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2011-06-27omap2+: Rename timer-gp.c into timer.c to combine timer init functionsTony Lindgren1-342/+0
We can keep everything sys_timer and gptimer.c related code in timer.c as the code will be very minimal. Later on we can also remove timer-mpu.c, as it can be called from omap4_timer_init function. This allows us to get rid of confusing existing files. We currently have timer-gp.c, timer-mpu.c, and patches have been posted to add dmtimer.c. There's no need to have these multiple files, we can put everything into timer.c. Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-06-27omap2+: Remove omap2_gp_clockevent_set_gptimerTony Lindgren1-26/+0
This is no longer needed as we now just set the desired .timer in MACHINE_START. We can now also remove timer-gp.h. Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-06-27omap2+: Use dmtimer macros for clocksourceTony Lindgren1-28/+36
Use dmtimer macros for clocksource. As with the clockevent, this allows us to initialize the rest of dmtimer code later on. Note that eventually we will be initializing the timesource from init_early so sched_clock will work properly for CONFIG_PRINTK_TIME. Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-06-27omap2+: Reserve clocksource and timesource and initialize dmtimer laterTony Lindgren1-2/+4
There's no need to initialize the dmtimer framework early. Just mark the clocksource and timesource as reserved, and initialize dmtimer with an arch_initcall. Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-06-20omap2+: Remove gptimer_wakeup for nowTony Lindgren1-7/+1
This removes the support for setting the wake-up timer for debugging. Later on we can reserve gptimer1 for PM code only and have similar functionality. Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-06-20omap2+: Use dmtimer macros for clockeventTony Lindgren1-35/+112
This patch makes timer-gp.c to use only a subset of dmtimer functions without the need to initialize dmtimer code early. Also note that now with the inline functions, timer_set_next_event becomes more efficient in the lines of assembly code. Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-06-20omap: Set separate timer init functions to avoid cpu_is_omap testsTony Lindgren1-10/+31
This is needed for the following patches so we can initialize the rest of the hardware timers later on. As with the init_irq calls, there's no need to do cpu_is_omap calls during the timer init as we only care about the major omap generation. This means that we can initialize the sys_timer with the .timer entries alone. Note that for now we just set stubs for the various sys_timer entries that will get populated in a later patch. The following patches will also remove the omap_dm_timer_init calls and change the init for the rest of the hardware timers to happen with an arch_initcall. Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-03-02Merge branch 'devel-cleanup' into omap-for-linusTony Lindgren1-0/+13
Conflicts: arch/arm/mach-omap2/timer-gp.c
2011-02-28OMAP2+: clockevent: set up GPTIMER clockevent hwmod right before timer initPaul Walmsley1-1/+6
Set up the GPTIMER hwmod used for the clockevent source immediately before it is used. This avoids the need to set up all of the hwmods until the boot process is further along. (In general, we want to defer as much as possible until late in the boot process.) This second version fixes a bug pointed out by Santosh Shilimkar <santosh.shilimkar@ti.com>, that would cause the kernel to use an incorrect timer hwmod name if the selected GPTIMER was not 1 or 12 - thanks Santosh. Also, Tarun Kanti DebBarma <tarun.kanti@ti.com> pointed out that the original patch did not apply cleanly; this has now been fixed. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoît Cousson <b-cousson@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Tarun Kanti DebBarma <tarun.kanti@ti.com>
