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2011-11-15ARM: RealView: convert to CONFIG_MULTI_IRQ_HANDLERMarc Zyngier
Convert the RealView platforms to be using the gic_handle_irq function as their primary interrupt handler. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2011-11-01Merge branch 'next/cross-platform' of git://git.linaro.org/people/arnd/arm-socLinus Torvalds
* 'next/cross-platform' of git://git.linaro.org/people/arnd/arm-soc: arm/imx: use Kconfig choice for low-level debug UART selection ARM: realview: use Kconfig choice for debug UART selection ARM: plat-samsung: use Kconfig choice for debug UART selection ARM: versatile: convert logical CPU numbers to physical numbers ARM: ux500: convert logical CPU numbers to physical numbers ARM: shmobile: convert logical CPU numbers to physical numbers ARM: msm: convert logical CPU numbers to physical numbers ARM: exynos4: convert logical CPU numbers to physical numbers Fix up trivial conflict (config DEBUG_S3C_UART move/split vs addition of ARM_KPROBES_TEST option) in arch/arm/Kconfig.debug
2011-10-28Merge branch 'devel-stable' of ↵Linus Torvalds
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'devel-stable' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (178 commits) ARM: 7139/1: fix compilation with CONFIG_ARM_ATAG_DTB_COMPAT and large TEXT_OFFSET ARM: gic, local timers: use the request_percpu_irq() interface ARM: gic: consolidate PPI handling ARM: switch from NO_MACH_MEMORY_H to NEED_MACH_MEMORY_H ARM: mach-s5p64x0: remove mach/memory.h ARM: mach-s3c64xx: remove mach/memory.h ARM: plat-mxc: remove mach/memory.h ARM: mach-prima2: remove mach/memory.h ARM: mach-zynq: remove mach/memory.h ARM: mach-bcmring: remove mach/memory.h ARM: mach-davinci: remove mach/memory.h ARM: mach-pxa: remove mach/memory.h ARM: mach-ixp4xx: remove mach/memory.h ARM: mach-h720x: remove mach/memory.h ARM: mach-vt8500: remove mach/memory.h ARM: mach-s5pc100: remove mach/memory.h ARM: mach-tegra: remove mach/memory.h ARM: plat-tcc: remove mach/memory.h ARM: mach-mmp: remove mach/memory.h ARM: mach-cns3xxx: remove mach/memory.h ... Fix up mostly pretty trivial conflicts in: - arch/arm/Kconfig - arch/arm/include/asm/localtimer.h - arch/arm/kernel/Makefile - arch/arm/mach-shmobile/board-ap4evb.c - arch/arm/mach-u300/core.c - arch/arm/mm/dma-mapping.c - arch/arm/mm/proc-v7.S - arch/arm/plat-omap/Kconfig largely due to some CONFIG option renaming (ie CONFIG_PM_SLEEP -> CONFIG_ARM_CPU_SUSPEND for the arm-specific suspend code etc) and addition of NEED_MACH_MEMORY_H next to HAVE_IDE.
2011-10-27Merge branch 'gpio' of ↵Linus Torvalds
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'gpio' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (43 commits) ARM: 7135/1: ep93xx: bring back missing <mach/gpio.h> ARM: 7104/1: plat-pxa: break out GPIO driver specifics ARM: 7103/1: plat-pxa: move PXA GPIO driver to GPIO subsystem ARM: 7042/3: mach-ep93xx: break out GPIO driver specifics ARM: 7101/1: arm/tegra: Replace <mach/gpio.h> with <mach/gpio-tegra.h> ARM: 7094/1: arm/tegra: Move EN_VDD_1V05_GPIO to board-harmony.h ARM: 7083/1: rewrite U300 GPIO to use gpiolib ARM: 7074/1: gpio: davinci: eliminate unused variable warnings ARM: 7063/1: Orion: gpio: add missing include of linux/types.h ARM: 7055/1: arm/tegra: mach/gpio.h: include linux/types.h to fix build ARM: 7054/1: arm/tegra: Delete custom gpio_to_irq, and irq_to_gpio ARM: 7053/1: gpio/tegra: Implement gpio_chip.to_irq ARM: 7052/1: gpio/tegra: Remove use of irq_to_gpio ARM: 7057/1: mach-pnx4008: rename GPIO header ARM: 7056/1: plat-nomadik: kill off <plat/gpio.h> ARM: 7050/1: mach-sa1100: delete irq_to_gpio() function ARM: 7049/1: mach-sa1100: move SA1100 GPIO driver to GPIO subsystem ARM: 7045/1: mach-lpc32xx: break out GPIO driver specifics ARM: 7044/1: mach-lpc32xx: move LPC32XX GPIO driver to GPIO subsystem ARM: 7043/1: mach-ixp2000: rename GPIO header ... Fix up trivial conflicts in arch/arm/mach-u300/Kconfig manually
2011-10-25Merge branch 'misc' into for-linusRussell King
Conflicts: arch/arm/mach-integrator/integrator_ap.c
2011-10-23Merge branch 'ppi-irq-core-for-rmk' of ↵Russell King
git://github.com/mzyngier/arm-platforms into devel-stable
2011-10-20ARM: smp: fix clipping of number of CPUsRussell King
Rather than clipping the number of CPUs using the compile-time NR_CPUS constant, use the runtime nr_cpu_ids value instead. This allows the nr_cpus command line option to work as expected. Cc: <stable@kernel.org> Reported-by: Mark Salter <msalter@redhat.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-20Merge branches 'cross-platform/debug_ll' and 'cross-platform/cpu-mapping' ↵Arnd Bergmann
into next/cross-platform
2011-10-18Merge branch 'mach_memory_h' of git://git.linaro.org/people/nico/linux into ↵Russell King
