summaryrefslogtreecommitdiff
path: root/arch/arm/plat-omap/dmtimer.c
AgeCommit message (Collapse)AuthorFilesLines
2011-11-04ARM: OMAP: dmtimer: Include linux/module.hAxel Lin1-0/+1
Include linux/module.h to fix below build error: CC arch/arm/plat-omap/dmtimer.o arch/arm/plat-omap/dmtimer.c:184: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:184: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:184: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:215: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:215: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:215: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:228: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:228: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:228: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:234: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:234: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:234: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:240: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:240: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:240: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:248: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:248: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:248: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:294: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:294: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:294: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:302: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:302: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:302: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:316: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:316: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:316: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:344: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:344: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:344: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:361: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:361: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:361: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:380: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:380: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:380: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:406: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:406: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:406: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:443: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:443: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:443: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:468: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:468: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:468: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:494: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:494: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:494: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:517: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:517: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:517: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:534: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:534: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:534: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:549: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:549: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:549: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:561: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:561: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:561: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:572: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:572: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:572: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:587: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:587: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:587: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:604: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:604: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:604: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:746: error: expected declaration specifiers or '...' before string constant arch/arm/plat-omap/dmtimer.c:746: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:746: warning: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION' arch/arm/plat-omap/dmtimer.c:746: warning: function declaration isn't a prototype arch/arm/plat-omap/dmtimer.c:747: error: expected declaration specifiers or '...' before string constant arch/arm/plat-omap/dmtimer.c:747: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:747: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE' arch/arm/plat-omap/dmtimer.c:747: warning: function declaration isn't a prototype arch/arm/plat-omap/dmtimer.c:748: error: expected declaration specifiers or '...' before string constant arch/arm/plat-omap/dmtimer.c:748: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:748: warning: type defaults to 'int' in declaration of 'MODULE_ALIAS' arch/arm/plat-omap/dmtimer.c:748: warning: function declaration isn't a prototype arch/arm/plat-omap/dmtimer.c:749: error: expected declaration specifiers or '...' before string constant arch/arm/plat-omap/dmtimer.c:749: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:749: warning: type defaults to 'int' in declaration of 'MODULE_AUTHOR' arch/arm/plat-omap/dmtimer.c:749: warning: function declaration isn't a prototype make[1]: *** [arch/arm/plat-omap/dmtimer.o] Error 1 make: *** [arch/arm/plat-omap] Error 2 Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-10-01ARM: omap: use __devexit_p in dmtimer driverArnd Bergmann1-1/+1
