#
77acc85c |
|
21-Sep-2022 |
Arnd Bergmann <arnd@arndb.de> |
ARM: mmp: remove device definitions Since all board support is now gone, a lot of code in the platform is no longer called and can be removed as well. The remaining parts are: * The interrupt numbers for pxa910 are still needed for the power management support. * The 'mfp' device is still statically initialized from platform code, though this could be moved into the pinctrl code * The CPU identification code is used for the cpu_is_mmp*() macros. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
#
e348b401 |
|
03-Dec-2022 |
Doug Brown <doug@schmorgal.com> |
ARM: mmp: fix timer_read delay timer_read() was using an empty 100-iteration loop to wait for the TMR_CVWR register to capture the latest timer counter value. The delay wasn't long enough. This resulted in CPU idle time being extremely underreported on PXA168 with CONFIG_NO_HZ_IDLE=y. Switch to the approach used in the vendor kernel, which implements the capture delay by reading TMR_CVWR a few times instead. Fixes: 49cbe78637eb ("[ARM] pxa: add base support for Marvell's PXA168 processor line") Signed-off-by: Doug Brown <doug@schmorgal.com> Link: https://lore.kernel.org/r/20221204005117.53452-3-doug@schmorgal.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
#
3819ad44 |
|
09-Apr-2020 |
Stephen Boyd <sboyd@kernel.org> |
ARM: mmp: Remove legacy clk code Remove all the legacy clk code that supports a non-common clk framework implementation of 'struct clk' in mach-mmp. This code doesn't look to be compiled anymore given that the MMP is fully supported in the multi-platform config via ARCH_MULTIPLATFORM as of commit 377524dc4d77 ("ARM: mmp: move into ARCH_MULTIPLATFORM"). The ARCH_MULTIPLATFORM config selects COMMON_CLK and therefore the Makefile rule can never actually compile the code in these files. Cc: Lubomir Rintel <lkundrak@v3.sk> Cc: Russell King <linux@armlinux.org.uk> Cc: <linux-arm-kernel@lists.infradead.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://lkml.kernel.org/r/20200409064416.83340-9-sboyd@kernel.org Reviewed-by: Arnd Bergmann <arnd@arndb.de> [sboyd@kernel.org: Squash in a clock.h include removal found by Stephen Rothwell <sfr@canb.auug.org.au>]
|
#
2fcf5335 |
|
27-Mar-2020 |
afzal mohammed <afzal.mohd.ma@gmail.com> |
ARM: mmp: replace setup_irq() by request_irq() request_irq() is preferred over setup_irq(). Invocations of setup_irq() occur after memory allocators are ready. Per tglx[1], setup_irq() existed in olden days when allocators were not ready by the time early interrupts were initialized. Hence replace setup_irq() by request_irq(). [1] https://lkml.kernel.org/r/alpine.DEB.2.20.1710191609480.1971@nanos Link: https://lore.kernel.org/r/20200327124437.4239-1-afzal.mohd.ma@gmail.com Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com> Acked-by: Lubomir Rintel <lkundrak@v3.sk> Tested-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
#
0bd0f30b |
|
18-Dec-2019 |
Lubomir Rintel <lkundrak@v3.sk> |
ARM: mmp: do not divide the clock rate This was done because the clock driver returned the wrong rate, which is fixed in "clk: mmp2: Fix the order of timer mux parents" patch. Link: https://lore.kernel.org/r/20191218190454.420358-2-lkundrak@v3.sk Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Olof Johansson <olof@lixom.net>
|
#
32adcaa0 |
|
08-Aug-2019 |
Lubomir Rintel <lkundrak@v3.sk> |
ARM: mmp: move cputype.h to include/linux/soc/ Let's move cputype.h away from mach-mmp/ so that the drivers outside that directory are able to tell the precise silicon revision. The MMP3 USB OTG PHY driver needs this. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
|
#
a9372a5f |
|
16-May-2019 |
Lubomir Rintel <lkundrak@v3.sk> |
ARM: mmp: add support for MMP3 SoC Similar to MMP2, which this patch is based on. Known differencies from MMP2 are: * Two PJ4B cores instead of one PJ4 * Tauros 3 L2 cache controller instead of Tauros 2 * A GIC interrupt controller optionally used instead of the MMP one * A TWD local timer * Different USB2 PHY * A USB3 SS controller * More interrupt muxes Hard to tell what else is different, because documentation is not available. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
|
#
1732050f |
|
10-Jul-2019 |
Lubomir Rintel <lkundrak@v3.sk> |
ARM: mmp: DT: convert timer driver to use TIMER_OF_DECLARE This makes things just a tiny bit simpler. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
