For both patches, on the Odroid U2: Tested-by: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx> Thanks, Tomeu On 17 July 2014 17:56, Tomasz Figa <t.figa@xxxxxxxxxxx> wrote: > On Exynos-based boards running secure firmware the sequence of low level > operations to enter and leave system-wide sleep mode is different than > on those without the firmware. Namely: > - CP15 power control and diagnostic registers cannot be written directly, > - the way of setting boot address and boot flag is different, > - different resume handler needs to be used, > - dedicated SMC call needs to be performed instead of letting the CPU enter > WFI. > > This series introduces .suspend() and .resume() firmware operations to > perform low level firmware-specific suspend and resume and then leverages > them to provide suspend-resume path meeting the above requirements. > > The series is based on Kgene's for-next branch and tested on: > - Exynos4412-based Trats2 board running in non-secure mode (under secure > firmware) with few board-specific fixes that will be sent separately soon, > - Exynos4210-based Trats board running in secure mode, > - Exynos4412-based ODROID-U3 board running in non-secure mode with one minor > board-specific fix which will be send shortly. > > Depends on: > - [PATCH v3] ARM: save/restore Cortex-A9 CP15 registers on suspend/resume > (http://www.spinics.net/lists/arm-kernel/msg346212.html) > - [PATCH v3] ARM: EXYNOS: Fix suspend/resume sequences > (https://lkml.org/lkml/2014/7/15/319) > - [PATCH] ARM: make it easier to check the CPU part number correctly > (http://thread.gmane.org/gmane.linux.ports.arm.kernel/335126 > already in linux-next) > > Changes since v1: > - dropped outer_resume() - will be handled in assembly in further patches, > as support for L2C in non-secure mode gets added, > - moved CP15 resume to assembly as it needs to be done before MMU is enabled, > - surrounded CP15 save with a check for cpuid part, because it is valid only > on Cortex A9, > - rebased on next-20140717 tag of linux-next tree. > > Tomasz Figa (2): > ARM: firmware: Introduce suspend and resume operations > ARM: EXYNOS: Add support for firmware-assisted suspend/resume > > Documentation/arm/firmware.txt | 28 +++++-------------------- > arch/arm/include/asm/firmware.h | 8 ++++++++ > arch/arm/mach-exynos/Makefile | 1 + > arch/arm/mach-exynos/common.h | 4 ++++ > arch/arm/mach-exynos/firmware.c | 45 +++++++++++++++++++++++++++++++++++++++++ > arch/arm/mach-exynos/pm.c | 16 ++++++++++----- > arch/arm/mach-exynos/sleep.S | 28 +++++++++++++++++++++++++ > arch/arm/mach-exynos/smc.h | 4 ++++ > 8 files changed, 106 insertions(+), 28 deletions(-) > > -- > 1.9.3 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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