Replacing SoC and peripheral specific function calls with generic
clock_get_periph_rate calls to get the peripheral clocks.
Signed-off-by: Akshay Saraswat <aksha...@samsung.com>
---
arch/arm/cpu/armv7/exynos/clock.c | 60 +++++++++++++++++++++++++++++++--------
1 file changed, 48 insertions(+), 12 deletions(-)
diff --git a/arch/arm/cpu/armv7/exynos/clock.c
b/arch/arm/cpu/armv7/exynos/clock.c
index 9ac4579..9c719aa 100644
--- a/arch/arm/cpu/armv7/exynos/clock.c
+++ b/arch/arm/cpu/armv7/exynos/clock.c
@@ -406,10 +406,13 @@ static unsigned long exynos5_get_periph_rate(int
peripheral)
break;
case PERIPH_ID_SDMMC0:
case PERIPH_ID_SDMMC1:
+ src = readl(&clk->src_fsys);
+ div = readl(&clk->div_fsys1);
+ break;
case PERIPH_ID_SDMMC2:
case PERIPH_ID_SDMMC3:
src = readl(&clk->src_fsys);
- div = readl(&clk->div_fsys1);
+ div = readl(&clk->div_fsys2);
break;
case PERIPH_ID_I2C0:
case PERIPH_ID_I2C1:
@@ -450,8 +453,7 @@ static unsigned long exynos5_get_periph_rate(int peripheral)
sub_div = (div >> bit_info->div_bit) & 0xf;
sub_clk = sclk / (sub_div + 1);
- /* Pre-ratio clock division for SDMMC0 and 2 */
- if (peripheral == PERIPH_ID_SDMMC0 || peripheral == PERIPH_ID_SDMMC2) {
+ if (bit_info->prediv_bit >= 0) {
div = (div >> bit_info->prediv_bit) & 0xff;
return sub_clk / (div + 1);
}
@@ -1766,7 +1768,7 @@ unsigned long get_arm_clk(void)
unsigned long get_i2c_clk(void)
{
if (cpu_is_exynos5()) {
- return exynos5_get_i2c_clk();
+ return clock_get_periph_rate(PERIPH_ID_I2C0);
} else if (cpu_is_exynos4()) {
return exynos4_get_i2c_clk();
} else {
@@ -1778,8 +1780,6 @@ unsigned long get_i2c_clk(void)
unsigned long get_pwm_clk(void)
{
if (cpu_is_exynos5()) {
- if (proid_is_exynos5420() || proid_is_exynos5800())
- return exynos5420_get_pwm_clk();
return clock_get_periph_rate(PERIPH_ID_PWM0);
} else {
if (proid_is_exynos4412())
@@ -1790,10 +1790,28 @@ unsigned long get_pwm_clk(void)
unsigned long get_uart_clk(int dev_index)
{
+ enum periph_id id;
+
+ switch (dev_index) {
+ case 0:
+ id = PERIPH_ID_UART0;
+ break;
+ case 1:
+ id = PERIPH_ID_UART1;
+ break;
+ case 2:
+ id = PERIPH_ID_UART2;
+ break;
+ case 3:
+ id = PERIPH_ID_UART3;
+ break;
+ default:
+ debug("%s: invalid UART index %d", __func__, dev_index);
+ return -1;
+ }
+
if (cpu_is_exynos5()) {
- if (proid_is_exynos5420() || proid_is_exynos5800())
- return exynos5420_get_uart_clk(dev_index);
- return exynos5_get_uart_clk(dev_index);
+ return clock_get_periph_rate(id);
} else {
if (proid_is_exynos4412())
return exynos4x12_get_uart_clk(dev_index);
@@ -1803,10 +1821,28 @@ unsigned long get_uart_clk(int dev_index)
unsigned long get_mmc_clk(int dev_index)
{
+ enum periph_id id;
+
+ switch (dev_index) {
+ case 0:
+ id = PERIPH_ID_SDMMC0;
+ break;
+ case 1:
+ id = PERIPH_ID_SDMMC1;
+ break;
+ case 2:
+ id = PERIPH_ID_SDMMC2;
+ break;
+ case 3:
+ id = PERIPH_ID_SDMMC3;
+ break;
+ default:
+ debug("%s: invalid MMC index %d", __func__, dev_index);
+ return -1;
+ }
+
if (cpu_is_exynos5()) {
- if (proid_is_exynos5420() || proid_is_exynos5800())
- return exynos5420_get_mmc_clk(dev_index);
- return exynos5_get_mmc_clk(dev_index);
+ return clock_get_periph_rate(id);
} else {
return exynos4_get_mmc_clk(dev_index);
}
--
1.9.1
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