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2010-10-04ARM: 6416/1: errata: faulty hazard checking in the Store Buffer may lead to ↵Will Deacon
data corruption On the r2p0, r2p1 and r2p2 versions of the Cortex-A9, data corruption can occur under very rare conditions due to a store buffer optimisation. This workaround sets a bit in the diagnostic register of the Cortex-A9, disabling the optimisation and preventing the problem from occurring. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-09-19ARM: 6400/1: at91: fix arch_gettimeoffset falloutPeter Korsgaard
5cfc8ee0bb51 (ARM: convert arm to arch_gettimeoffset()) marked all of at91 AND at91x40 as needing ARCH_USES_GETTIMEOFFSET, and hence no high res timer support / accurate clock_gettime() - But only at91x40 needs it. Cc: stable@kernel.org Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com> Acked-by: John Stultz <johnstul@us.ibm.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-09-17ARM: 6389/1: errata: incorrect hazard handling in the SCU may lead to data ↵Will Deacon
corruption On the r2p0, r2p1 and r2p2 versions of the Cortex-A9, data corruption can occur if a shared cache line is replaced on one CPU as another CPU is accessing it. This workaround sets two bits in the diagnostic register of the Cortex-A9, reducing the linefill issuing capabilities of the processor and avoiding the erroneous behaviour. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-09-17ARM: 6388/1: errata: DMB operation may be faultyWill Deacon
On versions of the Cortex-A9 up to and including r2p2, under rare circumstances, a DMB instruction between 2 write operations may not ensure the correct visibility ordering of the 2 writes. This workaround sets a bit in the diagnostic register of the Cortex-A9, causing the DMB instruction to behave like a DSB, which functions correctly on the affected cores. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-09-09ARM: Partially revert "Auto calculate ZRELADDR and provide option for ↵Russell King
exceptions" Partially revert e69edc7, which introduced automatic zreladdr support. The change in the way the manual definition is defined seems to be error and conflict prone. Go back to the original way we were handling this for the time being, while keeping the automatic zreladdr facility. Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-09-01[ARM] tegra: Add ZRELADDR default for ARCH_TEGRAErik Gilling
fixes the warning: .config:369:warning: symbol value '' invalid for ZRELADDR and the prompt for ZRELADDR on make Signed-off-by: Erik Gilling <konkers@android.com>
2010-08-27ARM: S5PV310: Fix on default ZRELADDR of ARCH_S5PV310Kukjin Kim
This patch adds default zreladdr of ARCH_S5PV310. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-08-10Merge branches 'master' and 'devel' into for-linusRussell King
Conflicts: arch/arm/Kconfig arch/arm/mm/Kconfig
2010-08-10ARM: 6321/1: fix syntax error in main Kconfig fileUwe Kleine-König
This fixes: scripts/kconfig/mconf arch/arm/Kconfig arch/arm/Kconfig:1187: invalid option make[1]: *** [menuconfig] Error 1 make: *** [menuconfig] Error 2 which was introduced by 1cea732 ([ARM] tegra: SMP support) Cc: Tanmay Upadhyay <tanmay.upadhyay@einfochips.com> Cc: xsecute@googlemail.com Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Colin Cross <ccross@android.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-08-10ARM: 6299/1: errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a ↵Will Deacon
faulty ASID On versions of the Cortex-A9 prior to r2p0, performing TLB invalidations by ASID match can result in the incorrect ASID being broadcast to other CPUs. As a consequence of this, the targetted TLB entries are not invalidated across the system. This workaround changes the TLB flushing routines to invalidate entries regardless of the ASID. Cc: <stable@kernel.org> Tested-by: Rob Clark <rob@ti.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-08-09Merge branch 'for-rmk' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable Conflicts: arch/arm/Kconfig
2010-08-08Merge branch 'for-linus' of git://android.kernel.org/kernel/tegraLinus Torvalds
