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* clocksource: pxa: Move PXA timer to clocksource frameworkRobert Jarzmik2014-07-231-162/+0
| | | | | | | | Move time.c from arch/arm/mach-pxa/time.c to drivers/clocksource/pxa_timer.c. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
* Merge tag 'soc-for-linus' of ↵Linus Torvalds2014-01-231-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform changes from Olof Johansson: "New core SoC-specific changes. New platforms: * Introduction of a vendor, Hisilicon, and one of their SoCs with some random numerical product name. * Introduction of EFM32, embedded platform from Silicon Labs (ARMv7m, i.e. !MMU). * Marvell Berlin series of SoCs, which include the one in Chromecast. * MOXA platform support, ARM9-based platform used mostly in industrial products * Support for Freescale's i.MX50 SoC. Other work: * Renesas work for new platforms and drivers, and conversion over to more multiplatform-friendly device registration schemes. * SMP support for Allwinner sunxi platforms. * ... plus a bunch of other stuff across various platforms" * tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (201 commits) ARM: tegra: fix tegra_powergate_sequence_power_up() inline ARM: msm_defconfig: Update for multi-platform ARM: msm: Move MSM's DT based hardware to multi-platform support ARM: msm: Only build timer.c if required ARM: msm: Only build clock.c on proc_comm based platforms ARM: ux500: Enable system suspend with WFI support ARM: ux500: turn on PRINTK_TIME in u8500_defconfig ARM: shmobile: r8a7790: Fix I2C controller names ARM: msm: Simplify ARCH_MSM_DT config ARM: msm: Add support for MSM8974 SoC ARM: sunxi: select ARM_PSCI MAINTAINERS: Update Allwinner sunXi maintainer files ARM: sunxi: Select RESET_CONTROLLER ARM: imx: improve the comment of CCM lpm SW workaround ARM: imx: improve status check of clock gate ARM: imx: add necessary interface for pfd ARM: imx_v6_v7_defconfig: Select CONFIG_REGULATOR_PFUZE100 ARM: imx_v6_v7_defconfig: Select MX35 and MX50 device tree support ARM: imx: Add cpu frequency scaling support ARM i.MX35: Add devicetree support. ...
| * ARM: pxa: Switch to sched_clock_register()Stephen Boyd2013-11-211-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | The 32 bit sched_clock interface now supports 64 bits. Upgrade to the 64 bit function to allow us to remove the 32 bit registration interface. Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Kevin Hilman <khilman@linaro.org>
* | ARM: pxa: remove IRQF_DISABLEDMichael Opdenacker2013-12-111-1/+1
|/ | | | | | | | | | This flag is a NOOP since 2.6.35 and can be removed. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> [olof: Fixed compilation failure for pcm990-baseboard] Signed-off-by: Olof Johansson <olof@lixom.net>
* sched_clock: Make ARM's sched_clock generic for all architecturesStephen Boyd2013-06-121-1/+1
| | | | | | | | | | 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>
* Merge branch 'clocksource/cleanup' into next/cleanupOlof Johansson2013-01-141-6/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clockevent cleanup series from Shawn Guo. Resolved move/change conflict in mach-pxa/time.c due to the sys_timer cleanup. * clocksource/cleanup: clocksource: use clockevents_config_and_register() where possible ARM: use clockevents_config_and_register() where possible clockevents: export clockevents_config_and_register for module use + sync to Linux 3.8-rc3 Signed-off-by: Olof Johansson <olof@lixom.net> Conflicts: arch/arm/mach-pxa/time.c
| * ARM: use clockevents_config_and_register() where possibleShawn Guo2013-01-141-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The clockevent core is able to figure out the best mult and shift, calculate min_delta_ns and max_delta_ns, with the necessary info passed into clockevents_config_and_register(). Use this combined configure and register function where possible to make the codes less error prone and gain some positive diff stat. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Anton Vorontsov <cbouatmailru@gmail.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Tested-by: Roland Stigge <stigge@antcom.de> Acked-by: Eric Miao <eric.y.miao@gmail.com> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: David Brown <davidb@codeaurora.org> Tested-by: Tony Lindgren <tony@atomide.com> Acked-by: Barry Song <baohua.song@csr.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Tony Prisk <linux@prisktech.co.nz> Cc: Lennert Buytenhek <buytenh@wantstofly.org> Cc: Wan ZongShun <mcuos.com@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Olof Johansson <olof@lixom.net>
