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linux-stable/arch/arm
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Jean Pihet 46e130d298 ARM: pm: omap3: run the ASM sleep code from DDR 
Most of the ASM sleep code (in arch/arm/mach-omap2/sleep34xx.S)
is copied to internal SRAM at boot and after wake-up from CORE OFF
mode.  However only a small part of the code really needs to run from
internal SRAM.

This fix lets most of the ASM idle code run from the DDR in order to
minimize the SRAM usage and the overhead in the code copy.

The only pieces of code that are mandatory in SRAM are:
- the i443 erratum WA,
- the i581 erratum WA,
- the security extension code.

SRAM usage:
- original code:
  . 560 bytes for omap3_sram_configure_core_dpll (used by DVFS),
  . 852 bytes for omap_sram_idle (used by suspend/resume in RETention),
  . 124 bytes for es3_sdrc_fix (used by suspend/resume in OFF mode on ES3.x),
  . 108 bytes for save_secure_ram_context (used on HS parts only).

With this fix the usage for suspend/resume in RETention goes down 288
bytes, so the gain in SRAM usage for suspend/resume is 564 bytes.

Also fixed the SRAM initialization sequence to avoid an unnecessary
copy to SRAM at boot time and for readability.

Tested on Beagleboard (ES2.x) in idle with full RET and OFF modes.