The omap_dm_timer_remove function gets discarded when CONFIG_HOTPLUG is not set, so we must not reference it unconditionally. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-09-21ARM: OMAP: dmtimer: add error handling to export APIsTarun Kanti DebBarma1-25/+77
Add error handling code to export APIs. Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-09-21ARM: OMAP: dmtimer: low-power mode supportTarun Kanti DebBarma1-5/+105
Clock is enabled only when timer is started and disabled when the the timer is stopped. Therefore before accessing registers in functions clock is enabled and then disabled back at the end of access. Context save is done dynamically whenever the registers are modified. Context restore is called when context is lost. Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> [tony@atomide.com: updated to use revision instead of tidr] Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-09-21ARM: OMAP: dmtimer: skip reserved timersTony Lindgren1-0/+7
Pass the reserved flag in pdata and use it. We can now make sys_timer_reserved static to mach-omap2/timer.c. Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-09-21ARM: OMAP: dmtimer: pm_runtime supportTarun Kanti DebBarma1-23/+10
Add pm_runtime feature to dmtimer whereby *_runtime_get_sync() is called within omap_dm_timer_enable(), pm_runtime_put() is called in omap_dm_timer_disable(). In addition to calling pm_runtime_enable, we are calling pm_runtime_irq_safe so that they can be called from interrupt context. Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Signed-off-by: Partha Basak <p-basak2@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Cousson, Benoit <b-cousson@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-09-21ARM: OMAP: dmtimer: switch-over to platform device driverTarun Kanti DebBarma1-245/+101
Register timer devices by going through hwmod database using hwmod API. The driver probes each of the registered devices. Functionality which are already performed by hwmod framework are removed from timer code. New set of timers present on OMAP4 are now supported. Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Acked-by: Cousson, Benoit <b-cousson@ti.com> [tony@atomide.com: folded in spinlock changes, left out is_omap2] Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-09-21ARM: OMAP: dmtimer: platform driverTarun Kanti DebBarma1-6/+133
Add dmtimer platform driver functions which include: (1) platform driver initialization (2) driver probe function (3) driver remove function Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Signed-off-by: Thara Gopinath <thara@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Cousson, Benoit <b-cousson@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-09-21ARM: OMAP1: dmtimer: conversion to platform devicesTarun Kanti DebBarma1-44/+12
Convert OMAP1 dmtimers into a platform devices and then registers with device model framework so that it can be bound to corresponding driver. Signed-off-by: Thara Gopinath <thara@ti.com> Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Cousson, Benoit <b-cousson@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-09-19ARM: OMAP: Add support for dmtimer v2 ipTony Lindgren1-10/+22
The registers are slightly different between v1 and v2 ip that is available in omap4 and later for some timers. Add support for v2 ip by mapping the interrupt related registers separately and adding func_base for the functional registers. Also disable dmtimer driver features on omap4 for now as those need the hwmod conversion series to deal with enabling the timers properly in omap_dm_timer_init. Signed-off-by: Afzal Mohammed <afzal@ti.com> Tested-by: Hemant Pedanekar <hemantp@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-07-04OMAP4: DMTIMER: enable autoidle modeAmbresh K1-2/+2
Currently autoidle is only enabled for OMAP2/3; by enabling autoidle, the automatic L4 clock gating strategy is applied based on L4 activity, otherwise L4 clock to module will be a free running. Signed-off-by: Ambresh K <ambresh@ti.com> [tony@atomide.com: updated for timer init changes] Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-06-27omap2+: Reserve clocksource and timesource and initialize dmtimer laterTony Lindgren1-1/+9
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>
2011-06-20omap: Make a subset of dmtimer functions into inline functionsTony Lindgren1-61/+17
This will allow us to share the code between system timer and dmtimer device driver code without having to initialize all the dmtimers early. This change will also make the timer_set_next_event more efficient as the inline functions will optimize the code better for the timer reprogramming. Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-06-20omap: Move dmtimer defines to dmtimer.hTony Lindgren1-121/+0
These will be needed when dmtimer platform init code gets split for omap1 and omap2+. These will also be needed for separate sys_timer init and driver init for the rest of the hardware timers in the following patches. No functional changes. Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-03-10omap2/3: dmtimer: Enable autoidleTero Kristo1-0/+4
This saves some power. OMAP4 version should check for GPT module ID, as autoidle is only supported on a subset of these. Signed-off-by: Tero Kristo <tero.kristo@nokia.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-09-24omap4: Fix bootup crash observed with higher CPU clocksSantosh Shilimkar1-1/+1
