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2014-04-07Rewind v3.13-rc3+ (78fd82238d0e5716) to v3.12Scott Wood
2013-10-16ARM: integrator: core module registers from compatible stringsLinus Walleij
This augments the core machine code for the Integrator platforms to get their references to the core module device nodes by using compatible strings instead of predefined node names and rename the CP syscon node to be simply "syscon". Reported-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-16ARM: integrator: move CM base into device treeLinus Walleij
This moves the core module (CM) control base into the device tree. It is a simple memory range of 0x200 bytes. Move the cm header down into the machine directory and unexport the cm_control() symbol as no modules are using it. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-16ARM: integrator: decommission the <mach/irqs.h> headerLinus Walleij
This header is no longer needed when we boot from the device tree. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-16ARM: integrator: delete non-devicetree boot pathLinus Walleij
The Device Tree boot path now supports everything the ATAG boot can provide, and the two are equivalent. This deletes the ATAG boot path from the Integrator/AP and Integrator/CP platforms to move them on to the future. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-16ARM: integrator: get the LM interrupts from DTLinus Walleij
The OF/DT boot path needs to get the LM (Logical Module) IRQs from the device tree for coherency. This augments the DT syscon node to contain these IRQs and alter the DT LM code to get them from there. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-07-06Merge branch 'timers-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer core updates from Thomas Gleixner: "The timer changes contain: - posix timer code consolidation and fixes for odd corner cases - sched_clock implementation moved from ARM to core code to avoid duplication by other architectures - alarm timer updates - clocksource and clockevents unregistration facilities - clocksource/events support for new hardware - precise nanoseconds RTC readout (Xen feature) - generic support for Xen suspend/resume oddities - the usual lot of fixes and cleanups all over the place The parts which touch other areas (ARM/XEN) have been coordinated with the relevant maintainers. Though this results in an handful of trivial to solve merge conflicts, which we preferred over nasty cross tree merge dependencies. The patches which have been committed in the last few days are bug fixes plus the posix timer lot. The latter was in akpms queue and next for quite some time; they just got forgotten and Frederic collected them last minute." * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (59 commits) hrtimer: Remove unused variable hrtimers: Move SMP function call to thread context clocksource: Reselect clocksource when watchdog validated high-res capability posix-cpu-timers: don't account cpu timer after stopped thread runtime accounting posix_timers: fix racy timer delta caching on task exit posix-timers: correctly get dying task time sample in posix_cpu_timer_schedule() selftests: add basic posix timers selftests posix_cpu_timers: consolidate expired timers check posix_cpu_timers: consolidate timer list cleanups posix_cpu_timer: consolidate expiry time type tick: Sanitize broadcast control logic tick: Prevent uncontrolled switch to oneshot mode tick: Make oneshot broadcast robust vs. CPU offlining x86: xen: Sync the CMOS RTC as well as the Xen wallclock x86: xen: Sync the wallclock when the system time is set timekeeping: Indicate that clock was set in the pvclock gtod notifier timekeeping: Pass flags instead of multiple bools to timekeeping_update() xen: Remove clock_was_set() call in the resume path hrtimers: Support resuming with two or more CPUs online (but stopped) timer: Fix jiffies wrap behavior of round_jiffies_common() ...