* | ARM: delete struct sys_timerStephen Warren2012-12-241-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | ARM: pxa: convert timer suspend/resume to clock_event_deviceStephen Warren2012-12-241-38/+38
|/ | | | | | | | | | | | Move PXA's timer suspend/resume functions from struct sys_timer pxa_timer into struct clock_event_device ckevt_pxa_osmr0. This will allow the sys_timer suspend/resume fields to be removed, and eventually lead to a complete removal of struct sys_timer. Cc: Russell King <linux@arm.linux.org.uk> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: sa11x0/pxa: convert OS timer registers to IOMEMRussell King2012-07-091-26/+26
| | | | | | | | | | | | | | | | | | | | | | Make the OS timer registers have IOMEM like properities so they can be passed to readl_relaxed/writel_relaxed() et.al. rather than being straight volatile dereferences. Add linux/io.h includes where required. linux/io.h includes added to arch/arm/mach-sa1100/cpu-sa1100.c, arch/arm/mach-sa1100/jornada720_ssp.c, arch/arm/mach-sa1100/leds-lart.c drivers/input/touchscreen/jornada720_ts.c, drivers/pcmcia/sa1100_shannon.c from Arnd. This fixes these warnings: arch/arm/mach-sa1100/time.c: In function 'sa1100_timer_init': arch/arm/mach-sa1100/time.c:104: warning: passing argument 1 of 'clocksource_mmio_init' discards qualifiers from pointer target type arch/arm/mach-pxa/time.c: In function 'pxa_timer_init': arch/arm/mach-pxa/time.c:126: warning: passing argument 1 of 'clocksource_mmio_init' discards qualifiers from pointer target type Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: pxa: remove NR_IRQSRob Herring2012-01-251-0/+1
| | | | | | Remove NR_IRQS and add a per machine .nr_irqs setting. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* ARM: 7205/2: sched_clock: allow sched_clock to be selected at runtimeMarc Zyngier2011-12-181-12/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sched_clock() is yet another blocker on the road to the single image. This patch implements an idea by Russell King: http://www.spinics.net/lists/linux-omap/msg49561.html Instead of asking the platform to implement both sched_clock() itself and the rollover callback, simply register a read() function, and let the ARM code care about sched_clock() itself, the conversion to ns and the rollover. sched_clock() uses this read() function as an indirection to the platform code. If the platform doesn't provide a read(), the code falls back to the jiffy counter (just like the default sched_clock). This allow some simplifications and possibly some footprint gain when multiple platforms are compiled in. Among the drawbacks, the removal of the *_fixed_sched_clock optimization which could negatively impact some platforms (sa1100, tegra, versatile and omap). Tested on 11MPCore, OMAP4 and Tegra. Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Colin Cross <ccross@android.com> Cc: Erik Gilling <konkers@android.com> Cc: Olof Johansson <olof@lixom.net> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Alessandro Rubini <rubini@unipv.it> Cc: STEricsson <STEricsson_nomadik_linux@list.st.com> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Ben Dooks <ben-linux@fluff.org> Tested-by: Jamie Iles <jamie@jamieiles.com> Tested-by: Tony Lindgren <tony@atomide.com> Tested-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Krzysztof Halasa <khc@pm.waw.pl> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* clocksource: convert ARM 32-bit up counting clocksourcesRussell King2011-05-231-15/+2
| | | | | | | | | | | | | | | | Convert ixp4xx, lpc32xx, mxc, netx, pxa, sa1100, tcc8k, tegra and u300 to use the generic mmio clocksource recently introduced. Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Krzysztof Halasa <khc@pm.waw.pl> Acked-by: Eric Miao <eric.y.miao@gmail.com> Acked-by: "Hans J. Koch" <hjk@hansjkoch.de> Acked-by: Colin Cross <ccross@android.com> Cc: Erik Gilling <konkers@android.com> Cc: Olof Johansson <olof@lixom.net> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: pxa: auto compute shift and mult of timerHaojian Zhuang2011-03-161-3/+2
| | | | | | | | | Use auto-computed shift and mult of timer with new API clocksource_calc_mult_shift()/clockevents_calc_mult_shift(). Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Cc: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
* ARM: pxa: convert sched_clock() to use new infrastructureRussell King2010-12-221-20/+9
| | | | | | | | Convert pxa to use the new sched_clock() infrastructure for extending 32bit counters to full 64-bit nanoseconds. Tested-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: ensure all sched_clock() implementations are notrace markedRussell King2010-12-221-1/+1