2011-02-24OMAP2+: clocksource: fix crash on boot when !CONFIG_OMAP_32K_TIMERPaul Walmsley1-0/+13
OMAP2+ kernels built without CONFIG_OMAP_32K_TIMER crash on boot after the 2.6.38 sched_clock changes: [ 0.000000] OMAP clockevent source: GPTIMER1 at 13000000 Hz [ 0.000000] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 0.000000] pgd = c0004000 [ 0.000000] [00000000] *pgd=00000000 [ 0.000000] Internal error: Oops: 80000005 [#1] SMP [ 0.000000] last sysfs file: [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 Not tainted (2.6.38-rc5-00057-g04aa67d #152) [ 0.000000] PC is at 0x0 [ 0.000000] LR is at sched_clock_poll+0x2c/0x3c Without CONFIG_OMAP_32K_TIMER, the kernel has an clockevent and clocksource resolution about three orders of magnitude higher than with CONFIG_OMAP_32K_TIMER set. The tradeoff is that the lowest power consumption states are not available. Fix by calling init_sched_clock() from the GPTIMER clocksource init code. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-01-18OMAP: counter_32k: init clocksource as part of machine timer initPaul Walmsley1-2/+8
After commit dc548fbbd2ecd0fc3b02301d551e5f8e19ae58fd ("ARM: omap: convert sched_clock() to use new infrastructure"), OMAPs that use the 32KiHz "synchronization timer" as their clocksource crash during boot: [ 0.000000] OMAP clockevent source: GPTIMER1 at 32768 Hz [ 0.000000] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 0.000000] pgd = c0004000 [ 0.000000] [00000000] *pgd=00000000 [ 0.000000] Internal error: Oops: 80000005 [#1] SMP [ 0.000000] last sysfs file: [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 Tainted: G W (2.6.37-07734-g2467802 #7) [ 0.000000] PC is at 0x0 [ 0.000000] LR is at sched_clock_poll+0x2c/0x3c [ 0.000000] pc : [<00000000>] lr : [<c0060b74>] psr: 600001d3 [ 0.000000] sp : c058bfd0 ip : c058a000 fp : 00000000 [ 0.000000] r10: 00000000 r9 : 411fc092 r8 : 800330c8 [ 0.000000] r7 : c05a08e0 r6 : c0034c48 r5 : c05ffc40 r4 : c0034c4c [ 0.000000] r3 : c05ffe6c r2 : c05a0bc0 r1 : c059f098 r0 : 00000000 [ 0.000000] Flags: nZCv IRQs off FIQs off Mode SVC_32 ISA ARM Segment kernel [ 0.000000] Control: 10c53c7f Table: 8000404a DAC: 00000017 This is due to the recent ARM init_sched_clock() changes and the late initialization of the counter_32k clock source. More information here: http://marc.info/?l=linux-omap&m=129513468605208&w=2 Fix by initializing the counter_32k clocksource during the machine timer initialization. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Tested-by: Thomas Weber <weber@corscience.de> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-01-06Merge branch 'omap-for-linus' of ↵Linus Torvalds1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (243 commits) omap2: Make OMAP2PLUS select OMAP_DM_TIMER OMAP4: hwmod data: Fix alignment and end of line in structurefields OMAP4: hwmod data: Move the DMA structures OMAP4: hwmod data: Move the smartreflex structures OMAP4: hwmod data: Fix missing SIDLE_SMART_WKUP in smartreflexsysc arm: omap: tusb6010: add name for MUSB IRQ arm: omap: craneboard: Add USB EHCI support omap2+: Initialize serial port for dynamic remuxing for n8x0 omap2+: Add struct omap_board_data and use it for platform level serial init omap2+: Allow hwmod state changes to mux pads based on the state changes omap2+: Add support for hwmod specific muxing of devices omap2+: Add omap_mux_get_by_name OMAP2: PM: fix compile error when !CONFIG_SUSPEND MAINTAINERS: OMAP: hwmod: update hwmod code, data maintainership OMAP4: Smartreflex framework extensions OMAP4: hwmod: Add inital data for smartreflex modules. OMAP4: PM: Program correct init voltages for scalable VDDs OMAP4: Adding voltage driver support OMAP4: Register voltage PMIC parameters with the voltage layer OMAP3: PM: Program correct init voltages for VDD1 and VDD2 ... Fix up trivial conflict in arch/arm/plat-omap/Kconfig
