The definition
static const char *axxia_dt_match[] __initconst = {
...
defines a changable array of constant strings. That is you must not do:
*axxia_dt_match[0] = 'k';
but
axxia_dt_match[0] = "different string";
is fine. So the annotation __initconst is wrong and yields a compiler
error when other really const variables are added with __initconst.
As the struct machine_desc member dt_compat is declared as
const char *const *dt_compat;
making the arrays const is the better alternative over changing all
annotations to __initdata.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The patch 30058677 "ARM / highbank: add support for pl320 IPC"
added a pl320 IPC specific header file as a generic mailbox.h.
This file has been renamed appropriately to allow the
introduction of the generic mailbox API framework.
Acked-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Mark Brown <broonie@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Since the OPP layer is a kernel library which has been converted to be
directly selectable by its callers rather than user selectable and
requiring architectures to enable it explicitly the ARCH_HAS_OPP symbol
has become redundant and can be removed. Do so.
Signed-off-by: Mark Brown <broonie@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This config exists entirely to hide the cpufreq menu from the
kernel configuration unless a platform has selected it. Nothing
is actually built if this config is 'Y' and it just leads to more
patches that add a select under a platform Kconfig so that some
other CPUfreq option can be chosen. Let's remove the option so
that we can always enable CPUfreq drivers on ARM platforms.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Remove the explicit call to l2x0_of_init(), converting to the generic
infrastructure instead.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Now that highbank uses the write_sec method, we don't need to enable
the L2 cache in SoC specific code; this can be done via the normal
mechanisms in the L2C code.
Checking with Rob Herring:
> > Can we kill the "highbank_smc1(0x102, 0x1);" here? That means
> > l2x0_of_init() will see the L2 cache disabled, and will try to enable
> > it via the write_sec hook, so it should do the right thing.
>
> Yes, that should work. You should be able to just call l2x0_of_init
> unconditionally. The condition was really to just avoid the smc on
> Midway which does get handled on h/w, but not if running virtualized.
So also drop the DT check too. I'm leaving the config check in place
so that if L2 is disabled, the write_sec hook can be optimised away.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
With the write_sec method, we no longer need to override the default L2C
disable method. This can be handled via the write_sec method instead.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
They're u32, they're not unsigned long. The UL suffix is not required
here.
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
All V7 platforms can run SMP kernels, so make CONFIG_SMP visible for V7
multi-platform builds.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Multi-platform requires various kconfig options to be selected, so
platforms don't need to select them individually.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Pull ARM fixes from Russell King:
"Another few fixes for ARM, nothing major here"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 7938/1: OMAP4/highbank: Flush L2 cache before disabling
ARM: 7939/1: traps: fix opcode endianness when read from user memory
ARM: 7937/1: perf_event: Silence sparse warning
ARM: 7934/1: DT/kernel: fix arch_match_cpu_phys_id to avoid erroneous match
Revert "ARM: 7908/1: mm: Fix the arm_dma_limit calculation"
Kexec disables outer cache before jumping to reboot code, but it doesn't
flush it explicitly. Flush is done implicitly inside of l2x0_disable().
But some SoC's override default .disable handler and don't flush cache.
This may lead to a corrupted memory during Kexec reboot on these
platforms.
This patch adds cache flush inside of OMAP4 and Highbank outer_cache.disable()
handlers to make it consistent with default l2x0_disable().
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Graceful reboot and poweroff via IPMI commands to the management
processor don't work. Power and reset keys are events from the
management processor which are generated via IPC messages. Passing
the keys to userspace does not work as neither acpid nor a desktop
environment are present.
This adds a notifier handler for the IPC messages so the kernel can
handle the key events directly and IPMI graceful shutdown will work.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: stable@vger.kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
A first set of batches of fixes for 3.13. The diffstat is large mostly
because we're adding a defconfig for a family that's been lacking it, and
there's some missing clock information added for i.MX and OMAP.
The at91 new code is around dealing with RTC/RTT reset at boot to fix possible
hangs due to pending wakeup interrupts coming in during early boot.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A first set of batches of fixes for 3.13. The diffstat is large
mostly because we're adding a defconfig for a family that's been
lacking it, and there's some missing clock information added for i.MX
and OMAP.