|
#
d2912cb1 |
|
04-Jun-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
12d3a30d |
|
10-Dec-2018 |
Arnd Bergmann <arnd@arndb.de> |
ARM: mmp: fix timer_init calls The change to passing the timer frequency as a function argument was a good idea, but caused a build failure for one user that was missed in the update: arch/arm/mach-mmp/time.c: In function 'mmp_dt_init_timer': arch/arm/mach-mmp/time.c:242:2: error: implicit declaration of function 'timer_init'; did you mean 'hrtimer_init'? [-Werror=implicit-function-declaration] Change that as well to fix the build error, and rename the function to put it into a proper namespace and make it clearer what is actually going on. I saw that the high 6500000 HZ frequency was previously only set with CONFIG_MMP2, but is now also used with MMP (pxa910), so I'm changing that back here. Please make sure that the frequencies are all correct now. Fixes: f36797ee4380 ("ARM: mmp/mmp2: dt: enable the clock") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Olof Johansson <olof@lixom.net>
|
#
f36797ee |
|
28-Nov-2018 |
Lubomir Rintel <lkundrak@v3.sk> |
ARM: mmp/mmp2: dt: enable the clock The device-tree booted MMP2 needs to enable the timer clock, otherwise it would stop ticking when the boot finishes. It can also use the clock rate from the clk, the non-DT boards need to keep using the hardcoded rates. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Olof Johansson <olof@lixom.net>
|
#
a5a1d1c2 |
|
21-Dec-2016 |
Thomas Gleixner <tglx@linutronix.de> |
clocksource: Use a plain u64 instead of cycle_t There is no point in having an extra type for extra confusion. u64 is unambiguous. Conversion was done with the following coccinelle script: @rem@ @@ -typedef u64 cycle_t; @fix@ typedef cycle_t; @@ -cycle_t +u64 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: John Stultz <john.stultz@linaro.org>
|
#
b501fd7b |
|
15-Apr-2014 |
Arnd Bergmann <arnd@arndb.de> |
ARM: mmp: make all header files local The mach/*.h headers are now inaccessible to any external code, so we can move them all into the mach-mmp directory itself and remove the subdirectories. A few headers are not used at all, so we remove them here. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
#
a785fb39 |
|
27-Feb-2015 |
Viresh Kumar <viresh.kumar@linaro.org> |
ARM/mmp/time: Migrate to new 'set-state' interface Migrate mmp driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. We weren't doing anything in set_mode(RESUME) except of local_irq_{save|restore}(), which isn't required and so ->tick_resume isn't implemented. Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
|
#
444d2d33 |
|
18-Feb-2015 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
ARM: make of_device_ids const of_device_ids (i.e. compatible strings and the respective data) are not supposed to change at runtime. All functions working with of_device_ids provided by <linux/of.h> work with const of_device_ids. So mark the non-const structs in arch/arm as const, too. While at it also add some __initconst annotations. Acked-by: Jason Cooper <jason@lakedameon.net> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
#
9929eedc |
|
04-Mar-2014 |
Michael Opdenacker <michael@free-electrons.com> |
ARM: 8001/1: mmp: remove deprecated IRQF_DISABLED This patch removes the use of the IRQF_DISABLED flag from arch/arm/mach-mmp/time.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
#
ea158119 |
|
12-Nov-2013 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
ARM: mmp: stop using mach/timex.h mach/timex.h is the last remaining header that is unused for multiarch builds but necessary for singlearch builds. To allow to get rid of it for singlearch builds, too, drop its usage in mmp arch code by substituting CLOCK_TICK_RATE by a local cpp symbol. Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
|
#
e5c0228d |
|
15-Nov-2013 |
Stephen Boyd <sboyd@codeaurora.org> |
ARM: mmp: Switch to sched_clock_register() The 32 bit sched_clock interface now supports 64 bits. Upgrade to the 64 bit function to allow us to remove the 32 bit registration interface. Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Kevin Hilman <khilman@linaro.org>
|
#
38ff87f7 |
|
02-Jun-2013 |
Stephen Boyd <sboyd@codeaurora.org> |
