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2011-12-23ARM: dts: Add intial dts file for EXYNOS4210 SoC, SMDKV310 and ORIGENThomas Abraham
Add initial dts file for EXYNOS4210 SoC. This dts file describes the SoC specific devices and properties. Along with this, add dts file for Samsung's SMDKV310 board and Insignal's ORIGEN board which uses the EXYNOS4210 dts file and extends it to describe the board specific properties. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: EXYNOS: Add Exynos4 device tree enabled board fileThomas Abraham
Add a new EXYNOS4 compatible device tree enabled board file. Boards based on the EXYNOS4 family of SoC's can use this as the machine/board file. When using this machine fike, a corresponding device tree blob which describes the board's properties should be supplied at boot time to the kernel. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: S5PV210: Modify platform data for pl330 driverThomas Abraham
With the 'struct dma_pl330_peri' removed, the platfrom data for dma driver can be simplified to a simple list of peripheral request ids. Cc: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: S5PC100: Modify platform data for pl330 driverThomas Abraham
With the 'struct dma_pl330_peri' removed, the platfrom data for dma driver can be simplified to a simple list of peripheral request ids. Cc: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: S5P64x0: Modify platform data for pl330 driverThomas Abraham
With the 'struct dma_pl330_peri' removed, the platfrom data for dma driver can be simplified to a simple list of peripheral request ids. Cc: Jassi Brar <jassisinghbrar@gmail.com> Cc: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: EXYNOS: Add a alias for pdma clocksThomas Abraham
PDMA controllers when instantiated from device tree are registered using amba_device_register(). The registration process enables clock to the controllers to read the peripheral id of the PDMA amba device. In case of Exynos4, the clocks to the PDMA controllers are named as 'dma' but amba_device_register() looks up the clock using the name 'apb_pclk'. Hence, alias clocks with name 'apb_pclk' clock are created for clocks with name 'dma'. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: EXYNOS: Limit usage of pl330 device instance to non-dt buildThomas Abraham
The pl330 device instances and associated platform data is required only for non-device-tree builds. With device tree enabled, the data about the platform is obtained from the device tree. For images that include both dt and non-dt platforms, an addditional check is added to ensure that static amba device registrations is applicable to only non-dt platforms. Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: SAMSUNG: Add device tree support for pl330 dma engine wrappersThomas Abraham
A new dma request id 'DMACH_DT_PROP' is introduced for client drivers requesting a dma channel. This request indicates that a device tree node property represting the dma channel is available in 'struct samsung_dma_info'. The dma channel request wrapper uses the node property value as the value for the filter parameter. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: EXYNOS: Modify platform data for pl330 driverThomas Abraham
With the 'struct dma_pl330_peri' removed, the platfrom data for dma driver can be simplified to a simple list of peripheral request ids. Cc: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23DMA: PL330: move filter function into driverThomas Abraham
The dma channel selection filter function is moved from plat-samsung into the pl330 driver. In additon to that, a check is added in the filter function to ensure that the channel on which the filter has been invoked is pl330 channel instance (and avoid any incorrect access of chan->private in a system with multiple types of DMA drivers). Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23serial: samsung: merge probe() function from all SoC specific extensionsThomas Abraham
With reset port, set clock and get clock functions in SoC specific extentions being removed, only the driver probe is left over in these extensions. The probe function itself can be merged into one and moved into the samsung common serial driver. With driver probe also moved, all the SoC specific extentions are no longer required and they are deleted. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: SAMSUNG: register uart clocks to clock lookup listThomas Abraham