The at91 new code is around dealing with RTC/RTT reset at boot to fix
possible hangs due to pending wakeup interrupts coming in during early
boot"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
ARM: OMAP2+: Fix build for dra7xx without omap4 and 5
ARM: OMAP2+: omap_device: maintain sane runtime pm status around suspend/resume
doc: devicetree: Add bindings documentation for omap-des driver
ARM: dts: doc: Document missing compatible property for omap-sham driver
ARM: OMAP3: Beagle: fix return value check in beagle_opp_init()
ARM: at91: fix hanged boot due to early rtt-interrupt
ARM: at91: fix hanged boot due to early rtc-interrupt
video: exynos_mipi_dsim: Remove unused variable
ARM: highbank: only select errata 764369 if SMP
ARM: sti: only select errata 764369 if SMP
ARM: tegra: init fuse before setting reset handler
ARM: vt8500: add defconfig for v6/v7 chips
ARM: integrator_cp: Set LCD{0,1} enable lines when turning on CLCD
ARM: OMAP: devicetree: fix SPI node compatible property syntax items
pinctrl: single: call pcs_soc->rearm() whenever IRQ mask is changed
ARM: OMAP2+: smsc911x: fix return value check in gpmc_smsc911x_init()
MAINTAINERS: drop discontinued mailing list
ARM: dts: i.MX51: Fix OTG PHY clock
ARM: imx: set up pllv3 POWER and BYPASS sequentially
ARM: imx: pllv3 needs relock in .set_rate() call
...
764369 depends on SMP, so don't select it on !SMP configs.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Pull ARM updates from Russell King:
"Included in this series are:
1. BE8 (modern big endian) changes for ARM from Ben Dooks
2. big.Little support from Nicolas Pitre and Dave Martin
3. support for LPAE systems with all system memory above 4GB
4. Perf updates from Will Deacon
5. Additional prefetching and other performance improvements from Will.
6. Neon-optimised AES implementation fro Ard.
7. A number of smaller fixes scattered around the place.
There is a rather horrid merge conflict in tools/perf - I was never
notified of the conflict because it originally occurred between Will's
tree and other stuff. Consequently I have a resolution which Will
forwarded me, which I'll forward on immediately after sending this
mail.
The other notable thing is I'm expecting some build breakage in the
crypto stuff on ARM only with Ard's AES patches. These were merged
into a stable git branch which others had already pulled, so there's
little I can do about this. The problem is caused because these
patches have a dependency on some code in the crypto git tree - I
tried requesting a branch I can pull to resolve these, and all I got
each time from the crypto people was "we'll revert our patches then"
which would only make things worse since I still don't have the
dependent patches. I've no idea what's going on there or how to
resolve that, and since I can't split these patches from the rest of
this pull request, I'm rather stuck with pushing this as-is or
reverting Ard's patches.
Since it should "come out in the wash" I've left them in - the only
build problems they seem to cause at the moment are with randconfigs,
and since it's a new feature anyway. However, if by -rc1 the
dependencies aren't in, I think it'd be best to revert Ard's patches"
I resolved the perf conflict roughly as per the patch sent by Russell,
but there may be some differences. Any errors are likely mine. Let's
see how the crypto issues work out..
* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (110 commits)
ARM: 7868/1: arm/arm64: remove atomic_clear_mask() in "include/asm/atomic.h"
ARM: 7867/1: include: asm: use 'int' instead of 'unsigned long' for 'oldval' in atomic_cmpxchg().