2013-06-15ARM: integrator: basic PCIv3 device tree supportLinus Walleij
This registers the memory ranges for I/O, non-prefetched and prefetched memory and configuration space for the PCIv3 bridge and let us fetch these basic memory resources from the device tree in the device tree boot path. Remove the stepping stone platform device. This is an either/or approach - the platform data path is mutually exclusive to the plain platform data path and provided addresses from the device tree have to be correct. This adds the interrupt-map property to the PCIv3 DTS file and makes the bridge obtain mappings from the device tree. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-12sched_clock: Make ARM's sched_clock generic for all architecturesStephen Boyd
Nothing about the sched_clock implementation in the ARM port is specific to the architecture. Generalize the code so that other architectures can use it by selecting GENERIC_SCHED_CLOCK. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> [jstultz: Merge minor collisions with other patches in my tree] Signed-off-by: John Stultz <john.stultz@linaro.org>
2013-06-03ARM: integrator: move static ioremapping into PCIv3 driverLinus Walleij
Try to make this driver self-contained by moving the ioremapping into the driver. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-03ARM: integrator: move VGA base assignmentLinus Walleij
The global vga_base is used for things like getting an early console on a PCI-based VGA adapter. Move this assignment into the probe function for the PCI bridge. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-03ARM: integrator: remap PCIv3 base dynamicallyLinus Walleij
Remove the static mapping for the PCIv3 PCI bridge controller and do this dynamically when probing instead. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-03ARM: integrator: convert PCIv3 bridge to platform deviceLinus Walleij
This converts the PCIv3 driver to a platform device driver, and registers the device only on the Integrator/AP instead of bailing out in the initcall if the platform is not correct. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-02Merge branch 'cleanup' into for-linusRussell King
Conflicts: arch/arm/plat-omap/dmtimer.c
2013-02-24ARM: cleanup: soc_device_register() error checkingRussell King
soc_device_register() never returns NULL, it only ever returns an error pointer or a valid pointer. Use the right function (IS_ERR()) to check this. soc_device_to_device() only ever returns &soc_dev->dev, and so can never return an error or NULL if the pointer passed into it was valid, so there's no point checking its return. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-02-21Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds
Pull ARM SoC cleanups from Arnd Bergmann: "A large number of cleanups, all over the platforms. This is dominated largely by the Samsung platforms (s3c, s5p, exynos) and a few of the others moving code out of arch/arm into more appropriate subsystems. The clocksource and irqchip drivers are now abstracted to the point where platforms that are already cleaned up do not need to even specify the driver they use, it can all get configured from the device tree as we do for normal device drivers. The clocksource changes basically touch every single platform in the process. We further clean up the use of platform specific header files here, with the goal of turning more of the platforms over to being "multiplatform" enabled, which implies that they cannot expose their headers to architecture independent code any more. It is expected that no functional changes are part of the cleanup. The overall reduction in total code lines is mostly the result of removing broken and obsolete code." * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (133 commits) ARM: mvebu: correct gated clock documentation ARM: kirkwood: add missing include for nsa310 ARM: exynos: move exynos4210-combiner to drivers/irqchip mfd: db8500-prcmu: update resource passing drivers/db8500-cpufreq: delete dangling include ARM: at91: remove NEOCORE 926 board sunxi: Cleanup the reset code and add meaningful registers defines ARM: S3C24XX: header mach/regs-mem.h local ARM: S3C24XX: header mach/regs-power.h local ARM: S3C24XX: header mach/regs-s3c2412-mem.h local ARM: S3C24XX: Remove plat-s3c24xx directory in arch/arm/ ARM: S3C24XX: transform s3c2443 subirqs into new structure ARM: S3C24XX: modify s3c2443 irq init to initialize all irqs ARM: S3C24XX: move s3c2443 irq code to irq.c ARM: S3C24XX: transform s3c2416 irqs into new structure ARM: S3C24XX: modify s3c2416 irq init to initialize all irqs ARM: S3C24XX: move s3c2416 irq init to common irq code ARM: S3C24XX: Modify s3c_irq_wake to use the hwirq property ARM: S3C24XX: Move irq syscore-ops to irq-pm clocksource: always define CLOCKSOURCE_OF_DECLARE ...
