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2011-10-17ARM: 7017/1: Use generic BUG() handlerSimon Glass
ARM uses its own BUG() handler which makes its output slightly different from other archtectures. One of the problems is that the ARM implementation doesn't report the function with the BUG() in it, but always reports the PC being in __bug(). The generic implementation doesn't have this problem. Currently we get something like: kernel BUG at fs/proc/breakme.c:35! Unable to handle kernel NULL pointer dereference at virtual address 00000000 ... PC is at __bug+0x20/0x2c With this patch it displays: kernel BUG at fs/proc/breakme.c:35! Internal error: Oops - undefined instruction: 0 [#1] PREEMPT SMP ... PC is at write_breakme+0xd0/0x1b4 This implementation uses an undefined instruction to implement BUG, and sets up a bug table containing the relevant information. Many versions of gcc do not support %c properly for ARM (inserting a # when they shouldn't) so we work around this using distasteful macro magic. v1: Initial version to replace existing ARM BUG() implementation with something more similar to other architectures. v2: Add Thumb support, remove backtrace whitespace output changes. Change to use macros instead of requiring the asm %d flag to work (thanks to Dave Martin <dave.martin@linaro.org>) v3: Remove old BUG() implementation in favor of this one. Remove the Backtrace: message (will submit this separately). Use ARM_EXIT_KEEP() so that some architectures can dump exit text at link time thanks to Stephen Boyd <sboyd@codeaurora.org> (although since we always define GENERIC_BUG this might be academic.) Rebase to linux-2.6.git master. v4: Allow BUGS in modules (these were not reported correctly in v3) (thanks to Stephen Boyd <sboyd@codeaurora.org> for suggesting that.) Remove __bug() as this is no longer needed. v5: Add %progbits as the section flags. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Tested-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7102/1: mach-integrator: update defconfigLinus Walleij
Update the Integrator defconfig with some sensible defaults: - Compile a combined image supporting Integrator/AP and Integrator/CP, with the core modules CM720, CM920, CM922, CM926, CM1020, CM1022 and CM1026 in a single image, this works just fine and gives some nice compilation coverage - NOHZ (tickless) and HRTIMERS turned on - Compile using EABI, let's assume recent compilers are used now (tested using GCC 4.4.1) - Remove forced 32MiB at command line, the bootloader usually knows this better, and my U-Boot patches nowadays make that boot loader pass the correct adjusted value - Enable the MTD Physmap flash driver, so that the changes done earlier by Marc Zyngier replacing integrator-flash takes effect - Enable the PL030 RTC driver that has not been default-compiled with any config for a while This has been tested on the real hardware Integrator AP with both an ARM920T and ARM926EJ-S core module. Cc: Marc Zyngier <Marc.Zyngier@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7087/2: mach-integrator: get timer frequency from clockLinus Walleij
We already have a clock definition for the 24MHz clock in the Integrator, use that instead of some unclear defines from the platform.h header. Also delete the senseless comment that the file shouldn't be edited, I just edited it and the world didn't come to an end, so it's obviously false. If anyone still has the mentioned ".s file" and the s2h awk script generating that header, raise your hand (and give me your files). Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7086/2: mach-integrator: modernize clock event registrationLinus Walleij
Drop mult, shift and delta calculations and let the clockevent core scale this as appropriate. Set the minimum interval to 1 rather than 15 (0xf), there is nothing in the data sheets I have indicating that 15 should be some minimum value. Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7085/2: mach-integrator: clockevent supports oneshot modeLinus Walleij
