[U-Boot] [PATCH] mmc: set tran_speed intead of hard setting

[Minkyu Kang]

Dear Wolfgang Denk,

On 25 October 2010 13:19, Jaehoon Chung <jh80.chung at samsung.com> wrote:
> This patch use card's tran_speed instead of hard setting value.
> I think mmc_set_clock(mmc, 52000000) is not good idea.
> because this is hard setting. we need use card's tran_speed.
>
> So If card_caps did't support High speed, we need set card's speed value
>
>
> Signed-off-by: Jaehoon Chung <jh80.chung at samsung.com>
> Signed-off-by: Minkyu Kang <mk7.kang at samsung.com>
> Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
>
>
> ---
>  drivers/mmc/mmc.c |    9 +++++----
>  1 files changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
> index c543d83..f1b5552 100644
> --- a/drivers/mmc/mmc.c
> +++ b/drivers/mmc/mmc.c
> @@ -815,11 +815,12 @@ int mmc_startup(struct mmc *mmc)
>
>                if (mmc->card_caps & MMC_MODE_HS) {
>                        if (mmc->card_caps & MMC_MODE_HS_52MHz)
> -                               mmc_set_clock(mmc, 52000000);
> +                               mmc->tran_speed = 52000000;
>                        else
> -                               mmc_set_clock(mmc, 26000000);
> -               } else
> -                       mmc_set_clock(mmc, 20000000);
> +                               mmc->tran_speed = 26000000;
> +               }
> +
> +               mmc_set_clock(mmc, mmc->tran_speed);
>        }
>
>        /* fill in device description */
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This patch has already been reviewed by Andy.
http://lists.denx.de/pipermail/u-boot/2010-May/071213.html

Thanks
Minkyu Kang
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