2013-02-14Merge branch 'warning-fixes' into next/fixes-non-criticalArnd Bergmann
These are fixes for compiler warnings that for the most part were introduced during the 3.8 cycle but are otherwise harmless. * warning-fixes: scripts/sortextable: silence script output ARM: s3c: i2c: add platform_device forward declaration ARM: mvebu: allow selecting mvebu without Armada XP ARM: pick Versatile by default for !MMU ARM: integrator: fix build with INTEGRATOR_AP off ARM: integrator/versatile: fix NOMMU warnings ARM: sa1100: don't warn about mach/ide.h ARM: shmobile: fix defconfig warning on CONFIG_USB ARM: w90x900: fix legacy assembly syntax ARM: samsung: fix assembly syntax for new gas ARM: disable virt_to_bus/virt_to_bus almost everywhere Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-02-14ARM: integrator/versatile: fix NOMMU warningsArnd Bergmann
On NOMMU kernels, the io_desc variables are unused because we don't use the MMU to remap the MMIO areas. Marking these variables as __maybe_unused easily avoids the otherwise harmless warnings like warning: 'versatile_io_desc' defined but not used Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Russell King <linux@arm.linux.org.uk>
2013-02-10ARM: integrator: ensure ap_syscon_base is initialised when !CONFIG_MMUWill Deacon
When running on Integrator/AP using atags, ap_syscon_base is initialised in ->map_io, which isn't called for !MMU platforms. Instead, initialise the pointer in ->machine_init, as we do when booting with device-tree. Cc: stable@vger.kernel.org Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2012-12-24ARM: delete struct sys_timerStephen Warren
Now that the only field in struct sys_timer is .init, delete the struct, and replace the machine descriptor .timer field with the initialization function itself. This will enable moving timer drivers into drivers/clocksource without having to place a public prototype of each struct sys_timer object into include/linux; the intent is to create a single of_clocksource_init() function that determines which timer driver to initialize by scanning the device dtree, much like the proposed irqchip_init() at: http://www.spinics.net/lists/arm-kernel/msg203686.html Includes mach-omap2 fixes from Igor Grinberg. Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-12-12Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds
Pull ARM SoC updates from Olof Johansson: "This contains the bulk of new SoC development for this merge window. Two new platforms have been added, the sunxi platforms (Allwinner A1x SoCs) by Maxime Ripard, and a generic Broadcom platform for a new series of ARMv7 platforms from them, where the hope is that we can keep the platform code generic enough to have them all share one mach directory. The new Broadcom platform is contributed by Christian Daudt. Highbank has grown support for Calxeda's next generation of hardware, ECX-2000. clps711x has seen a lot of cleanup from Alexander Shiyan, and he's also taken on maintainership of the platform. Beyond this there has been a bunch of work from a number of people on converting more platforms to IRQ domains, pinctrl conversion, cleanup and general feature enablement across most of the active platforms." Fix up trivial conflicts as per Olof. * tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (174 commits) mfd: vexpress-sysreg: Remove LEDs code irqchip: irq-sunxi: Add terminating entry for sunxi_irq_dt_ids clocksource: sunxi_timer: Add terminating entry for sunxi_timer_dt_ids irq: versatile: delete dangling variable ARM: sunxi: add missing include for mdelay() ARM: EXYNOS: Avoid early use of of_machine_is_compatible() ARM: dts: add node for PL330 MDMA1 controller for exynos4 ARM: EXYNOS: Add support for secondary CPU bring-up on Exynos4412 ARM: EXYNOS: add UART3 to DEBUG_LL ports ARM: S3C24XX: Add clkdev entry for camif-upll clock ARM: SAMSUNG: Add s3c24xx/s3c64xx CAMIF GPIO setup helpers ARM: sunxi: Add missing sun4i.dtsi file pinctrl: samsung: Do not initialise statics to 0 ARM i.MX6: remove gate_mask from pllv3 ARM i.MX6: Fix ethernet PLL clocks ARM i.MX6: rename PLLs according to datasheet ARM i.MX6: Add pwm support ARM i.MX51: Add pwm support ARM i.MX53: Add pwm support ARM: mx5: Replace clk_register_clkdev with clock DT lookup ...