| | | | | | | | | | | | | | | | ftrace requires sched_clock() to be notrace. Ensure that all implementations are so marked. Also make sure that they include linux/sched.h Also ensure OMAP clocksource read functions are marked notrace as they're used for sched_clock() too. Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Will Deacon <will.deacon@arm.com> Tested-by: Mikael Pettersson <mikpe@it.uu.se> Tested-by: Eric Miao <eric.y.miao@gmail.com> Tested-by: Olof Johansson <olof@lixom.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: PXA: update clock source registrationRussell King2010-12-221-5/+1
| | | | | | | | | In d7e81c2 (clocksource: Add clocksource_register_hz/khz interface) new interfaces were added which simplify (and optimize) the selection of the divisor shift/mult constants. Switch over to using this new interface. Tested-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* arm/{pxa,sa1100,nomadik}: Don't disable irqs in set_next_event and set_modeUwe Kleine-König2010-01-221-9/+1
| | | | | | | | These functions are called with irqs already off. This commit removes the calls to raw_local_irq_save and raw_local_irq_restore on platforms that don't have to use a shared interrupt for their timekeeping. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
* clocksource: pass clocksource to read() callbackMagnus Damm2009-04-211-1/+1
| | | | | | | | | | | | | | Pass clocksource pointer to the read() callback for clocksources. This allows us to share the callback between multiple instances. [hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods] [akpm@linux-foundation.org: cleanup] Signed-off-by: Magnus Damm <damm@igel.co.jp> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [ARM] pxa: separate definitions from pxa-regs.h and remove it finallyEric Miao2009-03-091-2/+1
| | | | | | | | | | | | | | | | | | | The remaining registers are separated into: - <mach/regs-ost.h> - <mach/regs-rtc.h> - <mach/regs-intc.h> and then we can remove pxa-regs.h completely. Instead of #include this file, let's: 1. include the specific <mach/regs-*.h> with care (if that's absolutely necessary) 2. define the registers in the driver, make cleanly defined API to expose the register access to external with sufficient reason Signed-off-by: Eric Miao <eric.miao@marvell.com>
* Merge branch 'cpus4096-for-linus-2' of ↵Linus Torvalds2009-01-021-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (66 commits) x86: export vector_used_by_percpu_irq x86: use logical apicid in x2apic_cluster's x2apic_cpu_mask_to_apicid_and() sched: nominate preferred wakeup cpu, fix x86: fix lguest used_vectors breakage, -v2 x86: fix warning in arch/x86/kernel/io_apic.c sched: fix warning in kernel/sched.c sched: move test_sd_parent() to an SMP section of sched.h sched: add SD_BALANCE_NEWIDLE at MC and CPU level for sched_mc>0 sched: activate active load balancing in new idle cpus sched: bias task wakeups to preferred semi-idle packages sched: nominate preferred wakeup cpu sched: favour lower logical cpu number for sched_mc balance sched: framework for sched_mc/smt_power_savings=N sched: convert BALANCE_FOR_xx_POWER to inline functions x86: use possible_cpus=NUM to extend the possible cpus allowed x86: fix cpu_mask_to_apicid_and to include cpu_online_mask x86: update io_apic.c to the new cpumask code x86: Introduce topology_core_cpumask()/topology_thread_cpumask() x86: xen: use smp_call_function_many() x86: use work_on_cpu in x86/kernel/cpu/mcheck/mce_amd_64.c ... Fixed up trivial conflict in kernel/time/tick-sched.c manually
| * cpumask: convert struct clock_event_device to cpumask pointers.Rusty Russell2008-12-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Impact: change calling convention of existing clock_event APIs struct clock_event_timer's cpumask field gets changed to take pointer, as does the ->broadcast function. Another single-patch change. For safety, we BUG_ON() in clockevents_register_device() if it's not set. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Ingo Molnar <mingo@elte.hu>
* | Merge branch 'for-rmk' of ↵Russell King2008-12-291-9/+1
|\ \ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel
| * | [ARM] rtc-sa1100: don't assume CLOCK_TICK_RATE to be a constantEric Miao2008-12-291-9/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | As Nicolas and Russell pointed out, CLOCK_TICK_RATE is no more a constant on PXA when multiple processors and platforms are selected, change TIMER_FREQ in rtc-sa1100.c into a variable. Since the code to decide the clock tick rate is re-used from timer.c, introduce a common get_clock_tick_rate() for this. Signed-off-by: Eric Miao <eric.miao@marvell.com> Acked-by: Nicolas Pitre <nico@marvell.com>
