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authorInderpal Singh <inderpal.singh@linaro.org>2011-11-22 15:19:15 +0530
committerTushar Behera <tushar.behera@linaro.org>2012-07-20 14:29:40 +0530
commite5d3455005d7219c0e4b52057bc74992e300f0ac (patch)
tree8de9cb8f3f50aeff613b3de25ad9db72a327de43
parent22d53cfb090f67de4d6da4570396105c6d41a682 (diff)
ARM: EXYNOS: Fix reboot hang after suspend/resumetracking-samslt-s2ram-ll-20120727.0tracking-samslt-s2ram-ll-20120723.0
Clear INFORM1 register used by u-boot to check the reset reason. If not cleared, u-boot will detect reboot as wake from sleep and jumps to an invalid address and hangs. Signed-off-by: Inderpal SIngh <inderpal.singh@linaro.org>
-rw-r--r--arch/arm/mach-exynos/pm.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index c06c992943a1..239045f198e5 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -312,6 +312,9 @@ static void exynos_pm_resume(void)
}
early_wakeup:
+ /* Clear INFORM Register */
+ __raw_writel(0, S5P_INFORM1);
+
return;
}