2012-11-17ARM: integrator: push down SC dependenciesLinus Walleij
This pushes the dependencies on the Integrator/AP system controller (SC) down into the PCI V3 driver and the AP-specific board file. First, the platform data for the PL010 UART is moved into the integrator_ap.c board file, and the Integrator/CP is assigned with NULL pdata. This way the callback functions can reference the dynamically remapped AP syscon address in both the ATAG and DT boot path, and this remapping is localized to the board file. Second the PCIv3 driver is making its own dynamic remapping of the SC for the few registers it is using. When we convert the PCIv3 driver over to using device tree having a dynamically assigned base address will be useful, but we will have to use the definition from <mach/platform.h> for now, the only improvement is that it's done dynamically. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-16ARM: integrator: delete static UART1 mappingLinus Walleij
The Integrators does not use the UART1 for any debugging or similar, dynamic mapping should be all that is needed so delete this static map. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-16ARM: integrator: remove static AP syscon mappingLinus Walleij
This removes the static mapping for the AP system controller for the device tree case. Fork the static mappings table and move the system controller to only be statically mapped in the ATAG boot path. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-16ARM: integrator: hook the AP into the SoC busLinus Walleij
This hooks the Integrator/AP into the SoC bus when booting from device tree, by mapping the AP controller registers first, then registering the SoC device, and then populating the device tree with the SoC device as parent. Introduce some helpers in the core to provide sysfs files detailing the use of the SoC ID which will later be reused by the Integrator/CP patch for the same bus grouping. Cc: Lee Jones <lee.jones@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-04ARM: plat-versatile: move FPGA irq driver to drivers/irqchipLinus Walleij
This moves the Versatile FPGA interrupt controller driver, used in the Integrator/AP, Integrator/CP and some Versatile boards, out of arch/arm/plat-versatile and down to drivers/irqchip where we have consensus that such drivers belong. The header file is consequently moved to <linux/platform_data/irq-versatile-fpga.h>. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-26ARM: integrator: get rid of preallocated irq descriptorsLinus Walleij
The Integrators were using the .nr_irqs field of the machine descriptor to pre-allocate a number of descriptors at boot. This is not right: the irq chip implementations should allocate their descriptors themselves, and as a result the simple irqdomain code warns about it. Get rid of this by just deleting the .nr_irq field from the machine descriptors but take care: doing so makes the default implementation hog the first 16 IRQ numbers, so these cannot be used by the still static IRQ number assignments in the ATAG boot case. So for these, bump the IRQ numbers to begin at 64 and upward. Introduce an offset to offset all IRQ numbers if need be, though we don't expect to do that again as device tree comes along. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-09ARM: integrator: use __iomem pointers for MMIO, part 2Arnd Bergmann
Due to some interesting merges in the integrator code, not all users of mmio pointers were converted before, this fixes all warnings that got introduced as a consequence. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk>
2012-10-07Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull ARM updates from Russell King: "This is the first chunk of ARM updates for this merge window. Conflicts are expected in two files - asm/timex.h and mach-integrator/integrator_cp.c. Nothing particularly stands out more than anything else. Most of the growth is down to the opcodes stuff from Dave Martin, which is countered by Rob's patches to use more of the asm-generic headers on ARM." (A few more conflicts grew since then, but it all looked fairly trivial) * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (44 commits) ARM: 7548/1: include linux/sched.h in syscall.h ARM: 7541/1: Add ARM ERRATA 775420 workaround ARM: ensure vm_struct has its phys_addr member filled in ARM: 7540/1: kexec: Check segment memory addresses ARM: 7539/1: kexec: scan for dtb magic in segments ARM: 7538/1: delay: add registration mechanism for delay timer sources ARM: 7536/1: smp: Formalize an IPI for wakeup ARM: 7525/1: ptrace: use updated syscall number for syscall auditing ARM: 7524/1: support syscall tracing ARM: 7519/1: integrator: convert platform devices to Device Tree ARM: 7518/1: integrator: convert AMBA devices to device tree ARM: 7517/1: integrator: initial device tree support ARM: 7516/1: plat-versatile: add DT support to FPGA IRQ ARM: 7515/1: integrator: check PL010 base address from resource ARM: 7514/1: integrator: call common init function from machine ARM: 7522/1: arch_timers: register a time/cycle counter ARM: 7523/1: arch_timers: enable the use of the virtual timer ARM: 7531/1: mark kernelmode mem{cpy,set} non-experimental ARM: 7520/1: Build dtb files in all target ARM: Fix build warning in arch/arm/mm/alignment.c ...