This patch is temporary fix to below crash. This is observed when CPU is clocked more than 600 MHz. Unhandled fault: imprecise external abort (0x1406) at 0xbf9ef65c Internal error: : 1406 [#1] PREEMPT SMP last sysfs file: Modules linked in: CPU: 0 Not tainted (2.6.36-rc3+ #18) PC is at kernel_thread_helper+0x0/0x14 LR is at kernel_thread_helper+0x0/0x14 pc : [<c003ce14>] lr : [<c003ce14>] psr: 00000093 sp : dc83bff8 ip : 00000000 fp : 00000000 r10: 00000000 r9 : 00000000 r8 : 00000000 r7 : 00000013 r6 : c003ce28 r5 : c008935c r4 : 00000000 r3 : 00000000 r2 : 00000000 r1 : 00000000 r0 : 00000000 Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c53c7f Table: 8000404a DAC: 00000017 Process swapper (pid: 2, stack limit = 0xdc83a2f0) Stack: (0xdc83bff8 to 0xdc83c000) bfe0: 00000000 ffffffff [<c003ce14>] (kernel_thread_helper+0x0/0x14) from [<fffffffe>] (0xfffffffe) Code: c03a0ba3 c03a5fcb c045c880 c0394035 (eb017701) ---[ end trace 1b75b31a2719ed1c ]--- The timer hwmod adaptation will eventually fix it in a proper way. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2010-06-10omap: DMTIMER: Ack pending interrupt always when stopping a timerTero Kristo1-3/+3
The kernel timer queue is being run currently from a GP timer running in a one shot mode, which works in a way that when it expires, it will also stop. Usually during this situation, the interrupt handler will ack the interrupt, load a new value to the timer and start it again. During suspend, the situation is slightly different, as we disable interrupts just before timekeeping is suspended, which leaves a small window where the timer can expire before it is stopped, and will leave the interrupt flag pending. This pending interrupt will prevent ARM sleep entry, thus now we ack it always when we are attempting to stop a timer. Signed-off-by: Tero Kristo <tero.kristo@nokia.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> [tony@atomide.com: removed the ifdef to make the patch cover omap1 also] Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-05-20OMAP: timers: Fix clock source names for OMAP4Rajendra Nayak1-2/+2
The clock sources for timers on OMAP4 (system clock and 32k clock) have their names wronly populated. This patch fixes them so the omap_dm_timer_set_source does not fail anymore. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2010-02-23omap4: Use irq line defines from irq-44xx.hSantosh Shilimkar1-12/+12
This patch removes all the omap4 specific irq line defines from plat/irqs.h and includes auto-generated irqs-44xx.h All the legacy naming style defines are replaced with the one from irqs-44xx.h Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com> Reviewed-by: Paul Walmsley <paul@pwsan.com> [tony@atomide.com: updated to compile with usb-musb.c] Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-15omap2/3/4: Replace orred CONFIG_ARCH_OMAP2/3/4 with CONFIG_ARCH_OMAP2PLUSTony Lindgren1-8/+4
omap: Replace orred CONFIG_ARCH_OMAP2/3/4 with CONFIG_ARCH_OMAP2PLUS Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-15omap: Fix dmtimer.c for multi-omap bootTony Lindgren1-51/+39
Fix dmtimer.c for multi-omap boot. Also remove legacy clk_enable/disable wrappers that are no longer needed. Note that the clock handling should be further improved to make use of the clock aliases. Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-01-21OMAP2/3: DMTIMER: Clear pending interrupts when stopping a timerTero Kristo1-0/+13
OMAP GP timers keep running for a few cycles after they are stopped, which can cause the timer to expire and generate an interrupt. The pending interrupt will prevent e.g. OMAP from entering suspend, thus we ack it manually. Only applicable on OMAP2/3/4. Signed-off-by: Tero Kristo <tero.kristo@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.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 in dmtimer.cTony Lindgren1-7/+9
Use ioremap in dmtimer.c 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/+4
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>
2009-05-28ARM: OMAP4: Add minimal support for omap4Santosh Shilimkar1-3/+56
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>
2009-05-25ARM: OMAP: Remove unwanted type casts and fix the compiler warning.Santosh Shilimkar1-7/+7
This patch fixes the compiler warning "assignment from incompatible pointer type" in dmtimer.c and removes the tye casts. These warnings were suppressed by type catsing. The proposed fix was suggested by Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-04-23OMAP2/3 GPTIMER: allow system tick GPTIMER to be changed in board-*.c filesPaul Walmsley1-6/+14
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>
2009-04-23OMAP: dmtimer: enable all timers to be wakeup eventsKevin Hilman1-4/+2
All GP timers on OMAP2/3 can generate wakeup events. The wakeup status is cleared in the PRCM interrupt handler. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-04-23OMAP3 GPTIMER: fix GPTIMER12 IRQPaul Walmsley1-1/+1
GPTIMER12 IRQ is at IRQ 95 on OMAP3, unlike OMAP2. (ref: OMAP34xx Multimedia High Security (HS) Device Silicon Revision 3.0 Security Addendum Rev. B, SWPU119B) Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-03-23ARM: OMAP: Export dmtimer functionsTimo Kokkonen1-0/+26
Make the dmtimer function symbols available so modules can take use of them. Signed-off-by: Timo Kokkonen <timo.t.kokkonen@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-10ARM: OMAP2: skip unnecessary TLDR write during non-autoreload for gptimerPaul Walmsley1-3/+4
