diff options
| -rw-r--r-- | arch/arm/cpu/armv7/s5p-common/timer.c | 4 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/s5pc1xx/clock.c | 25 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-s5pc1xx/clk.h | 3 | ||||
| -rw-r--r-- | drivers/serial/serial_s5p.c | 4 |
4 files changed, 28 insertions, 8 deletions
diff --git a/arch/arm/cpu/armv7/s5p-common/timer.c b/arch/arm/cpu/armv7/s5p-common/timer.c index 1f1c7ff34..04906503e 100644 --- a/arch/arm/cpu/armv7/s5p-common/timer.c +++ b/arch/arm/cpu/armv7/s5p-common/timer.c @@ -57,7 +57,7 @@ int timer_init(void) /* * @ PWM Timer 4 * Timer Freq(HZ) = - * PCLK / { (prescaler_value + 1) * (divider_value) } + * PWM_CLK / { (prescaler_value + 1) * (divider_value) } */ /* set prescaler : 16 */ @@ -68,7 +68,7 @@ int timer_init(void) if (count_value == 0) { /* reset initial value */ /* count_value = 2085937.5(HZ) (per 1 sec)*/ - count_value = get_pclk() / ((PRESCALER_1 + 1) * + count_value = get_pwm_clk() / ((PRESCALER_1 + 1) * (MUX_DIV_2 + 1)); /* count_value / 100 = 20859.375(HZ) (per 10 msec) */ diff --git a/arch/arm/cpu/armv7/s5pc1xx/clock.c b/arch/arm/cpu/armv7/s5pc1xx/clock.c index c9b54856e..98a27e551 100644 --- a/arch/arm/cpu/armv7/s5pc1xx/clock.c +++ b/arch/arm/cpu/armv7/s5pc1xx/clock.c @@ -38,7 +38,8 @@ #define CONFIG_SYS_CLK_FREQ_C110 24000000 #endif -unsigned long (*get_pclk)(void); +unsigned long (*get_uart_clk)(int dev_index); +unsigned long (*get_pwm_clk)(void); unsigned long (*get_arm_clk)(void); unsigned long (*get_pll_clk)(int); @@ -297,15 +298,33 @@ static unsigned long s5pc100_get_pclk(void) return get_pclkd1(); } +/* s5pc1xx: return uart clock frequency */ +static unsigned long s5pc1xx_get_uart_clk(int dev_index) +{ + if (cpu_is_s5pc110()) + return s5pc110_get_pclk(); + else + return s5pc100_get_pclk(); +} + +/* s5pc1xx: return pwm clock frequency */ +static unsigned long s5pc1xx_get_pwm_clk(void) +{ + if (cpu_is_s5pc110()) + return s5pc110_get_pclk(); + else + return s5pc100_get_pclk(); +} + void s5p_clock_init(void) { if (cpu_is_s5pc110()) { get_pll_clk = s5pc110_get_pll_clk; get_arm_clk = s5pc110_get_arm_clk; - get_pclk = s5pc110_get_pclk; } else { get_pll_clk = s5pc100_get_pll_clk; get_arm_clk = s5pc100_get_arm_clk; - get_pclk = s5pc100_get_pclk; } + get_uart_clk = s5pc1xx_get_uart_clk; + get_pwm_clk = s5pc1xx_get_pwm_clk; } diff --git a/arch/arm/include/asm/arch-s5pc1xx/clk.h b/arch/arm/include/asm/arch-s5pc1xx/clk.h index c25e17abd..3488eb7c1 100644 --- a/arch/arm/include/asm/arch-s5pc1xx/clk.h +++ b/arch/arm/include/asm/arch-s5pc1xx/clk.h @@ -33,6 +33,7 @@ void s5p_clock_init(void); extern unsigned long (*get_pll_clk)(int pllreg); extern unsigned long (*get_arm_clk)(void); -extern unsigned long (*get_pclk)(void); +extern unsigned long (*get_pwm_clk)(void); +extern unsigned long (*get_uart_clk)(int dev_index); #endif diff --git a/drivers/serial/serial_s5p.c b/drivers/serial/serial_s5p.c index 6a61b4fa5..77096643f 100644 --- a/drivers/serial/serial_s5p.c +++ b/drivers/serial/serial_s5p.c @@ -63,11 +63,11 @@ void serial_setbrg_dev(const int dev_index) { DECLARE_GLOBAL_DATA_PTR; struct s5p_uart *const uart = s5p_get_base_uart(dev_index); - u32 pclk = get_pclk(); + u32 uclk = get_uart_clk(dev_index); u32 baudrate = gd->baudrate; u32 val; - val = pclk / baudrate; + val = uclk / baudrate; writel(val / 16 - 1, &uart->ubrdiv); writew(udivslot[val % 16], &uart->udivslot); |