devel-stable
2011-10-17ARM: realview: use Kconfig choice for debug UART selectionWill Deacon
Now that the DEBUG_LL UART can be selected by a Kconfig choice, simplify the #ifdefery in debug-macro.S and add entries to the top-level Kconfig.debug instead. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-10-17ARM: versatile: convert logical CPU numbers to physical numbersWill Deacon
This patch uses the new cpu_logical_map() macro for converting logical CPU numbers into physical numbers when dealing with the pen_release variable in the SMP boot and CPU hotplug paths. Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-10-17ARM: 6217/4: mach-realview: expose PB1176 ROM using physmap and map_romLinus Walleij
This exposes the PB1176 ROM if you compile in the MTD physmap mapping and also the map_rom chiptype. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: platform fixups: remove mdesc argument to fixup functionRussell King
Get rid of the mdesc pointer in the fixup function call. No one uses the mdesc pointer, it shouldn't be modified anyway, and we can't wrap it, so let's remove it. Platform files found by: $ regexp=$(git grep -h '\.fixup.*=' arch/arm | sed 's!.*= *\([^,]*\),* *!\1!' | sort -u | tr '\n' '|' | sed 's,|$,,;s,|,\\|,g') $ git grep $regexp arch/arm Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7022/1: allow to detect conflicting zreladdrsSascha Hauer
Boards used to specify zreladdr in their Makefile.boot with zreladdr-y := x, so conflicting zreladdrs were silently overwritten. This patch changes this to zreladdr-y += x, so that we end up with multiple words in zreladdr in such a case. We can detect this later and complain if necessary. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-26ARM: add an extra temp register to the low level debugging addruart macroNicolas Pitre
Some platforms (like OMAP not to name it) are doing rather complicated hacks just to determine the base UART address to use. Let's give their addruart macro some slack by providing an extra work register which will allow for much needed cleanups. This is basically a no-op as this commit is only adding the extra argument to the macro but no one is using it yet. Signed-off-by: nicolas Pitre <nicolas.pitre@linaro.org> Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-09-16Merge branch 'for-rmk' of git://linux-arm.org/linux-2.6-wd into devel-stableRussell King
Conflicts: arch/arm/mach-imx/mach-cpuimx27.c
2011-08-21ARM: mach-realview: convert boot_params to atag_offsetNicolas Pitre
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-08-12ARM: realview: ensure visibility of writes during resetWill Deacon
The various reset routines in mach-realview rely on an FPGA to power-cycle the board after writing some magic runes to memory-mapped registers. This patch adds a dsb() following the writes, so that they become visible before we mdelay(1000) in the arch_reset code. Without this patch, the timeout would expire sporadically, causing the reset to fail. Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-12ARM: gpio: make trivial GPIOLIB implementation the defaultRussell King
Rather than marking the mach/gpio.h header files which want to use the trivial GPIOLIB implementation, mark those which do not want to use it instead. This means that by default, you get the trivial implementation and only have to do something extra if you need to. This should encourage the use of the trivial default implementation. As an additional bonus, several gpio.h header files become empty. Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Tested-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-12ARM: gpio: consolidate gpio_to_irqRussell King
Many of the gpio_to_irq implementations use the gpiolib version of this function. Provide the standard gpiolib gpio_to_irq() for everyone, but allow platforms to override it if they wish. Add the neccessary overrides for those platforms which do not use the standard definition. Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-12ARM: gpio: consolidate trivial gpiolib implementationsRussell King
Consolidate 24 trivial gpiolib implementions out of mach/gpio.h into asm/gpio.h. This is basically the include of asm-generic/gpio.h and the definition of gpio_get_value, gpio_set_value, and gpio_cansleep as described in Documentation/gpio.txt Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Tested-by: David Brown <davidb@codeaurora.org> Acked-by: David Brown <davidb@codeaurora.org> Tested-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-22Merge branch 'devel-stable' into for-nextRussell King
Conflicts: arch/arm/kernel/entry-armv.S
2011-07-18ARM: mach-realview: move from ARM_DMA_ZONE_SIZE to mdesc->dma_zone_sizeNicolas Pitre
