: dw_mmc: Probe the MMC from OF

Rework the driver to probe the MMC controller from Device Tree
and make it mandatory. There is no longer support for probing
from the ancient qts-generated header files.

This patch now also removes previous temporary workaround.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
Cc: Tom Rini <trini@konsulko.com>

dm: tpm: Convert I2C driver to driver model

Convert the tpm_tis_i2c driver to use driver model and update boards which
use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Christophe Ricard<christophe-h.ricard@st.com>
Reviewed-by: Heiko Schocher <hs@denx.de>

of: clean up OF_CONTROL ifdef conditionals

We have flipped CONFIG_SPL_DISABLE_OF_CONTROL. We have cleansing
devices, $(SPL_) and CONFIG_IS_ENABLED(), so we are ready to clear
away the ugly logic in include/fdtdec.h:

#ifdef CONFIG_OF_CONTROL
# if defined(CONFIG_SPL_BUILD) && !defined(SPL_OF_CONTROL)
# define OF_CONTROL 0
# else
# define OF_CONTROL 1
# endif
#else
# define OF_CONTROL 0
#endif

Now CONFIG_IS_ENABLED(OF_CONTROL) is the substitute. It refers to
CONFIG_OF_CONTROL for U-boot proper and CONFIG_SPL_OF_CONTROL for
SPL.

Also, we no longer have to cancel CONFIG_OF_CONTROL in
include/config_uncmd_spl.h and scripts/Makefile.spl.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

of: flip CONFIG_SPL_DISABLE_OF_CONTROL into CONFIG_SPL_OF_CONTROL

As we discussed a couple of times, negative CONFIG options make our
life difficult; CONFIG_SYS_NO_FLASH, CONFIG_SYS_DCACHE_OFF, ...
and here is another one.

Now, there are three boards enabling OF_CONTROL on SPL:
- socfpga_arria5_defconfig
- socfpga_cyclone5_defconfig
- socfpga_socrates_defconfig

This commit adds CONFIG_SPL_OF_CONTROL for them and deletes
CONFIG_SPL_DISABLE_OF_CONTROL from the other boards to invert
the logic.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdtdec: fix OF_CONTROL switch

There is no case where defined(SPL_DISABLE_OF_CONTROL) is true.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

x86: baytrail: Configure FSP UPD from device tree

Allow for configuration of FSP UPD from the device tree which will
override any settings which the FSP was built with itself.

Modify the MinnowMax and BayleyBay boards to transfer sensible UPD
settings from the Intel FSPv4 Gold release to the respective dts files,
with the condition that the memory-down parameters for MinnowMax are
also used.

Signed-off-by: Andrew Bradford <andrew.bradford@kodakalaris.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Removed fsp,mrc-debug-msg and fsp,enable-xhci for minnowmax, bayleybay
Fixed lines >80col
Signed-off-by: Simon Glass <sjg@chromium.org>

arm: socfpga: misc: Reset ethernet from OF

Reset the GMAC ethernets based on the "resets" OF node instead of ad-hoc
hardcoded values in the U-Boot code. Since we don't have a proper reset
framework in place yet, we have to do this slightly ad-hoc parsing of the
OF tree instead.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>

lib/fdtdec: Fix fdt_addr_t and fdt_size_t typedef

fdt_addr_t is a physical address. It can be either 64-bit or 32-bit,
depending on the architecture. It should be phys_addr_t instead of
u64 or u32. Similarly, fdt_size_t is changed to phys_size_t.

Signed-off-by: York Sun <yorksun@freescale.com>
CC: Simon Glass <sjg@chromium.org>

dts: Drop unused compatible ID for the NXP video bridge

This has moved to driver model so we can drop the fdtdec support.

Signed-off-by: Simon Glass <sjg@chromium.org>

video: Remove the old parade driver

We have a new one which uses driver model and device tree configuration.
Remove the old one.

Signed-off-by: Simon Glass <sjg@chromium.org>

power: Remove old TPS65090 drivers

Remove the old drivers (both the normal one and the cros_ec one) now that
we have new drivers that use driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>

ARM: Tegra210: Add support to common Tegra source/config files

Derived from Tegra124, modified as appropriate during T210
board bringup. Cleaned up debug statements to conserve
string space, too. This also adds misc 64-bit changes
from Thierry Reding/Stephen Warren.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

dm: usb: tegra: Drop legacy USB code

Drop the code that doesn't use driver model for USB.

Signed-off-by: Simon Glass <sjg@chromium.org>

sandbox: Move CONFIG_SANDBOX_SERIAL to Kconfig

Move this over to Kconfig and tidy up.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: gpio: add pinctrl support from the device tree

Every pin can be configured now from the device tree. A dt-bindings
has been added to describe the different property available.

Change-Id: I1668886062655f83700d0e7bbbe3ad09b19ee975
Signed-off-by: Gabriel Huau <contact@huau-gabriel.fr>
Acked-by: Simon Glass <sjg@chromium.org>

x86: Refactor PIRQ routing support

PIRQ routing is pretty much common in Intel chipset. It has several
PIRQ links (normally 8) and corresponding registers (either in PCI
configuration space or memory-mapped IBASE) to configure the legacy
8259 IRQ vector mapping. Refactor current Queensbay PIRQ routing
support using device tree and move it to a common place, so that we
can easily add PIRQ routing support on a new platform.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>

tegra: video: Support serial output resource (SOR) on tegra124

The SOR is required for talking to eDP LCD panels. Add a driver for this
which will be used by the DisplayPort driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdt: Add binding decode function for display-timings

This is useful for display parameters. Add a simple decode function to read
from this device tree node.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

dm: usb: exynos: Drop legacy USB code

Drop the code that doesn't use driver model for USB.

Signed-off-by: Simon Glass <sjg@chromium.org>

dm: core: Select device tree control correctly for SPL

Some boards will not use device tree for SPL even with driver model. Add
the logic to support this.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Rename setup_fdt() and make it prepare also

There is little reason to split these two functions. Bring them together
which simplifies the init sequence.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: sandbox: Move setup code from board_f to fdtdec

We want to be able to set up the device tree in SPL, so move this code
to a common place.

Signed-off-by: Simon Glass <sjg@chromium.org>

cros_ec: exynos: Match up device tree with kernel version

The U-Boot device trees are slightly different in a few places. Adjust them
to remove most of the differences. Note that U-Boot does not support the
concept of interrupts as distinct from GPIOs, so this difference remains.

For sandbox, use the same keyboard file as for ARM boards and drop the
host emulation bus which seems redundant.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Drop LPC compatible string in fdtdec

This is not needed now that we have moved chromebook_link and cros_ec to
driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: cros_ec: Drop compatible string in fdtdec

This is not needed now that we have moved to driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: chromebook_link: dts: Add PCH and LPC devices

The PCH (Platform Controller Hub) is on the PCI bus, so show it as such.
The LPC (Low Pin Count) and SPI bus are inside the PCH, so put these in the
right place also.

Rename the compatible strings to be more descriptive since this board is the
only user. Once we are using driver model fully on x86, these will be
dropped.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Tighten up error handling in fdtdec_get_pci_addr()

This function returns -ENOENT when the property is missing (which the caller
might forgive) and also when the property is present but incorrectly
formatted (which many callers would like to report).

