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* Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds2009-10-2925-61/+114
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: omap4: Fix UART4 platform data on omap4 omap4: Allow omap_serial_early_init() for OMAP4430 board omap3: PM: enable UART3 module wakeups omap2: Fix console serial port number for n8x0 omap2: Fix detection of n8x0 omap1: Fix DSP public peripherals support for ams-delta omap1: Fix redundant UARTs pin muxing that can break other hardware support omap: iommu: fix wrong condition check for SUPERSECTION omap: SDMA: Fix omap_stop_dma() API for channel linking omap: Fix omap-keypad by restoring old keypad.h without breaking omap2 boards that use matrix_keypad
| * omap4: Fix UART4 platform data on omap4Santosh Shilimkar2009-10-231-10/+0
| | | | | | | | | | | | | | | | | | | | | | This patch removes the unnecessary UART4 platform which is under data is wrong because of this There is a separate platform structure for UART4 Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-By: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap4: Allow omap_serial_early_init() for OMAP4430 boardSantosh Shilimkar2009-10-232-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables omap_serial_early_init() function for OMAP4430 SDP. Without this the bootup would throw oops in omap_serial_init(). Note that the ifndef CONFIG_ARCH_OMAP4 is split into two sections to enable omap_serial_early_init(). This ifndef cannot be removed until omap4 clock framework is implemented. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-By: Tony Lindgren <tony@atomide.com> Reviewed-By: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap3: PM: enable UART3 module wakeupsKevin Hilman2009-10-231-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | UART3 is in the PER powerdomain. If PER goes idle/inactive independently of CORE, for UART3 to wakeup it must have its wakeup enable bits setup in PM_WKEN_PER. This patch enables these bits. The reason it works when PER and CORE work together is because when CORE goes inactive/retention, the IOPAD wakeups are enabled and trigger UART3 wakeup. Without this patch, when the UART inactivity timer fires for UART3, its clocks are disabled and it's unable to wakeup so will be unusable until PER is awoken by another source. Another way of testing is by keeping CORE on during suspend but allowing PER to hit retention # echo 3 > /debug/pm_debug/core_pwrdm/suspend then enter suspend # echo mem > /sys/power/state Without this patch, UART3 will be unable to wakeup the system. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap2: Fix console serial port number for n8x0Tony Lindgren2009-10-231-1/+1
| | | | | | | | | | | | | | | | With the recent changes omap serial ports match the physical numbering like they should. Fix the kernel CMDLINE accordingly so console works. Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap2: Fix detection of n8x0Tony Lindgren2009-10-221-0/+12
| | | | | | | | | | | | Otherwise the machine_is_nokia_n8*() does not work. Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap1: Fix DSP public peripherals support for ams-deltaJanusz Krzysztofik2009-10-221-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DSP public peripherals used to work on OMAP1510 based (or all OMAP1 class?) machines as long as old dspgateway code were present in the l-o tree. For several months it is no longer included, breaking support for McBSP1 based audio on Amstrad Delta, for example. This patch, derived from the old dspgateway code, corrects the problem for the board by simply taking the DSP out of reset state, I guess. That way, things should not break when a new dsp code is added to the tree, and the change can be reverted then. If there are any reports on McBSP1 or other DSP public peripherals not working for other OMAP1 machines (I've not heard of any for now), I can prepare a more general patch providing an extra include file with a helper function defined. Created and tested against linux-2.6.32-rc5 Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap1: Fix redundant UARTs pin muxing that can break other hardware supportJanusz Krzysztofik2009-10-229-26/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 15ac408ee5a509053a765b816e9179515329369f removed enabled_uart and OMAP_TAG_UART. This works for mach-omap2, but causes issues on mach-omap1 for some boards as the mach-omap1 serial.c was muxing pins based on the enabled_uart flag for 15xx. Fix this by muxing pins in board-*.c files for the 15xx boards for the uart ports that had enabled_uart flag set before the commit above. Tested on Amsdtrad Delta only. Note that in the future we should add support for powering down the uarts with a timer like mach-omap2/serial.c does. Otherwise the enabled uarts will be blocking retention-while-idle. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: iommu: fix wrong condition check for SUPERSECTIONHiroshi DOYU2009-10-221-1/+1
