[U-Boot] [PATCH] mmc: fix to assign to corret clock value when clock is enabling

[Guillaume Gardet]

Le 23/01/2018 à 06:04, Jaehoon Chung a écrit :
> When clock is enabling, it's assigned to 0 as mmc->clock.
> Then it can't initialize any card.
> Fix to assign to correct clock value as mmc->cfg->f_min or f_max.
>
> Fixes: 9546eb92cb6 ("mmc: fix the wrong disabling clock")

I tested your patch on top of u-boot-mmc and SD/MMC is working fine on snow config (Samsung Chromebook).

Tested-by: Guillaume GARDET <guillaume.gardet at free.fr>


>
> Signed-off-by: Jaehoon Chung <jh80.chung at samsung.com>
> ---
>   drivers/mmc/mmc.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
> index 311f51f237..2d0e7bb3a2 100644
> --- a/drivers/mmc/mmc.c
> +++ b/drivers/mmc/mmc.c
> @@ -1501,7 +1501,7 @@ static int mmc_set_ios(struct mmc *mmc)
>   
>   int mmc_set_clock(struct mmc *mmc, uint clock, bool disable)
>   {
> -	if (!disable && clock != 0) {
> +	if (!disable) {
>   		if (clock > mmc->cfg->f_max)
>   			clock = mmc->cfg->f_max;
>