* / [ARM] pxa: avoid polluting the kernel's namespaceRussell King2008-11-281-0/+1
|/ | | | | | | Avoid unnecessarily pollution of the kernel's namespace by avoiding mach/hardware.h. Include this header file where necessary. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2008-10-111-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (236 commits) [ARM] 5300/1: fixup spitz reset during boot [ARM] 5295/1: make ZONE_DMA optional [ARM] 5239/1: Palm Zire 72 power management support [ARM] 5298/1: Drop desc_handle_irq() [ARM] 5297/1: [KS8695] Fix two compile-time warnings [ARM] 5296/1: [KS8695] Replace macro's with trailing underscores. [ARM] pxa: allow multi-machine PCMCIA builds [ARM] pxa: add preliminary CPUFREQ support for PXA3xx [ARM] pxa: add missing ACCR bit definitions to pxa3xx-regs.h [ARM] pxa: rename cpu-pxa.c to cpufreq-pxa2xx.c [ARM] pxa/zylonite: add support for USB OHCI [ARM] ohci-pxa27x: use ioremap() and offset for register access [ARM] ohci-pxa27x: introduce pxa27x_clear_otgph() [ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resource [ARM] ohci-pxa27x: move OHCI controller specific registers into the driver [ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registers [ARM] pxa: move I2S register and bit definitions into pxa2xx-i2s.c [ARM] pxa: simplify DMA register definitions [ARM] pxa: make additional DCSR bits valid for PXA3xx [ARM] pxa: move i2c register and bit definitions into i2c-pxa.c ... Fixed up conflicts in arch/arm/mach-versatile/core.c sound/soc/pxa/pxa2xx-ac97.c sound/soc/pxa/pxa2xx-i2s.c manually.
| * [ARM] pxa: make cpu_is_pxa2* macros more consistentEric Miao2008-09-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | 1. add a CPUID table in the comment 2. make cpu_is_pxa25x() true for PXA210/250/255/26x 3. PXA210 is treated as PXA25x, all related code modified to reflect this Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | MN10300: Move asm-arm/cnt32_to_63.h to include/linux/David Howells2008-09-241-1/+1
|/ | | | | | | | Move asm-arm/cnt32_to_63.h to include/linux/ so that MN10300 can make use of it too. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King2008-08-071-1/+1
| | | | | | This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] pxa: fix PXA27x resumeRussell King2008-01-261-1/+1
| | | | | | | | | | | | | | | | | When PXA27x wakes up, tick_resume_oneshot() tries to set a timer interrupt to occur immediately. Since PXA27x requires at least MIN_OSCR_DELTA, this causes us to flag an error. tick_program_event() then increments the next event time by min_delta_ns. However, by the time we get back to programming the next event, the OSCR has incremented such that we fail again. We repeatedly retry, but the OSCR is too fast for us - we never catch up, so we never break out of the loop - resulting in us never apparantly resuming. Fix this by doubling min_delta_ns. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] pxa: Don't wind OSCR backwards over suspend/resumeRussell King2008-01-261-9/+12
| | | | | | | | | OSCR is supposed to monotonically increment; however restoring it to a time prior to OSMR0 may result in it being wound backwards. Instead, if OSMR0 is within the minimum expiry time, wind OSMR0 forwards. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] pxa: remove periodic mode emulation supportRussell King2008-01-261-53/+8
| | | | | | | | | Apparantly, the generic time subsystem can accurately emulate periodic mode via the one-shot support code, so we don't need our own periodic emulation code anymore. Just ensure that we build support for one shot into the generic time subsystem. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] pxa: fix one-shot timer modeRussell King2007-11-081-9/+14
| | | | | | | | | | | | | | | | | One-shot timer mode on PXA has various bugs which prevent kernels build with NO_HZ enabled booting. They end up spinning on a permanently asserted timer interrupt because we don't properly clear it down - clearing the OIER bit does not stop the pending interrupt status. Fix this in the set_mode handler as well. Moreover, the code which sets the next expiry point may race with the hardware, and we might not set the match register sufficiently in the future. If we encounter that situation, return -ETIME so the generic time code retries. Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] pxa: shut up CLOCK_EVT_MODE_RESUME warningRussell King2007-10-311-0/+3
