diff --git a/arch/arm/mach-s5p64x0/mach-smdk6440.c b/arch/arm/mach-s5p64x0/mach-smdk6440.c
index 366dca4..2d559f1 100644
--- a/arch/arm/mach-s5p64x0/mach-smdk6440.c
+++ b/arch/arm/mach-s5p64x0/mach-smdk6440.c
@@ -45,6 +45,7 @@
 #include <plat/pll.h>
 #include <plat/adc.h>
 #include <plat/ts.h>
+#include <plat/s5p-time.h>
 
 #define SMDK6440_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
 				S3C2410_UCON_RXILEVEL |		\
@@ -179,6 +180,7 @@
 	s5p_init_io(NULL, 0, S5P64X0_SYS_ID);
 	s3c24xx_init_clocks(12000000);
 	s3c24xx_init_uarts(smdk6440_uartcfgs, ARRAY_SIZE(smdk6440_uartcfgs));
+	s5p_set_timer_source(S5P_PWM3, S5P_PWM4);
 }
 
 static void __init smdk6440_machine_init(void)
@@ -202,5 +204,5 @@
 	.init_irq	= s5p6440_init_irq,
 	.map_io		= smdk6440_map_io,
 	.init_machine	= smdk6440_machine_init,
-	.timer		= &s3c24xx_timer,
+	.timer		= &s5p_timer,
 MACHINE_END
diff --git a/arch/arm/mach-s5p64x0/mach-smdk6450.c b/arch/arm/mach-s5p64x0/mach-smdk6450.c
index 1d8f9fd..d19c469 100644
--- a/arch/arm/mach-s5p64x0/mach-smdk6450.c
+++ b/arch/arm/mach-s5p64x0/mach-smdk6450.c
@@ -45,6 +45,7 @@
 #include <plat/pll.h>
 #include <plat/adc.h>
 #include <plat/ts.h>
+#include <plat/s5p-time.h>
 
 #define SMDK6450_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
 				S3C2410_UCON_RXILEVEL |		\
@@ -198,6 +199,7 @@
 	s5p_init_io(NULL, 0, S5P64X0_SYS_ID);
 	s3c24xx_init_clocks(19200000);
 	s3c24xx_init_uarts(smdk6450_uartcfgs, ARRAY_SIZE(smdk6450_uartcfgs));
+	s5p_set_timer_source(S5P_PWM3, S5P_PWM4);
 }
 
 static void __init smdk6450_machine_init(void)
@@ -221,5 +223,5 @@
 	.init_irq	= s5p6450_init_irq,
 	.map_io		= smdk6450_map_io,
 	.init_machine	= smdk6450_machine_init,
-	.timer		= &s3c24xx_timer,
+	.timer		= &s5p_timer,
 MACHINE_END
diff --git a/arch/arm/mach-s5pv210/mach-aquila.c b/arch/arm/mach-s5pv210/mach-aquila.c
index e5acb36..4e1d8ff 100644
--- a/arch/arm/mach-s5pv210/mach-aquila.c
+++ b/arch/arm/mach-s5pv210/mach-aquila.c
@@ -39,6 +39,7 @@
 #include <plat/fb.h>
 #include <plat/fimc-core.h>
 #include <plat/sdhci.h>
+#include <plat/s5p-time.h>
 
 /* Following are default values for UCON, ULCON and UFCON UART registers */
 #define AQUILA_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
@@ -646,6 +647,7 @@
 	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
 	s3c24xx_init_clocks(24000000);
 	s3c24xx_init_uarts(aquila_uartcfgs, ARRAY_SIZE(aquila_uartcfgs));
+	s5p_set_timer_source(S5P_PWM3, S5P_PWM4);
 }
 
 static void __init aquila_machine_init(void)
@@ -680,5 +682,5 @@
 	.init_irq	= s5pv210_init_irq,
 	.map_io		= aquila_map_io,
 	.init_machine	= aquila_machine_init,
-	.timer		= &s3c24xx_timer,
+	.timer		= &s5p_timer,
 MACHINE_END
diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c
index a431742..2432917 100644
--- a/arch/arm/mach-s5pv210/mach-goni.c
+++ b/arch/arm/mach-s5pv210/mach-goni.c
@@ -45,6 +45,7 @@
 #include <plat/keypad.h>
 #include <plat/sdhci.h>
 #include <plat/clock.h>
+#include <plat/s5p-time.h>
 
