[U-Boot] [PATCH] arm: exynos: fix the div value for set_mmc_clk

[Minkyu Kang <mk7.kang@samsung.com>]

On 08/01/15 16:50, Jaehoon Chung wrote:
> The most exynos used the  "Ratio + 1" as div value.
> And value at register is "Ratio".
> So if want to set exact value, it needs to subtract one.
> 
> Value at register ("Ratio") = div - 1
> 
> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
> ---
>  arch/arm/cpu/armv7/exynos/clock.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm/cpu/armv7/exynos/clock.c b/arch/arm/cpu/armv7/exynos/clock.c
> index b31c13b..3110bb0 100644
> --- a/arch/arm/cpu/armv7/exynos/clock.c
> +++ b/arch/arm/cpu/armv7/exynos/clock.c
> @@ -1656,6 +1656,10 @@ unsigned long get_mmc_clk(int dev_index)
>  
>  void set_mmc_clk(int dev_index, unsigned int div)
>  {
> +	/* If want to set correct value, it needs to substract one from div.*/
> +	if (div > 0)
> +		div -= 1;
> +
>  	if (cpu_is_exynos5()) {
>  		if (proid_is_exynos5420() || proid_is_exynos5800())
>  			exynos5420_set_mmc_clk(dev_index, div);
> 

applied to u-boot-samsung.

Thank,
Minkyu Kang.