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ARM: EXYNOS: fix software reset logic for EXYNOS5440 SOC 

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@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Jungseok Lee 2013-05-25 06:33:03 +09:00 committed by Kukjin Kim
parent 68a433f18c
commit 1ba830c999
1 changed files with 8 additions and 1 deletions
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9
arch/arm/mach-exynos/common.c
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@ -326,9 +326,16 @@ 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;