Update the error return value to allow these different situations to be
distinguished.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

fdt: Export fdtdec_get_number() for general use

This function is missing a prototype but is more widey useful. Add it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

fdtdec: Improve fdtdec_get_pci_bdf() documentation

Add the description that how the compatible property is involved in
the fdtdec_get_pci_bdf() documentation.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>

ARM: UniPhier: adjust device trees for business transfer

Panasonic's System LSI products, UniPhier SoC family, have been
transferred to Socionext Inc.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

usb: UniPhier: add UniPhier on-chip xHCI host driver support

Support xHCI host driver used on Panasonic UniPhier platform.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Marek Vasut <marex@denx.de>

fdtdec: Add compatible id and string for Intel Quark MRC

Add COMPAT_INTEL_QRK_MRC and "intel,quark-mrc" so that fdtdec can
decode Intel Quark MRC node.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>

dm: exynos: Drop unused COMPAT features for SPI

This has moved to driver model so we don't need the fdtdec support.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Minkyu Kang <mk7.kang@samsung.com>

dm: tegra: Drop unused COMPAT features for I2C, SPI

These have moved to driver model so we don't need the fdtdec support.

Signed-off-by: Simon Glass <sjg@chromium.org>

dm: fdt: Remove the old GPIO functions

Now that we support device tree GPIO bindings directly in the driver model
GPIO uclass we can remove these functions.

Signed-off-by: Simon Glass <sjg@chromium.org>

dm: fdt: Add a function to decode phandles with arguments

For GPIOs and other functions we want to look up a phandle and then decode
a list of arguments for that phandle. Each phandle can have a different
number of arguments, specified by a property in the target node. This is
the "#gpio-cells" property for GPIOs.

Add a function to provide this feature, taken modified from Linux 3.18.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: dts: Add compatible string for Intel ICH9 SPI controller

Add this to the enum so that we can use the various fdtdec functions. A
later commit will move this driver to driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Add several apis to decode pci device node

This commit adds several APIs to decode PCI device node according to
the Open Firmware PCI bus bindings, including:
- fdtdec_get_pci_addr() for encoded pci address
- fdtdec_get_pci_vendev() for vendor id and device id
- fdtdec_get_pci_bdf() for pci device bdf triplet
- fdtdec_get_pci_bar32() for pci device register bar

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
(Include <pci.h> in fdtdec.h and adjust tegra to fix build error)

pci: tegra: Add Tegra PCIe driver

Add support for the PCIe controller found on some generations of Tegra.
Tegra20 has 2 root ports with a total of 4 lanes, Tegra30 has 3 root
ports with a total of 6 lanes and Tegra124 has 2 root ports with a total
of 5 lanes.

This is based on the Linux kernel driver, originally submitted upstream
by Mike Rapoport.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

ARM: tegra: Implement XUSB pad controller

This controller was introduced on Tegra114 to handle XUSB pads. On
Tegra124 it is also used for PCIe and SATA pin muxing and PHY control.
Only the Tegra124 PCIe and SATA functionality is currently implemented,
with weak symbols on Tegra114.

Tegra20 and Tegra30 also provide weak symbols for these functions so
that drivers can use the same API irrespective of which SoC they're
being built for.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

power: Add AMS AS3722 PMIC support

The AS3722 provides a number of DC/DC converters and LDOs as well as 8
GPIOs.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

Merge git://git.denx.de/u-boot-fdt

Merge git://git.denx.de/u-boot-x86

fdt: remove fdtdec_get_alias_node() function

The fdt_path_offset() checks an alias too.

fdtdec_get_alias_node(blob, "foo") is equivalent to
fdt_path_offset(blob, "foo").

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>

Merge git://git.denx.de/u-boot-fdt

x86: Add initial video device init for Intel GMA

Intel's Graphics Media Accelerator (GMA) is a generic name for a wide range
of video devices. Add code to set up the hardware on ivybridge. Part of the
init happens in native code, part of it happens in a 16-bit option ROM for
those nostalgic for the 1970s.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: Add init for model 206AX CPU

Add the setup code for the CPU so that it can be used at full speed.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: ivybridge: Add SATA init

Add code to set up the SATA interfaces on boot.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: ivybridge: Implement SDRAM init

Implement SDRAM init using the Memory Reference Code (mrc.bin) provided in
the board directory and the SDRAM SPD information in the device tree. This
also needs the Intel Management Engine (me.bin) to work. Binary blobs
everywhere: so far we have MRC, ME and microcode.

SDRAM init works by setting up various parameters and calling the MRC. This
in turn does some sort of magic to work out how much memory there is and
the timing parameters to use. It also sets up the DRAM controllers. When
the MRC returns, we use the information it provides to map out the
available memory in U-Boot.

U-Boot normally moves itself to the top of RAM. On x86 the RAM is not
generally contiguous, and anyway some RAM may be above 4GB which doesn't
work in 32-bit mode. So we relocate to the top of the largest block of
RAM we can find below 4GB. Memory above 4GB is accessible with special
functions (see physmem).

It would be possible to build U-Boot in 64-bit mode but this wouldn't
necessarily provide any more memory, since the largest block is often below
4GB. Anyway U-Boot doesn't need huge amounts of memory - even a very large
ramdisk seldom exceeds 100-200MB. U-Boot has support for booting 64-bit
kernels directly so this does not pose a limitation in that area. Also there
are probably parts of U-Boot that will not work correctly in 64-bit mode.
The MRC is one.

There is some work remaining in this area. Since memory init is very slow
(over 500ms) it is possible to save the parameters in SPI flash to speed it
up next time. Suspend/resume support is not fully implemented, or at least
it is not efficient.

With this patch, link boots to a prompt.

Signed-off-by: Simon Glass <sjg@chromium.org>

x86: ivybridge: Perform Intel microcode update on boot

Microcode updates are stored in the device tree. Work through these and
apply any that are needed.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Add a function to decode a variable-sized u32 array

Sometimes an array can be of variable size up to a maximum. Add a helper
function to decode this.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Add a function to decode a named memory region

Permit decoding of a named memory region from the device tree. This allows
easy run-time configuration of the address of on-chip SRAM, SDRAM, etc.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>

fdt: Enhance flashmap function to deal with region properties

Flash regions can optionally be compressed or hashed. Add the ability to
read this information from the flashmap.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Tom Rini <trini@ti.com>

fdt: Use the correct return types for fdtdec_decode_region()

Use the correct FDT data types for this function. Also add more debugging.

Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>

Merge git://git.denx.de/u-boot-x86

x86: dts: Add device tree compatible string for Intel IPC

Add this to the table so that it can be recognised.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Add a function to return PCI BDF triplet

The fdtdec_pci_get_bdf() function returns the bus, device, function
triplet of a PCI device by parsing the "reg" property according to the
PCI device tree binding.

Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

fdt: Add resource parsing functions

Add the fdt_get_resource() and fdt_get_named_resource() functions which
can be used to parse resources (memory regions) from an FDT. A helper to
compute the size of a region is also provided.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>

Merge branch 'master' of git://git.denx.de/u-boot-dm

dm: fdt: Add a function to look up a chosen node

Within /chosen we may have a node which points to another node, similar
to how /aliases works. Add a helper function to do this lookup.

