Use pwm functions for timer that is PWM timer 4.
Signed-off-by: Minkyu Kang mk7.kang@samsung.com Signed-off-by: Kyungmin Park kyungmin.park@samsung.com --- arch/arm/cpu/armv7/s5p-common/timer.c | 49 +++--------------------------- arch/arm/include/asm/arch-s5pc1xx/pwm.h | 8 +---- arch/arm/include/asm/arch-s5pc2xx/pwm.h | 8 +---- 3 files changed, 7 insertions(+), 58 deletions(-)
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 @@ static inline struct s5p_timer *s5p_get_base_timer(void)
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 {