* 'for-linus' of git://android.kernel.org/kernel/tegra: [ARM] tegra: add MAINTAINERS entry [ARM] tegra: harmony: Add harmony board file [ARM] tegra: add pinmux support [ARM] tegra: add GPIO support [ARM] tegra: Add timer support [ARM] tegra: SMP support [ARM] tegra: Add clock support [ARM] tegra: Add IRQ support [ARM] tegra: initial tegra support
2010-08-06Merge branch 'timers-timekeeping-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-timekeeping-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: um: Fix read_persistent_clock fallout kgdb: Do not access xtime directly powerpc: Clean up obsolete code relating to decrementer and timebase powerpc: Rework VDSO gettimeofday to prevent time going backwards clocksource: Add __clocksource_updatefreq_hz/khz methods x86: Convert common clocksources to use clocksource_register_hz/khz timekeeping: Make xtime and wall_to_monotonic static hrtimer: Cleanup direct access to wall_to_monotonic um: Convert to use read_persistent_clock timkeeping: Fix update_vsyscall to provide wall_to_monotonic offset powerpc: Cleanup xtime usage powerpc: Simplify update_vsyscall time: Kill off CONFIG_GENERIC_TIME time: Implement timespec_add x86: Fix vtime/file timestamp inconsistencies Trivial conflicts in Documentation/feature-removal-schedule.txt Much less trivial conflicts in arch/powerpc/kernel/time.c resolved as per Thomas' earlier merge commit 47916be4e28c ("Merge branch 'powerpc.cherry-picks' into timers/clocksource")
2010-08-06Merge branch 'next-samsung' into for-nextKukjin Kim
Conflicts: arch/arm/mach-s5p6440/Kconfig arch/arm/mach-s5p6442/Kconfig arch/arm/mach-s5pc100/Kconfig arch/arm/mach-s5pv210/Kconfig arch/arm/mach-s5pv210/cpu.c arch/arm/plat-samsung/include/plat/sdhci.h
2010-08-06ARM: SAMSUNG: Make WDT driver dependency SoC specific instead of machine ↵Banajit Goswami
specific This patch moves the dependency of watchdog timer driver from MACH_XXX(board) to ARCH_XXX(SoC). This will enable all machines using Samsung S3C64XX and S5P SoCs to use the WDT driver by default. Signed-off-by: Banajit Goswami <banajit.g@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Conflicts: arch/arm/Kconfig arch/arm/mach-s3c64xx/Kconfig arch/arm/mach-s5p6442/Kconfig arch/arm/mach-s5pc100/Kconfig
2010-08-05[ARM] tegra: SMP supportColin Cross
Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: Erik Gilling <konkers@android.com>
2010-08-05[ARM] tegra: Add clock supportColin Cross
v2: fixes from Russell King: - include linux/io.h instead of asm/io.h - fix whitespace in Kconfig - Use spin_lock_init to initialize lock - Return -ENOSYS instead of BUG for unimplemented clock ops - Use proper return values in tegra2 clock ops additional changes: - Rename some clocks to match dev_ids - add rate propagation - add debugfs entries - add support for clock listed in clk_lookup under multiple dev_ids v3: - Replace per-clock locking with global clock lock - Autodetect clock state on init - Let clock dividers pick next lower possible frequency - Add support for clock init tables - Minor bug fixes - Fix checkpatch issues Signed-off-by: Colin Cross <ccross@android.com>
2010-08-05[ARM] tegra: initial tegra supportErik Gilling
v2: Fixes from Mike Rapoport - remove unused header files (mach/dma.h and mach/nand.h) - remove tegra 1 references from Makefile.boot v2: fixes from Russell King - remove mach/io.h include from mach/iomap.h - fix whitespace in Kconfig v2: from Colin Cross - fix invalid immediate in debug-macro.S v3: - allow selection of multiple boards Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: Erik Gilling <konkers@android.com>
2010-08-05ARM: SAMSUNG: i2c/busses: Add HAVE_S3C2410_I2C option to include I2C for ↵Naveen Krishna Ch
Samsung SoCs This patch adds HAVE_S3C2410_I2C to control inclusion of I2C bus driver on Samsung SoCs and makes I2C bus driver dependency SoC specific instead of machine specific. This will enalbe all machines using Samsung ARCH_S3C2410, _S3C64XX, _S5P6440, _S5PC100, and _S5PV210 to select the I2C driver by default Signed-off-by: Naveen Krishna Ch <ch.naveen@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org>
2010-08-05ARM: SAMSUNG: Make RTC driver dependency SoC specific instead of machine ↵Atul Dahiya