The Integrator AP timer has no problem supporting oneshot ticks with proper code, so let's do it so we can have NOHZ configured in for this platform too. Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7084/1: mach-integrator: retire some timer macrosLinus Walleij
These macros are not used by anything since the switch to generic time in commit b9cedda230793cbf58eb012ddadedd490cc8e129 so let's retire them. Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7078/1: Footbridge: Sort KConfig Options alphabeticallyPeter Hüwe
As per request of rmk, the options should be sorted alphabetically. Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7026/1: simpad: replace ARM specific LED codeJochen Friedrich
Remove the legacy ARM LED code for simpad devices and register a stadard LED platform device using GPIO line instead. Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7025/1: simpad: add GPIO based device definitions.Jochen Friedrich
Register keyboard, polled keyboard and I2C platform devices based on GPIOs. Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7024/1: simpad: Cleanup CS3 accessors.Jochen Friedrich
- prepend CS3 accessors by simpad_ to indicate they are specific to simpad devices. - use spinlock to protect shadow register. - implement 8 read-only pins. - use readl/writel macros so barriers are used where necessary. - register CS3 as GPIO controller with 24 pins (16 output only and 8 input only). - fix PCMCIA driver to access the read-only pins rather than the shadow register for status bits. Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7027/1: simpad: Add ucb1x00 GPIO definitions and register GPIOJochen Friedrich
Add ucb1x00 GPIO definitions to simpad.h and add gpio_base to ucb1x00 platform device so the pins are available using the GPIO API. Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7068/1: process: change from __backtrace to dump_stack in show_regsLaura Abbott
Currently, show_regs calls __backtrace which does nothing if CONFIG_FRAME_POINTER is not set. Switch to dump_stack which handles both CONFIG_FRAME_POINTER and CONFIG_ARM_UNWIND correctly. __backtrace is now superseded by dump_stack in general and show_regs was the last caller so remove __backtrace as well. Signed-off-by: Laura Abbott <lauraa@codeaurora.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7064/1: vexpress: Use wfi macro in platform_do_lowpower.Nick Bowler
Current Versatile Express CPU hotplug code includes a hardcoded WFI instruction, in ARM encoding. When the kernel is compiled in Thumb-2 mode, this is invalid and causes the machine to hang hard when a CPU is offlined. Using the wfi macro (which uses the appropriate assembler mnemonic) causes the correct instruction to be emitted in either case. As a consequence of this change, an apparently vestigial "cc" clobber is dropped from the asm (the macro uses "memory" only). Signed-off-by: Nick Bowler <nbowler@elliptictech.com> Reviewed-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7031/1: entry: Fix Thumb-2 undef handling for multi-CPU kernelsDave Martin
When v6 and >=v7 boards are supported in the same kernel, the __und_usr code currently makes a build-time assumption that Thumb-2 instructions occurring in userspace don't need to be supported. Strictly speaking this is incorrect. This patch fixes the above case by doing a run-time check on the CPU architecture in these cases. This only affects kernels which support v6 and >=v7 CPUs together: plain v6 and plain v7 kernels are unaffected. Signed-off-by: Dave Martin <dave.martin@linaro.org> Reviewed-by: Jon Medhurst <tixy@yxit.co.uk> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7030/1: entry: Remove unnecessary masking when decoding Thumb-2 ↵Dave Martin
instructions When testing whether a Thumb-2 instruction is 32 bits long or not, the masking done in order to test bits 11-15 of the first instruction halfword won't affect the result of the comparison, so remove it. Signed-off-by: Dave Martin <dave.martin@linaro.org> Reviewed-by: Jon Medhurst <tixy@yxit.co.uk> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7029/1: Make cpu_architecture into a global variableDave Martin