ARM: 7866/1: include: asm: use 'long long' instead of 'u64' within atomic.h
ARM: 7871/1: amba: Extend number of IRQS
ARM: 7887/1: Don't smp_cross_call() on UP devices in arch_irq_work_raise()
ARM: 7872/1: Support arch_irq_work_raise() via self IPIs
ARM: 7880/1: Clear the IT state independent of the Thumb-2 mode
ARM: 7878/1: nommu: Implement dummy early_paging_init()
ARM: 7876/1: clear Thumb-2 IT state on exception handling
ARM: 7874/2: bL_switcher: Remove cpu_hotplug_driver_{lock,unlock}()
ARM: footbridge: fix build warnings for netwinder
ARM: 7873/1: vfp: clear vfp_current_hw_state for dying cpu
ARM: fix misplaced arch_virt_to_idmap()
ARM: 7848/1: mcpm: Implement cpu_kill() to synchronise on powerdown
ARM: 7847/1: mcpm: Factor out logical-to-physical CPU translation
ARM: 7869/1: remove unused XSCALE_PMU Kconfig param
ARM: 7864/1: Handle 64-bit memory in case of 32-bit phys_addr_t
ARM: 7863/1: Let arm_add_memory() always use 64-bit arguments
ARM: 7862/1: pcpu: replace __get_cpu_var_uses
ARM: 7861/1: cacheflush: consolidate single-CPU ARMv7 cache disabling code
...
New and updated SoC support. Among the things new for this release are:
- More support for the AM33xx platforms from TI
- Tegra 124 support, and some updates to older tegra families as well
- imx cleanups and updates across the board
- A rename of Broadcom's Mobile platforms which were introduced as ARCH_BCM,
and turned out to be too broad a name. New name is ARCH_BCM_MOBILE.
- A whole bunch of updates and fixes for integrator, making the platform code
more modern and switches over to DT-only booting.
- Support for two new Renesas shmobile chipsets. Next up for them is more work
on consolidation instead of introduction of new non-multiplatform SoCs, we're
all looking forward to that!
- Misc cleanups for older Samsung platforms, some Allwinner updates, etc.
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Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform changes from Olof Johansson:
"New and updated SoC support. Among the things new for this release
are:
- More support for the AM33xx platforms from TI
- Tegra 124 support, and some updates to older tegra families as well
- imx cleanups and updates across the board
- A rename of Broadcom's Mobile platforms which were introduced as
ARCH_BCM, and turned out to be too broad a name. New name is
ARCH_BCM_MOBILE.
- A whole bunch of updates and fixes for integrator, making the
platform code more modern and switches over to DT-only booting.
- Support for two new Renesas shmobile chipsets. Next up for them is
more work on consolidation instead of introduction of new
non-multiplatform SoCs, we're all looking forward to that!
- Misc cleanups for older Samsung platforms, some Allwinner updates,
etc"
* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (159 commits)
ARM: bcm281xx: Add ARCH_BCM_MOBILE to bcm config
ARM: bcm_defconfig: Run "make savedefconfig"
ARM: bcm281xx: Add ARCH Timers to config
rename ARCH_BCM to ARCH_BCM_MOBILE (mach-bcm)
ARM: vexpress: Enable platform-specific options in defconfig
ARM: vexpress: Make defconfig work again
ARM: sunxi: remove .init_time hooks
ARM: imx: enable suspend for imx6sl
ARM: imx: ensure dsm_request signal is not asserted when setting LPM
ARM: imx6q: call WB and RBC configuration from imx6q_pm_enter()
ARM: imx6q: move low-power code out of clock driver
ARM: imx: drop extern with function prototypes in common.h
ARM: imx: reset core along with enable/disable operation
ARM: imx: do not return from imx_cpu_die() call
ARM: imx_v6_v7_defconfig: Select CONFIG_PROVE_LOCKING
ARM: imx_v6_v7_defconfig: Enable LEDS_GPIO related options
ARM: mxs_defconfig: Turn off CONFIG_DEBUG_GPIO
ARM: imx: replace imx6q_restart() with mxc_restart()
ARM: mach-imx: mm-imx5: Retrieve iomuxc base address from dt
ARM: mach-imx: mm-imx5: Retrieve tzic base address from dt
...
Merging in dt clock cleanup as a pre-req with some of the later SoC branches.
There are a handful of conflicts here -- some of the already merged SoC
branches should have been based on the cleanup but weren't.
In particular, a remove/add of include on highbank and two remove/remove
conflicts on kirkwood were fixed up.