specific This patch moves the dependency of RTC driver from MACH_XXX(board) to ARCH_XXX(SoC). This will enable all machines using Samsung S5P6440, S5PC100 and S5PV210 SoCs to use RTC driver by default. Signed-off-by: Atul Dahiya <atul.dahiya@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-08-05ARM: S5PV310: Add new Kconfig and MakefilesChanghwan Youn
This patch adds the Kconfig and Makefile for the new S5PV310 SoC. It also updates arch/arm Kconfig, Makefile and arch/arm/mm/Kconfig to include support for the new S5PV310. Signed-off-by: Changhwan Youn <chaos.youn@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-07-31Merge branch 'devel-stable' into develRussell King
Conflicts: arch/arm/kernel/entry-armv.S arch/arm/kernel/setup.c arch/arm/mm/init.c
2010-07-31Merge branch 'misc' into develRussell King
Conflicts: arch/arm/mm/init.c
2010-07-31Merge branches 'at91', 'ep93xx', 'kexec', 'iop', 'lmb', 'nomadik', 'nuc', ↵Russell King
'pl', 'spear' and 'versatile' into devel
2010-07-31Merge branch 'shmobile' into develRussell King
2010-07-29ARM: 6277/1: mach-shmobile: Allow users to select HZ, default to 128Magnus Damm
Introduce SHMOBILE_TIMER_HZ for SH-Mobile. Allow users to select HZ on their system to minimize potential timer drift. Use 128 Hz as default to work well with the 32768 Hz RCLK. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-29Merge branch 'arm/booting' of git://git.pengutronix.de/git/ukl/linux-2.6 ↵Russell King
into devel-stable Conflicts: arch/arm/Kconfig
2010-07-29Merge branch 'wells/lpc32xx-arch_v2' of git://git.lpclinux.com/linux-2.6-lpc ↵Russell King
into devel-stable
2010-07-27ARM: Add support for the LPC32XX archKevin Wells
Add LPC32XX support in arch/arm/Kconfig and arch/arm/Makefile Signed-off-by: Kevin Wells <wellsk40@gmail.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-07-27time: Kill off CONFIG_GENERIC_TIMEJohn Stultz
Now that all arches have been converted over to use generic time via clocksources or arch_gettimeoffset(), we can remove the GENERIC_TIME config option and simplify the generic code. Signed-off-by: John Stultz <johnstul@us.ibm.com> LKML-Reference: <1279068988-21864-4-git-send-email-johnstul@us.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2010-07-27ARM: SMP: Always enable clock event broadcast supportRussell King
The TWD local timers are unable to wake up the CPU when it is placed into a low power mode, eg. C3. Therefore, we need to adapt things such that the TWD code can cope with this. We do this by always providing a broadcast tick function, and marking the fact that the TWD local timer will stop in low power modes. This means that when the CPU is placed into a low power mode, the core timer code marks this fact, and allows an IPI to be given to the core. Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Thomas Gleixner <tglx@linutronix.de>
2010-07-27ARM: 6251/1: Make SPARSE_IRQ a hidden optioneric miao
SPARSE_IRQ doesn't need to be a visible option, only those platforms supporting that will select it. Signed-off-by: Eric Miao <eric.miao@canonical.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-27Merge branch 'origin' into miscRussell King
2010-07-27ARM: initial LMB trialRussell King
Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-22Merge branch 'master' of git://git.infradead.org/users/cbou/linux-cns3xxx ↵Russell King
into devel-stable
2010-07-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/nico/orion into devel-stableRussell King
2010-07-16Merge branch 'l7200' into develRussell King
Conflicts: arch/arm/configs/lusl7200_defconfig
2010-07-16ARM: Remove DISCONTIGMEM supportRussell King
Everything should now be using sparsemem rather than discontigmem, so remove the code supporting discontigmem from ARM. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-12ARM: Auto calculate ZRELADDR and provide option for exceptionsEric Miao