The CPU architecture really should not be changing at runtime, so make it a global variable instead of a function. The cpu_architecture() function declared in <asm/system.h> remains the correct way to read this variable from C code. Signed-off-by: Dave Martin <dave.martin@linaro.org> Reviewed-by: Jon Medhurst <tixy@yxit.co.uk> 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>
2011-10-17ARM: 7021/1: Check for multiple load addresses before building a uImageSascha Hauer
uImages need a load address specified. This makes them incompatible with multiple zreladdrs. Catch this error before building an uImage so that we do not end up with broken uImages. The load address can still be specified with LOADADDR= on the command line. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7020/1: Check for multiple zreladdrsSascha Hauer
Without CONFIG_AUTO_ZRELADDR being set the kernel needs a single zreladdr for building zImages. Bail out if we detect multiple zreladdrs without CONFIG_AUTO_ZRELADDR. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7006/1: Migrate to asm-generic wrapper supportStephen Boyd
With d8ecc5c (kbuild: asm-generic support, 2011-04-27) we can remove a handful of asm-generic wrappers in ARM code. Since the generic version of sizes.h doesn't contain SZ_48M, we replace the 4 users of SZ_48M with the equivalent SZ_32M + SZ_16M. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Imre Kaloz <kaloz@openwrt.org> Acked-by: Krzysztof Halasa <khc@pm.waw.pl> Cc: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-10ARM: 7088/1: entry: fix wrong parameter name used in do_thumb_abortJanusz Krzysztofik
Commit be020f8618ca, "ARM: entry: abort-macro: specify registers to be used for macros", while replacing register numbers with macro parameter names, mismatched the name used for r1. For me, this resulted in user space built for EABI with -march=armv4t -mtune=arm920t -mthumb-interwork -mthumb broken on my OMAP1510 based Amstrad Delta (old ABI and no thumb still worked for me though). Fix this by using correct parameter name fsr instead of mismatched psr, used by callers for another purpose. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-07ARM: 7080/1: l2x0: make sure I&D are not locked down on initLinus Walleij
Fighting unfixed U-Boots and other beasts that may the cache in a locked-down state when starting the kernel, we make sure to disable all cache lock-down when initializing the l2x0 so we are in a known state. Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Rabin Vincent <rabin.vincent@stericsson.com> Cc: Adrian Bunk <adrian.bunk@movial.com> Cc: Rob Herring <robherring2@gmail.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reported-by: Jan Rinze <janrinze@gmail.com> Tested-by: Robert Marklund <robert.marklund@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-07ARM: 7081/1: mach-integrator: fix the clocksourceLinus Walleij
I was intrigued by the fact that the clock stood still on the Integrator, but it wasn't strange at all, because the timer was set up all wrong and probably has been for a while. With this patch the clock starts ticking again: make the timer periodic (reload), |= on the divisor bit and load the timer before starting it. Cc: stable@kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-04ARM: 7067/1: mm: keep significant bits in pfn_validMark Rutland
When ARCH_HAS_HOLES_MEMORYMODEL is selected, pfn_valid calls memblock_is_memory to test validity of a pfn: > memblock_is_memory(pfn << PAGE_SHIFT); On LPAE systems this cuts off the top bits, as the shift occurs before the value is promoted to a phys_addr_t. This patch replaces the shift with a call to __pfn_to_phys (which casts pfn to phys_addr_t before shifting), preventing the loss of significant bits. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-29Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm: ARM: pm: avoid writing the auxillary control register for ARMv7 ARM: pm: some ARMv7 requires a dsb in resume to ensure correctness ARM: pm: arm920/926: fix number of registers saved ARM: pm: CPU specific code should not overwrite r1 (v:p offset) ARM: 7066/1: proc-v7: disable SCTLR.TE when disabling MMU ARM: 7065/1: kexec: ensure new kernel is entered in ARM state ARM: 7003/1: vexpress: Add clock definition for the SP805. ARM: 7051/1: cpuimx* boards: fix mach-types errors ARM: 7019/1: Footbridge: select CLKEVT_I8253 for ARCH_NETWINDER ARM: 7015/1: ARM errata: Possible cache data corruption with hit-under-miss enabled ARM: 7014/1: cache-l2x0: Fix L2 Cache size calculation. ARM: 6967/1: ep93xx: ts72xx: fix board model detection ARM: 6965/1: ep93xx: add model detection for ts-7300 and ts-7400 boards ARM: cache: detect VIPT aliasing I-cache on ARMv6 ARM: twd: register clockevents device before enabling PPI ARM: realview: ensure visibility of writes during reset ARM: perf: make name of arm_pmu_type consistent ARM: perf: fix prototype of release_pmu ARM: fix perf build with uclibc toolchains
2011-08-29Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: ARM: mach-footbridge: add missing header file <video/vga.h> ARM: mach-orion5x: add missing header file <linux/vga.h> arm: fix compile failure in orion5x/dns323-setup.c at91: at91sam9261.c: fix typo in t2_clk alias for atmel_tcb.0 ARM: S5P: fix bug in spdif_clk_get_rate ARM: EXYNOS4: Add restart hook for proper reboot ARM: EXYNOS4: Increase reset delay for USB HOST PHY ARM: S5P: add required chained_irq_enter/exit to gpio-int code ARM: EXYNOS4: add required chained_irq_enter/exit to eint code ARM: SAMSUNG: Add chained enrty/exit call to timer interrupt handler ARM: S3C64XX: Fix build break in PM debug ARM: S5PV210: Fix build warning ARM: EXYNOS4: Fix the IRQ definitions for MIPI CSIS device ARM: EXYNOS4: remove duplicated inclusion ARM: EXYNOS4: Fix wrong devname to support clkdev ARM: EXYNOS4: Use the correct regulator names on universal_c210 ARM: SAMSUNG: Fix Section mismatch in samsung_bl_set() ARM: S5P64X0: Replace irq_gc_ack() with irq_gc_ack_set_bit()
2011-08-29Merge branch 'rmobile-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x * 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x: ARM: mach-shmobile: sh7372 CMT3 and CMT4 clock support ARM: mach-shmobile: sh7372 MSIOF clock support ARM: mach-shmobile: clock-sh7372: fixup USB-DMAC1 settings ARM: mach-shmobile: clock-sh73a0: tidyup CKSCR main clock selecter ARM: mach-shmobile: Remove 3DG/SGX from sh7372 INTCS ARM: mach-shmobile: mackerel: Add USB-DMA ID mmc: sdhi, mmcif: zboot: Correct clock disable logic ARM: mach-shmobile: ag5evm: SDHI requires waiting for idle ARM: static should be at beginning of declaration ARM: mach-shmobile: Use CMT2 for timer on sh7372 ARM: mach-shmobile: sh7372: Add USB-DMAC support
2011-08-29ARM: mach-shmobile: sh7372 CMT3 and CMT4 clock supportMagnus Damm
Add clock control support for sh7372 CMT hardware blocks. No upstream sh7372 boards are making use of CMT3 + CMT4, but the sh7372 hardware happens to come out of reset with all CMT MSTP clocks _enabled_, so to save power we need to implement a fix in software to shut down unused clocks. This patch relies on the recently merged 794d78f drivers: sh: late disabling of clocks V2 to make sure the unused clocks get disabled as expected. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29ARM: mach-shmobile: sh7372 MSIOF clock supportMagnus Damm
Add clock control support for sh7372 MSIOF hardware blocks. No upstream sh7372 boards are making use of MSIOF0->2, but the sh7372 hardware happens to come out of reset with all MSIOF MSTP clocks _enabled_, so to save power we need to implement a fix in software to shut down unused clocks. This patch relies on the recently merged 794d78f drivers: sh: late disabling of clocks V2 to make sure the unused clocks get disabled as expected. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29ARM: mach-shmobile: clock-sh7372: fixup USB-DMAC1 settingsKuninori Morimoto
USB-DMAC1 needs SMSTPCR4/MSTP407 controls, not MSTP214 this patch tested on mackerel board Reported-by: Magnus Damm <damm@opensource.se> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29ARM: mach-shmobile: clock-sh73a0: tidyup CKSCR main clock selecterKuninori Morimoto
MAINCKSEL is [29:28], not [27:24] Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29ARM: mach-shmobile: Remove 3DG/SGX from sh7372 INTCSMagnus Damm
