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ARM: at91: pm: wait for ddr power mode off

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Wait for DDR power mode off before shutting down the core.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20210415105010.569620-16-claudiu.beznea@microchip.com
This commit is contained in:
Claudiu Beznea 2021-04-15 13:50:01 +03:00 committed by Nicolas Ferre
parent 475be50fc1
commit 5b0bef872c
1 changed files with 5 additions and 0 deletions
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5
arch/arm/mach-at91/pm_suspend.S
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@ -980,6 +980,11 @@ ulp_exit:
mov tmp1, #0x1
str tmp1, [r0, #0x10]
/* Wait for it. */
1: ldr tmp1, [r0, #0x10]
tst tmp1, #0x1
beq 1b
/* Shutdown */
ldr r0, .shdwc
mov tmp1, #0xA5000000