* cleanup/dt-clock: (28 commits)
ARM: vt8500: remove custom .init_time hook
ARM: vexpress: remove custom .init_time hook
ARM: tegra: remove custom .init_time hook
ARM: sunxi: remove custom .init_time hook
ARM: sti: remove custom .init_time hook
ARM: socfpga: remove custom .init_time hook
ARM: rockchip: remove custom .init_time hook
ARM: prima2: remove custom .init_time hook
ARM: nspire: remove custom .init_time hook
ARM: nomadik: remove custom .init_time hook
ARM: mxs: remove custom .init_time hook
ARM: kirkwood: remove custom .init_time hook
ARM: imx: remove custom .init_time hook
ARM: highbank: remove custom .init_time hook
ARM: exynos: remove custom .init_time hook
ARM: dove: remove custom .init_time hook
ARM: bcm2835: remove custom .init_time hook
ARM: bcm: provide common arch init for DT clocks
ARM: call of_clk_init from default time_init handler
ARM: vt8500: prepare for arch-wide .init_time callback
...
Signed-off-by: Olof Johansson <olof@lixom.net>
Several configurations are selecting errata 798181 without SMP
being selected. This causes a warning from Kconfig:
warning: (ARCH_HIGHBANK && ARCH_KEYSTONE && SOC_OMAP5 && ARCH_TEGRA_114_SOC) selects ARM_ERRATA_798181 which has unmet direct dependencies (CPU_V7 && SMP)
The dependencies are compile time dependencies; select violates these,
resulting in:
arch/arm/kernel/built-in.o: In function `setup_processor':
psci.c:(.init.text+0x808): undefined reference to `erratum_a15_798181_init'
at build time. Fix this by fixing the select statements for Tegra and
Highbank.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Apart from a xgmac driver issue, the highbank seems to work correctly in
big-endian mode. Allow the selection of big-endian in the system.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Acked-by: Rob Herring <rob.herring@calxeda.com>
CLKDEV_LOOKUP selects HAVE_CLK and COMMON_CLK selects CLKDEV_LOOKUP. So
all symbols that select at least two of these symbols can be simplified.
For imx, omap2 and ux500 some rearrangements were necessary before the
simplification.
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
This updates the Calxeda cpuidle driver to use PSCI calls to powergate
cores. This also enables cpuidle for the ECX-2000.
This could possibly become a generic PSCI driver, but there are no other
PSCI users in the kernel other than mach-virt.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-pm@vger.kernel.org
As the ux500 and the kirkwood driver, make the calxeda driver a platform driver
[Compiled only]
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks. Highbank clock provider need a reference
to system registers, as a workaround current clk driver maps those
independent of arch code now.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
These are changes that arrived a little late before the merge window,
or had dependencies on previous branches.
Highlights:
- ux500: misc. cleanup, fixup I2C devices
- exynos: DT updates for RTC; PM updates
- at91: DT updates for NAND; new platforms added to generic defconfig
- sunxi: DT updates: cubieboard2, pinctrl driver, gated clocks
- highbank: LPAE fixes, select necessary ARM errata
- omap: PM fixes and improvements; OMAP5 mailbox support
- omap: basic support for new DRA7xx SoCs
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Merge tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late changes from Kevin Hilman:
"These are changes that arrived a little late before the merge window,
or had dependencies on previous branches.
Highlights:
- ux500: misc. cleanup, fixup I2C devices
- exynos: DT updates for RTC; PM updates
- at91: DT updates for NAND; new platforms added to generic defconfig
- sunxi: DT updates: cubieboard2, pinctrl driver, gated clocks
- highbank: LPAE fixes, select necessary ARM errata
- omap: PM fixes and improvements; OMAP5 mailbox support
- omap: basic support for new DRA7xx SoCs"
* tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (60 commits)
ARM: dts: vexpress: Add CCI node to TC2 device-tree
ARM: EXYNOS: Skip C1 cpuidle state for exynos5440
ARM: EXYNOS: always enable PM domains support for EXYNOS4X12
ARM: highbank: clean-up some unused includes
ARM: sun7i: Enable the A20 clocks in the DTSI
ARM: sun6i: Enable clock support in the DTSI
ARM: sun5i: dt: Use the A10s gates in the DTSI
ARM: at91: at91_dt_defconfig: enable rm9200 support
ARM: dts: add ADC device tree node for exynos5420/5250
ARM: dts: Add RTC DT node to Exynos5420 SoC
ARM: dts: Update the "status" property of RTC DT node for Exynos5250 SoC
ARM: dts: Fix the RTC DT node name for Exynos5250
irqchip: mmp: avoid to include irqs head file
ARM: mmp: avoid to include head file in mach-mmp
irqchip: mmp: support irqchip
irqchip: move mmp irq driver
ARM: OMAP: AM33xx: clock: Add RNG clock data
ARM: OMAP: TI81XX: add always-on powerdomain for TI81XX
ARM: OMAP4: clock: Lock PLLs in the right sequence
ARM: OMAP: AM33XX: hwmod: Add hwmod data for debugSS
...