As long as the zImage is placed within the 128MB range from the start of memory, ZRELADDR (Address where the decompressed kernel will be placed, usually == PHYS_OFFSET + TEXT_OFFSET) can be determined at run-time by masking PC with 0xf80000000. Running through all the Makefile.boot, all those zreladdr-y addresses == 0x[0-f][08]00_0000 + TEXT_OFFSET can be determined at run-time. Option CONFIG_AUTO_ZRELADDR and CONFIG_ZRELADDR are introduced, CONFIG_ZRELADDR _must_ be explicitly specified if: - ((zreladdr-y - TEXT_OFFSET) & ~0xf8000000) != 0, which means masking PC with 0xf8000000 will result in an incorrect address. Currently this is only a problem on u300. - or the assumption of the zImage being loaded by the bootloader within the first 128MB of RAM is incorrect - or when ZBOOT_ROM is used, where the above assumption is usually wrong. [ukleinek: changed mask from 0xf0000000 to 0xf8000000 for mx1 and shark + some review fixes from the mailing list] Original-Idea-and-Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Eric Miao <eric.miao@canonical.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-07-09ARM: 6206/1: CONFIG_FORCE_MAX_ZONEORDER update for SH-Mobile ARMMagnus Damm
Allow SH-Mobile ARM users to adjust FORCE_MAX_ZONEORDER. The Kconfig entry is taken from SH and non-4K page size stuff has been trimmed away. For now only SH-Mobile ARM is allowed to change this variable, SA1111 configs are kept at "9" and the rest at "11". CONFIG_FORCE_MAX_ZONEORDER lets the user tweak the maximum amount of physically contiguous memory that can be allocated by the kernel. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-09ARM: 6199/1: Add kprobe-based event tracerWill Deacon
This patch enables the HAVE_REGS_AND_STACK_ACCESS_API option for ARM which is required by the kprobe events tracer. Code based on the PowerPC port. Cc: Jean Pihet <jpihet@mvista.com> Tested-by: Jamie Iles <jamie.iles@picochip.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-09ARM: 6197/2: preliminary support for sparse IRQeric miao
So to allow NR_IRQS to be dynamic and platforms to specify the number of IRQs really needed. Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-09ARM: 6218/1: Versatile Express: add support for local timers on CA9X4 ↵Will Deacon
daughterboard This patch adds support for the Cortex-A9 local timers available when using the CA9X4 daughterboard with the Versatile Express. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-07ARM: deprecate support for old way to pass kernel parametersUwe Kleine-König
This was deprecated in 2001 and announced to live on for 5 years. For now provide a kernel parameter for those who still need it. Acked-by: Eric Miao <eric.miao@canonical.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-07-01ARM: 6195/1: OMAP3: pmu: make CPU_HAS_PMU dependent on OMAP3_EMUWill Deacon
CPU performance event counters on v7 cores will only operate if either the NIDEN or DBGEN signals are driven high. For the OMAP3 platform, these signals are driven low by default but DBGEN can be asserted by selecting the OMAP3_EMU Kconfig option, which enables the virtual clock for hardware debugging peripherals. Acked-by: Jean Pihet <jpihet@mvista.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-06-30Merge git://git.linaro.org/nico/arm_security into devel-stableRussell King
2010-06-24ARM: Remove support for LinkUp Systems L7200 SDP.Russell King
This hasn't been actively maintained for a long time, only receiving the occasional build update when things break. I doubt anyone has one of these on their desks anymore. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-06-15Add GPIO support for HTC Dream.Pavel Machek
Signed-off-by: Pavel Machek <pavel@ucw.cz> [dwalker@codeaurora.org: renamed to trout, checkpatch cleanup] Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-06-14ARM: initial stack protector (-fstack-protector) supportNicolas Pitre
This is the very basic stuff without the changing canary upon task switch yet. Just the Kconfig option and a constant canary value initialized at boot time. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2010-06-08ARM: cns3xxx: Add support for PCI Express portsAnton Vorontsov
This patch adds PCIe support for CNS3xxx-based boards. The support was tested with a directly attached SKY2 NIC, and EHCI USB controller behind the PLX PEX8112 P2P bridge (to make sure that type1 cfg cycles work as expected). Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
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