From: Jongpill Lee <boyko.lee@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Signed-off-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
---
arch/arm/plat-s5p/cpu.c | 5 +++++
arch/arm/plat-s5p/include/plat/system-reset.h | 24 ++++++++++++++++++++++++
2 files changed, 29 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/plat-s5p/include/plat/system-reset.h
diff --git a/arch/arm/plat-s5p/cpu.c b/arch/arm/plat-s5p/cpu.c
index 75cb8c3..1ab55e8 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 0000000..7f76a16
--- /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();
+}
--
1.6.2.5
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