S5P: timer: Use pwm functions
Use pwm functions for timer that is PWM timer 4.
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/arch/arm/cpu/armv7/s5p-common/timer.c b/arch/arm/cpu/armv7/s5p-common/timer.c
index 651fd5d..cf61ee0 100644
--- a/arch/arm/cpu/armv7/s5p-common/timer.c
+++ b/arch/arm/cpu/armv7/s5p-common/timer.c
@@ -27,15 +27,7 @@
#include <asm/io.h>
#include <asm/arch/pwm.h>
#include <asm/arch/clk.h>
-
-#define PRESCALER_1 (16 - 1) /* prescaler of timer 2, 3, 4 */
-#define MUX_DIV_2 1 /* 1/2 period */
-#define MUX_DIV_4 2 /* 1/4 period */
-#define MUX_DIV_8 3 /* 1/8 period */
-#define MUX_DIV_16 4 /* 1/16 period */
-#define MUX4_DIV_SHIFT 16
-
-#define TCON_TIMER4_SHIFT 20
+#include <pwm.h>
static unsigned long count_value;
@@ -51,41 +43,10 @@
int timer_init(void)
{
- struct s5p_timer *const timer = s5p_get_base_timer();
- u32 val;
-
- /*
- * @ PWM Timer 4
- * Timer Freq(HZ) =
- * PWM_CLK / { (prescaler_value + 1) * (divider_value) }
- */
-
- /* set prescaler : 16 */
- /* set divider : 2 */
- writel((PRESCALER_1 & 0xff) << 8, &timer->tcfg0);
- writel((MUX_DIV_2 & 0xf) << MUX4_DIV_SHIFT, &timer->tcfg1);
-
- /* count_value = 2085937.5(HZ) (per 1 sec)*/
- count_value = get_pwm_clk() / ((PRESCALER_1 + 1) *
- (MUX_DIV_2 + 1));
-
- /* count_value / 100 = 20859.375(HZ) (per 10 msec) */
- count_value = count_value / 100;
-
- /* set count value */
- writel(count_value, &timer->tcntb4);
- lastdec = count_value;
-
- val = (readl(&timer->tcon) & ~(0x07 << TCON_TIMER4_SHIFT)) |
- TCON4_AUTO_RELOAD;
-
- /* auto reload & manual update */
- writel(val | TCON4_UPDATE, &timer->tcon);
-
- /* start PWM timer 4 */
- writel(val | TCON4_START, &timer->tcon);
-
- timestamp = 0;
+ /* PWM Timer 4 */
+ pwm_init(4, MUX_DIV_2, 0);
+ pwm_config(4, 0, 0);
+ pwm_enable(4);
return 0;
}
diff --git a/arch/arm/include/asm/arch-s5pc1xx/pwm.h b/arch/arm/include/asm/arch-s5pc1xx/pwm.h
index de4dbce..d0cf3cb 100644
--- a/arch/arm/include/asm/arch-s5pc1xx/pwm.h
+++ b/arch/arm/include/asm/arch-s5pc1xx/pwm.h
@@ -34,19 +34,13 @@
#define MUX_DIV_SHIFT(x) (x * 4)
-/* Interval mode(Auto Reload) of PWM Timer 4 */
-#define TCON4_AUTO_RELOAD (1 << 22)
-/* Update TCNTB4 */
-#define TCON4_UPDATE (1 << 21)
-/* start bit of PWM Timer 4 */
-#define TCON4_START (1 << 20)
-
#define TCON_OFFSET(x) ((x + 1) * (!!x) << 2)
#define TCON_START(x) (1 << TCON_OFFSET(x))
#define TCON_UPDATE(x) (1 << (TCON_OFFSET(x) + 1))
#define TCON_INVERTER(x) (1 << (TCON_OFFSET(x) + 2))
#define TCON_AUTO_RELOAD(x) (1 << (TCON_OFFSET(x) + 3))
+#define TCON4_AUTO_RELOAD (1 << 22)
#ifndef __ASSEMBLY__
struct s5p_timer {
diff --git a/arch/arm/include/asm/arch-s5pc2xx/pwm.h b/arch/arm/include/asm/arch-s5pc2xx/pwm.h
index de4dbce..d0cf3cb 100644
--- a/arch/arm/include/asm/arch-s5pc2xx/pwm.h
+++ b/arch/arm/include/asm/arch-s5pc2xx/pwm.h
@@ -34,19 +34,13 @@
#define MUX_DIV_SHIFT(x) (x * 4)
-/* Interval mode(Auto Reload) of PWM Timer 4 */
-#define TCON4_AUTO_RELOAD (1 << 22)
-/* Update TCNTB4 */
-#define TCON4_UPDATE (1 << 21)
-/* start bit of PWM Timer 4 */
-#define TCON4_START (1 << 20)
-
#define TCON_OFFSET(x) ((x + 1) * (!!x) << 2)
#define TCON_START(x) (1 << TCON_OFFSET(x))
#define TCON_UPDATE(x) (1 << (TCON_OFFSET(x) + 1))
#define TCON_INVERTER(x) (1 << (TCON_OFFSET(x) + 2))
#define TCON_AUTO_RELOAD(x) (1 << (TCON_OFFSET(x) + 3))
+#define TCON4_AUTO_RELOAD (1 << 22)
#ifndef __ASSEMBLY__
struct s5p_timer {