Samsung uart driver lookups the clock using the connection id 'clk_uart_baud'. The uart clocks for all Samsung platforms are reorganized to register them with the lookup name as required by the uart driver. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23serial: samsung: remove all uses of get_clksrc and set_clksrcThomas Abraham
With clkdev based clock lookup support, the clock set and get operation using clock names communicated between the samsung uart driver and the SoC specific extension can be removed. In addition to that, for each platform specific extension, add the default clock selection, number of clock options for uart baud generator, clock selection bit mask and shift values which is required by the clkdev support in samsung uart driver. The default clock selection value 'def_clk_sel' specifies the default clock to be used as the source clock for baud rate generator in case the platform code does not specify the same. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: SAMSUNG: remove struct 's3c24xx_uart_clksrc' and all uses of itThomas Abraham
With clkdev based clock lookup added to samsung serial driver, the use of 'struct s3c24xx_uart_clksrc' to supply clock names in platform data is removed from all the Samsung platform code. Cc: Ben Dooks <ben-linux@fluff.org> Cc: Ramax Lo <ramaxlo@gmail.com> Cc: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23serial: samsung: switch to clkdev based clock lookupThomas Abraham
Instead of using clock names supplied in platform data, use a generic clock name 'clk_uart_baud' to look up clocks. The platform code should register clocks with the name 'clk_uart_baud' which can be used by the baud rate generator. The clock lookup and selection of the best clock as baud rate clock is reworked. Platform code can specify the clocks that can be used as source for the baud clock (as supported previously by passing names of clocks). A new member is added to the platform data 'clk_sel' which holds a bit-field value with each bit representing a baud source clock. If a bit at any bit position is set, that clock is looked up to participate in the selection of the baud clock source. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: S3C2440: move handling of fclk/n clock to platform codeThomas Abraham
s3c2440 uses fclk/n (fclk divided by n) clock as one of the possible clocks used to generate the baud rate clock. The divider 'n' in this case can be logically represented outside of the uart controller. This patch creates a new clock by name "fclk_n" for s3c2440 based platforms to represent the fclk/n clock in the platform code. This clock provides a get_rate callback that checks the UCON0/1/2 registers to determine the clock rate. The samsung uart driver would receive the "fclk_n" clock name as one of the possible baud rate clock options and the driver need not determine clock rate of fclk/n. Cc: Ben Dooks <ben-linux@fluff.org> Cc: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: EXYNOS: Enable conversion of GIC dt irq specifier to linux virqThomas Abraham
Enable conversion of device tree interrupt specifier to linux virq domain for GIC controller. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-23ARM: SAMSUNG: Move timer irq numbers to end of linux irq spaceThomas Abraham
The timer irqs statically mapped from linux irq numbers 11 to 15 are moved to the end of the statically mapped linux irq space. The GIC PPI and SPI interrupts are relocated to start from 16 and 32 of the linux irq space. This is a required to add device tree support for GIC and Interrupt combiner for EXYNOS4. A new macro 'IRQ_TIMER_BASE' specifies a platform specific base of the linux virq number for the timer interrupts. For exynos4, this base is set to end of the linux virq space. For the other S5P platforms, the existing base '11' is retained. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-16Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: OMAP: rx51: fix USB ARM: OMAP: mcbsp: Fix possible memory corruption arm/imx: fix power button on imx51 babbage board ARM: imx: fix cpufreq build errors ARM: mx5: add __initconst for fec pdata MXC PWM: should active during DOZE/WAIT/DBG mode ARM: EXYNOS: Fix build error without CONFIG_LOCAL_TIMERS ARM: EXYNOS: Fix for stall in case of cpu hotplug or sleep ARM: S5PV210: Set 1000ns as PWM backlight period on SMDKV210 ARM: SAMSUNG: remove duplicated header include
