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93cac2ad0f
linux_dsm_epyc7002/arch/arm
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Santosh Shilimkar 93cac2ad0f OMAP4: clock data: Keep GPMC clocks always enabled and hardware managed 
On OMAP4, CPU accesses on unmapped addresses are redirected to GPMC by
L3 interconnect. Because of CPU speculative nature, such accesses are
possible which can lead to indirect access to GPMC and if it's clock is
not running, it can result in hang/abort on the platform.

Above makes access to GPMC unpredictable during the execution, so it's
module mode needs to be kept under hardware control instead of software
control.
Since the auto gating is supported for GPMC, there isn't any power impact
because of this change.

The issue was un-covered with security middleware running along with HLOS.
In this case GPMC had a valid MMU descriptor on secure side where as HLOS
didn't map the GMPC because it isn't being used.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[b-cousson@ti.com: Update subject and fix typos in the changelog]
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-07-09 20:42:59 -06:00
..
boot Merge branch 'devel-stable' into for-linus 2011-05-23 19:28:04 +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 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-05-27 19:51:32 -07:00
include/asm Merge branch 'setns' 2011-05-28 10:51:01 -07:00
kernel Merge branch 'setns' 2011-05-28 10:51:01 -07:00
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 ARM: P2V: separate PHYS_OFFSET from platform definitions 2011-02-17 23:26:55 +00:00
mach-davinci Merge branch 'davinci-next' of git://gitorious.org/linux-davinci/linux-davinci into devel-stable 2011-05-25 00:11:25 +01:00
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: EXYNOS4: Remove compiler warning on exynos4_pwm4_resume 2011-06-03 16:22:01 -07:00
mach-footbridge clocksource: convert footbridge to generic i8253 clocksource 2011-05-14 10:29:48 +01:00
mach-gemini Merge git://git.infradead.org/mtd-2.6 2011-05-27 20:06:53 -07:00
mach-h720x ARM: Replace platform definition of ISA_DMA_THRESHOLD/MAX_DMA_ADDRESS 2011-05-12 08:36:49 +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 Merge branch 'devel-stable' into for-linus 2011-05-23 19:28:04 +01:00
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 OMAP4: clock data: Keep GPMC clocks always enabled and hardware managed 2011-07-09 20:42:59 -06:00
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 Merge git://git.infradead.org/mtd-2.6 2011-05-27 20:06:53 -07:00
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 ARM: P2V: separate PHYS_OFFSET from platform definitions 2011-02-17 23:26:55 +00:00
mach-s3c64xx 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
mach-s3c2400 ARM: P2V: separate PHYS_OFFSET from platform definitions 2011-02-17 23:26:55 +00:00
mach-s3c2410 ARM: S3C2410: remove the now empty mach-s3c2410/irq.c 2011-06-03 18:36:53 -07:00
mach-s3c2412 ARM / Samsung: Use struct syscore_ops for "core" power management 2011-04-24 19:16:10 +02:00
mach-s3c2416 Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2011-05-23 12:33:02 -07:00
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: S5PV210: Fix possible null pointer dereference 2011-06-01 15:06:35 -07:00
mach-sa1100 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-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: add DMAC clock definitions on SH7372 2011-06-02 14:45:33 +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 gpio: move U300 GPIO driver to drivers/gpio 2011-05-26 17:29:33 -06:00
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 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-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 Merge branches 'devel', 'devel-stable' and 'fixes' into for-linus 2011-05-27 22:59:57 +01:00
nwfpe
oprofile Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-02-15 10:18:48 -08:00
plat-iop ARM: Remove duplicate linux/sched.h include from arch/arm/plat-iop/time.c 2011-04-10 17:01:02 +02:00
plat-mxc Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-05-23 15:15:27 -07:00
plat-nomadik gpio/nomadik: fix sleepmode for elder Nomadik 2011-06-09 15:03:38 -06:00
plat-omap ARM: OMAP4: MMC: no regulator off during probe for eMMC 2011-06-01 02:25:04 -07:00
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: S3C24XX: Move s3c24xx_irq_syscore_ops to plat-s3c24xx/irq.c 2011-06-03 18:36:52 -07:00
plat-s5p ARM: SAMSUNG: Remove unused onenand plat functions 2011-06-03 16:45:02 -07:00
plat-samsung ARM: SAMSUNG: Remove unused onenand plat functions 2011-06-03 16:45:02 -07:00
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 ARM: P2V: separate PHYS_OFFSET from platform definitions 2011-02-17 23:26:55 +00:00
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