Kevin Hilman tested retention and off on 3430/n900, 3530/Overo and
3630/Zoom3

Signed-off-by: Jean Pihet <j-pihet@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-29 19:07:47 +01:00
..
boot ARM: 6961/1: zImage: Add build-time check for correctly-sized proc_type entries 2011-06-21 11:33:20 +01:00
common Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable 2011-05-25 21:47:48 +01:00
configs rtc: fix build warnings in defconfigs 2011-06-15 20:04:02 -07:00
include/asm ARM: pm: ensure our temporary page table entry is removed from the TLB 2011-06-24 09:54:39 +01:00
kernel ARM: pm: hide 1st and 2nd arguments to cpu_suspend from platform code 2011-06-24 09:54:39 +01:00
lib ARM: 6945/1: Add unwinding support for division functions 2011-05-27 22:56:53 +01:00
mach-at91 at91: drop at572d940hf support 2011-05-25 23:04:35 +08:00
mach-bcmring ARM: bcmring: convert to use sp804 clockevents 2011-05-23 18:04:54 +01:00
mach-clps711x arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-cns3xxx
mach-davinci davinci: make PCM platform devices static 2011-06-08 14:41:37 +05:30
mach-dove ARM: dove: Consolidate mpp code with platform mpp. 2011-05-16 15:49:31 -04:00
mach-ebsa110 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-ep93xx ep93xx: set DMA masks for the ep93xx_eth 2011-06-11 16:25:15 -07:00
mach-exynos4 ARM: pm: samsung: move cpu_suspend into C code 2011-06-24 08:48:44 +01:00
mach-footbridge ARM: footbridge: fix clock event support 2011-06-11 00:46:17 +01:00
mach-gemini Merge git://git.infradead.org/mtd-2.6 2011-05-27 20:06:53 -07:00
mach-h720x ARM: 6962/1: mach-h720x: fix build error 2011-06-17 11:25:03 +01:00
mach-imx ARM: imx: move mx3 support to mach-imx 2011-05-19 13:11:38 +02:00
mach-integrator Merge branches 'consolidate-clksrc', 'consolidate-flash', 'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate 2011-05-23 18:05:10 +01:00
mach-iop13xx Fix common misspellings 2011-03-31 11:26:23 -03:00
mach-iop32x ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-iop33x ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-ixp4xx Merge git://git.infradead.org/mtd-2.6 2011-05-27 20:06:53 -07:00
mach-ixp23xx arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-ixp2000 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-kirkwood ARM: orion: Refactor the MPP code common in the orion platform 2011-05-16 15:25:54 -04:00
mach-ks8695 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-l7200/include/mach
mach-loki ARM: orion: Consolidate ethernet platform data 2011-05-16 15:06:01 -04:00
mach-lpc32xx clocksource: convert ARM 32-bit up counting clocksources 2011-05-23 18:04:51 +01:00
mach-mmp Merge branch 'zImage_fixes' of git://git.linaro.org/people/nico/linux into devel-stable 2011-05-07 08:34:02 +01:00
mach-msm Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-05-23 15:15:27 -07:00
mach-mv78xx0 ARM: orion: Refactor the MPP code common in the orion platform 2011-05-16 15:25:54 -04:00
mach-mx5 ARM: mxc: don't allow to compile together i.MX51 and i.MX53 2011-05-19 13:11:30 +02:00
mach-mxs arm: mxs: include asm/processor.h for cpu_relax() 2011-06-06 09:50:04 +02:00
mach-netx ARM: 6827/1: mach-netx: delete hardcoded periphid 2011-05-26 10:33:34 +01:00
mach-nomadik gpio: move Nomadik GPIO driver to drivers/gpio 2011-05-26 17:30:03 -06:00
mach-nuc93x ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-omap1 arch/arm/mach-omap1/dma.c: Invert calls to platform_device_put and platform_device_del 2011-06-01 02:25:04 -07:00
mach-omap2 ARM: pm: omap3: run the ASM sleep code from DDR 2011-06-29 19:07:47 +01:00
mach-orion5x ARM: orion5x: Refactor mpp code to use common orion platform mpp. 2011-05-16 15:42:59 -04:00
mach-pnx4008 arm: Cleanup the irq namespace 2011-03-29 14:47:57 +02:00
mach-pxa ARM: pm: hide 1st and 2nd arguments to cpu_suspend from platform code 2011-06-24 09:54:39 +01:00
mach-realview Merge branches 'consolidate-clksrc', 'consolidate-flash', 'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate 2011-05-23 18:05:10 +01:00
mach-rpc ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-s3c24a0/include/mach
mach-s3c64xx ARM: pm: samsung: move cpu_suspend into C code 2011-06-24 08:48:44 +01:00
mach-s3c2400
mach-s3c2410 ARM: S3C2410: remove the now empty mach-s3c2410/irq.c 2011-06-03 18:36:53 -07:00
mach-s3c2412 ARM: pm: samsung: no need to call flush_cache_all() 2011-06-24 08:48:45 +01:00
mach-s3c2416 ARM: pm: samsung: no need to call flush_cache_all() 2011-06-24 08:48:45 +01:00
mach-s3c2440 ARM / Samsung: Use struct syscore_ops for "core" power management 2011-04-24 19:16:10 +02:00
mach-s3c2443 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-s5p64x0 ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-s5pc100 gpio: Move the s5pc100 GPIO to drivers/gpio 2011-05-26 17:33:41 -06:00
mach-s5pv210 ARM: pm: samsung: move cpu_suspend into C code 2011-06-24 08:48:44 +01:00
mach-sa1100 ARM: pm: hide 1st and 2nd arguments to cpu_suspend from platform code 2011-06-24 09:54:39 +01:00
mach-shark ARM: use ARM_DMA_ZONE_SIZE to adjust the zone sizes 2011-05-12 08:36:53 +01:00
mach-shmobile ARM: mach-shmobile: mackerel: tidyup usbhs driver settings 2011-06-15 16:03:17 +09:00
mach-spear3xx ARM: 6931/1: SPEAr3xx: Rework KConfig to allow all boards to be compiled in 2011-05-20 22:34:25 +01:00
mach-spear6xx ARM: 6934/1: SPEAr6xx: Rework Kconfig for single image solution 2011-05-20 22:34:25 +01:00
mach-tcc8k clocksource: convert ARM 32-bit up counting clocksources 2011-05-23 18:04:51 +01:00
mach-tegra ARM: Tegra: Harmony: Fix conflicting GPIO numbering 2011-06-04 15:51:52 -07:00
mach-u300 ARM: 6949/2: mach-u300: fix compilaton warning in IO accessors 2011-06-09 10:15:06 +01:00
mach-ux500 gpio/nomadik: fix sleepmode for elder Nomadik 2011-06-09 15:03:38 -06:00
mach-versatile Merge branches 'consolidate-clksrc', 'consolidate-flash', 'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate 2011-05-23 18:05:10 +01:00
mach-vexpress ARM: 6946/1: vexpress: move v2m clock init to init_early 2011-06-06 10:56:09 +01:00
mach-vt8500 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-w90x900 Merge branch 'devel-stable' into for-linus 2011-05-23 19:28:04 +01:00
mm ARM: pm: arrange for cpu_proc_init() to be called on resume 2011-06-24 08:47:12 +01:00
nwfpe
oprofile
plat-iop ARM: 6969/1: plat-iop: fix build error 2011-06-21 11:33:21 +01:00
plat-mxc ARM: mx51/sdma: Check the chip revision in run-time 2011-06-06 09:50:04 +02:00
plat-nomadik gpio/nomadik: fix sleepmode for elder Nomadik 2011-06-09 15:03:38 -06:00
plat-omap ARM: pm: omap3: run the ASM sleep code from DDR 2011-06-29 19:07:47 +01:00
plat-orion Merge branch 'devel-stable' into for-linus 2011-05-23 19:28:04 +01:00
plat-pxa ARM / PXA: Use struct syscore_ops for "core" power management 2011-04-24 19:16:09 +02:00
plat-s3c24xx ARM: pm: samsung: move cpu_suspend into C code 2011-06-24 08:48:44 +01:00
plat-s5p ARM: SAMSUNG: Remove unused onenand plat functions 2011-06-03 16:45:02 -07:00
plat-samsung ARM: pm: hide 1st and 2nd arguments to cpu_suspend from platform code 2011-06-24 09:54:39 +01:00
plat-spear Merge branches 'consolidate', 'ep93xx', 'fixes', 'misc', 'mmci', 'remove' and 'spear' into for-linus 2011-05-23 19:27:40 +01:00
plat-tcc
plat-versatile ARM: consolidate SMP cross call implementation 2011-05-23 16:53:17 +01:00
tools ARM: Update mach-types 2011-05-14 21:36:55 +01:00
vfp ARM: Use struct syscore_ops instead of sysdevs for PM in common code 2011-04-24 19:16:08 +02:00
Kconfig Merge branches 'devel', 'devel-stable' and 'fixes' into for-linus 2011-05-27 22:59:57 +01:00
Kconfig-nommu Fix common misspellings 2011-03-31 11:26:23 -03:00
Kconfig.debug lib: consolidate DEBUG_STACK_USAGE option 2011-05-25 08:39:54 -07:00
Makefile Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable 2011-05-25 21:47:48 +01:00