2011-12-15Merge branch 'samsung-fixes-3' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
2011-12-15Merge branch 'fixes' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
2011-12-15ARM: unwinder: fix bisection to find origin in .idx sectionUwe Kleine-König
The bisection implemented in unwind_find_origin() stopped to early. If there is only a single entry left to check the original code just took the end point as origin which might be wrong. This was introduced in commit de66a979012d ("ARM: 7187/1: fix unwinding for XIP kernels"). Reported-and-tested-by: Nick Bowler <nbowler@elliptictech.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-12-13ARM: OMAP: rx51: fix USBFelipe Contreras
Commit 10299e2e4e3ed3b16503d4e04edd48b33083f4e2 (ARM: RX-51: Enable isp1704 power on/off) added power management for isp1704. However, the transceiver should be powered on by default, otherwise USB doesn't work at all for networking during boot. All kernels after v3.0 are affected. Cc: stable@kernel.org Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Reviewed-by: Sebastian Reichel <sre@debian.org> [tony@atomide.com: updated comments] Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-13Merge branch 'fixes' of ↵Linus Torvalds
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: ARM: 7204/1: arch/arm/kernel/setup.c: initialize arm_dma_zone_size earlier ARM: 7185/1: perf: don't assign platform_device on unsupported CPUs ARM: 7187/1: fix unwinding for XIP kernels ARM: 7186/1: fix Kconfig issue with PHYS_OFFSET and !MMU
2011-12-13Merge branch 'imx-fixes-for-arnd' of ↵Arnd Bergmann
git://git.pengutronix.de/git/imx/linux-2.6 into fixes
2011-12-12ARM: OMAP: mcbsp: Fix possible memory corruptionJarkko Nikula
Commits 09d28d ("ARM: OMAP: mcbsp: Start generalize omap2_mcbsp_set_clks_src") and 7bc0c4 ("ARM: OMAP: mcbsp: Start generalize signal muxing functions") incorrectly set two struct omap_mcbsp_platform_data fields after omap_device_build_ss and kfree calls. Fix this by moving these pdata assignments before those calls. Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Reported-by: NeilBrown <neilb@suse.de> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-11ARM: 7204/1: arch/arm/kernel/setup.c: initialize arm_dma_zone_size earlierArnaud Patard
arm_dma_zone_size is used by arm_bootmem_free() which is called by paging_init(). Thus it needs to be set before calling it. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Acked-by: Nicolas Pitre <nico@linaro.org> Cc: stable@kernel.org Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-12-09Merge branch 'iommu/fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu * 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: MAINTAINERS: Update amd-iommu F: patterns iommu/amd: Fix typo in kernel-parameters.txt iommu/msm: Fix compile error in mach-msm/devices-iommu.c Fix comparison using wrong pointer variable in dma debug code
2011-12-09arm/imx: fix power button on imx51 babbage boardShawn Guo
Since commit 6571534 (plat-mxc: iomux-v3.h: implicitly enable pull-up/down when that's desired) was in, the power button on imx51 babbage board stopped working because it's pulled up by mistake. The patch removes the pull-up setting from the pad configuration for that gpio to make the power button back to work. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-12-09ARM: imx: fix cpufreq build errorsRichard Zhao
CC arch/arm/plat-mxc/cpufreq.o arch/arm/plat-mxc/cpufreq.c:203: error: expected declaration specifiers or '...' before string constant arch/arm/plat-mxc/cpufreq.c:203: warning: data definition has no type or storage class arch/arm/plat-mxc/cpufreq.c:203: warning: type defaults to 'int' in declaration of 'MODULE_AUTHOR' arch/arm/plat-mxc/cpufreq.c:203: warning: function declaration isn't a prototype arch/arm/plat-mxc/cpufreq.c:204: error: expected declaration specifiers or '...' before string constant arch/arm/plat-mxc/cpufreq.c:204: warning: data definition has no type or storage class arch/arm/plat-mxc/cpufreq.c:204: warning: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION' arch/arm/plat-mxc/cpufreq.c:204: warning: function declaration isn't a prototype arch/arm/plat-mxc/cpufreq.c:205: error: expected declaration specifiers or '...' before string constant arch/arm/plat-mxc/cpufreq.c:205: warning: data definition has no type or storage class arch/arm/plat-mxc/cpufreq.c:205: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE' arch/arm/plat-mxc/cpufreq.c:205: warning: function declaration isn't a prototype make[1]: *** [arch/arm/plat-mxc/cpufreq.o] Error 1 make: *** [arch/arm/plat-mxc] Error 2 Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Signed-off-by: Richard Zhao <richard.zhao@linaro.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-12-09ARM: mx5: add __initconst for fec pdataDong Aisheng
Signed-off-by: Dong Aisheng <b29396@freescale.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-12-09MXC PWM: should active during DOZE/WAIT/DBG modeJason Chen
Signed-off-by: Jason Chen <jason.chen@linaro.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: stable@kernel.org
2011-12-08Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits) ARM: sa1100: fix build error ARM: OMAP1: recalculate loops per jiffy after dpll1 reprogram ARM: davinci: dm365 evm: align nand partition table to u-boot ARM: davinci: da850 evm: change audio edma event queue to EVENTQ_0 ARM: davinci: dm646x evm: wrong register used in setup_vpif_input_channel_mode ARM: davinci: dm646x does not have a DSP domain ARM: davinci: psc: fix incorrect offsets ARM: davinci: psc: fix incorrect mask ARM: mx28: LRADC macro rename arm: mx23: recognise stmp378x as mx23 ARM: mxs: fix machines' initializers order ARM: mxs/tx28: add __initconst for fec pdata ARM: S3C64XX: Staticise s3c6400_sysclass ARM: S3C64XX: Add linux/export.h to dev-spi.c ARM: S3C64XX: Remove extern from definition of framebuffer setup call MAINTAINERS: Extend Samsung patterns to cover SPI and ASoC drivers MAINTAINERS: Add linux-samsung-soc mailing list for Samsung MAINTAINERS: Consolidate Samsung MAINTAINERS ARM: CSR: PM: fix build error due to undeclared 'THIS_MODULE' ARM: CSR: fix build error due to new mdesc->dma_zone_size ...
2011-12-08Merge branch 'fixes' of git://github.com/hzhuang1/linux into fixesArnd Bergmann
2011-12-08ARM: sa1100: fix build errorJett.Zhou
arm-eabi-4.4.3-ld:--defsym zreladdr=: syntax error make[2]: *** [arch/arm/boot/compressed/vmlinux] Error 1 make[1]: *** [arch/arm/boot/compressed/vmlinux] Error 2 make: *** [uImage] Error 2 Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Jett.Zhou <jtzhou@marvell.com>
2011-12-07Merge branch 'fixes' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
2011-12-08ARM: EXYNOS: Fix build error without CONFIG_LOCAL_TIMERSKukjin Kim
arch/arm/mach-exynos/mct.c: In function 'exynos4_timer_resources': arch/arm/mach-exynos/mct.c:450: error: 'exynos4_mct_tick_isr' undeclared (first use in this function) arch/arm/mach-exynos/mct.c:450: error: (Each undeclared identifier is reported only once arch/arm/mach-exynos/mct.c:450: error: for each function it appears in.) make[1]: *** [arch/arm/mach-exynos/mct.o] Error 1 Reported-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Changhwan Youn <chaos.youn@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Marc Zyngier <marc.zyngier@arm.com>
2011-12-08ARM: EXYNOS: Fix for stall in case of cpu hotplug or sleepAmit Daniel Kachhap
This patch adds remove_irq in place of disable_irq which is correct equivalent function for setup_irq used in exynos4_mct_tick_init. Signed-off-by: Amit Daniel Kachhap <amit.kachhap@linaro.org> Tested-by: Inderpal Singh <inderpal.singh@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-08ARM: S5PV210: Set 1000ns as PWM backlight period on SMDKV210Jingoo Han
The SMDK board uses LT3591 as backlight LED driver of LTE480WV LCD. According to the LT3591 datasheet, the switching frequency should be 1MHz. So, PWM period is calculated by following formula: PWM period = 1/switching frequency = 1/1MHz = 1000ns Thus, the PWM backlight period should be 1000ns. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-08ARM: SAMSUNG: remove duplicated header includeJingoo Han
This patch removes duplicated slab header for pwm backlight. arch/arm/plat-samsung/dev-backlight.c: slab.h is included more than once. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-12-07Merge branch 'samsung-fixes-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
