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authorJongpill Lee2010-06-23 14:31:21 +0200
committerKukjin Kim2010-08-05 11:30:22 +0200
commitd7f1e82ac982dead64d2b3825b7d33db3023a514 (patch)
tree3db1a5fb58fd4611216b767d2258834b0ed80da4 /arch/arm
parentARM: S5P: Changes the definition name of default UART registers (diff)
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ARM: S5P: Add System define for arch_reset()
This patch adds system define for arch_reset() using Watchdog reset. And adds IO mapping for using WDT. Signed-off-by: Jongpill Lee <boyko.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/plat-s5p/cpu.c5
-rw-r--r--arch/arm/plat-s5p/include/plat/system-reset.h24
2 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/plat-s5p/cpu.c b/arch/arm/plat-s5p/cpu.c
index 75cb8c37ca2c..1ab55e82587b 100644
--- a/arch/arm/plat-s5p/cpu.c
+++ b/arch/arm/plat-s5p/cpu.c
@@ -103,6 +103,11 @@ static struct map_desc s5p_iodesc[] __initdata = {
.pfn = __phys_to_pfn(S5P_PA_GPIO),
.length = SZ_4K,
.type = MT_DEVICE,
+ }, {
+ .virtual = (unsigned long)S3C_VA_WATCHDOG,
+ .pfn = __phys_to_pfn(S3C_PA_WDT),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
},
};
diff --git a/arch/arm/plat-s5p/include/plat/system-reset.h b/arch/arm/plat-s5p/include/plat/system-reset.h
new file mode 100644
index 000000000000..7f76a164c20c
--- /dev/null
+++ b/arch/arm/plat-s5p/include/plat/system-reset.h
@@ -0,0 +1,24 @@
+/* linux/arch/arm/plat-s5p/include/plat/system-reset.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Based on arch/arm/mach-s3c2410/include/mach/system-reset.h
+ *
+ * S5P - System define for arch_reset()
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <plat/watchdog-reset.h>
+
+static void arch_reset(char mode, const char *cmd)
+{
+ /* Perform reset using Watchdog reset.
+ * SWRESET support will be added later.
+ */
+
+ arch_wdt_reset();
+}