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ARM: at91: pm: add ULP1 support for SAM9X60

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Add ULP1 support for SAM9X60. In pm_suspend.S enable RC oscillator in
PMC if it is not enabled. At resume the state before suspend is
restored.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
This commit is contained in:
Claudiu Beznea
2019-02-14 15:54:57 +00:00
committed by Ludovic Desroches
parent a958156dac
commit eaedc0d379
3 changed files with 65 additions and 1 deletions
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include/linux/clk/at91_pmc.h
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@@ -159,6 +159,7 @@
#define AT91_PMC_FSMR 0x70 /* Fast Startup Mode Register */
#define AT91_PMC_FSTT(n) BIT(n)
#define AT91_PMC_RTTAL BIT(16)
#define AT91_PMC_RTCAL BIT(17) /* RTC Alarm Enable */
#define AT91_PMC_USBAL BIT(18) /* USB Resume Enable */
#define AT91_PMC_SDMMC_CD BIT(19) /* SDMMC Card Detect Enable */