Signed-off-by: Simon Glass <sjg@chromium.org>

video: Add driver for Parade PS8625 dP to LVDS bridge

The initialization table comes from the "Illustration of I2C command
for initialing PS8625" document supplied by Parade.

Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

video: exynos_fimd: Add framework to disable FIMD sysmmu

On Exynos5420 and newer versions, the FIMD sysmmus are in
"on state" by default.
We have to disable them in order to make FIMD DMA work.
This patch adds the required framework to exynos_fimd driver,
and disables FIMD sysmmu on Exynos5420.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

fdt: Add a function to get the node offset of an alias

This simple function returns the node offset of a named alias.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Add a function to get the alias sequence of a node

Aliases are used to provide U-Boot's numbering of devices, such as:

aliases {
spi0 = "/spi@12330000";
}

spi@12330000 {
...
}

This tells us that the SPI controller at 12330000 is considered to be the
first SPI controller (SPI 0). So we have a numbering for the SPI node.

Add a function that returns the numbering for a node assume that it exists
in the list of aliases.

Signed-off-by: Simon Glass <sjg@chromium.org>

exynos: Enable the LCD backlight for snow

The backlight uses FETs on the TPS65090. Enable this so that the display
is visible.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

power: Add support for TPS65090 PMU chip.

This adds driver support for the TPS65090 PMU. Support includes
hooking into the pmic infrastructure so that the pmic commands
can be used on the console. The TPS65090 supports the following
functionality:

- fet enable/disable/querying
- getting and setting of charge state

Even though it is connected to the pmic infrastructure it does
not hook into the pmic charging charging infrastructure.

The device tree binding is from Linux, but only a small subset of
functionality is supported.

Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org>
Signed-off-by: Hatim Ali <hatim.rv@samsung.com>
Signed-off-by: Katie Roberts-Hoffman <katierh@chromium.org>
Signed-off-by: Rong Chang <rongchang@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

ARM: dts: exynos: rename from EXYNOS5_DWMMC to EXYNOS_DWMMC

Exynos serise can be supported the dw-mmc controller.
So, it's good that used the general prefix as "_EXYNOS_DWMMC".

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

Merge branch 'u-boot/master' into 'u-boot-arm/master'

Trivial merge conflict, needed to manually remove
local_info as per commit 41364f0f.

Conflicts:
board/samsung/common/board.c

sandbox: Add LCD driver

Add a simple LCD driver which uses SDL to display the image. We update the
image regularly, while still providing for reasonable performance.

Adjust the common lcd code to support sandbox.

For command-line runs we do not want the LCD to be displayed, so add a
--show_lcd option to enable it.

Tested-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

cros_ec: sandbox: Add Chrome OS EC emulation

Add a simple emulation of the Chrome OS EC for sandbox, so that it can
perform various EC tasks such as keyboard handling.

Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

cros_ec: Add a function for reading a flash map entry

A flash map describes the layout of flash memory in terms of offsets and
sizes for each region. Add a function to read a flash map entry from the
device tree.

Reviewed-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

drivers:mmc:sdhci: enable support for DT

This patch enables support for device tree for sdhci driver.
Non DT case is still supported.

Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

video:mipidsim:fdt: Add DT support for mipi dsim driver

This patch enables parsing mipi data from device tree.
Non device tree case is still supported.

Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

mmc: tegra: support Tegra124

Tegra124's MMC controller is very similar to earlier SoC generations,
and can be supported by the same driver.

However, there are some non-backwards-compatible HW differences, and
hence a new DT compatible value must be used to describe the HW. This
patch updates the driver to support that new compatible value.

That said, the HW differences are only relevant when enabling certain
high-performance transfer modes. Since the driver is currently very
simple and doesn't enable those modes, we don't actually need to address
any of these HW differences in the code yet, hence the simple nature of
this patch.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

exynos5: dts: Add COMPAT string data for USB 3.0 PHY and XHCI

Adding required compatible string for xHCI host controller
as well as USB 3.0 PHY to enable dt support for usb 3.0 on
exynos5.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Cc: Julius Werner <jwerner@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Dan Murphy <dmurphy@ti.com>
Cc: Marek Vasut <marex@denx.de>

Merge branch 'master' of git://git.denx.de/u-boot-i2c

The sandburst-specific i2c drivers have been deleted, conflict was just
over the SPDX conversion.

Conflicts:
board/sandburst/common/ppc440gx_i2c.c
board/sandburst/common/ppc440gx_i2c.h

Signed-off-by: Tom Rini <trini@ti.com>

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>

fdtdec: Add compatible string for High speed i2c

Adds a new COMPAT string exynos5-hsi2c for high speed i2c controller
available on exynos5 SoCs from Samsung.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>

Merge branch 'master' of git://git.denx.de/u-boot-arm

Fix a trivial conflict in arch/arm/dts/exynos5250.dtsi about gpio and
serial.

Conflicts:
arch/arm/dts/exynos5250.dtsi

Signed-off-by: Tom Rini <trini@ti.com>

ARM: Tegra: USB: EHCI: Add support for Tegra30/Tegra114

Tegra30 and Tegra114 are compatible except PLL parameters.

Tested on Tegra30 Cardhu, and Tegra114 Dalmore
platforms. All works well.

Signed-off-by: Jim Lin <jilin@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

cros: adds cros_ec keyboard driver

This patch adds the driver for keyboard that's controlled by ChromeOS EC.

Signed-off-by: Randall Spangler <rspangler@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Hung-ying Tyan <tyanh@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>

cros: add cros_ec driver

This patch adds the cros_ec driver that implements the protocol for
communicating with Google's ChromeOS embedded controller.

Signed-off-by: Bernie Thompson <bhthompson@chromium.org>
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Signed-off-by: Hung-ying Tyan <tyanh@chromium.org>
Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org>
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>

EXYNOS5: FDT: Add compatible strings for Serial

Add required compatible information for s5p serial driver

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

Merge branch 'master' of git://git.denx.de/u-boot-arm

FDT: Add compatible string for DWMMC

Add required compatible information for DWMMC driver.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Amar <amarendra.xt@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

tpm: Add support for new Infineon I2C TPM (SLB 9645 TT 1.2 I2C)

Add support for Infineon's new SLB 9645 TT 1.2 I2C TPMs,
which supports clockstretching, combined reads and a bus speed of
up to 400khz. The device also has a new device id.

This is based on the kernel patch provided by Infineon :
https://gerrit.chromium.org/gerrit/42332

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>

Merge branch 'master' of git://git.denx.de/u-boot-arm

tpm: Add Infineon slb9635_i2c TPM driver

Add a driver for the I2C TPM from Infineon.

Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Rong Chang <rongchang@chromium.org>
Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master'

Merge branch 'u-boot/master' into 'u-boot-arm/master'

Conflicts:
drivers/spi/tegra20_sflash.c
include/fdtdec.h
lib/fdtdec.c

EXYNOS5: FDT: Add compatible strings for FIMD

Add required compatible information for FIMD.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

EXYNOS: FDT: Add compatible strings for FIMD

Add required compatible information for FIMD.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

Merge branch 'u-boot-tegra/master' into 'u-boot-arm/master'

Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master'

tegra114: fdt: add compatible string for tegra114 SPI ctrl

Add "nvidia,tegra114-spi" to represent t114 SPI controller hardware.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>

sf: Enable FDT-based configuration and memory mapping

Enable device tree control of SPI flash, and use this to implement
memory-mapped SPI flash, which is supported on Intel chips.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Add fdtdec_get_addr_size() to read reg properties

It is common to have a "reg = <address size>" property in the FDT.
Add a function to handle this, similar to the existing
fdtdec_get_addr();

Signed-off-by: Simon Glass <sjg@chromium.org>

Tegra30: mmc: Add Tegra30 SDMMC compatible entry to fdtdec & driver

Tegra30 SD/MMC controller differs enough from Tegra20 that it
needs its own entry in the compat_names/compat_id tables and in
the Tegra MMC driver.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>

Tegra: MMC: Add DT support to MMC driver for all T20 boards

tegra_mmc_init() now parses the DT info for bus width, WP/CD GPIOs, etc.
Tested on Seaboard, fully functional.

Tamonten boards (medcom-wide, plutux, and tec) use a different/new
dtsi file w/common settings.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>

Tegra: I2C: Add T114 clock support to tegra_i2c driver

T114 has a slightly different I2C clock, with a new (extra) divisor
in standard/fast mode and HS mode. Tested on my Dalmore, and the I2C
clock is 100KHz +/- 3Hz on my Saleae Logic analyzer.

Added a new entry in compat_names for T114 I2C since it differs
from the previous Tegra SoCs. A flag is set when T114 I2C HW is
found so new features like the extra clock divisor can be used.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>

Exynos5: FDT: Add TMU device node values

Fdt entry for Exynos TMU driver specific pre-defined values used for
calibration of current temperature and defining threshold values.

Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

EXYNOS5: FDT: Add compatible strings for MAX98095

Add required compatible information for MAX98095 codec

Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

tegra: add SPI SLINK driver

Add driver for tegra SPI "SLINK" style driver. This controller is
similar to the tegra20 SPI "SFLASH" controller. The difference is
that the SLINK controller is a genernal purpose SPI controller and the
SFLASH controller is special purpose and can only talk to FLASH
devices. In addition there are potentially many instances of an SLINK
controller on tegra and only a single instance of SFLASH. Tegra20 is
currently ths only version of tegra that instantiates an SFLASH
controller.

This driver supports basic PIO mode of operation and is configurable
(CONFIG_OF_CONTROL) to be driven off devicetree bindings. Up to 4
devices per controller may be attached, although typically only a
single chip select line is exposed from tegra per controller so in
reality this is usually limited to 1.

To enable this driver, use CONFIG_TEGRA_SLINK

Signed-off-by: Allen Martin <amartin@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

tegra: spi: add fdt support to tegra SPI SFLASH driver

Add support for configuring tegra SPI driver from devicetree.
Support is keyed off CONFIG_OF_CONTROL. Add entry in seaboard dts
file for spi controller to describe seaboard spi.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

EXYNOS5: FDT: Add compatible strings for PMIC

Add required compatible information for PMIC

Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

EXYNOS5: FDT: Add compatible strings for USB

Add required compatible information for USB

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

EXYNOS5: FDT: Add compatible strings for SPI

Add required compatible information for SPI driver.

Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

EXYNOS5: FDT: Add compatible strings for sound

Add required compatible information for sound driver.

Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

FDT: Add compatible string for I2C

Add required compatible information for I2C driver.

Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

fdt: exynos5: Add DT node definition for SROM and SMSC9215

Add the compatibility string and constant for the ethernet driver
so the device tree parsing code can recognize it.

Signed-off-by: Hatim Ali <hatim.rv@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

Merge branch 'master' of git://git.denx.de/u-boot into resolve

Conflicts:
README
board/samsung/universal_c210/universal.c
drivers/misc/Makefile
drivers/power/power_fsl.c
include/configs/mx35pdk.h
include/configs/mx53loco.h
include/configs/seaboard.h

tegra: Add SOC support for display/lcd

Add support for the LCD peripheral at the Tegra2 SOC level. A separate
LCD driver will use this functionality to configure the display.

Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com>
Mayuresh Kulkarni:
- changes to remove bitfields and clean up for submission

Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass:
- simplify code, move clock control into here, clean-up
Signed-off-by: Tom Warren <twarren@nvidia.com>

tegra: Add support for PWM

The pulse width/frequency modulation peripheral supports generating
a repeating pulse. It is useful for controlling LCD brightness.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdt: Add polarity-aware gpio functions to fdtdec

Add get and set gpio functions to fdtdec that take into account the
polarity field in fdtdec_gpio_state.flags.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Add fdtdec_get_uint64 to decode a 64-bit value from a property

It decodes a 64-bit value from a property that is at least 8 bytes long.

Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Add function to read boolean property

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
Commit-Ready: Gabe Black <gabeblack@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Export fdtdec_lookup() and fix the name

The name of this function is not consistent, so fix it, and export
the function for external use.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Add function for decoding multiple gpios globally available

Samsung's SDHCI bindings require multiple gpios to be parsed and
configured at a time. Export the already available fdtdec_decode_gpios
for this purpose.

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Commit-Ready: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Add fdtdec_decode_region() to decode memory region

A memory region has a start and a size and is often specified in
a node by a 'reg' property. Add a function to decode this information
from the fdt.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Add function to get a config string from device tree

Add a function to look up a configuration string such as board name
and returns its value. We look in the "/config" node for this.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Add function to get config int from device tree

Add a function to look up a configuration item such as machine id
and return its value.

Note: The code has been taken as is from the Chromium u-boot development
tree and needs Simon Glass' sign-off.

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Simon Glass <sjg@chromium.org>

Merge branch 'agust@denx.de' of git://git.denx.de/u-boot-staging

fdt: Add header guard to fdtdec.h

This makes it easier to include this header from other headers.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>

tegra: nand: Add Tegra NAND driver

A device tree is used to configure the NAND, including memory
timings and block/pages sizes.

If this node is not present or is disabled, then NAND will not
be initialized.

Signed-off-by: Jim Lin <jilin@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

tegra20: rename tegra2 -> tegra20

This is make naming consistent with the kernel and devicetree and in
preparation of pulling out the common tegra20 code.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>

tegra: Add tegra keyboard driver

Add support for internal matrix keyboard controller for Nvidia Tegra
platforms. This driver uses the fdt decode function to obtain its key
codes.

Support for the Ctrl modifier is provided. The left and right ctrl keys are
dealt with in the same way.

This uses the new keyboard input library (drivers/input/input.c) to decode
keys and handle most of the common input logic. The new key matrix library
is also used to decode (row, column) key positions into key codes.

The intent is to make this driver purely about dealing with the hardware.

Key detection before the driver is loaded is supported. This key will be
picked up when the keyboard driver is initialized.