 /* Following are default values for UCON, ULCON and UFCON UART registers */
 #define GONI_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
@@ -835,6 +836,7 @@
 	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
 	s3c24xx_init_clocks(24000000);
 	s3c24xx_init_uarts(goni_uartcfgs, ARRAY_SIZE(goni_uartcfgs));
+	s5p_set_timer_source(S5P_PWM3, S5P_PWM4);
 }
 
 static void __init goni_machine_init(void)
@@ -888,5 +890,5 @@
 	.init_irq	= s5pv210_init_irq,
 	.map_io		= goni_map_io,
 	.init_machine	= goni_machine_init,
-	.timer		= &s3c24xx_timer,
+	.timer		= &s5p_timer,
 MACHINE_END
diff --git a/arch/arm/mach-s5pv210/mach-smdkc110.c b/arch/arm/mach-s5pv210/mach-smdkc110.c
index ce11a02..6c412c8 100644
--- a/arch/arm/mach-s5pv210/mach-smdkc110.c
+++ b/arch/arm/mach-s5pv210/mach-smdkc110.c
@@ -30,6 +30,7 @@
 #include <plat/ata.h>
 #include <plat/iic.h>
 #include <plat/pm.h>
+#include <plat/s5p-time.h>
 
 /* Following are default values for UCON, ULCON and UFCON UART registers */
 #define SMDKC110_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
@@ -111,6 +112,7 @@
 	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
 	s3c24xx_init_clocks(24000000);
 	s3c24xx_init_uarts(smdkv210_uartcfgs, ARRAY_SIZE(smdkv210_uartcfgs));
+	s5p_set_timer_source(S5P_PWM3, S5P_PWM4);
 }
 
 static void __init smdkc110_machine_init(void)
@@ -138,5 +140,5 @@
 	.init_irq	= s5pv210_init_irq,
 	.map_io		= smdkc110_map_io,
 	.init_machine	= smdkc110_machine_init,
-	.timer		= &s3c24xx_timer,
+	.timer		= &s5p_timer,
 MACHINE_END
diff --git a/arch/arm/mach-s5pv210/mach-smdkv210.c b/arch/arm/mach-s5pv210/mach-smdkv210.c
index 2b5f488..bc08ac4 100644
--- a/arch/arm/mach-s5pv210/mach-smdkv210.c
+++ b/arch/arm/mach-s5pv210/mach-smdkv210.c
@@ -45,6 +45,7 @@
 #include <plat/pm.h>
 #include <plat/fb.h>
 #include <plat/gpio-cfg.h>
+#include <plat/s5p-time.h>
 
 /* Following are default values for UCON, ULCON and UFCON UART registers */
 #define SMDKV210_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
@@ -315,6 +316,7 @@
 	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
 	s3c24xx_init_clocks(24000000);
 	s3c24xx_init_uarts(smdkv210_uartcfgs, ARRAY_SIZE(smdkv210_uartcfgs));
+	s5p_set_timer_source(S5P_PWM2, S5P_PWM4);
 }
 
 static void __init smdkv210_machine_init(void)
@@ -349,5 +351,5 @@
 	.init_irq	= s5pv210_init_irq,
 	.map_io		= smdkv210_map_io,
 	.init_machine	= smdkv210_machine_init,
-	.timer		= &s3c24xx_timer,
+	.timer		= &s5p_timer,
 MACHINE_END
diff --git a/arch/arm/mach-s5pv210/mach-torbreck.c b/arch/arm/mach-s5pv210/mach-torbreck.c
index 043c938..925fc0d 100644
--- a/arch/arm/mach-s5pv210/mach-torbreck.c
+++ b/arch/arm/mach-s5pv210/mach-torbreck.c
@@ -27,6 +27,7 @@
 #include <plat/devs.h>
 #include <plat/cpu.h>
 #include <plat/iic.h>
+#include <plat/s5p-time.h>
 
 /* Following are default values for UCON, ULCON and UFCON UART registers */
 #define TORBRECK_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
@@ -104,6 +105,7 @@
 	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
 	s3c24xx_init_clocks(24000000);
 	s3c24xx_init_uarts(torbreck_uartcfgs, ARRAY_SIZE(torbreck_uartcfgs));
+	s5p_set_timer_source(S5P_PWM3, S5P_PWM4);
 }
 
 static void __init torbreck_machine_init(void)
@@ -127,5 +129,5 @@
 	.init_irq	= s5pv210_init_irq,
 	.map_io		= torbreck_map_io,
 	.init_machine	= torbreck_machine_init,
-	.timer		= &s3c24xx_timer,
+	.timer		= &s5p_timer,
 MACHINE_END