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-rw-r--r--arch/arm/cpu/armv7/s5p-common/timer.c4
-rw-r--r--arch/arm/cpu/armv7/s5pc1xx/clock.c25
-rw-r--r--arch/arm/include/asm/arch-s5pc1xx/clk.h3
-rw-r--r--drivers/serial/serial_s5p.c4
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 1f1c7ff340..04906503e6 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 c9b54856e3..98a27e551d 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 c25e17abd7..3488eb7c15 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 6a61b4fa5d..77096643f1 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);