While Midway firmware handles L2 smc calls as nops, the custom smc calls
present a problem when running virtualized Midway guest. They aren't
needed so just avoid calling them.
In the process, cleanup the L2X0 ifdefs and use IS_ENABLED instead.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Ensure necessary errata work-arounds are always enabled for Highbank
and Midway platforms. Highbank requires 764369 and 764369. Midway requires
798181, but only the first half of the work-around (no IPI). Support for
skipping the IPI is introduced in another commit.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
On Midway, the first 4G of memory starts at 0 and the rest of memory
(4GB+) starts at 0x2_00000000, so we need to enable pfn_valid checks
by selecting ARCH_HAS_HOLES_MEMORYMODEL.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Some devices are restricted to 32-bit DMA. Thus the platform dma_zone_size
needs to be set. Otherwise dma-mapping code is complaining, e.g.
calxedaxgmac fff50000.ethernet: coherent DMA mask 0xffffffff is smaller
than system GFP_DMA mask 0xffffffffffffffff
Signed-off-by: Andreas Herrmann <andreas.herrmann@calxeda.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
series involve following modifications:
1) fixing up few things in samsung_pwm_timer clocksource driver,
2) moving remaining Samsung platforms to the new clocksource driver,
3) removing old clocksource driver,
4) adding new multiplatform- and DT-aware PWM driver,
5) moving all Samsung platforms to use the new PWM driver,
6) removing old PWM driver,
7) removing all PWM-related code that is not used anymore.
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Merge tag 'v3.12-pwm-cleanup-for-olof' of git://github.com/tom3q/linux into next/cleanup
From Tomasz Figa:
Here is the Samsung PWM cleanup series. Particular patches of the series
involve following modifications:
- fixing up few things in samsung_pwm_timer clocksource driver,
- moving remaining Samsung platforms to the new clocksource driver,
- removing old clocksource driver,
- adding new multiplatform- and DT-aware PWM driver,
- moving all Samsung platforms to use the new PWM driver,
- removing old PWM driver,
- removing all PWM-related code that is not used anymore.
* tag 'v3.12-pwm-cleanup-for-olof' of git://github.com/tom3q/linux: (684 commits)
ARM: SAMSUNG: Remove plat/regs-timer.h header
ARM: SAMSUNG: Remove remaining uses of plat/regs-timer.h header
ARM: SAMSUNG: Remove pwm-clock infrastructure
ARM: SAMSUNG: Remove old PWM timer platform devices
pwm: Remove superseded pwm-samsung-legacy driver
ARM: SAMSUNG: Modify board files to use new PWM platform device
ARM: SAMSUNG: Rework private data handling in dev-backlight
pwm: Add new pwm-samsung driver
pwm: samsung: Rename to pwm-samsung-legacy
ARM: SAMSUNG: Remove unused PWM timer IRQ chip code
ARM: SAMSUNG: Remove old samsung-time driver
ARM: SAMSUNG: Move all platforms to new clocksource driver
ARM: SAMSUNG: Set PWM platform data
ARM: SAMSUNG: Add new PWM platform device
ARM: SAMSUNG: Unify base address definitions of timer block
clocksource: samsung_pwm_timer: Handle suspend/resume correctly
clocksource: samsung_pwm_timer: Do not use clocksource_mmio
clocksource: samsung_pwm_timer: Cache clocksource register address
clocksource: samsung_pwm_timer: Correct definition of AUTORELOAD bit
clocksource: samsung_pwm_timer: Do not request PWM mem region
+ v3.11-rc4
Conflicts:
arch/arm/Kconfig.debug
Signed-off-by: Olof Johansson <olof@lixom.net>
timer API entirely. Doing so will reduce code in ARM core, reduce the
architecture dependencies of our timer drivers, and simplify the code because
we no longer go through an architecture layer that is essentially a hotplug
notifier.