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-07-07ARM: 6993/1: platsmp: Allow secondary cpu hotplug with maxcpus=1Stephen Boyd
If an ARM system has multiple cpus in the same socket and the kernel is booted with maxcpus=1, secondary cpus are possible but not present due to how platform_smp_prepare_cpus() is called. Since most typical ARM processors don't actually support physical hotplug, initialize the present map to be equal to the possible map in generic ARM SMP code. Also, always call platform_smp_prepare_cpus() as long as max_cpus is non-zero (0 means no SMP) to allow platform code to do any SMP setup. After applying this patch it's possible to boot an ARM system with maxcpus=1 on the command line and then hotplug in secondary cpus via sysfs. This is more in line with how x86 does things. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: David Brown <davidb@codeaurora.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-06ARM: 6986/1: mach-realview: add TCM support for PB1176Linus Walleij
Enable TCM support on the RealView PB1176 - we have now taken the precautions necessary to support even multi-board builds of RealView systems with TCM enabled. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23Merge branches 'consolidate-clksrc', 'consolidate-flash', ↵Russell King
'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate
2011-05-23clockevents: ARM sp804: allow clockevent name to be specifiedRussell King
This allows platforms to specify the clcokevent name upon registration. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: ARM sp804: obtain sp804 timer rate via clksRussell King
This allows platforms to specify the rate of the SP804 clocksource via the clk subsystem. While ARM boards clock these at 1MHz, BCMRing also has SP804 timers but are clocked at different rates. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: ARM sp804: allow clocksource name to be specifiedRussell King
This allows platforms to specify the clocksource name upon registration, which is necessary should they wish to register more than one sp804 clocksource. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23ARM: consolidate SMP cross call implementationRussell King
Rather than having each platform class provide a mach/smp.h header for smp_cross_call(), arrange for them to register the function with the core ARM SMP code instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-20ARM: 6910/1: MTD: physmap: let set_vpp() pass a platform_device instead of a ↵Marc Zyngier
map_info The set_vpp() method provided by physmap passes a map_info back to the platform code, which has little relevance as far as the platform is concerned (this parameter is completely unused). Instead, pass the platform_device, which can be used in the pismo driver to retrieve some important information in a nicer way, instead of the hack that was in place. The empty set_vpp function in board-at572d940hf_ek.c is left untouched, as the board/SoC is scheduled for removal. Cc: Andrew Victor <linux@maxim.org.za> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Philipp Zabel <philipp.zabel@gmail.com> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-20ARM: 6903/1: Realview: Use physmap driver instead of integrator-flashMarc Zyngier
Tested on a PB11-MPCore. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-12ARM: 6870/1: The mandatory barrier rmb() must be a dsb() in for device accessesCatalin Marinas
Since mandatory barriers may be used (explicitly or implicitly via readl etc.) to ensure the ordering between Device and Normal memory accesses, a DMB is not enough. This patch converts it to a DSB. Cc: Colin Cross <ccross@android.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-12ARM: use ARM_DMA_ZONE_SIZE to adjust the zone sizesRussell King
Rather than each platform providing its own function to adjust the zone sizes, use the new ARM_DMA_ZONE_SIZE definition to perform this adjustment. This ensures that the actual DMA zone size and the ISA_DMA_THRESHOLD/MAX_DMA_ADDRESS definitions are consistent with each other, and moves this complexity out of the platform code. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-12ARM: Replace platform definition of ISA_DMA_THRESHOLD/MAX_DMA_ADDRESSRussell King
The values of ISA_DMA_THRESHOLD and MAX_DMA_ADDRESS are related; one is the physical/bus address, the other is the virtual address. Both need to be kept in step, so rather than having platforms define both, allow them to define a single macro which sets both of these macros appropraitely. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-03-26ARM: 6807/1: realview: Fix secondary GIC initialisation for EB with MPCore tilePawel Moll