2012-09-22Merge branch 'cleanup/__iomem' into next/cleanupOlof Johansson
__iomem annotation cleanup branch from Arnd. * cleanup/__iomem: (21 commits) net: seeq: use __iomem pointers for MMIO video: da8xx-fb: use __iomem pointers for MMIO scsi: eesox: use __iomem pointers for MMIO serial: ks8695: use __iomem pointers for MMIO input: rpcmouse: use __iomem pointers for MMIO ARM: samsung: use __iomem pointers for MMIO ARM: spear13xx: use __iomem pointers for MMIO ARM: sa1100: use __iomem pointers for MMIO ARM: prima2: use __iomem pointers for MMIO ARM: nomadik: use __iomem pointers for MMIO ARM: msm: use __iomem pointers for MMIO ARM: lpc32xx: use __iomem pointers for MMIO ARM: ks8695: use __iomem pointers for MMIO ARM: ixp4xx: use __iomem pointers for MMIO ARM: iop32x: use __iomem pointers for MMIO ARM: iop13xx: use __iomem pointers for MMIO ARM: integrator: use __iomem pointers for MMIO ARM: imx: use __iomem pointers for MMIO ARM: ebsa110: use __iomem pointers for MMIO ARM: at91: use __iomem pointers for MMIO ... Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-19ARM: integrator: use __iomem pointers for MMIOArnd Bergmann
ARM is moving to stricter checks on readl/write functions, so we need to use the correct types everywhere. This patch has a few small conflicts with stuff in linux-next, which we have to sort out in arm-soc. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-09-17ARM: 7519/1: integrator: convert platform devices to Device TreeLinus Walleij
This moves the physmap flash and SMSC91x ethernet devices over to the device tree, moving the static board code down into the #ifndef CONFIG_OF section. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-17ARM: 7518/1: integrator: convert AMBA devices to device treeLinus Walleij
This converts the AMBA (PrimeCell) devices on the Integrator/AP and Integrator/CP over to probing from the Device Tree if the kernel is compiled for Device Tree support. We continue to #ifdef out all non-DT code and vice versa on respective boot type to get a clean cut. We need to add a bunch of auxdata (compare to the Versatile) to handle bus names and callbacks alike. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-17ARM: 7517/1: integrator: initial device tree supportLinus Walleij
This is initial device tree support for the ARM Integrator family, we create a very basic device tree, #ifdef out the non-DT machines when compiling for device tree. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-16ARM: 7514/1: integrator: call common init function from machineLinus Walleij
There is currently a common integrator_init() function set up to be called from an arch_initcall(). The problem is that it is using machine_is_integrator() which is not working with device tree, let's call this from respective machine initilization function and add a parameter to tell whether it's the Integrator/AP or Integrator/CP instead. There are still machine_is*() calls in the Integrator machines directory, but this one needs to be fixed lest we don't even get a UART console on the Integrator/AP after a Device Tree boot. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-04Merge commit 'a849088aa1' from rmk/fixes into cleanup/io-pciArnd Bergmann
As Stephen Rothwell reports, a849088aa155 ("ARM: Fix ioremap() of address zero") from the arm-current tree and commit c2794437091a ("ARM: Add fixed PCI i/o mapping") from the arm-soc tree conflict in a nontrivial way in arch/arm/mm/mmu.c. Rob Herring explains: The PCI i/o reserved area has a dummy physical address of 0 and needs to be skipped by ioremap searches. So we don't set VM_ARM_STATIC_MAPPING to prevent matches by ioremap. The vm_struct settings don't really matter when we do the real mapping of the i/o space. Since commit a849088aa155 is at the start of the fixes branch in the arm tree, we can merge it into the branch that contains the other ioremap changes. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk>
2012-08-06ARM: integrator: use clk_prepare_enable() for timerLinus Walleij
The Integrator timer is using the clock framework to get the timer frequency, but missed to prepare the clock before enabling. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-26ARM: integrator: use fixed PCI i/o mappingRob Herring