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Merge tag 'remove-local-timers' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into next/cleanup
From Stephen Boyd:
Now that we have a generic arch hook for broadcast we can remove the
local timer API entirely. Doing so will reduce code in ARM core, reduce
the architecture dependencies of our timer drivers, and simplify the code
because we no longer go through an architecture layer that is essentially
a hotplug notifier.
* tag 'remove-local-timers' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm:
ARM: smp: Remove local timer API
clocksource: time-armada-370-xp: Divorce from local timer API
clocksource: time-armada-370-xp: Fix sparse warning
ARM: msm: Divorce msm_timer from local timer API
ARM: PRIMA2: Divorce timer-marco from local timer API
ARM: EXYNOS4: Divorce mct from local timer API
ARM: OMAP2+: Divorce from local timer API
ARM: smp_twd: Divorce smp_twd from local timer API
ARM: smp: Remove duplicate dummy timer implementation
Resolved a large number of conflicts due to __cpuinit cleanups, etc.
Signed-off-by: Olof Johansson <olof@lixom.net>
Midway adds new register fields to the coherency control registers, so
writing absolute values will break on Midway. Change the register
accesses to only modify the necessary and common fields in order to
support both Midway and Highbank.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications. For example, the fix in
commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.
After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out. Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.
Note that some harmless section mismatch warnings may result, since
notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c)
and are flagged as __cpuinit -- so if we remove the __cpuinit from
the arch specific callers, we will also get section mismatch warnings.
As an intermediate step, we intend to turn the linux/init.h cpuinit
related content into no-ops as early as possible, since that will get
rid of these warnings. In any case, they are temporary and harmless.
This removes all the ARM uses of the __cpuinit macros from C code,
and all __CPUINIT from assembly code. It also had two ".previous"
section statements that were paired off against __CPUINIT
(aka .section ".cpuinit.text") that also get removed here.
[1] https://lkml.org/lkml/2013/5/20/589
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Preparing to move the parsing of reboot= to generic kernel code forces
the change in reboot_mode handling to use the enum.
[akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c]
Signed-off-by: Robin Holt <holt@sgi.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Separate the smp_twd timers from the local timer API. This will
allow us to remove ARM local timer support in the near future and
gets us closer to moving this driver to drivers/clocksource.
Tested-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Now that the ARM core code calls debug_ll_io_init, we can remove it from
the machine_desc declaration.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
These are cleanups and smaller changes that either depend on earlier
feature branches or came in late during the development cycle.
We normally try to get all cleanups early, so these are the exceptions:
- A follow-up on the clocksource reworks, hopefully the last time
we need to merge clocksource subsystem changes through arm-soc.
A first set of patches was part of the original 3.10 arm-soc cleanup
series because of interdependencies with timer drivers now moved out
of arch/arm.
- Migrating the SPEAr13xx platform away from using auxdata for DMA
channel descriptions towards using information in device tree,
based on the earlier SPEAr multiplatform series
- A few follow-ups on the Atmel SAMA5 support and other changes
for Atmel at91 based on the larger at91 reworks.
- Moving the armada irqchip implementation to drivers/irqchip
- Several OMAP cleanups following up on the larger series already
merged in 3.10.
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Merge tag 'cleanup-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late cleanups from Arnd Bergmann:
"These are cleanups and smaller changes that either depend on earlier
feature branches or came in late during the development cycle. We
normally try to get all cleanups early, so these are the exceptions:
- A follow-up on the clocksource reworks, hopefully the last time we
need to merge clocksource subsystem changes through arm-soc.
A first set of patches was part of the original 3.10 arm-soc
cleanup series because of interdependencies with timer drivers now
moved out of arch/arm.
- Migrating the SPEAr13xx platform away from using auxdata for DMA
channel descriptions towards using information in device tree,
based on the earlier SPEAr multiplatform series
- A few follow-ups on the Atmel SAMA5 support and other changes for
Atmel at91 based on the larger at91 reworks.
- Moving the armada irqchip implementation to drivers/irqchip
- Several OMAP cleanups following up on the larger series already
merged in 3.10."
