aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-at91/pm_suspend.S
AgeCommit message (Collapse)Author
2020-07-22ARM: at91: pm: add quirk for sam9x60's ulp1Claudiu Beznea
[ Upstream commit bb1a0e87e1c54cd884e9b92b1cec06b186edc7a0 ] On SAM9X60 2 nop operations has to be introduced after setting WAITMODE bit in CKGR_MOR. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/1579522208-19523-9-git-send-email-claudiu.beznea@microchip.com Signed-off-by: Sasha Levin <sashal@kernel.org>
2018-07-17ARM: at91: pm: Add ULP1 mode supportWenyou Yang
In the ULP1 mode, in order to achieve the lowest power consumption with the system in retention mode and be able to resume on the wake up events, all the clocks are shut off, inclusive the embedded 12MHz RC oscillator, and the number of wake up sources is limited as well. When the wake up event is asserted, the embedded 12MHz RC oscillator restarts automatically. The ULP1 (Ultra Low-power mode 1) is introduced by SAMA5D2. The previous size of pm_suspend.o was 2148 bytes. With the addition of ULP1 mode the new size of pm_suspend.o raised at 2456 bytes. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com> [claudiu.beznea@microchip.com: aligned with 4.18-rc1] Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-07-17ARM: at91: pm: Use ULP0 naming instead of slow clockClaudiu Beznea
Switch to use ULP0 naming instead of slow clock naming for power modes, to be as closed as possible to datasheet. This commit does the necessary renaming and macro addition to be as close as possible to the namings from [1]. [1] https://lore.kernel.org/lkml/1470650705-31418-3-git-send-email-wenyou.yang@atmel.com Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2017-05-15ARM: at91: pm: Add sama5d2 backup modeAlexandre Belloni
The sama5d2 has a mode were it is possible to cut power to the SoC while keeping the RAM in self refresh. Resuming from that mode needs support in the firmware/bootloader. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
2017-03-31ARM: at91: pm: correct typoAlexandre Belloni
Add a missing bracket at the end of Anti's email Acked-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-03-31ARM: at91: pm: Use struct at91_pm_data in pm_suspend.SAlexandre Belloni
The number of register we can safely pass to at91_pm_suspend_in_sram is limited. Instead, pass the address to the at91_pm_data structure. The offsets are automatically generated to avoid hardcoding them. Acked-by: Wenyou Yang <wenyou.yang@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-10-19ARM: at91: pm: at91_pm_suspend_in_sram() must be 8-byte alignedPatrick Doyle
fncpy() requires that the source and the destination are both 8-byte aligned. Signed-off-by: Patrick Doyle <pdoyle@irobot.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Fixes: d94e688cae56 ("ARM: at91/pm: move the copying the sram function to the sram initialization phase") Cc: <stable@vger.kernel.org> # 4.1+
2015-05-20ARM: at91: remove mach/at91_ramc.h and mach/at91rm9200_mc.hAlexandre Belloni
mach/at91_ramc.h and mach/at91rm9200_mc.h aren't necessary anymore, remove them. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-20ARM: at91/pm: use the atmel-mc syscon definesAlexandre Belloni
Use the defines from atmel-mc.h instead of at91rm9200_sdramc.h Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-19ARM: at91: remove hardware.hAlexandre Belloni
hardware.h is now mostyl unused, move the remaining declarations to pm.c and remove it. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13ARM: at91/pm_suspend: add the WFI instruction support for ARMv7Wenyou Yang
Add the WFI instruction to make the cpu to the idle state. In the meanwhile, disable the processor's clock. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13ARM: at91/pm: rename function name: at91_slow_clock() --> ↵Wenyou Yang
at91_pm_suspend_sram_fn() As the file name is renamed, rename the function name at91_slow_clock() --> at91_pm_suspend_sram_fn(), rename the function handler's name at the same time. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com> [nicolas.ferre@atmel.com: little update of the commit message] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13ARM: at91/pm: rename file name: pm_slowclock.S --> pm_suspend.SWenyou Yang
Because the sram function is used for both suspend to memory and the suspend to standby mode, renaming is more elegant. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-06-10 15:17:52 +0000