Modified by Bernie Thompson <bhthompson@chromium.org> and
Simon Glass <sjg@chromium.org> for device tree, input layer, key matrix
and various other things.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdt: Add fdtdec functions to read byte array

Sometimes we don't need a full cell for each value. This provides
a simple function to read a byte array, both with and without
copying it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

tegra: Add EMC support for optimal memory timings

Add support for setting up the memory controller parameters. Boards
can set up an appropriate table in the device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdt: Add function to return next compatible subnode

We need to iterate through subnodes of a parent, looking only at
compatible nodes. Add a utility function to do this for us.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdt: Add function to locate an array in the device tree

fdtdec_locate_array() locates an integer array but does not copy it. This
saves the caller having to allocated wasted space.

Access to array elements should be through the fdt32_to_cpu() macro.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

tegra: i2c: Add I2C driver

Add basic i2c driver for Tegra2 with 8- and 16-bit address support.
The driver requires CONFIG_OF_CONTROL to obtain its configuration
from the device tree.

(Simon Glass: sjg@chromium.org modified for upstream)

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdt: Add function to allow aliases to refer to multiple nodes

Some devices can deal with multiple compatible properties. The devices
need to know which nodes to bind to which features. For example an
I2C driver which supports two different controller types will want to
know which type it is dealing with in each case.

The new fdtdec_add_aliases_for_id() function deals with this by allowing
the driver to search for additional compatible nodes for a different ID.
It can then detect the new ones and perform appropriate processing.

Another option considered was to return a tuple (node offset, compat id)
and have the function be passed a list of compatible IDs. This is more
overhead for the common case though. We may add such a function later if
more drivers in U-Boot require it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdt: Avoid early panic() when there is no FDT present

CONFIG_OF_CONTROL requires a valid device tree. However, we cannot call
panic() before the console is set up since the message does not appear,
and we get a silent failure.

Remove the panic from fdtdec_check_fdt() and provide a new function to
prepare the fdt for use. This will be called after the console is ready.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

tegra: usb: Add support for Tegra USB peripheral

This adds basic support for the Tegra2 USB controller. Board files should
call board_usb_init() to set things up.

Configuration is performed through the FDT, with aliases used to set the
order of the ports, like this fragment:

aliases {
/* This defines the order of our USB ports */
usb0 = "/usb@0xc5008000";
usb1 = "/usb@0xc5000000";
};

drivers/usb/host files ONLY: Acked-by: Remy Bohmer <linux@bohmer.net>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdt: Add basic support for decoding GPIO definitions

This adds some support into fdtdec for reading GPIO definitions from
the fdt. We permit up to FDT_GPIO_MAX GPIOs in the system. Each GPIO
is of the form:

gpio-function-name = <phandle gpio_num flags>;

where:

phandle is a pointer to the GPIO node
gpio_num is the number of the GPIO (0 to 223)
flags is a flag, as follows:

bit meaning
0 0=polarity normal, 1=active low (inverted)

An example is:

enable-propounder-gpios = <&gpio 43 0>;

which means that GPIO 43 is used to enable the propounder (setting the
GPIO high), or that you can detect that the propounder is enabled by
checking if the GPIO is high (the fdt does not indicate input/output).

Two main functions are provided:

fdtdec_decode_gpio() reads a GPIO property from an fdt node and decodes it
into a structure.

fdtdec_setup_gpio() sets up the GPIO by calling gpio_request for you.

Both functions can cope with the property being missing, which is taken to
mean that that GPIO function is not available or is not needed.

[For reference, from Stephen Warren <swarren@nvidia.com>. It may be that
we add this extra complexity later if needed:

The correct way to parse such a GPIO property in general is:

* Read the first cell.
* Find the node referenced by the phandle (the controller).
* Ensure property gpio-controller is present in the controller node.
* Read property #gpio-cells from the controller node.
* Extract #gpio-cells from the original property.
* Keep processing more cells from the original property; there may be
multiple GPIOs listed.

According to the binding documentation in the Linux kernel, Samsung
Exynos4 doesn't use this format, and while all other chips do have a
flags cell, about 50% of the controllers indicate the cell is unused.
]

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdt: Add functions to access phandles, arrays and bools

Add a function to look up a property which is a phandle in a node, and
another to read a fixed-length integer array from an fdt property.
Also add a function to read boolean properties, although there is no
actual boolean type in U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdt: Tidy up a few fdtdec problems

This fixes five trivial issues in fdtdec.c:
1. fdtdec_get_is_enabled() doesn't really need a default value
2. The fdt must be word-aligned, since otherwise it will fail on ARM
3. The compat_names[] array is missing its first element. This is needed
only because the first fdt_compat_id is defined to be invalid.
4. Added a header prototype for fdtdec_next_compatible()
5. Change fdtdec_next_alias() to only increment its 'upto' parameter
on success, to make the display error messages in the caller easier.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdt: Add fdtdec_find_aliases() to deal with alias nodes

Stephen Warren pointed out that we should use nodes whether or not they
have an alias in the /aliases section. The aliases section specifies the
order so far as it can, but is not essential. Operating without alisses
is useful when the enumerated order of nodes does not matter (admittedly
rare in U-Boot).

This is considerably more complex, and it is important to keep this
complexity out of driver code. This patch creates a function
fdtdec_find_aliases() which returns an ordered list of node offsets
for a particular compatible ID, taking account of alias nodes.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdt: add decode helper library

This library provides useful functions to drivers which want to use
the fdt to control their operation. Functions are provided to:

- look up and enumerate a device type (for example assigning i2c bus 0,
i2c bus 1, etc.)
- decode basic types from the fdt, like addresses and integers

While this library is not strictly necessary, it helps to minimise the
changes to a driver, in order to make it work under fdt control. Less
code is required, and so the barrier to switch drivers over is lower.

Additional functions to read arrays and GPIOs could be made available
here also.

Signed-off-by: Simon Glass <sjg@chromium.org>

include: fdtdec: decouple fdt_addr_t and phys_addr_t size

The DT specification supports CPUs with both 32-bit and 64-bit addressing
capabilities. In U-boot the fdt_addr_t and phys_addr_t size are coupled
by a typedef. The MTD NAND drivers for 32-bit CPU's can describe partitions
with a 64-bit reg property. These partitions synced from Linux end up with
the wrong offset and sizes when only the lower 32-bit is passed.
Decouple the fdt_addr_t and phys_addr_t size as they don't necessary
match.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

mtd: nand: sunxi: Convert from fdtdec to ofnode

As a first step toward converting this driver to the driver model, use
the ofnode abstraction to replace direct references to the FDT blob.

Using ofnode_read_u32_index removes an extra pair of loops and makes the
allwinner,rb property optional, matching the devicetree binding.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

fdt: Avoid exporting fdtdec_prepare_fdt()

This function is not used outside this file. Make it static.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdtdec.h: Remove gurads around fdtdec_resetup function

This function has not been conditionally compiled for some time, so
remove the incorrect guards around the declaration.

Signed-off-by: Tom Rini <trini@konsulko.com>

dm: Fix OF_BAD_ADDR definition

When OF_LIVE flag is enabled on a 64 bits platform, there is an
issue when dev_read_addr() is called and need to perform an address
translation using __of_translate_address().

In case of error, __of_translate_address() return's value is OF_BAD_ADDR
(wich is defined in include/dm/of.h to ((u64)-1) = 0xffffffffffffffff).
The return value of dev_read_addr() is often compared to FDT_ADDR_T_NONE
which is defined as (-1U) = 0xffffffff.
In this case the comparison is always false.

