diff --git a/arch/arm/mach-s5p6442/Kconfig b/arch/arm/mach-s5p6442/Kconfig
index 0fd41b447915312ee02dc2365dfbdc1ac6720dd4..7cd28435b50b38d4c8d54fe2233c247888db4345 100644
--- a/arch/arm/mach-s5p6442/Kconfig
+++ b/arch/arm/mach-s5p6442/Kconfig
@@ -19,6 +19,8 @@ config CPU_S5P6442
 config MACH_SMDK6442
 	bool "SMDK6442"
 	select CPU_S5P6442
+	select S3C_DEV_WDT
+	select HAVE_S3C2410_WATCHDOG
 	help
 	  Machine support for Samsung SMDK6442
 
diff --git a/arch/arm/mach-s5p6442/clock.c b/arch/arm/mach-s5p6442/clock.c
index 087e57f20ad58c0713452c5ce15d6a46f0d7f165..dcd20f17212a551c52abb165f95b3cb92722493a 100644
--- a/arch/arm/mach-s5p6442/clock.c
+++ b/arch/arm/mach-s5p6442/clock.c
@@ -360,6 +360,12 @@ static struct clk init_clocks[] = {
 		.parent		= &clk_pclkd1,
 		.enable		= s5p6442_clk_ip3_ctrl,
 		.ctrlbit	= (1<<19),
+	}, {
+		.name		= "watchdog",
+		.id		= -1,
+		.parent		= &clk_pclkd1,
+		.enable		= s5p6442_clk_ip3_ctrl,
+		.ctrlbit	= (1 << 22),
 	}, {
 		.name		= "timers",
 		.id		= -1,
diff --git a/arch/arm/mach-s5p6442/include/mach/map.h b/arch/arm/mach-s5p6442/include/mach/map.h
index 32ca424ef7f9db57bb42005b5a4de26a781fcd59..281d256faafb0d6e4e817261ac78e5b091a4078d 100644
--- a/arch/arm/mach-s5p6442/include/mach/map.h
+++ b/arch/arm/mach-s5p6442/include/mach/map.h
@@ -42,6 +42,8 @@
 
 #define S5P6442_PA_SYSTIMER   	(0xEA100000)
 
+#define S5P6442_PA_WATCHDOG	(0xEA200000)
+
 #define S5P6442_PA_UART		(0xEC000000)
 
 #define S5P_PA_UART0		(S5P6442_PA_UART + 0x0)
@@ -65,6 +67,7 @@
 #define S5P6442_PA_PCM1		0xF2500000
 
 /* compatibiltiy defines. */
+#define S3C_PA_WDT		S5P6442_PA_WATCHDOG
 #define S3C_PA_UART		S5P6442_PA_UART
 #define S3C_PA_IIC		S5P6442_PA_IIC0
 
diff --git a/arch/arm/mach-s5p6442/mach-smdk6442.c b/arch/arm/mach-s5p6442/mach-smdk6442.c
index ebcf997772593c9403912f8880021c5639cf6fa1..6e061bec6b74741e03564e9822c16025d1ede436 100644
--- a/arch/arm/mach-s5p6442/mach-smdk6442.c
+++ b/arch/arm/mach-s5p6442/mach-smdk6442.c
@@ -66,6 +66,7 @@ static struct s3c2410_uartcfg smdk6442_uartcfgs[] __initdata = {
 
 static struct platform_device *smdk6442_devices[] __initdata = {
 	&s5p6442_device_iis0,
+	&s3c_device_wdt,
 };
 
 static void __init smdk6442_map_io(void)