* tag 'cleanup-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (50 commits)
ARM: OMAP4: change the device names in usb_bind_phy
ARM: OMAP2+: Fix mismerge for timer.c between ff931c82 and da4a686a
ARM: SPEAr: conditionalize SMP code
ARM: arch_timer: Silence debug preempt warnings
ARM: OMAP: remove unused variable
serial: amba-pl011: fix !CONFIG_DMA_ENGINE case
ata: arasan: remove the need for platform_data
ARM: at91/sama5d34ek.dts: remove not needed compatibility string
ARM: at91: dts: add MCI DMA support
ARM: at91: dts: add i2c dma support
ARM: at91: dts: set #dma-cells to the correct value
ARM: at91: suspend both memory controllers on at91sam9263
irqchip: armada-370-xp: slightly cleanup irq controller driver
irqchip: armada-370-xp: move IRQ handler to avoid forward declaration
irqchip: move IRQ driver for Armada 370/XP
ARM: mvebu: move L2 cache initialization in init_early()
devtree: add binding documentation for sp804
ARM: integrator-cp: convert use CLKSRC_OF for timer init
ARM: versatile: use OF init for sp804 timer
ARM: versatile: add versatile dtbs to dtbs target
...
Pull ARM updates from Russell King:
"The major items included in here are:
- MCPM, multi-cluster power management, part of the infrastructure
required for ARMs big.LITTLE support.
- A rework of the ARM KVM code to allow re-use by ARM64.
- Error handling cleanups of the IS_ERR_OR_NULL() madness and fixes
of that stuff for arch/arm
- Preparatory patches for Cortex-M3 support from Uwe Kleine-König.
There is also a set of three patches in here from Hugh/Catalin to
address freeing of inappropriate page tables on LPAE. You already
have these from akpm, but they were already part of my tree at the
time he sent them, so unfortunately they'll end up with duplicate
commits"
* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (77 commits)
ARM: EXYNOS: remove unnecessary use of IS_ERR_VALUE()
ARM: IMX: remove unnecessary use of IS_ERR_VALUE()
ARM: OMAP: use consistent error checking
ARM: cleanup: OMAP hwmod error checking
ARM: 7709/1: mcpm: Add explicit AFLAGS to support v6/v7 multiplatform kernels
ARM: 7700/2: Make cpu_init() notrace
ARM: 7702/1: Set the page table freeing ceiling to TASK_SIZE
ARM: 7701/1: mm: Allow arch code to control the user page table ceiling
ARM: 7703/1: Disable preemption in broadcast_tlb*_a15_erratum()
ARM: mcpm: provide an interface to set the SMP ops at run time
ARM: mcpm: generic SMP secondary bringup and hotplug support
ARM: mcpm_head.S: vlock-based first man election
ARM: mcpm: Add baremetal voting mutexes
ARM: mcpm: introduce helpers for platform coherency exit/setup
ARM: mcpm: introduce the CPU/cluster power API
ARM: multi-cluster PM: secondary kernel entry code
ARM: cacheflush: add synchronization helpers for mixed cache state accesses
ARM: cpu hotplug: remove majority of cache flushing from platforms
ARM: smp: flush L1 cache in cpu_die()
ARM: tegra: remove tegra specific cpu_disable()
...
This is to fix a merge problem with mach-highbank/hotplug.c, which git
silently resolves, but wrongly. This commit contains the correct
resolution.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
More multiplatform enablement for ARM platforms. The ones converted in
this branch are:
- bcm2835
- cns3xxx
- sirf
- nomadik
- msx
- spear
- tegra
- ux500
We're getting close to having most of them converted!
One of the larger platforms remaining is Samsung Exynos, and there are
a bunch of supporting patches in this merge window for it. There was a
patch in this branch to a early version of multiplatform conversion,
but it ended up being reverted due to need of more bake time. The
revert commit is part of the branch since it would have required
rebasing multiple dependent branches and they were stable by then.
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Merge tag 'multiplatform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC multiplatform updates from Olof Johansson:
"More multiplatform enablement for ARM platforms. The ones converted
in this branch are:
- bcm2835
- cns3xxx
- sirf
- nomadik
- msx
- spear
- tegra
- ux500
We're getting close to having most of them converted!