2010-12-22ARM: omap: update clock source registrationRussell King1-4/+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: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-24arm: omap2: timer-gp: delete unused variableAaro Koskinen1-2/+1
Delete a redundant local variable. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-10-08OMAP2plus: Fix static function warningsManjunath Kondaiah G1-0/+2
This patch fixes sparse warnings due non declarations of static functions. arch/arm/mach-omap2/timer-gp.c:115:12: warning: symbol 'omap2_gp_clockevent_set_gptimer' was not declared. Should it be static? arch/arm/mach-omap2/powerdomain.c:993:5: warning: symbol 'pwrdm_set_lowpwrstchange' was not declared. Should it be static? arch/arm/mach-omap2/board-flash.c:141:8: warning: symbol 'board_nand_init' was not declared. Should it be static? arch/arm/mach-omap2/board-n8x0.c:416:6: warning: symbol 'n8x0_mmc_slot1_cover_handler' was not declared. Should it be static? arch/arm/mach-omap2/board-n8x0.c:544:13: warning: symbol 'n8x0_mmc_init' was not declared. Should it be static? arch/arm/mach-omap2/board-rx51-peripherals.c:902:13: warning: symbol 'rx51_peripherals_init' was not declared. Should it be static? arch/arm/mach-omap2/board-rx51-video.c:107:13: warning: symbol 'rx51_video_mem_init' was not declared. Should it be static? arch/arm/mach-omap2/board-zoom-debugboard.c:155:12: warning: symbol 'zoom_debugboard_init' was not declared. Should it be static? arch/arm/mach-omap2/board-zoom-peripherals.c:280:13: warning: symbol 'zoom_peripherals_init' was not declared. Should it be static? arch/arm/mach-omap2/board-igep0020.c:110:13: warning: symbol 'igep2_flash_init' was not declared. Should it be static? arch/arm/mach-omap2/board-am3517evm.c:109:6: warning: symbol 'am3517_evm_ethernet_init' was not declared. Should it be static? drivers/mtd/onenand/omap2.c:577:5: warning: symbol 'omap2_onenand_rephase' was not declared. Should it be static? Signed-off-by: Manjunath Kondaiah G <manjugk@ti.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-09-20omap: Fix CONFIG_LOCAL_TIMERS initialization for multi-omapTony Lindgren1-2/+4
Fix CONFIG_LOCAL_TIMERS initialization for multi-omap Signed-off-by: Tony Lindgren <tony@atomide.com> Acked-By: Santosh Shilimkar <santosh.shilimkar@ti.com>
2010-02-24OMAP4: clock: Remove clock hacks from timer-gp.cSantosh Shilimkar1-5/+0
Now the omap4 clock framework is in mainline and clk_get_rate() is functional. Hence reomve the hardcoded clock hacks. This patch also fixes Division by zero in kernel. Backtrace: [<c0025fb8>] (dump_backtrace+0x0/0x110) from [<c017febc>] (dump_stack+0x18/0x1c) r7:60000093 r6:c0641050 r5:c0223e78 r4:c02126b4 [<c017fea4>] (dump_stack+0x0/0x1c) from [<c00260fc>] (__div0+0x18/0x20) [<c00260e4>] (__div0+0x0/0x20) from [<c01431fc>] (Ldiv0+0x8/0x10) [<c00318d4>] (omap_dm_timer_stop+0x0/0xb0) from [<c002c148>] (omap2_gp_timer_set_mode+0x1c/0x68) r5:c0223e78 r4:00000000 [<c002c12c>] (omap2_gp_timer_set_mode+0x0/0x68) from [<c0063270>] (clockevents_set_mode+0x30/0x64) r5:c020cae0 r4:00000000 [<c0063240>] (clockevents_set_mode+0x0/0x64) from [<c00632fc>] (clockevents_exchange_device+0x30/0x9c) r5:c020cae0 r4:c02146e0 [<c00632cc>] (clockevents_exchange_device+0x0/0x9c) from [<c00636e0>] (tick_notify+0x17c/0x404) r7:00000000 r6:c0641050 r5:00000000 r4:c020cae0 [<c0063564>] (tick_notify+0x0/0x404) from [<c005d5fc>] (notifier_call_chain+0x34/0x78) [<c005d5c8>] (notifier_call_chain+0x0/0x78) from [<c005d684>] (__raw_notifier_call_chain+0x1c/0x24) [<c005d668>] (__raw_notifier_call_chain+0x0/0x24) from [<c005d6ac>] (raw_notifier_call_chain+0x20/0x28) [<c005d68c>] (raw_notifier_call_chain+0x0/0x28) from [<c0062e78>] (clockevents_do_notify+0x1c/0x24) [<c0062e5c>] (clockevents_do_notify+0x0/0x24) from [<c0062f18>] (clockevents_register_device+0x98/0xd0) [<c0062e80>] (clockevents_register_device+0x0/0xd0) from [<c001a194>] (percpu_timer_setup+0x80/0x9c) r7:00000000 r6:00000002 r5:00000002 r4:00000003 [<c001a114>] (percpu_timer_setup+0x0/0x9c) from [<c000e9f0>] (smp_prepare_cpus+0xb0/0xe8) [<c000e940>] (smp_prepare_cpus+0x0/0xe8) from [<c00084e8>] (kernel_init+0x5c/0x1fc) r7:00000000 r6:00000000 r5:00000000 r4:c001b8a4 [<c000848c>] (kernel_init+0x0/0x1fc) from [<c0046c50>] (do_exit+0x0/0x604) r7:00000000 r6:00000000 r5:00000000 r4:00000000 Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-11-11PM debug: allow configurable wakeup from suspend on OMAP GPtimerKevin Hilman1-0/+2