2011-12-06Merge branch 'fixes' of git://gitorious.org/linux-davinci/linux-davinci into ↵Arnd Bergmann
fixes
2011-12-06Merge branch 'mxs/fixes' of git://git.linaro.org/people/shawnguo/linux-2.6 ↵Arnd Bergmann
into fixes
2011-12-06Merge branch 'fixes' of ↵Arnd Bergmann
git://gitorious.org/sirfprima2-kernel/sirfprima2-kernel into fixes
2011-12-06Merge branch 'imx/fix-irqdomain' of ↵Arnd Bergmann
git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
2011-12-06Merge branch 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixesArnd Bergmann
2011-12-06ARM: 7185/1: perf: don't assign platform_device on unsupported CPUsWill Deacon
In the unlikely case that a platform registers a PMU platform_device when running on a CPU that is unsupported by perf, we will encounter a NULL dereference when trying to assign the platform_device to the cpu_pmu structure. This patch checks that the CPU is supported by perf before assigning the platform_device. Reported-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-12-06ARM: 7187/1: fix unwinding for XIP kernelsUwe Kleine-König
The linker places the unwind tables in readonly sections. So when using an XIP kernel these are located in ROM and cannot be modified. For that reason the current approach to convert the relative offsets in the unwind index to absolute addresses early in the boot process doesn't work with XIP. The offsets in the unwind index section are signed 31 bit numbers and the structs are sorted by this offset. So it first has offsets between 0x40000000 and 0x7fffffff (i.e. the negative offsets) and then offsets between 0x00000000 and 0x3fffffff. When seperating these two blocks the numbers are sorted even when interpreting the offsets as unsigned longs. So determine the first non-negative entry once and track that using the new origin pointer. The actual bisection can then use a plain unsigned long comparison. The only thing that makes the new bisection more complicated is that the offsets are relative to their position in the index section, so the key to search needs to be adapted accordingly in each step. Moreover several consts are added to catch future writes and rename the member "addr" of struct unwind_idx to "addr_offset" to better match the new semantic. (This has the additional benefit of breaking eventual users at compile time to make them aware of the change.) In my tests the new algorithm was a tad faster than the original and has the additional upside of not needing the initial conversion and so saves some boot time and it's possible to unwind even earlier. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-12-06ARM: 7186/1: fix Kconfig issue with PHYS_OFFSET and !MMUNicolas Pitre
Commit 1b9f95f8ade9 (ARM: prepare for removal of a bunch of <mach/memory.h> files) introduced CONFIG_PHYS_OFFSET but the Kconfig hex prompt did not provide a default value. This has the undesired side effect of breaking a reportedly used trick for updating defconfigs on the fly for routine buildtesting across all arch and all platforms, i.e. cp /path/to/somedefconfig .config ; yes "" | make oldconfig because the config system will endlessly loop until a valid address is provided. However we can't just pick a random default value since it is likely to be wrong for the majority of the boards as the right answer for this option is quite varied. So the fact that the config system insists on having a proper value be entered is actually a good thing. It turns out that only at91x40_defconfig has this problem because it has CONFIG_MMU=n. However, in the !MMU case, there is already a CONFIG_DRAM_BASE value that can be used here. So let's use that as a default in that case and suppress the redundant CONFIG_PHYS_OFFSET prompt. Eventually the DRAM_BASE config option could simply be replaced by PHYS_OFFSET directly, but that's a larger change better suited for later. Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Nicolas Pitre <nico@linaro.org> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-12-06iommu/msm: Fix compile error in mach-msm/devices-iommu.cJoerg Roedel
Fix compile error due to missing <linux/module.h> include. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>