This patch removes support for the SGX interrupt source in the sh7372 INTCS controller. The SGX hardware block included in sh7372 is already hooked up to the ARM Cortex-A8 core using the INTCA controller, so SGX users are encouraged to make use of that interrupt source instead. Removing support for the SGX interrupt source in INTCS simplifies the sh7372 power management code by allowing us to assume that only INTCA needs to be powered on to operate the SGX hardware. If the INTCS interrupt source would be kept then the kernel would be forced to deal with additional dependencies that does not follow the regular power domain hiearachy. With this patch in place we can safely power down INTCS while the SGX is operating. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29Merge branch 'rmobile/dma' into rmobile-fixes-for-linusPaul Mundt
2011-08-28Merge branch 'pm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm * 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ARM: mach-shmobile: sh7372 LCDC1 suspend fix V2 (incremental) OMAP: omap_device: only override _noirq methods, not normal suspend/resume PM / Runtime: Correct documentation of pm_runtime_irq_safe() ARM: mach-shmobile: sh7372 LCDC1 suspend fix sh-sci / PM: Use power.irq_safe PM: Use spinlock instead of mutex in clock management functions
2011-08-28ARM: pm: avoid writing the auxillary control register for ARMv7Russell King
For ARMv7 kernels running in the non-secure world, writing to the auxillary control register causes an abort, so we must avoid directly writing the auxillary control register. If the ACR has already been reinitialized by SoC code, don't try to restore it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28ARM: pm: some ARMv7 requires a dsb in resume to ensure correctnessRussell King
Add a dsb after the isb to ensure that the previous writes to the CP15 registers take effect before we enable the MMU. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28ARM: pm: arm920/926: fix number of registers savedRussell King
ARM920 and ARM926 save four registers, not three. Fix the size of the suspend region required. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28ARM: pm: CPU specific code should not overwrite r1 (v:p offset)Russell King
r1 stores the v:p offset from the CPU invariant resume code, and is expected to be preserved by the CPU specific code. Overwriting it is not a good idea. We've managed to get away with it on sa1100 platforms because most happen to have PHYS_OFFSET == PAGE_OFFSET, but that may not be the case depending on kernel configuration. So fix this latent bug. This fixes xsc3 as well which was saving and restoring this register independently. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28ARM: 7066/1: proc-v7: disable SCTLR.TE when disabling MMUWill Deacon
cpu_v7_reset disables the MMU and then branches to the provided address. On Thumb-2 kernels, we should take care to clear the Thumb Exception enable bit in the System Control Register, otherwise this may wreak havok in the code to which we are branching (for example, an ARM kernel image via kexec). Reviewed-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28ARM: 7065/1: kexec: ensure new kernel is entered in ARM stateWill Deacon
Commit 540b5738 ("ARM: 6999/1: head, zImage: Always Enter the kernel in ARM state") mandates that the kernel should be entered in ARM state. If a Thumb-2 kernel kexecs a new kernel image, we need to ensure that we change state when branching to the new code. This patch replaces a mov pc, lr with a bx lr on Thumb-2 kernels so that we transition to ARM state if need be. Reviewed-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-27ARM: mach-shmobile: sh7372 LCDC1 suspend fix V2 (incremental)Magnus Damm
This patch updates the recently submitted "Associate the HDMI clock together with LCDC1 on sh7372" to V2 with the following change: - Use lcdc1_device on AP4EVB to build properly. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-08-26All Arch: remove linkage for sys_nfsservctl system callNeilBrown