| | | | | | | | | | | | | | | | | | A bit (2 << 0) is set both on SECTION and SUPERSECTION. To identify SUPERSECTION correctly, other bits should be compared too. Reported-by: "Srinivas Pulukuru" <srinivas.pulukuru@ti.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: SDMA: Fix omap_stop_dma() API for channel linkingSantosh Shilimkar2009-10-221-10/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | OMAP sDMA driver API omap_stop_dma() doesn't really stop the dma when used in linking scenario. The DMA channel needs to be disabled before resetting the chain. Also fix clearing of the OMAP_DMA_ACTIVE status in the linked case. Cc: Hari n <hari.zoom@gmail.com> Cc: Jarkko Nikula <jhnikula@gmail.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Venkatraman S <svenkatr@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * omap: Fix omap-keypad by restoring old keypad.h without breaking omap2 ↵Janusz Krzysztofik2009-10-228-8/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | boards that use matrix_keypad Only mach-omap2 boards are currently using matrix_keypad. Allow mach-omap1 boards to use the old style keypad.h without breaking. Created against linux-2.6.32-rc5. Compile tested with omap_3430sdp_defconfig and rx51_defconfig. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | ARM: 5769/1: CPU_ARM920T: remove dead Maverick EP9312 URLHartley Sweeten2009-10-211-4/+1
| | | | | | | | | | | | | | | | | | Remove the URL listed for Maverick EP9312 since it is not available and modify the help text appropriately. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Ryan Mallon <ryan@bluewatersys.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | ARM: 5768/1: ep93xx: remove dead code in ep93xx_gpio_ab_irq_handler()Hartley Sweeten2009-10-211-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unnecessary code in ep93xx_gpio_ab_irq_handler(). The desc calculation for gpio port B was left in when the following commit was merged. commit d8aa0251f12546e9bd1e9ee1d9782d6492819a04 Author: Dmitry Baryshkov <dbaryshkov@gmail.com> Date: Thu Oct 9 13:36:24 2008 +0100 [ARM] 5298/1: Drop desc_handle_irq() It's not needed so remove it. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Ryan Mallon <ryan@bluewatersys.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | ARM: 5767/1: ep93xx: remove ep93xx_init_time() prototypeHartley Sweeten2009-10-211-1/+0
| | | | | | | | | | | | | | | | | | Remove unused prototype for ep93xx_init_time(). This function is not defined in the kernel. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Ryan Mallon <ryan@bluewatersys.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | ARM: 5765/1: Updated U300 defconfigLinus Walleij2009-10-211-28/+66
| | | | | | | | | | | | | | | | This updates the U300 to use all the drivers merged in during the 2.6.32 merge window. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | ARM: 5766/1: Fix watchdog enabling for AT91SAM9G45Yegor Yefremov2009-10-211-1/+1
| | | | | | | | | | | | | | | | | | The macro for the watchdog has been changed from CONFIG_AT91SAM9_WATCHDOG to CONFIG_AT91SAM9X_WATCHDOG due to AT91CAP9 chips support Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | ARM: 5764/1: bcmring: add oprofile pmu supportLeo Chen2009-10-171-0/+3
| | | | | | | | | | | | | | add oprofile pmu support for bcmring. Signed-off-by: Leo Hao Chen <leochen@broadcom.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge branch 'fix' of ↵Russell King2009-10-179-59/+117
|\ \ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