sched_clock: Make ARM's sched_clock generic for all architectures Nothing about the sched_clock implementation in the ARM port is specific to the architecture. Generalize the code so that other architectures can use it by selecting GENERIC_SCHED_CLOCK. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> [jstultz: Merge minor collisions with other patches in my tree] Signed-off-by: John Stultz <john.stultz@linaro.org>
|
#
838a2ae8 |
|
12-Jan-2013 |
Shawn Guo <shawn.guo@linaro.org> |
ARM: use clockevents_config_and_register() where possible The clockevent core is able to figure out the best mult and shift, calculate min_delta_ns and max_delta_ns, with the necessary info passed into clockevents_config_and_register(). Use this combined configure and register function where possible to make the codes less error prone and gain some positive diff stat. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Anton Vorontsov <cbouatmailru@gmail.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Tested-by: Roland Stigge <stigge@antcom.de> Acked-by: Eric Miao <eric.y.miao@gmail.com> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: David Brown <davidb@codeaurora.org> Tested-by: Tony Lindgren <tony@atomide.com> Acked-by: Barry Song <baohua.song@csr.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Tony Prisk <linux@prisktech.co.nz> Cc: Lennert Buytenhek <buytenh@wantstofly.org> Cc: Wan ZongShun <mcuos.com@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Olof Johansson <olof@lixom.net>
|
#
c68ef2b5 |
|
12-Apr-2012 |
Haojian Zhuang <haojian.zhuang@gmail.com> |
ARM: mmp: support DT in timer Parse timer from DTS file. Avoid to use hardcoding marco for register. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
|
#
2f0778af |
|
14-Dec-2011 |
Marc Zyngier <maz@kernel.org> |
ARM: 7205/2: sched_clock: allow sched_clock to be selected at runtime sched_clock() is yet another blocker on the road to the single image. This patch implements an idea by Russell King: http://www.spinics.net/lists/linux-omap/msg49561.html Instead of asking the platform to implement both sched_clock() itself and the rollover callback, simply register a read() function, and let the ARM code care about sched_clock() itself, the conversion to ns and the rollover. sched_clock() uses this read() function as an indirection to the platform code. If the platform doesn't provide a read(), the code falls back to the jiffy counter (just like the default sched_clock). This allow some simplifications and possibly some footprint gain when multiple platforms are compiled in. Among the drawbacks, the removal of the *_fixed_sched_clock optimization which could negatively impact some platforms (sa1100, tegra, versatile and omap). Tested on 11MPCore, OMAP4 and Tegra. Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Colin Cross <ccross@android.com> Cc: Erik Gilling <konkers@android.com> Cc: Olof Johansson <olof@lixom.net> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Alessandro Rubini <rubini@unipv.it> Cc: STEricsson <STEricsson_nomadik_linux@list.st.com> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Ben Dooks <ben-linux@fluff.org> Tested-by: Jamie Iles <jamie@jamieiles.com> Tested-by: Tony Lindgren <tony@atomide.com> Tested-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Krzysztof Halasa <khc@pm.waw.pl> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
#
af9dafb1 |
|
09-Aug-2011 |
Lennert Buytenhek <buytenh@wantstofly.org> |
ARM: mmp: Change the way we use timer 0 as clockevent timer. Instead of setting up a match interrupt for 'current_time + delta' on ->set_next_event(), program timer 0 to count down from 'delta - 1' and trigger an interrupt when it reaches zero. Signed-off-by: Lennert Buytenhek <buytenh@laptop.org> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
|
#
71c0c341 |
|
09-Aug-2011 |
Lennert Buytenhek <buytenh@wantstofly.org> |
ARM: mmp: Switch to using timer 1 as clocksource timer. Signed-off-by: Lennert Buytenhek <buytenh@laptop.org> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
|
#
7ce5ae39 |
|
09-Aug-2011 |
Lennert Buytenhek <buytenh@wantstofly.org> |