The second GIC, present when EB board is used with a MPCore tile, was initialised starting with irq number 64, which made interrupts 64-95 in the primary GIC unusable. Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-03-20Merge branches 'fixes', 'pgt-next' and 'versatile' into develRussell King
2011-03-16Merge branch 'p2v' into develRussell King
Conflicts: arch/arm/kernel/module.c arch/arm/mach-s5pv210/sleep.S
2011-02-19ARM: realview/vexpress: consolidate SMP bringup codeRussell King
Realview and Versatile Express share the same SMP bringup code, so consolidate the two implementations. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-19ARM: realview/vexpress: consolidate localtimer supportRussell King
Realview and Versatile Express local timer support is identical, so consolidate the implementations. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-19ARM: realview: remove old AMBA device DMA definitionsRussell King
The AMBA DMA macro definitions are not used, and the AMBA Primecell DMA support makes no use of them either, so they can be removed. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-19ARM: realview: use new init_early for clock tree and sched_clock initRussell King
Initialize the clock tree and our sched_clock() early. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-19ARM: realview: switch Realview to use consolidated CLCDRussell King
This switches Realview platforms to use the consolidated CLCD panel support, including the display capabilities. As Realview uses a PL111, it can support the full range of pixel formats - 444, 5551, 565 in both RGB and BGR mode. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-17ARM: P2V: avoid initializers and assembly using PHYS_OFFSETRussell King
As PHYS_OFFSET will be becoming a variable, we can't have it used in initializers nor assembly code. Replace those in generic code with a run-time initialization. Replace those in platform code using the individual platform specific PLAT_PHYS_OFFSET. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Acked-by: David Brown <davidb@codeaurora.org> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-17ARM: P2V: separate PHYS_OFFSET from platform definitionsRussell King
This uncouple PHYS_OFFSET from the platform definitions, thereby facilitating run-time computation of the physical memory offset. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Magnus Damm <damm@opensource.se> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Wan ZongShun <mcuos.com@gmail.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Acked-by: Jiandong Zheng <jdzheng@broadcom.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-02ARM: v6k: Realview EB 11MPCore and PB11MPCore use V6K architecture CPUsRussell King
Make Realview EB ARM11MPCore and PB11MPCore select the new V6K CPU option. Tested-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-25ARM: realview: name configuration options after actual board namesRussell King
As no one seems to really know which configuration options tie up with which boards, I thought I'd do some investigation and try to work it out. After discussion with some folk in linaro, I think I have this nailed. The names are updated to use the name on the front of the appropriate board user guide for the various baseboards, which I've taken to be the official name for each board. I haven't significantly updated the descriptions for the tiles as that is even less clear - as far as I can see on ARMs website, there is no Cortex-A9 tile for Realview EB - only ARM11MPCore, ARM1156T2F-S, ARM1176TZF-S and Cortex-R4F. So exactly what this 'Multicore Cortex-A9 Tile' is... Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-25ARM: realview,vexpress: fix section mismatch warning for pen_releaseRussell King
Fix two section mismatch warnings in the platform SMP bringup code for Realview and Versatile Express: WARNING: arch/arm/mach-realview/built-in.o(.text+0x8ac): Section mismatch in reference from the function write_pen_release() to the variable .cpuinit.data:pen_release The function write_pen_release() references the variable __cpuinitdata pen_release. This is often because write_pen_release lacks a __cpuinitdata annotation or the annotation of pen_release is wrong. WARNING: arch/arm/mach-vexpress/built-in.o(.text+0x7b4): Section mismatch in reference from the function write_pen_release() to the variable .cpuinit.data:pen_release The function write_pen_release() references the variable __cpuinitdata pen_release. This is often because write_pen_release lacks a __cpuinitdata annotation or the annotation of pen_release is wrong. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-06Merge branch 'misc' into develRussell King
Conflicts: arch/arm/Kconfig arch/arm/common/Makefile arch/arm/kernel/Makefile arch/arm/kernel/smp.c
2011-01-06Merge branch 'smp' into miscRussell King
Conflicts: arch/arm/kernel/entry-armv.S arch/arm/mm/ioremap.c