To fix this issue, define FDT_ADDR_T_NONE to (ulong)(-1) in case of
AARCH64. Update accordingly related tests.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

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>

fdt: Drop SPL_BUILD macro

This old macro is not needed anymore since we can use IS_ENABLED() now.
Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Record where the devicetree came from

Keep track of where the devicetree came from, so we can report this later.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Don't call board_fdt_blob_setup() without OF_BOARD

At present this override function is called even when OF_BOARD is not
enabled. This makes it impossible to disable this feature and in fact
makes the OF_BOARD option useless.

Reinstate its intended purpose, so that it is possible to switch between
the appended devicetree and one provided by the board's custom function.

A follower patch adds warnings for this scenario, but for now we don't
have a Kconfig that definitively tells us that OF_BOARD should be used.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Drop CONFIG_SPL_BUILD check in fdtdec_setup()

Move this to the header file to clean up the C code.

Signed-off-by: Simon Glass <sjg@chromium.org>

sandbox: Remove OF_HOSTFILE

OF_HOSTFILE is used on sandbox configs only. Although it's pretty
unique and not causing any confusions, we are better of having simpler
config options for the DTB.

So let's replace that with the existing OF_BOARD. U-Boot would then
have only three config options for the DTB origin.
- OF_SEPARATE, build separately from U-Boot
- OF_BOARD, board specific way of providing the DTB
- OF_EMBED embedded in the u-boot binary(should not be used in production

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

treewide: Remove OF_PRIOR_STAGE

The previous patches removed OF_PRIOR_STAGE from the last consumers of the
Kconfig option. Cleanup any references to it in documentation, code and
configuration options.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdtdec: Support reserved-memory flags

Reserved memory nodes can have additional flags. Support reading and
writing these flags to ensure that reserved memory nodes can be properly
parsed and emitted.

This converts support for the existing "no-map" flag to avoid extending
the argument list for fdtdec_add_reserved_memory() to excessive length.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdtdec: Reorder fdtdec_set_carveout() parameters for consistency

The fdtdec_set_carveout() function's parameters are inconsistent with
the parameters passed to fdtdec_add_reserved_memory(). Fix up the order
to make it more consistent.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdtdec: Support compatible string list for reserved memory

Reserved memory nodes can have a compatible string list to identify the
type of reserved memory that they represent. Support specifying an
optional compatible string list when creating these nodes.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdtdec: Support retrieving the name of a carveout

When retrieving a given carveout for a device, allow callers to query
the name. This helps differentiating between carveouts when there are
more than one.

This is also useful when copying carveouts to help assign a meaningful
name that cannot always be guessed.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

treewide: fdt: Move fdt_get_config_... to ofnode_conf_read...

The current API is outdated as it requires a devicetree pointer.

Move these functions to use the ofnode API and update this globally. Add
some tests while we are here.

Correct the call in exynos_dsim_config_parse_dt() which is obviously
wrong.

Signed-off-by: Simon Glass <sjg@chromium.org>

samsung: exynos: Convert SROMC interface to a driver

Add a bus driver for this and use it to configure the bus parameters for
the Ethernet interface. Drop the old pre-driver-model code.

Switch over to use driver model for Ethernet.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

dm: core: Add size operations on device tree references

Add functions to add size of addresses in the device tree using ofnode
references.

If the size is not set, return FDT_SIZE_T_NONE.

Signed-off-by: Chen Guanqiao <chenguanqiao@kuaishou.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdtdec: optionally add property no-map to created reserved memory node

Add boolean input argument @no_map to helper function
fdtdec_add_reserved_memory() to add or not "no-map" property
for an added reserved memory node.

Property no-map is used by the Linux kernel to not not map memory
in its static memory mapping. It is needed for example for the|
consistency of system non-cached memory and to prevent speculative
accesses to some firewalled memory.

No functional change. A later change will update to OPTEE library to
add no-map property to OP-TEE reserved memory nodes.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdtdec: Add API to read pci bus-range property

Add fdtdec_get_pci_bus_range to read bus-range property
values.

Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

lib: fdt: Introduce fdtdec_setup_mem_size_base_lowest()

New function should be called from board dram_init() because it initialized
gd->ram_base/ram_size. It finds the lowest available memory.

On systems with multiple memory nodes finding out the first memory node by
fdtdec_setup_mem_size_base() is not enough because this memory can be above
actual U-Boot VA mapping. Currently only mapping till 39bit is supported
(Full 44bit mapping was removed by commit 7985cdf74b28 ("arm64: Remove
non-full-va map code")).
If DT starts with the first memory node above 39bit address then system can
be unpredictable.

The function is available only when multiple memory bank support is
enabled.

Calling fdtdec_setup_memory_banksize() from dram_init() is not possible
because fdtdec_setup_memory_banksize() is saving dram information to bd
structure which is placed on stack but not initialized at this time. Also
stack is placed at location setup in dram_init().

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Revert "lib: fdt: Split fdtdec_setup_mem_size_base()"

This reverts commit 3ebe09d09a407f93022d945a205c5318239eb3f6.

There is no user of this split function that's why remove it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Revert "lib: fdt: Split fdtdec_setup_memory_banksize()"

This reverts commit 118f4d4559a4386fa87a1e2509e84a1986b24a34.

There is no user of this split function that's why remove it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Revert "Merge tag 'dm-pull-20jul20' of git://git.denx.de/u-boot-dm"

This reverts commit 5d3a21df6694ebd66d5c34c9d62a26edc7456fc7, reversing
changes made to 56d37f1c564107e27d873181d838571b7d7860e7.

Unfortunately this is causing CI failures:
https://travis-ci.org/github/trini/u-boot/jobs/711313649

Signed-off-by: Tom Rini <trini@konsulko.com>

Revert "lib: fdt: Split fdtdec_setup_mem_size_base()"

This reverts commit 3ebe09d09a407f93022d945a205c5318239eb3f6.

There is no user of this split function that's why remove it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Revert "lib: fdt: Split fdtdec_setup_memory_banksize()"

This reverts commit 118f4d4559a4386fa87a1e2509e84a1986b24a34.

There is no user of this split function that's why remove it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdtdec: Add weak function to patch U-Boot DT right after fdtdec_setup()

Add weak function which is called right after fdtdec_setup() configured
the U-Boot DT. This permits board-specific adjustments to the U-Boot DT
before U-Boot starts parsing the DT. This could be used e.g. to patch in
various custom nodes or merge in DT fragments from prior-stage firmware.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>

dm: pci: Update a few more interfaces for const udevice *

Tidy up a few places where const * should be used.

Signed-off-by: Simon Glass <sjg@chromium.org>

common: Move embedded fdt location to fdtdec.h

These declarations are only used in fdtdec.c so move them to its header
file.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdtdec: only create phandle if caller wants it in fdtdec_add_reserved_memory()

The phandlep pointer returning the phandle to the caller is optional
and if it is not set when calling fdtdec_add_reserved_memory() it is
highly likely that the caller is not interested in a phandle to the
created reserved-memory area and really just wants that area added.