| * | [ARM] pxa/spitz: add gpio button support (fixes regression)Stanislav Brabec2009-10-171-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Updating desc for lid keys and resending patch with proper comments: Define Spitz buttons as GPIO keys in a way compatible with the old driver: On/Off: As Suspend EV_PWR key Raw values of lid sensors SWA and SWB: As EV_SW switches SWA: Display Down SWB: Lid Closed Recommended user space decoding: SWA==0 & SWB==0: lid opened (landscape mode) SWA==1 & SWB==0: invalid (or mechanic race condition) SWA==0 & SWB==1: lid closed with display up (portrait mode or mechanic race condition while closing to display-less mode) SWA==1 & SWB==1: lid closed with display down (display-less mode) AK_INT remote trigger is not mapped as input event. Without complete remote driver and remote pull-up control it has no useful interpretation. Signed-off-by: Stanislav Brabec <utx@penguin.cz> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
| * | [ARM] pxa/cm-x300: fix mmc numberingMike Rapoport2009-10-171-19/+19
| |/ | | | | | | | | | | | | | | | | CM-X300 has libertas on mmc2 and SD card slot on mmc1. This patch fixes wrong MMC ports assignment. Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
| * Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds2009-10-167-40/+59
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: OMAP2xxx clock: set up clockdomain pointer in struct clk OMAP: Fix race condition with autodeps omap: McBSP: Fix incorrect receiver stop in omap_mcbsp_stop omap: Initialization of SDRC params on Zoom2 omap: RX-51: Drop I2C-1 speed to 2200 omap: SDMA: Fixing bug in omap_dma_set_global_params() omap: CONFIG_ISP1301_OMAP redefined in Beagle defconfig
| | * Merge branch '2_6_32rc4_fixes' of git://git.pwsan.com/linux-2.6 into ↵Tony Lindgren2009-10-152-30/+45
| | |\ | | | | | | | | | | | | omap-fixes-for-linus
| | | * OMAP2xxx clock: set up clockdomain pointer in struct clkPaul Walmsley2009-10-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clock24xx.c is missing a omap2_init_clk_clkdm() in its omap2_clk_init() function. Among other bad effects, this causes the OMAP hwmod layer to oops on boot. Thanks to Carlos Aguiar <carlos.aguiar@indt.org.br> and Stefano Panella <Stefano.Panella@csr.com> for reporting this bug. Thanks to Tony Lindgren <tony@atomide.com> for N800 booting advice. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Carlos Aguiar <carlos.aguiar@indt.org.br> Cc: Stefano Panella <Stefano.Panella@csr.com> Cc: Tony Lindgren <tony@atomide.com>
| | | * OMAP: Fix race condition with autodepsKalle Jokiniemi2009-10-151-30/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a possible race condition in clockdomain code handling hw supported idle transitions. When multiple autodeps dependencies are being added or removed, a transition of still remaining dependent powerdomain can result in false readings of the state counter. This is especially fatal for off mode state counter, as it could result in a driver not noticing a context loss. Fixed by disabling hw supported state transitions when autodeps are being changed. Signed-off-by: Kalle Jokiniemi <kalle.jokiniemi@digia.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | * | omap: McBSP: Fix incorrect receiver stop in omap_mcbsp_stopJarkko Nikula2009-10-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This small typo written by author causes that McBSP receiver is disabled on OMAP2430 and OMAP3430 even if only transmitter is stopped. This was noted with ALSA SoC where simultaneous recording halted if playback was stopped first. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | omap: Initialization of SDRC params on Zoom2Teerth Reddy2009-10-141-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch initializes the correct SDRC settings required for DVFS on Zoom2. Signed-off-by: Teerth Reddy <teerth@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | omap: RX-51: Drop I2C-1 speed to 2200Aaro Koskinen2009-10-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The I2C-1 bus frequency on RX-51 should be 2.2 MHz. The speed is limited by TWL5030/GAIA; a higher speed could lead to errors on the interface. The maximum speed depends on the system clock for GAIA: 2.2 MHz (if 19.2 MHz), 2.4 MHz (26 MHz) or 2.9 MHz (38.4 MHz). Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | omap: SDMA: Fixing bug in omap_dma_set_global_params()Anuj Aggarwal2009-10-141-6/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Argument tparams was not being used to program global register GCR.HI_THREAD_RESERVED. This patch fixes the same. Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | omap: CONFIG_ISP1301_OMAP redefined in Beagle defconfigSanjeev Premi2009-10-141-1/+0