The GPTIMER TLDR register does not need to be written if the GPTIMER is not in autoreload mode. This is the usual case for dynamic tick-enabled kernels. Simulation data indicate that skipping the read that occurs as part of the write should save at least 300-320 ns for each GPTIMER1 timer reprogram. (This assumes L4-Wakeup is at 19MHz and GPTIMER write posting is enabled.) Skipping the write itself probably won't have much impact since it should be posted on the OCP interconnect. Tested on 2430SDP and 3430SDP. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Richard Woodruff <r-woodruff2@ti.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-10ARM: OMAP2: drop redundant pending write check for gptimerPaul Walmsley1-4/+0
omap_dm_timer_write_reg() already waits for pending writes to complete, so the extra wait in omap_dm_timer_set_load() is superfluous. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Richard Woodruff <r-woodruff2@ti.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-10-14Merge branch 'omap-all' into develRussell King1-1/+1
Conflicts: arch/arm/mach-omap2/gpmc.c arch/arm/mach-omap2/irq.c
2008-09-06[ARM] Convert asm/io.h to linux/io.hRussell King1-1/+1
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-05[ARM] omap: Fix IO_ADDRESS() macrosRussell King1-1/+1
OMAP1_IO_ADDRESS(), OMAP2_IO_ADDRESS() and IO_ADDRESS() returns cookies for use with __raw_{read|write}* for accessing registers. Therefore, these macros should return (void __iomem *) cookies, not integer values. Doing this improves typechecking, and means we can find those places where, eg, DMA controllers are incorrectly given virtual addresses to DMA to, or physical addresses are thrown through a virtual to physical address translation. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King1-3/+3
This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07[ARM] Remove asm/hardware.h, use asm/arch/hardware.h insteadRussell King1-1/+1
Remove includes of asm/hardware.h in addition to asm/arch/hardware.h. Then, since asm/hardware.h only exists to include asm/arch/hardware.h, update everything to directly include asm/arch/hardware.h and remove asm/hardware.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03ARM: OMAP: DMTimer: Optimize by adding load and startRichard Woodruff1-1/+18
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>
2008-07-03ARM: OMAP: DMTimer: Use posted modeRichard Woodruff1-42/+151
This patch adds the use of write posting for the timer. Previously, every write could lock the requestor for almost 3x32KHz cycles. This patch only synchronizes before writes and reads instead of after them and it does it on per register basis. Doing it this way there is some chance to hide some of the sync latency. It also removes some needless reads when non-posted mode is there. With out this fix the read/writes take almost 2% CPU load @500MHz just waiting on tick timer registers. Also define new 34xx only registers. Signed-off-by: Richard Woodruff <r-woodruff2@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-03-06[ARM] replace remaining __FUNCTION__ occurrencesHarvey Harrison1-1/+1
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-08ARM: OMAP: Add dmtimer support for OMAP3Syed Mohammed, Khasim1-4/+47
Add DM timer support for OMAP3. Fixed source clocks for 3430 by Paul Walmsley <paul@pwsan.com>. Signed-off-by: Syed Mohammed Khasim <x0khasim@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-02-08ARM: OMAP: Pre-3430 clean-up for dmtimer.cSyed Mohammed, Khasim1-24/+41
Cleanup DM timer list for OMAP2 and OMAP1 to allow adding support for 3430. Signed-off-by: Syed Mohammed Khasim <x0khasim@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2007-08-22ARM: OMAP: fix OMAP1 dmtimer build warningDavid Brownell1-5/+0
Remove the OMAP1 version of omap_dm_timer_get_fclk(), and its associated compile-time warning. It would only BUG() if called, while it's only called on OMAP2. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2007-05-08ARM: OMAP: Sync core code with linux-omapTony Lindgren1-1/+1
This patch syncs omap specific core code with linux-omap. Most of the changes are needed to fix bitrot caused by driver updates in linux-omap tree. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-05ARM: OMAP: plat-omap changes for 2430 SDPSyed Mohammed Khasim1-0/+2
This patch adds minimal OMAP2430 support to plat-omap files to get the kernel booting on 2430SDP. Signed-off-by: Syed Mohammed Khasim <x0khasim@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-03-02ARM: OMAP: dmtimer.c omap1 register fixMatthew Percival1-2/+2
When I went to use dmtimer7 it did not seem to work. I noticed that the base addresses for dmtimers 7 and 8 were set wrong. A simple patch to correct a small error. Confirmed to fix the problem on an OSK. Signed-off-by: Matthew Percival <matthew@capgo.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2007-03-02ARM: OMAP: Fix warnings in plat-omapDirk Behme1-0/+2
Fix warnings arch/arm/plat-omap/dmtimer.c: In function 'omap_dm_timer_modify_idlect_mask': arch/arm/plat-omap/dmtimer.c:317: warning: no return statement in function returning non-void arch/arm/plat-omap/mailbox.c: In function 'omap_mbox_init': arch/arm/plat-omap/mailbox.c:231: warning: ignoring return value of 'class_device_create_file', declared with attribute warn_unused_result Signed-off-by: Dirk Behme <dirk.behme_at_gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-09-25ARM: OMAP: OMAP2 dmtimer power management supportJuha Yrjola1-1/+9
GPT1 will be set into non-posted mode, and the wakeup register is set for all timers. Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2006-09-25ARM: OMAP: Add enable/disable functions for dmtimerTimo Teras1-42/+31
Add enable/disable functions which effectively control the GPT iclk and fclk. 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>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 04:38:36 +0000