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ARM: EXYNOS: Fix crash on soft reset on EXYNOS5440 

The soft-reset control register is located in the XMU controller space.
Map this controller space before writing to the soft-reset controller
register.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Girish K S <ks.giri@samsung.com>
Signed-off-by: Kukjin <kgene.kim@samsung.com>
This commit is contained in:
Thomas Abraham 2013-01-24 10:09:13 -08:00 committed by Kukjin Kim
parent e877a5aa17
commit 60db7e5f9c
1 changed files with 4 additions and 2 deletions
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6
arch/arm/mach-exynos/common.c
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@ -299,6 +299,7 @@ void exynos4_restart(char mode, const char *cmd)
void exynos5_restart(char mode, const char *cmd)
{
struct device_node *np;
u32 val;
void __iomem *addr;
@ -306,8 +307,9 @@ void exynos5_restart(char mode, const char *cmd)
val = 0x1;
addr = EXYNOS_SWRESET;
} else if (of_machine_is_compatible("samsung,exynos5440")) {
val = (0x10 << 20) | (0x1 << 16);
addr = EXYNOS5440_SWRESET;
np = of_find_compatible_node(NULL, NULL, "samsung,exynos5440-clock");
addr = of_iomap(np, 0) + 0xcc;
val = (0xfff << 20) | (0x1 << 16);
} else {
pr_err("%s: cannot support non-DT\n", __func__);
return;