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | The symbol CONFIG_ISP1301_OMAP was defined twice in the defconfig. This was causing the warning: arch/arm/configs/omap3_beagle_defconfig:972:warning: override: reassigning to symbol ISP1301_OMAP Signed-off-by: Sanjeev Premi <premi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | | ARM: 5763/1: ARM: SMP: Fix the BUG with CONFIG_PREEMPT enabledSantosh Shilimkar2009-10-151-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the BUG: using smp_processor_id() in preemptible Below is the stripped backtrace. BUG: using smp_processor_id() in preemptible [00000000] code: init/1 caller is flush_tlb_mm+0x44/0x70 Backtrace: [<c00225c4>] (dump_backtrace+0x0/0x110) from [<c01713a0>] (dump_stack+0x18/0x1c) r7:00000000 r6:c00234f0 r5:00000001 r4:c7828000 [<c0171388>] (dump_stack+0x0/0x1c) from [<c0135364>] (debug_smp_processor_id+0xc0/0xf0) [<c01352a4>] (debug_smp_processor_id+0x0/0xf0) from [<c00234f0>] (flush_tlb_mm+0x44/0x70) r7:00000000 r6:c60b41a0 r5:c60b4154 r4:00000001 [<c00234ac>] (flush_tlb_mm+0x0/0x70) from [<c0039568>] (dup_mm+0x304/0x38c) r5:c1f09058 r4:00000000 [<c0039264>] (dup_mm+0x0/0x38c) from [<c0039de4>] (copy_process+0x7b8/0xeb0) [<c003962c>] (copy_process+0x0/0xeb0) from [<c003a638>] (do_fork+0x15c/0x29c) [<c003a4dc>] (do_fork+0x0/0x29c) from [<c0021df0>] (sys_clone+0x34/0x3c) [<c0021dbc>] (sys_clone+0x0/0x3c) from [<c001efa0>] (ret_fast_syscall+0x0/0x2c) Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | Merge branch 'for-rmk-rc' of git://git.pengutronix.de/git/imx/linux-2.6Russell King2009-10-1510-31/+155
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| * | | MXC: fix reset for mx31, mx35 and mx27 SoCsValentin Longchamp2009-10-133-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The clock name for the watchdog devices was not set consistently with mx21 on these platforms, resulting in the reset not to work. Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | | fix pcm037_eet compilation with the new SPI driverGuennadi Liakhovetski2009-10-132-15/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix pcm037_eet compilation with the new imx SPI driver by unifying platform device names. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | | fix compilation of i.MX31 platformsGuennadi Liakhovetski2009-10-131-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mxc_iomux_v3_init() is defined in arch/arm/plat-mxc/iomux-v3.c, which is not linked for i.MX31 and produces an undefined reference error. Fix this by building the offending code only for i.MX35. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | | pcm970 mmc: Fix ro switchSascha Hauer2009-10-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have to use mxc_gpio_mode() for the card detection pin instead of mxc_gpio_setup_multiple_pins() because the latter does a gpio_request() and thus a later gpio_request() fails. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | | pcm038: Add SPI/MC13783 supportSascha Hauer2009-10-131-2/+94
| | | | | | | | | | | | | | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | | mx25: Add missing copyright / license headerSascha Hauer2009-10-022-0/+36
| | | | | | | | | | | | | | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | | mx25pdk: remove nand support as it is not present in current treeSascha Hauer2009-10-021-7/+0
| | | | | | | | | | | | | | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | | mx25 devices: Add missing includeSascha Hauer2009-10-021-0/+1
| | | | | | | | | | | | | | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | | i.MX27 clock: rename spi clocks to match deviceSascha Hauer2009-10-021-3/+3
| | | | | | | | | | | | | | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | | | ARM: 5760/1: ep93xx: fix build error in edb93xx.cHartley Sweeten2009-10-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a build error due to a typo (missing comma) in: ARM: 5754/1: ep93xx: update i2c support Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Ryan Mallon <ryan@bluewatersys.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | | ARM: 5759/1: Add register information of threads to coredumpArtem Bityutskiy2009-10-142-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Defines ELF_CORE_COPY_TASK_REGS so that CPU register information of every thread is included in coredump. Without this, only the faulting thread is coredumped. Cc: Roger Quadros <ext-roger.quadros@nokia.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | | ARM: 5757/1: Thumb-2: Correct "mov.w pc, lr" instruction which is unpredictableCatalin Marinas2009-10-142-14/+29