One of the larger platforms remaining is Samsung Exynos, and there are
a bunch of supporting patches in this merge window for it. There was
a patch in this branch to a early version of multiplatform conversion,
but it ended up being reverted due to need of more bake time. The
revert commit is part of the branch since it would have required
rebasing multiple dependent branches and they were stable by then"
* tag 'multiplatform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (70 commits)
mmc: sdhci-s3c: Fix operation on non-single image Samsung platforms
clocksource: nomadik-mtu: fix up clocksource/timer
Revert "ARM: exynos: enable multiplatform support"
ARM: SPEAr13xx: Fix typo "ARCH_HAVE_CPUFREQ"
ARM: exynos: enable multiplatform support
rtc: s3c: make header file local
mtd: onenand/samsung: make regs-onenand.h file local
thermal/exynos: remove unnecessary header inclusions
mmc: sdhci-s3c: remove platform dependencies
ARM: samsung: move mfc device definition to s5p-dev-mfc.c
ARM: exynos: move debug-macro.S to include/debug/
ARM: exynos: prepare for sparse IRQ
ARM: exynos: introduce EXYNOS_ATAGS symbol
ARM: tegra: build assembly files with -march=armv7-a
ARM: Push selects for TWD/SCU into machine entries
ARM: ux500: build hotplug.o for ARMv7-a
ARM: ux500: move to multiplatform
ARM: ux500: make remaining headers local
ARM: ux500: make irqs.h local to platform
ARM: ux500: get rid of <mach/[hardware|db8500-regs].h>
...
Merging in fixes since there's a conflict in the omap4 clock tables caused by
it.
* fixes: (245 commits)
ARM: highbank: fix cache flush ordering for cpu hotplug
ARM: OMAP4: hwmod data: make 'ocp2scp_usb_phy_phy_48m" as the main clock
arm: mvebu: Fix the irq map function in SMP mode
Fix GE0/GE1 init on ix2-200 as GE0 has no PHY
ARM: S3C24XX: Fix interrupt pending register offset of the EINT controller
ARM: S3C24XX: Correct NR_IRQS definition for s3c2440
ARM i.MX6: Fix ldb_di clock selection
ARM: imx: provide twd clock lookup from device tree
ARM: imx35 Bugfix admux clock
ARM: clk-imx35: Bugfix iomux clock
+ Linux 3.9-rc6
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm/mach-omap2/cclock44xx_data.c
Remove the majority of cache flushing calls from the individual platform
files. This is now handled by the core code.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The L1 data cache flush needs to be after highbank_set_cpu_jump call which
pollutes the cache with the l2x0_lock. This causes other cores to deadlock
waiting for the l2x0_lock. Moving the flush of the entire data cache after
highbank_set_cpu_jump fixes the problem. Use flush_cache_louis instead of
flush_cache_all are that is sufficient to flush only the L1 data cache.
flush_cache_louis did not exist when highbank_cpu_die was originally
written.
With PL310 errata 769419 enabled, a wmb is inserted into idle which takes
the l2x0_lock. This makes the problem much more easily hit and causes
reset to hang.
Reported-by: Paolo Pisati <p.pisati@gmail.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This converts arm and arm64 to use CLKSRC_OF DT based initialization for
the arch timer. A new function arch_timer_arch_init is added to allow for
arch specific setup.
This has a side effect of enabling sched_clock on omap5 and exynos5. There
should not be any reason not to use the arch timers for sched_clock.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
The TWD and SCU configs are selected by default as long as
MSM_SCORPIONMP is false and/or MCT is false. Implementing the
logic this way certainly saves lines in the Kconfig but it
precludes those machines which select MSM_SCORPIONMP or MCT from
participating in the single zImage effort because when those
machines are combined with other SMP capable machines the TWD and
SCU are no longer selected by default.
Push the select out to the machine entries so that we can compile
these machines together and still select the appropriate configs.
Cc: Barry Song <baohua.song@csr.com>
Acked-by: David Brown <davidb@codeaurora.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Simon Horman <horms@verge.net.au>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Tony Lindgren <tony@atomide.com>
Acked-by: Viresh Kumar <viresh.linux@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