Using debugfs, export a configurable wakeup timer to be used to wakeup system from suspend. If a non-zero value is written to /debug/pm_debug/wakeup_timer_seconds, A timer wakeup event will wake the system and resume after the configured number of seconds. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-10-20omap: headers: Move remaining headers from include/mach to include/platTony Lindgren1-1/+1
Move the remaining headers under plat-omap/include/mach to plat-omap/include/plat. Also search and replace the files using these headers to include using the right path. This was done with: #!/bin/bash mach_dir_old="arch/arm/plat-omap/include/mach" plat_dir_new="arch/arm/plat-omap/include/plat" headers=$(cd $mach_dir_old && ls *.h) omap_dirs="arch/arm/*omap*/ \ drivers/video/omap \ sound/soc/omap" other_files="drivers/leds/leds-ams-delta.c \ drivers/mfd/menelaus.c \ drivers/mfd/twl4030-core.c \ drivers/mtd/nand/ams-delta.c" for header in $headers; do old="#include <mach\/$header" new="#include <plat\/$header" for dir in $omap_dirs; do find $dir -type f -name \*.[chS] | \ xargs sed -i "s/$old/$new/" done find drivers/ -type f -name \*omap*.[chS] | \ xargs sed -i "s/$old/$new/" for file in $other_files; do sed -i "s/$old/$new/" $file done done for header in $(ls $mach_dir_old/*.h); do git mv $header $plat_dir_new/ done Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-10-19omap: Use ioremap for omap4 L4 codeTony Lindgren1-1/+2
Use ioremap for omap4 L4 code Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-08-28OMAP: Remove OMAP_IO_ADDRESS, use OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS insteadTony Lindgren1-1/+1
Search and replace OMAP_IO_ADDRESS with OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS, and convert omap_read/write into a functions instead of a macros. Also rename OMAP_MPUIO_VBASE to OMAP1_MPUIO_VBASE. In the long run, most code should use ioremap + __raw_read/write instead. Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-06-09ARM: OMAP4: SMP: Add mpu timer support for OMAP4430Santosh Shilimkar1-0/+4
This patch adds SMP platform specific parts for local(mpu) timer support for OMAP4430 platform. Each Cortex-a9 core has it's own local timer in the MPU domain. These timers are not in wakeup domain. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2009-05-28ARM: OMAP4: Add minimal support for omap4Santosh Shilimkar1-2/+7
This patch adds the support for OMAP4. The platform and machine specific headers and sources updated for OMAP4430 SDP platform. OMAP4430 is Texas Instrument's SOC based on ARM Cortex-A9 SMP architecture. It's a dual core SOC with GIC used for interrupt handling and SCU for cache coherency. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-04-24Merge branch 'omap-clock-fixes' into omap-fixesTony Lindgren1-3/+45
2009-04-23OMAP2/3 GPTIMER: allow system tick GPTIMER to be changed in board-*.c filesPaul Walmsley1-3/+45
Add a function omap2_gp_clockevent_set_gptimer() for board-*.c files to use in .init_irq functions to configure the system tick GPTIMER. Practical choices at this point are GPTIMER1 or GPTIMER12. Both of these timers are in the WKUP powerdomain, and so are unaffected by chip power management. GPTIMER1 can use sys_clk as a source, for applications where a high-resolution timer is more important than power management. GPTIMER12 has the special property that it has the secure 32kHz oscillator as its source clock, which may be less prone to glitches than the off-chip 32kHz oscillator. But on HS devices, it may not be available for Linux use. It appears that most boards are fine with GPTIMER1, but BeagleBoard should use GPTIMER12 when using a 32KiHz timer source, due to hardware bugs in revisions B4 and below. Modify board-omap3beagle.c to use GPTIMER12. This patch originally used a Kbuild config option to select the GPTIMER, but was changed to allow this to be specified in board-*.c files, per Tony's request. Kalle Vallo <kalle.valo@nokia.com> found a bug in an earlier version of this patch - thanks Kalle. Tested on Beagle rev B4 ES2.1, with and without CONFIG_OMAP_32K_TIMER, and 3430SDP. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Cc: Kalle Valo <kalle.valo@nokia.com>
2009-04-21clocksource: pass clocksource to read() callbackMagnus Damm1-1/+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>
2009-01-29ARM: OMAP: gptimer min_delta_ns correctedAaro Koskinen1-1/+2
When 32 kHz timer is used the min_delta_ns should be initialized so that it reflects the timer programming cost. A write to the timer device will be usually posted, but it takes roughly 3 cycles before it is effective. If the timer is reprogrammed before that, the CPU will stall until the previous write completes. This was pointed out by Richard Woodruff. Since the lower bound for min_delta_ns is 1000, the change is visible only with tick rates less than 3 MHz. Also note that the old value is incorrect for 32 kHz also due to a rounding error, and it can cause the timer queue to hang (due to clockevent code trying to program the timer with zero ticks). Signed-off-by: Aaro Koskinen <Aaro.Koskinen@nokia.com> Reviewed-by: Richard Woodruff <r-woodruff2@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-13cpumask: convert struct clock_event_device to cpumask pointers.Rusty Russell1-1/+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>
2008-08-07[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King1-1/+1
This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03ARM: OMAP: DMTimer: Optimize by adding load and startRichard Woodruff1-6/+3
This patch optimizes the timer load and start sequence. By combining the load and start a needless posted wait can be removed from the system timer execution path. * Before patch register writes are taking up .078% @ 500MHz during idle. Address |total |min |max |avr |count|ratio% old\process\default_idle|7.369s |0.0us|999.902ms|14.477ms|509. |62.661% ld\Global\cpu_v7_do_idle|4.265s |0.0us|375.786ms|24.374ms|175. |36.270% (UNKNOWN)|17.503ms|0.us|531.080us|5.119us|3419. |0.148% r\omap_dm_timer_set_load|8.135ms|0.0us|79.887us|15.065us|540. |0.069% <-- \vmlinux-old\Global\_end|2.023ms|0.0us|4.000us|0.560us|3613. |0.017% -old\Global\__raw_readsw|1.962ms|0.0us|108.610us|9.167us|214. |0.016% old\smc91x\smc_interrupt|1.353ms|0.0us|10.212us|2.348us|576. |0.011% s/namei\__link_path_walk|1.161ms|0.0us|4.310us|0.762us| 1524. |0.009% \omap_dm_timer_write_reg|1.085ms|0.0us|126.150us|2.153us|504. |0.009% <-- * After patch timer functions do not show up in top listings for long captures. Signed-off-by: Richard Woodruff <r-woodruff2@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-04-14ARM: OMAP: Timer32K: Re-organize duplicated 32k-timer codeKevin Hilman1-15/+137
On OMAP2/3, the gp-timer code can be used for a 32kHz timer simply by setting the source to be the 32k clock instead of sys_clk. This patch uses the mach-omap2/timer-gp.c code for 32kHz timer on OMAP2, moving the logic into mach-omap2/timer-gp.c, and not using plat-omap/timer32k.c which, for OMAP2, is redundant with the timer-gp code. Also, if CONFIG_OMAP_32K_TIMER is enabled, the gptimer-based clocksource is not used. Instead the default 32k sync counter is used as the clocksource (see the clocksource in plat-omap/common.c.) This is important for sleep/suspend so there is a valid counter during sleep. Note that the suspend/sleep code needs fixing to check for overflows of this counter. In addition, the OMAP2/3 details are removed from timer32k.c leaving that with only OMAP1 specifics. A follow-up patch will move it from plat-omap common code to mach-omap1. Signed-off-by: Kevin Hilman <khilman@mvista.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-01-28[ARM] Fix timer damage from d3d74453c34f8fd87674a8cf5b8a327c68f22e99Russell King1-4/+0