| |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | The 32-bit wide variant of "mov pc, reg" in Thumb-2 is unpredictable causing improper handling of the undefined instructions not caught by the kernel. This patch adds a movw_pc macro for such situations (currently only used in call_fpe). Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | ARM: force dcache flush if dcache_dirty bit setNitin Gupta2009-10-121-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On ARM, update_mmu_cache() does dcache flush for a page only if it has a kernel mapping (page_mapping(page) != NULL). The correct behavior would be to force the flush based on dcache_dirty bit only. One of the cases where present logic would be a problem is when a RAM based block device[1] is used as a swap disk. In this case, we would have in-memory data corruption as shown in steps below: do_swap_page() { - Allocate a new page (if not already in swap cache) - Issue read from swap disk - Block driver issues flush_dcache_page() - flush_dcache_page() simply sets PG_dcache_dirty bit and does not actually issue a flush since this page has no user space mapping yet. - Now, if swap disk is almost full, this newly read page is removed from swap cache and corrsponding swap slot is freed. - Map this page anonymously in user space. - update_mmu_cache() - Since this page does not have kernel mapping (its not in page/swap cache and is mapped anonymously), it does not issue dcache flush even if dcache_dirty bit is set by flush_dcache_page() above. <user now gets stale data since dcache was never flushed> } Same problem exists on mips too. [1] example: - brd (RAM based block device) - ramzswap (RAM based compressed swap device) Signed-off-by: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | Merge branch 'fix' of ↵Russell King2009-10-1214-164/+237
|\ \ \ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
| * | | [ARM] pxa: workaround errata #37 by not using half turbo switchingDennis O'Brien2009-10-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PXA27x Errata #37 implies system will hang when switching into or out of half turbo (HT bit in CLKCFG) mode, workaround this by not using it. Signed-off-by: Dennis O'Brien <dennis.obrien@eqware.net> Cc: stable-2.6.31 <stable@kernel.org> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
| * | | [ARM] pxa/csb726: adjust duplicate structure field initializationJulia Lawall2009-10-121-1/+1
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | Currently the irq_type field of the csb726_lan_config structure is initialized twice. The value in the first case, SMSC911X_IRQ_POLARITY_ACTIVE_LOW, is normally stored in the irq_polarity field, so I have renamed the field in the first initialization to that. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
| * | headers: remove sched.h from interrupt.hAlexey Dobriyan2009-10-113-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | After m68k's task_thread_info() doesn't refer to current, it's possible to remove sched.h from interrupt.h and not break m68k! Many thanks to Heiko Carstens for allowing this. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
| * | Merge branch 'for-linus' of ↵Linus Torvalds2009-10-091-39/+39
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: i8042 - print debug data when testing AUX IRQ delivery Input: libps2 - fix dependancy on i8042 Input: fix rx51 board keymap Input: ad7879 - pass up error codes from probe functions Input: xpad - add BigBen Interactive XBOX 360 Controller Input: rotary_encoder - fix relative axis support Input: sparkspkr - move remove() functions to .devexit.text Input: wistron_btns - add DMI entry for Medion WIM2030 laptop
| | * | Input: fix rx51 board keymapAmit Kucheria2009-10-061-39/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The original driver was written with the KEY() macro defined as (col, row) instead of (row, col) as defined by the matrix keypad infrastructure. So the keymap was defined accordingly. Since the driver that was merged upstream uses the matrix keypad infrastructure, modify the keymap accordingly. While we are at it, fix the comments in twl4030.h and define PERSISTENT_KEY as (r,c) instead of (c, r) Tested on a RX51 (N900) device. Signed-off-by: Amit Kucheria <amit.kucheria@verdurent.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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