So just don't create a phandle in that case.

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdtdec: protect against another NULL phandlep in fdtdec_add_reserved_memory()

The change adding fdtdec_add_reserved_memory() already protected the added
phandle against the phandlep being NULL - making the phandlep var optional.

But in the early code checking for an already existing carveout this check
was not done and thus the phandle assignment could run into trouble,
so add a check there as well, which makes the function still return
successfully if a matching region is found, even though no-one wants to
work with the phandle.

Fixes: c9222a08b3f7 ("fdtdec: Implement fdtdec_add_reserved_memory()")
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

dm: core: Drop fdtdec_get_pci_addr()

This function ise effectively replaced by ofnode_read_pci_addr() which
works with flat tree. Delete it to avoid code duplication.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL

The current preprocessor logic prevents CONFIG_OF_PRIOR_STAGE from being
used in U-Boot SPL. Change the logic to also make it available in U-Boot
SPL.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>

fdtdec: Add fdtdec_set_ethernet_mac_address()

This function can be used to set the local MAC address for the default
Ethernet interface in its device tree node. The default interface is
identified by the "ethernet" alias.

One case where this is useful is for devices that store their MAC
address in a custom location. Once extracted, board code can store the
MAC address in U-Boot's control DTB so that it will automatically be
used by the Ethernet uclass.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

fdtdec: Remove fdt_{addr,size}_unpack()

U-Boot already defines the {upper,lower}_32_bits() macros that have the
same purpose. Use the existing macros instead of defining new APIs.

Signed-off-by: Thierry Reding <treding@nvidia.com>

fdtdec: Use fdt_setprop_u32() for fdtdec_set_phandle()

The fdt_setprop_u32() function does everything that we need, so we
really only use the function as a convenience wrapper, in which case it
can simply be a static inline function.

Signed-off-by: Thierry Reding <treding@nvidia.com>

fdtdec: Implement carveout support functions

The fdtdec_get_carveout() and fdtdec_set_carveout() function can be used
to read a carveout from a given node or add a carveout to a given node
using the standard device tree bindings (involving reserved-memory nodes
and the memory-region property).

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

fdtdec: Implement fdtdec_add_reserved_memory()

This function can be used to add subnodes in the /reserved-memory node.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

fdtdec: Implement fdtdec_set_phandle()

This function can be used to set a phandle for a given node.

Signed-off-by: Thierry Reding <treding@nvidia.com>

fdtdec: Add fdt_{addr, size}_unpack() helpers

These helpers can be used to unpack variables of type fdt_addr_t and
fdt_size_t into a pair of 32-bit variables. This is useful in cases
where such variables need to be written to properties (such as "reg")
of a device tree node where they need to be split into cells.

Signed-off-by: Thierry Reding <treding@nvidia.com>

fdtdec: Add cpu_to_fdt_{addr, size}() macros

These macros are useful for converting the endianness of variables of
type fdt_addr_t and fdt_size_t.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

lib: fdt: Split fdtdec_setup_memory_banksize()

Split fdtdec_setup_memory_banksize() into fdtdec_setup_memory_banksize_fdt(),
which allows the caller to pass custom blob into the function and the
original fdtdec_setup_memory_banksize(), which uses the gd->fdt_blob. This
is useful when configuring the DRAM properties from a FDT blob fragment
passed in by the firmware.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

lib: fdt: Split fdtdec_setup_mem_size_base()

Split fdtdec_setup_mem_size_base() into fdtdec_setup_mem_size_base_fdt(),
which allows the caller to pass custom blob into the function and the
original fdtdec_setup_mem_size_base(), which uses the gd->fdt_blob. This
is useful when configuring the DRAM properties from a FDT blob fragment
passed in by the firmware.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Merge branch 'master' of git://git.denx.de/u-boot-i2c

- DM I2C improvements

fdt: tegra: Drop COMPAT_AMS_AS3722

This is no-longer used. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>

fdt: samsung: Drop unused fdt_compat_id values

This enum still exists but we can shrink it a little based on recent
driver-model conversions with samsung. Update it to remove unused items.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>

fdt: Introduce fdtdec_get_alias_highest_id()

Find out the highest alias ID used for certain subsystem.
This call will be used for alocating IDs for i2c buses which are not
described in DT.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>

lib: fdtdec: Add function re-setup the fdt more effeciently

In some cases it may be useful to be able to change the fdt we have been
using and use another one instead. For example, the TI platforms uses an
EEPROM to store board information and, based on the type of board,
different dtbs are used by the SPL. When DM_I2C is used, a first dtb must
be used before the I2C is initialized and only then the final dtb can be
selected.
To speed up the process and reduce memory usage, introduce a new function
fdtdec_setup_best_match() that re-use the DTBs loaded in memory by
fdtdec_setup() to select the best match.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Heiko Schocher <hs@denx.de>

fdt: restore board_fdt_blob_setup() declaration

Commit 90c08fa038451d (fdt: Add device tree memory bindings) removed the
prototype declaration of board_fdt_blob_setup(), most likely by mistake.
This didn't break the build because the only file calling this function
(lib/fdtdec.c) provides a local weak definition. Restore the
declaration.

Cc: Michael Pratt <mpratt@chromium.org>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdt: Remove fdtdec_decode_region() function

This function is not used in U-Boot now. Remove it along with its 'memory'
version.

Signed-off-by: Simon Glass <sjg@chromium.org>

lib: fdtdec: Rename routine fdtdec_setup_memory_size()

This patch renames the routine fdtdec_setup_memory_size()
to fdtdec_setup_mem_size_base() as it now fills the
mem base as well along with size.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

board: arm: Add support for Broadcom BCM7445

Add support for loading U-Boot on the Broadcom 7445 SoC. This port
assumes Broadcom's BOLT bootloader is acting as the second stage
bootloader, and U-Boot is acting as the third stage bootloader, loaded
as an ELF program by BOLT.

Signed-off-by: Thomas Fitzsimmons <fitzsim@fitzsim.org>
Cc: Stefan Roese <sr@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>

fdt: Add device tree memory bindings

Support a default memory bank, specified in reg, as well as
board-specific memory banks in subtree board-id nodes.

This allows memory information to be provided in the device tree,
rather than hard-coded in, which will make it simpler to handle
similar devices with different memory banks, as the board-id values
or masks can be used to match devices.

Signed-off-by: Michael Pratt <mpratt@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>

fdt: Add another Altera Arria10 clock init compatible

The DT bindings for the Arria10 clock init have changed, add another
compatible to make them work with U-Boot until a proper clock driver
gets written.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>

lib: fdtdec: drop the old compatible about max77686

Drop the old compatible about max77686.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Lukasz Majewski <lukma@denx.de>

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>

libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h>

Thomas reported U-Boot failed to build host tools if libfdt-devel
package is installed because tools include libfdt headers from
/usr/include/ instead of using internal ones.

This commit moves the header code:
include/libfdt.h -> include/linux/libfdt.h
include/libfdt_env.h -> include/linux/libfdt_env.h

and replaces include directives:
#include <libfdt.h> -> #include <linux/libfdt.h>
#include <libfdt_env.h> -> #include <linux/libfdt_env.h>

Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

sandbox: Add 64-bit sandbox

To debug device tree issues involving 32- and 64-bit platforms, it is useful to
have a generic 64-bit platform available.