The nfsservctl system call is now gone, so we should remove all linkage for it. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-26Merge branch 'at91/fixes' of ↵Arnd Bergmann
git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc into fixes
2011-08-26Merge branch 'fixes' of git://git.jdl.com/software/linux-3.0 into fixesArnd Bergmann
2011-08-25ARM: mach-footbridge: add missing header file <video/vga.h>Bryan Wu
This patch fixes following building error: -- arch/arm/mach-footbridge/dc21285.c: In function 'dc21285_preinit': arch/arm/mach-footbridge/dc21285.c:299:2: error: 'vga_base' undeclared (first use in this function) arch/arm/mach-footbridge/dc21285.c:299:2: note: each undeclared identifier is reported only once for each function it appears in make[1]: *** [arch/arm/mach-footbridge/dc21285.o] Error 1 -- Signed-off-by: Bryan Wu <bryan.wu@canonical.com> Acked-by: Rob Herring <rob.herring@calxeda.com>
2011-08-25ARM: mach-orion5x: add missing header file <linux/vga.h>Bryan Wu
This patch fixed following building error: -- arch/arm/mach-orion5x/pci.c: In function 'orion5x_pci_sys_setup': arch/arm/mach-orion5x/pci.c:563:2: error: 'vga_base' undeclared (first use in this function) arch/arm/mach-orion5x/pci.c:563:2: note: each undeclared identifier is reported only once for each function it appears in make[1]: *** [arch/arm/mach-orion5x/pci.o] Error 1 make[1]: *** Waiting for unfinished jobs.... -- Signed-off-by: Bryan Wu <bryan.wu@canonical.com> Acked-by: Rob Herring <rob.herring@calxeda.com>
2011-08-25arm: fix compile failure in orion5x/dns323-setup.cPaul Gortmaker
Upstream commit d5341942d784134f2997b3ff82cd63cf71d1f932 "PCI: Make the struct pci_dev * argument of pci_fixup_irqs const." leaked an extra "const" into an actual call site (vs a proto/decl) which causes this: arch/arm/mach-orion5x/dns323-setup.c: In function 'dns323_pci_map_irq': arch/arm/mach-orion5x/dns323-setup.c:80: error: expected expression before 'const' arch/arm/mach-orion5x/dns323-setup.c:80: error: too few arguments to function 'orion5x_pci_map_irq' make[3]: *** [arch/arm/mach-orion5x/dns323-setup.o] Error 1 Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Nicolas Pitre <nico@fluxnic.net> Acked-by: Ralf Baechle <ralf@linux-mips.org>
2011-08-25OMAP: omap_device: only override _noirq methods, not normal suspend/resumeKevin Hilman
Commit c03f007a8bf0e092caeb6856a5c8a850df10b974 (OMAP: PM: omap_device: add system PM methods for PM domain handling) mistakenly used SET_SYSTEM_SLEEP_PM_OPS() when trying to configure custom methods for the PM domains noirq methods. Fix that by setting only the suspend_noirq and resume_noirq methods with custom versions. Note that all other PM domain methods (including the "normal" suspend/resume methods) are populated using USE_PLATFORM_PM_SLEEP_OPS, which configures them all to the default subsystem (platform_bus) methods. Reported-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-08-24ARM: mach-shmobile: sh7372 LCDC1 suspend fixMagnus Damm
Associate the HDMI clock together with LCDC1 on sh7372. Without this patch Suspend-to-RAM hangs on the boards AP4EVB and Mackerel. The code hangs in the LCDC driver where the software is waiting forever for the hardware to power down. By explicitly associating the HDMI clock with LCDC1 we can make sure the HDMI clock is enabled using Runtime PM whenever the driver is accessing the hardware. This HDMI and LCDC1 dependency is documented in the sh7372 data sheet. Older kernels did work as expected but the recently merged (3.1-rc) 794d78f drivers: sh: late disabling of clocks V2 introduced code to turn off clocks lacking software reference which happens to include the HDMI clock that is needed by LCDC1 to operate as expected. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-08-24at91: at91sam9261.c: fix typo in t2_clk alias for atmel_tcb.0Jean-Christophe PLAGNIOL-VILLARD
This was a typo in clockdev declaration for at91sam9261 SoC. Fix the kernel hanging when switching clocksource to TC (tcb_clksrc). Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Remy Bohmer <linux@bohmer.net> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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