[PATCH 15/24] ARM: at91: pm: wait for ddr power mode off
From: Claudiu Beznea <hidden>
Date: 2021-03-31 11:01:14
Also in:
linux-devicetree, lkml
Subsystem:
arm port, arm/microchip (at91) soc support, the rest · Maintainers:
Russell King, Nicolas Ferre, Alexandre Belloni, Claudiu Beznea, Linus Torvalds
Wait for DDR power mode off before shutting down the core. Signed-off-by: Claudiu Beznea <redacted> --- arch/arm/mach-at91/pm_suspend.S | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/arch/arm/mach-at91/pm_suspend.S b/arch/arm/mach-at91/pm_suspend.S
index 9c9e08fd8300..7396e18dd7e5 100644
--- a/arch/arm/mach-at91/pm_suspend.S
+++ b/arch/arm/mach-at91/pm_suspend.S@@ -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
--
2.25.1
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