Add a version of the sandbox that uses 64-bit integers for its physical
addresses as well as a modified device tree.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
Added CONFIG_SYS_TEXT_BASE to configs/sandbox64_defconfig
Signed-off-by: Simon Glass <sjg@chromium.org>

fdtdec: allow board to provide fdt for CONFIG_OF_SEPARATE

Similar to CONFIG_OF_BOARD, but in this case the fdt is still built by
u-boot build. This allows the board to patch the fdt, etc.

In the specific case of dragonboard 410c, we pass the u-boot generated
fdt to the previous stage of bootloader (by embedding it in the
u-boot.img that is loaded by lk/aboot), which patches the fdt and passes
it back to u-boot.

Signed-off-by: Rob Clark <robdclark@gmail.com>
[trini: Update board_fdt_blob_setup #if check]
Signed-off-by: Tom Rini <trini@konsulko.com>

fdt: Add compatible strings for Arria 10

Add compatible strings for Intel Arria 10 SoCFPGA device.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>

dtoc: Add support for 32 or 64-bit addresses

When using 32-bit addresses dtoc works correctly. For 64-bit addresses it
does not since it ignores the #address-cells and #size-cells properties.

Update the tool to use fdt64_t as the element type for reg properties when
either the address or size is larger than one cell. Use the correct value
so that C code can obtain the information from the device tree easily.

Alos create a new type, fdt_val_t, which is defined to either fdt32_t or
fdt64_t depending on the word size of the machine. This type corresponds
to fdt_addr_t and fdt_size_t. Unfortunately we cannot just use those types
since they are defined to phys_addr_t and phys_size_t which use
'unsigned long' in the 32-bit case, rather than 'unsigned int'.

Add tests for the four combinations of address and size values (32/32,
64/64, 32/64, 64/32). Also update existing uses for rk3399 and rk3368
which now need to use the new fdt_val_t type.

Signed-off-by: Simon Glass <sjg@chromium.org>

Suggested-by: Heiko Stuebner <heiko@sntech.de>
Reported-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Kever Yang <kever.yang@rock-chips.com>

fdtdec: Drop old compatible values

These are not needed now since the drivers now use driver model. Drop
them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1
Tested-by: Stephen Warren <swarren@nvidia.com>

cros_ec: Convert to support live tree

Convert this driver to support the live device tree and remove the old
fdtdec support.

The keyboard is not yet converted.

Signed-off-by: Simon Glass <sjg@chromium.org>

dm: core: Add a place to put extra device-tree reading functions

Some functions deal with structured data rather than simple data types.
It makes sense to have these in their own file. For now this just has a
function to read a flashmap entry. Move the data types also.

Signed-off-by: Simon Glass <sjg@chromium.org>

edid: Add HDMI flag to timing info

Some DVI monitors don't show anything in HDMI mode since audio stream
confuses them. To solve this situation, this commit adds HDMI flag in
timing data and sets it accordingly during edid parsing.

First existence of extension block is checked. If it exists and it is
CEA861 extension, then data blocks are checked for presence of HDMI
vendor specific data block. If it is present, HDMI flag is set.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Simon Glass <sjg@chromium.org>

Allow boards to initialize the DT at runtime.

In some boards like the Raspberry Pi the initial bootloader will pass
a DT to the kernel. When using U-Boot as such kernel, the board code in
U-Boot should be able to provide U-Boot with this, already assembled
device tree blob.

This patch introduces a new config option CONFIG_OF_BOARD to use instead
of CONFIG_OF_EMBED or CONFIG_OF_SEPARATE which will initialize the DT
from a board-specific funtion instead of bundling one with U-Boot or as
a separated file. This allows boards like the Raspberry Pi to reuse the
device tree passed from the bootcode.bin and start.elf firmware
files, including the run-time selected device tree overlays.

Signed-off-by: Alex Deymo <deymo@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

fdt: Add compatible strings for Arria 10

Add compatible strings for Intel Arria 10 SoCFPGA device.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>

fdt: add memory bank decoding functions for board setup

Add two functions for use by board implementations to decode the memory
banks of the /memory node so as to populate the global data with
ram_size and board info for memory banks.

The fdtdec_setup_memory_size() function decodes the first memory bank
and sets up the gd->ram_size with the size of the memory bank. This
function should be called from the boards dram_init().

The fdtdec_setup_memory_banksize() function decode the memory banks
(up to the CONFIG_NR_DRAM_BANKS) and populates the base address and size
into the gd->bd->bi_dram array of banks. This function should be called
from the boards dram_init_banksize().

Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Michal Simek <monstr@monstr.eu>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

usb: uniphier: remove UniPhier xHCI driver and select DM_USB

This driver has not been converted to Driver Model, and it is an
obstacle to migrate other block device drivers. Remove it for now.

The UniPhier SoCs already use a DM-based EHCI driver, so now
ARCH_UNIPHIER can select DM_USB.

These two changes must be done atomically because removing the
legacy driver causes a build error.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marex@denx.de>

fdt: allow fdtdec_get_addr_size_*() to translate addresses

Some code may want to read reg values from DT, but from nodes that aren't
associated with DM devices, so using dev_get_addr_index() isn't
appropriate. In this case, fdtdec_get_addr_size_*() are the functions to
use. However, "translation" (via the chain of ranges properties in parent
nodes) may still be desirable. Add a function parameter to request that,
and implement it. Update all call sites to default to the original
behaviour.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Squashed in build fix from Stephen:
Signed-off-by: Simon Glass <sjg@chromium.org>

mtd: nand: Add the sunxi NAND controller driver

We already have an SPL driver for the sunxi NAND controller, now add
the normal/standard one.

The source has been copied from Linux 4.6 with a few changes to make
it work in u-boot.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>

sandbox: Find keyboard driver using driver model

The cros-ec keyboard is always a child of the cros-ec node. Rather than
searching the device tree, looking at the children. Remove the compat string
which is now unused.

Signed-off-by: Simon Glass <sjg@chromium.org>

fdt: Drop unused exynos compatible strings

A few drivers have moved to driver model, so we can drop these strings.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>

x86: fdt: Drop the unused compatible strings in fdtdec

We have drivers for several more devices now, so drop the strings which are
no-longer used.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

fdt: Drop some unused compatible strings

We have driver-model drivers for some of these now, so drop them.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

mmc: tegra: add basic Tegra186 support

Tegra186's MMC controller needs to be explicitly identified. Add another
compatible value for it.

Tegra186 will use an entirely different clock/reset control mechanism to
existing chips, and will use standard clock/reset APIs rather than the
existing Tegra-specific custom APIs. The driver support for that isn't
ready yet, so simply disable all clock/reset usage if compiling for
Tegra186. This must happen at compile time rather than run-time since the
custom APIs won't even be compiled in on Tegra186. In the long term, the
plan would be to convert the existing custom APIs to standard APIs and get
rid of the ifdefs completely.

The system's main eMMC will work without any clock/reset support, since
the firmware will have already initialized the controller in order to
load U-Boot. Hence the driver is useful even in this apparently crippled
state.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>