ARM: mmp: Also start timer 1 on boot. Currently, arch-mmp/time.c uses timer 0 both as a clocksource timer and as a clockevent timer, the latter by setting up a comparator interrupt to match on 'current_time + delta'. This is problematic if delta is small enough, as that can lead to 'current_time + delta' already being in the past when comparator setup has finished, leading to the requested event not triggering. As there is also a silicon issue that requires stopping a timer's counter while writing to one of its match registers, we'll switch to using two separate timers -- timer 0 as clockevent timer, which we'll start and stop on every invocation of ->set_next_event(), and timer 1 as clocksource timer, which will be free-running. This first patch enables timer 1 on boot, so that we can use it as clocksource timer. Signed-off-by: Lennert Buytenhek <buytenh@laptop.org> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
|
#
25985edc |
|
30-Mar-2011 |
Lucas De Marchi <lucas.demarchi@profusion.mobi> |
Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
|
#
28bb7bc6 |
|
15-Dec-2010 |
Russell King <rmk+kernel@arm.linux.org.uk> |
ARM: mmp: convert sched_clock() to use new infrastructure Convert mmp to use the new sched_clock() infrastructure for extending 32bit counters to full 64-bit nanoseconds. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
#
5e06b649 |
|
15-Dec-2010 |
Russell King <rmk+kernel@arm.linux.org.uk> |
ARM: ensure all sched_clock() implementations are notrace marked ftrace requires sched_clock() to be notrace. Ensure that all implementations are so marked. Also make sure that they include linux/sched.h Also ensure OMAP clocksource read functions are marked notrace as they're used for sched_clock() too. Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Will Deacon <will.deacon@arm.com> Tested-by: Mikael Pettersson <mikpe@it.uu.se> Tested-by: Eric Miao <eric.y.miao@gmail.com> Tested-by: Olof Johansson <olof@lixom.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
#
5975f496 |
|
13-Dec-2010 |
Russell King <rmk+kernel@arm.linux.org.uk> |
ARM: mmp: update clock source registration In d7e81c2 (clocksource: Add clocksource_register_hz/khz interface) new interfaces were added which simplify (and optimize) the selection of the divisor shift/mult constants. Switch over to using this new interface. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
#
4d4a339d |
|
15-Jul-2010 |
Eric Miao <eric.y.miao@gmail.com> |
[ARM] mmp: move mmp2 specific timer code to mmp2.c Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
|
#
2f7e8fae |
|
04-Dec-2009 |
Haojian Zhuang <haojian.zhuang@marvell.com> |
[ARM] mmp: add support for Marvell MMP2 Marvell MMP2 (aka ARMADA610) is a SoC based on PJ4 core. It's ARMv6 compatible. Support basic interrupt handler and timer, and basic support for MMP2 based FLINT platform. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
|
#
f5c81a32 |
|
22-Apr-2009 |
Coly Li <coly.li@suse.de> |
[ARM] pxa: add parameter to clksrc_read() for pxa168/910 This patch modifies parameter of clksrc_read() from 'void' to 'struct clocksource *cs', which fixes compile warning for incompatible parameter type. Signed-off-by: Coly Li <coly.li@suse.de> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Eric Miao <eric.miao@marvell.com>
|
#
49cbe786 |
|
19-Jan-2009 |
Eric Miao <eric.miao@marvell.com> |
[ARM] pxa: add base support for Marvell's PXA168 processor line """The Marvell® PXA168 processor is the first in a family of application processors targeted at mass market opportunities in computing and consumer devices. It balances high computing and multimedia performance with low power consumption to support extended battery life, and includes a wealth of integrated peripherals to reduce overall BOM cost .... """ See http://www.marvell.com/featured/pxa168.jsp for more information. 1. Marvell Mohawk core is a hybrid of xscale3 and its own ARM core, there are many enhancements like instructions for flushing the whole D-cache, and so on 2. Clock reuses Russell's common clkdev, and added the basic support for UART1/2. 3. Devices are a bit different from the 'mach-pxa' way, the platform devices are now dynamically allocated only when necessary (i.e. when pxa_register_device() is called). Description for each device are stored in an array of 'struct pxa_device_desc'. Now that: a. this array of device description is marked with __initdata and can be freed up system is fully up b. which means board code has to add all needed devices early in his initializing function c. platform specific data can now be marked as __initdata since they are allocated and copied by platform_device_add_data() 4. only the basic UART1/2/3 are added, more devices will come later. Signed-off-by: Jason Chagas <chagas@marvell.com> Signed-off-by: Eric Miao <eric.miao@marvell.com>
|