This patch looks like it should be in the 3.9-stable tree, should we apply
it?
------------------
From: "Jungseok Lee <jays.lee@xxxxxxxxxxx>"
commit 1ba830c9997214a7fbe4d91cf238793764620e3b upstream
This patch fixes software reset logic. Software reset applies only to
powered-on domains in SOC because software reset to all domains causes
reboot failure.
Signed-off-by: Jungseok Lee <jays.lee@xxxxxxxxxxx>
Signed-off-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
Signed-off-by: Jonghwan Choi <jhbird.choi@xxxxxxxxxxx>
---
arch/arm/mach-exynos/common.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index d63d399..4d962ec 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -308,9 +308,16 @@ void exynos5_restart(char mode, const char *cmd)
val = 0x1;
addr = EXYNOS_SWRESET;
} else if (of_machine_is_compatible("samsung,exynos5440")) {
+ u32 status;
np = of_find_compatible_node(NULL, NULL,
"samsung,exynos5440-clock");
+
+ addr = of_iomap(np, 0) + 0xbc;
+ status = __raw_readl(addr);
+
addr = of_iomap(np, 0) + 0xcc;
- val = (0xfff << 20) | (0x1 << 16);
+ val = __raw_readl(addr);
+
+ val = (val & 0xffff0000) | (status & 0xffff);
} else {
pr_err("%s: cannot support non-DT\n", __func__);
return;
--
1.7.9.5
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