| | | | | | | | | Resolve: CC arch/arm/mach-pxa/time.o arch/arm/mach-pxa/time.c: In function `pxa_osmr0_set_mode': arch/arm/mach-pxa/time.c:154: warning: enumeration value `CLOCK_EVT_MODE_RESUME' not handled in switch Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] pxa: make pxa timer initialisation select clock rate at runtimeRussell King2007-10-121-3/+13
| | | | | | | | Rather than using the compile-time constant CLOCK_TICK_RATE, select the clock tick rate at run time. We organise the selection so that PXA3 automatically falls out with the right tick rate. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4550/1: sched_clock on PXA should cope with run time clock rate selectionNicolas Pitre2007-10-121-0/+39
| | | | | | | | | | | | The previous implementation was relying on compile time optimizations based on a constant clock rate. However, support for different PXA flavors in the same kernel binary requires that the clock be selected at run time, so here it is. Let's move this code to a more appropriate location while at it. Signed-off-by: Nicolas Pitre <npitre@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4507/1: pxa2xx clock_event_deviceBill Gatliff2007-07-221-130/+128
| | | | | | | | Reimplements arch/arm/mach-pxa/time.c using a clock_event_device based on OSMR0. Tested on PXA270, linux-2.6.22+arm:pxa patches. Signed-off-by: Bill Gatliff <bgat@billgatliff.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] pxa: remove boot time RTC initialisationRussell King2007-07-121-9/+0
| | | | | | | | | | The RTC library code contains everything necessary to set the system time from the RTC; for similar reasons as the previous commit, it's far better to let the RTC library code sort this out rather than implement something which might not be appropriate for everyone. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Add IRQF_IRQPOLL flag on armBernhard Walle2007-05-081-1/+1
| | | | | | | | | | | | Add IRQF_IRQPOLL for each timer interrupt. Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] clocksource: fixup is_continous changes on ARMThomas Gleixner2007-02-161-1/+1
| | | | | | | | | | | | Fixup the is_contionous replacement by a flag field. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Russell King <rmk@arm.linux.org.uk> Cc: john stultz <johnstul@us.ibm.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [ARM] 4064/1: make pxa_get_cycles() staticNicolas Pitre2006-12-301-4/+4
| | | | | | | ... and fix a comment as well. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4012/1: Clocksource for pxaSascha Hauer2006-12-131-22/+23
| | | | | | | | | Add a clocksource driver for pxa2xx systems Signed-off-by: Luotao Fu <lfu@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3940/1: don't reset PXA2xx clock counterNicolas Pitre2006-11-301-3/+4
| | | | | | | | | | Don't reset OSCR to zero as this prevents us from having a contiguous time source. The value returned by sched_clock() is reset to zero in the middle of the boot process otherwise, making CONFIG_PRINTK_TIME rather messed up. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Initial blind fixup for arm for irq changesLinus Torvalds2006-10-061-4/+4
| | | | | | | Untested, but this should fix up the bulk of the totally mechanical issues, and should make the actual detail fixing easier. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ARM: fixup irqflags breakage after ARM genirq mergeThomas Gleixner2006-07-021-1/+1
| | | | | | | | | | The irgflags consolidation did conflict with the ARM to generic IRQ conversion and was not applied for ARM. Fix it up. Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-301-1/+0
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [ARM] 3135/1: harden SA11x0 and PXA2xx timer init codeNicolas Pitre2005-11-081-3/+5
| | | | | | | | | | Patch from Nicolas Pitre Make it completely deterministic and leave nothing to chance (even if it had at worst 0.001% probability of failing). Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 2863/1: clarify comment in PXA2xx and SA1x00 timer codeNicolas Pitre2005-09-011-3/+4
| | | | | | | Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 2862/1: VST aka CONFIG_NO_IDLE_HZ support for PXA2xxNicolas Pitre2005-09-011-0/+51
| | | | | | | Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: Add SA_TIMER flag to timer interruptsRussell King2005-06-261-2/+2
| | | | | | | VST needs to know which timer handler is for the timer interrupt. Mark all timer interrupts with the SA_TIMER flag. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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