Move the xtime write mode seqlock into timer_tick(), so it only surrounds the call to do_timer(). This avoids a deadlock in update_process_times() ... hrtimer_get_softirq_time() which tries to get a read mode seqlock on xtime, thereby preventing booting. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-10-19Convert files to UTF-8 and some cleanupsJan Engelhardt1-1/+1
* Convert files to UTF-8. * Also correct some people's names (one example is Eißfeldt, which was found in a source file. Given that the author used an ß at all in a source file indicates that the real name has in fact a 'ß' and not an 'ss', which is commonly used as a substitute for 'ß' when limited to 7bit.) * Correct town names (Goettingen -> Göttingen) * Update Eberhard Mönkeberg's address (http://lkml.org/lkml/2007/1/8/313) Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-05-08Add IRQF_IRQPOLL flag on armBernhard Walle1-1/+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>
2007-03-02ARM: OMAP: omap GP timer: HZ != 100David Brownell1-1/+1
Teach OMAP2 gp timer that HZ isn't always 100. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2007-03-02ARM: OMAP: Fix warning in mach-omap2Dirk Behme1-0/+1
Fix warning arch/arm/mach-omap2/timer-gp.c: In function 'omap2_gp_timer_init': arch/arm/mach-omap2/timer-gp.c:70: warning: implicit declaration of function 'setup_irq' Signed-off-by: Dirk Behme <dirk.behme_at_gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-10-06Initial blind fixup for arm for irq changesLinus Torvalds1-3/+2
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>
2006-07-02[PATCH] ARM: fixup irqflags breakage after ARM genirq mergeThomas Gleixner1-1/+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>
2006-06-26ARM: OMAP: Fix 32 kHz timer and modify GP timer to use GPT1Timo Teras1-1/+1
The dmtimer framework update broke 32 kHz timer as udelay() does not work before system timer is started (and GPT1 should not be reset). This also makes the GP timer use GPT1. This requires a fix in clock framework. Signed-off-by: Timo Teras <timo.teras@solidboot.com> Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-06-26ARM: OMAP: Port dmtimers to OMAP2 and implement PWM supportTimo Teras1-68/+18
Port dmtimer framework to OMAP2. Modify the dmtimers API to support setting of PWM configuration and prescaler. Convert 32 kHz timer and GP timer to use the dmtimer framework. Signed-off-by: Timo Teras <timo.teras@solidboot.com> Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-01-17ARM: OMAP: 4/4 Fix clock framework to use clk_enable/disable miscTony Lindgren1-1/+1
This patch fixes OMAP clock framework to use clk_enable/disable instead of clk_use/unuse as specified in include/linux/clk.h. Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-01-07[ARM] Move asm/hardware/clock.h to linux/clk.hRussell King1-1/+2
This is needs to be visible to other architectures using the AMBA bus and peripherals. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-10[ARM] 3145/1: OMAP 3a/5: Add support for omap24xxTony Lindgren1-0/+126
Patch from Tony Lindgren This patch adds support for omap24xx series of processors. The files live in arch/arm/mach-omap2, and share common files with omap15xx and omap16xx processors in arch/arm/plat-omap. Omap24xx support was originally added for 2.6.9 by TI. This code was then improved and integrated to share common code with omap15xx and omap16xx processors by various omap developers, such as Paul Mundt, Juha Yrjola, Imre Deak, Tony Lindgren, Richard Woodruff, Nishant Menon, Komal Shah et al. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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