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Commit 60db7e5f authored by Thomas Abraham's avatar Thomas Abraham Committed by Kukjin Kim
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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: default avatarThomas Abraham <thomas.ab@samsung.com>
Signed-off-by: default avatarGirish K S <ks.giri@samsung.com>
Signed-off-by: default avatarKukjin <kgene.kim@samsung.com>
parent e877a5aa

arch/arm/mach-exynos/common.c

+4 −2
Original line number Diff line number Diff line
@@ -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;