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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup
From Kukjin Kim:
Basically, this patch merges mach-s3c2410, mach-s3c2412 and mach-s3c2440
into mach-s3c24xx.
* 'next/cleanup-s3c24xx' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: S3C24XX: Move mach-s3c2440/ pll into mach-s3c24xx/
ARM: S3C24XX: Move mach-s3c2440/ cpufreq driver into mach-s3c24xx/
ARM: S3C24XX: Move mach-s3c2412/ cpufreq driver into mach-s3c24xx/
ARM: S3C2412: Remove useless codes mach-s3c2412/gpio.c
ARM: S3C24XX: Move mach-s3c2410/ pll into mach-s3c24xx/
ARM: S3C24XX: Move mach-s3c2410/ cpufreq into mach-s3c24xx/
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This patch moves mach-s3c2440/pll into mach-s3c24xx/
and removes arch/arm/mach-s3c2440/ directory in kernel.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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This patch moves mach-s3c2412/cpufreq driver into mach-s3c24xx/
and removes arch/arm/mach-s3c2412/ directory in kernel.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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This patch moves mach-s3c2410/pll into mach-s3c24xx/
and removes arch/arm/mach-s3c2410/ directory in kernel.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Basically, the cpufreq driver for s3c2410 should be implemented into
drivers/cpufreq, but we don't need to keep the mach-s3c2410 directory.
So this patch moves current cpufreq driver into mach-s3c24xx/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/cleanup
From Stephen Warren:
ARM: tegra: cleanup
This pull request contains various cleanup and minor changes to core
Tegra code:
* Tegra clocksource driver is moved to drivers/clocksource.
* Various typos, warning cleanup, statics cleanup, section mismatch
fixes, etc.
* Various small fixes/cleanups for CPU/hotplug/SMP code.
This pull request is based on a merge of v3.8-rc3 and at least part of
arm-soc's timer/cleanup branch.
* tag 'tegra-for-3.9-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
ARM: tegra: fix compile error when disable CPU_IDLE
ARM: tegra30: make the wait time of CPU power up to proportional to HZ
ARM: tegra: make device can run on UP
ARM: tegra: clean up the CPUINIT section
ARM: tegra: moving the clock gating procedure to tegra_cpu_kill
ARM: tegra: update the cache maintenance order for CPU shutdown
ARM: tegra30: fix power up sequence for boot_secondary
ARM: tegra: cpufreq: move clk_get/put out of function tegra_cpu_init/exit
ARM: tegra: fix Kconfig warnings when !SMP
ARM: tegra: Make variables static
clocksource: tegra: cosmetic: Fix error message
ARM: tegra: move timer.c to drivers/clocksource/
Signed-off-by: Olof Johansson <olof@lixom.net>
Trivial conflicts:
arch/arm/mach-tegra/board-dt-tegra20.c
arch/arm/mach-tegra/board-dt-tegra30.c
drivers/clocksource/Makefile
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The "sleep.S" file has many functions that be shared by different module
currently. Not just for CPU idle driver. Make it build as default now.
Reported-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
[swarren: add sleep.o to separate line so each line only contains 1 file]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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It would rather to use the API of time_to_jiffies than a constant number
of jiffies for the wait time of CPU power up.
Based on the work by:
Sang-Hun Lee <sanlee@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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The reset handler code is used for either UP or SMP. To make Tegra device
can compile for UP. It needs to be moved to another file that is not SMP
only. This is because the reset handler also be needed by CPU idle
"powered-down" mode. So we also need to put the reset handler init function
in non-SMP only and init them always.
And currently the implementation of the reset handler to know which CPU is
OK to bring up was identital with "cpu_present_mask". But the
"cpu_present_mask" did not initialize yet when the reset handler init
function was moved to init early function. We use the "cpu_possible_mask"
to replace "cpu_present_mask". Then it can work on both UP and SMP case.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
[swarren: dropped the move of v7_invalidate_l1() from one file to another,
to avoid conflicts with Pavel's cleanup of this function, adjust Makefile
so each line only contains 1 file.]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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There are some redundant codes in the CPUINIT section that was caused by
some codes not be organized well in "headsmp.S". Currently all the codes
in "headsmp.S" were put into CPUINIT section. But actually it doesn't
need to be loacted in CPUINIT section. There is no fuction access them
in CPUINIT section and we will relocate them to IRAM.
These codes also caused some unnecessary functions that access these
codes been put into CPUINIT section too. This patch clean it up and put
them into normal text section.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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The tegra_cpu_die was be executed by the CPU itslf. So the clock gating
procedure won't be executed after the CPU hardware shutdown code. Moving
the clock gating procedure to tegra_cpu_kill that will be run by another
CPU after the CPU died.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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Updating the cache maintenance order before CPU shutdown when doing CPU
hotplug.
The old order:
* clean L1 by flush_cache_all
* exit SMP
* CPU shutdown
Adapt to:
* disable L1 data cache by clear C bit
* clean L1 by v7_flush_dcache_louis
* exit SMP
* CPU shutdown
For CPU hotplug case, it's no need to do "flush_cache_all". And we should
disable L1 data cache before clean L1 data cache. Then leaving the SMP
coherency.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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The power up sequence is different on the cold boot CPU and the CPU
that resumed from the hotplug. For the cold boot CPU, it was been power
gated as default. To power up the cold boot CPU, the power should be
un-gated by un toggling the power gate register manually.
For the CPU that resumed from the hotplug, after un-halted the CPU. The
flow controller will un-gate the power of the CPU. No need to manually
control, just wait the power be resumed and continue the power up
sequence after the CPU power is ready.
