After rework of code by:
commit: d952796 Exynos5: Use clock_get_periph_rate generic API
function get_mmc_clk() always returns -1 for Exynos 4.
This was caused by omitting, that SDHCI driver for Exynos 4, calls get_mmc_clk(), with mmc device number as argument, instead of pinmux peripheral id, like DW MMC driver for Exynos 5.
By this commit, the code directly calls a proper function to get mmc clock for Exynos 4, without checking the peripheral id.
Tested on: Odroid U3/X2, Trats, Trats2, Odroid XU3, Snow (by Simon).
Signed-off-by: Przemyslaw Marczak p.marczak@samsung.com Acked-by: Jaehoon Chung jh80.chung@samsung.com Acked-by: Simon Glass sjg@chromium.org Tested-by: Simon Glass sjg@chromium.org --- Changes V2: - cleanup commit message Changes V3: - add acked-by: Simon and Jaehoon and tested-by: Simon --- arch/arm/mach-exynos/clock.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/arch/arm/mach-exynos/clock.c b/arch/arm/mach-exynos/clock.c index 1c6baa1..18eadf5 100644 --- a/arch/arm/mach-exynos/clock.c +++ b/arch/arm/mach-exynos/clock.c @@ -1661,6 +1661,9 @@ unsigned long get_mmc_clk(int dev_index) { enum periph_id id;
+ if (cpu_is_exynos4()) + return exynos4_get_mmc_clk(dev_index); + switch (dev_index) { case 0: id = PERIPH_ID_SDMMC0; @@ -1679,12 +1682,7 @@ unsigned long get_mmc_clk(int dev_index) return -1; }
- if (cpu_is_exynos5()) - return clock_get_periph_rate(id); - else if (cpu_is_exynos4()) - return exynos4_get_mmc_clk(dev_index); - - return 0; + return clock_get_periph_rate(id); }
void set_mmc_clk(int dev_index, unsigned int div)