Move integrator PCI to fixed i/o mapping and remove io.h. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2012-07-12ARM: integrator: convert to common clockLinus Walleij
This converts the Integrator platform to use common clock and the ICST driver. Since from this point not all ARM reference platforms use the clock, we define CONFIG_PLAT_VERSATILE_CLOCK and select it for all platforms except the Integrator. Open issue: I could not use the .init_early() field of the machine descriptor to initialize the clocks, but had to move them to .init_irq(), so presumably .init_early() is so early that common clock is not up, and .init_machine() is too late since it's needed for the clockevent/clocksource initialization. Any suggestions on how to solve this is very welcome. Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> [mturquette@linaro.org: use 'select' instead of versatile Kconfig] Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-05-04ARM: 7389/2: plat-versatile: modernize FPGA IRQ controllerLinus Walleij
This does two things to the FPGA IRQ controller in the versatile family: - Convert to MULTI_IRQ_HANDLER so we can drop the entry macro from the Integrator. The C IRQ handler was inspired from arch/arm/common/vic.c, recent bug discovered in this handler was accounted for. - Convert to using IRQ domains so we can get rid of the NO_IRQ mess and proceed with device tree and such stuff. As part of the exercise, bump all the low IRQ numbers on the Integrator PIC to start from 1 rather than 0, since IRQ 0 is now NO_IRQ. The Linux IRQ numbers are thus entirely decoupled from the hardware IRQ numbers in this controller. I was unable to split this patch. The main reason is the half-done conversion to device tree in Versatile. Tested on Integrator/AP and Integrator/CP. Cc: Grant Likely <grant.likely@secretlab.ca> Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: 7349/1: integrator: convert to sparse irqsLinus Walleij
This converts the Integrator AP/CP to use sparse IRQs. Tested on both machines. Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: 7310/1: integrator: implement sched_clock across all boardsLinus Walleij
Now that we can select a sched_clock at runtime, let's implement it for the Integrator AP, default-select the one found in all other board it for all plat-versatile boards and make the right clock kick in at runtime. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-05ARM: restart: integrator: use new restart hookRussell King
Hook these platforms restart code into the new restart hook rather than using arch_reset(). Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-28Merge branch 'devel-stable' of ↵Linus Torvalds
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'devel-stable' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (178 commits) ARM: 7139/1: fix compilation with CONFIG_ARM_ATAG_DTB_COMPAT and large TEXT_OFFSET ARM: gic, local timers: use the request_percpu_irq() interface ARM: gic: consolidate PPI handling ARM: switch from NO_MACH_MEMORY_H to NEED_MACH_MEMORY_H ARM: mach-s5p64x0: remove mach/memory.h ARM: mach-s3c64xx: remove mach/memory.h ARM: plat-mxc: remove mach/memory.h ARM: mach-prima2: remove mach/memory.h ARM: mach-zynq: remove mach/memory.h ARM: mach-bcmring: remove mach/memory.h ARM: mach-davinci: remove mach/memory.h ARM: mach-pxa: remove mach/memory.h ARM: mach-ixp4xx: remove mach/memory.h ARM: mach-h720x: remove mach/memory.h ARM: mach-vt8500: remove mach/memory.h ARM: mach-s5pc100: remove mach/memory.h ARM: mach-tegra: remove mach/memory.h ARM: plat-tcc: remove mach/memory.h ARM: mach-mmp: remove mach/memory.h ARM: mach-cns3xxx: remove mach/memory.h ... Fix up mostly pretty trivial conflicts in: - arch/arm/Kconfig - arch/arm/include/asm/localtimer.h - arch/arm/kernel/Makefile - arch/arm/mach-shmobile/board-ap4evb.c - arch/arm/mach-u300/core.c - arch/arm/mm/dma-mapping.c - arch/arm/mm/proc-v7.S - arch/arm/plat-omap/Kconfig largely due to some CONFIG option renaming (ie CONFIG_PM_SLEEP -> CONFIG_ARM_CPU_SUSPEND for the arm-specific suspend code etc) and addition of NEED_MACH_MEMORY_H next to HAVE_IDE.
2011-10-25Merge branch 'misc' into for-linusRussell King
Conflicts: arch/arm/mach-integrator/integrator_ap.c
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>
2011-09-21Merge branch 'kprobes-test' of git://git.yxit.co.uk/linux into devel-stableRussell King