Based on the work by:
Varun Wadekar <vwadekar@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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tegra_cpu_init/exit will be called every time one cpu core is online or
offline. And all cpu cores share same clocks, redundant clk_get/put
wast time, so I move them out.
Signed-off-by: Richard Zhao <linuxzsc@gmail.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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Fix:
warning: (ARCH_TEGRA_2x_SOC) selects ARM_ERRATA_754327 which has unmet direct dependencies (CPU_V7 && SMP)
warning: (ARCH_TEGRA_2x_SOC) selects ARM_ERRATA_742230 which has unmet direct dependencies (CPU_V7 && SMP)
by selecting options only if SMP.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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No need to be public. Checked with:
$ touch arch/arm/mach-tegra/*[ch] && make C=1
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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Move arch/arm/mach-tegra/timer.c to drivers/clocksource/tegra20_timer.c
so that the code is co-located with other clocksource drivers, and to
reduce the size of the mach-tegra directory.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.linaro.org/people/shawnguo/linux-2.6 into next/cleanup
From Shawn Guo:
The series cleans up ARCH_HAS_DECOMP_WDOG and arch_decomp_wdog which
are unused on ARM architecure. Samsung has some code setting up wdog
in arch_decomp_wdog(). But since CONFIG_S3C_BOOT_WATCHDOG is defined
nowhere, it will not run. Otherwise, system can not boot at all when
wdog is set up but no one pats it.
* tag 'cleanup-decompwdog-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: samsung: remove unused arch_decomp_wdog() code
ARM: remove unused arch_decomp_wdog()
ARM: decompress: remove unused ARCH_HAS_DECOMP_WDOG
Signed-off-by: Olof Johansson <olof@lixom.net>
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Besides the fact that CONFIG_S3C_BOOT_WATCHDOG is defined nowhere, with
ARCH_HAS_DECOMP_WDOG removed from arch/arm/boot/compressed/decompress.c,
all the arch_decomp_wdog() related code is not used. Remove them.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
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With ARCH_HAS_DECOMP_WDOG removed from arch/arm/boot/compressed/decompress.c,
all the arch_decomp_wdog() definition at platform level is unneeded.
Remmove it.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Jason Cooper <jason@lakedaemon.net>
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ARCH_HAS_DECOMP_WDOG is only used in lib/inflate.c which is not
included in arch/arm/boot/compressed/decompress.c now. That said,
ARCH_HAS_DECOMP_WDOG is not used at all. Let's remove it.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup
From Kukjin Kim:
AS I commented, this makes <mach/*.h> local so that they could be removed.
* 'next/cleanup-header' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (26 commits)
ARM: S3C64XX: Fix missing header error with CONFIG_CPU_IDLE enabled
ARM: S3C64XX: make regs-syscon-power.h local
ARM: S3C64XX: make regs-sys.h local
ARM: S3C64XX: make regs-srom.h local
ARM: S3C64XX: make regs-modem.h local
ARM: S3C64XX: make regs-gpio-memport.h local
ARM: S3C64XX: make crag6410.h local
ARM: S3C24XX: remove dsc.c and make regs-dsc.h local
ARM: S3C24XX: remove idle.h
ARM: S3C2412: cleanup regs-s3c2412.h
ARM: S3C2416: remove regs-s3c2416-mem.h and regs-s3c2416.h
ARM: S3C24XX: make vr1000-cpld.h, vr1000-irq.h and vr1000-map.h local
ARM: S3C24XX: make otom-map.h local
ARM: S3C24XX: make osiris-cpld.h and osiris-map.h local
ARM: S3C24XX: make h1940.h and h1940-latch.h local
ARM: S3C24XX: make gta02.h local
ARM: S3C24XX: make bast-cpld.h, bast-irq.h and bast-map.h local
ARM: S3C24XX: make anubis-cpld, anubis-irq and anubis-map local
ARM: SAMSUNG: cleanup mach/gpio-fns.h gpio-track.h and gpio-nrs.h
ARM: SAMSUNG: cleanup mach/regs-audss.h file
...
Signed-off-by: Olof Johansson <olof@lixom.net>
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Recently the regs-syscon-power.h header was moved from
mach-s3c64xx/include/mach to mach-s3c64xx/, but cpuidle.c was not
updated to include the header from its new location, which caused
build error with CONFIG_CPU_IDLE enabled.
This patch fixed the problem by updating the include line with
proper header location.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The header file can be local in mach-s3c64xx/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The header file can be local in mach-s3c64xx/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The header file can be local in mach-s3c64xx/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The header can be local in mach-s3c64xx/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The header can be local in mach-s3c64xx/.
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The header can be local in mach-s3c64xx/.
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The mach-s3c2440/dsc.c is no longer used and the header, regs-dsc.h
can be local in mach-s3c24xx/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The <mach/idle.h> is no longer used.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Move the regs-s3c2412.h into mach-s3c24xx/s3c2412.c file.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The headers no longer used anywhere now.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The headers can be local in mach-s3c24xx/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The header can be local in mach-s3c24xx/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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This makes the headers local in mach-s3c24xx/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The headers can be local in mach-s3c24xx/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The header can be local in mach-s3c24xx/ and sort out inclusions.
Accordingly, the GTA02_ macro in driver can be replaced.
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The headers can be local in mach-s3c24xx/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The headers can be local in mach-s3c24xx/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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remove <mach/gpio-fns.h>, <mach/gpio-track.h> and <plat/gpio-fns.h>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The <mach/regs-sys.h> can be moved into mach-s5pv210/setup-usb-phy.c
file.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The <mach/s5p64x0-clock.h> can be moved into mach-s5p64x0/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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The <mach/i2c.h> can be moved into mach-s5p64x0/.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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