[v3, 05/11] mmc: add a hs400_tuning flag

[Jaehoon Chung]

On 7/23/20 1:30 PM, Yangbo Lu wrote:
> Some controllers may have difference between HS200 tuning
> and HS400 tuning, such as different registers setting,
> different procedure, or different errata.
> 
> This patch is to add a hs400_tuning flag to identify the
> tuning for HS400 mode.
> 
> Signed-off-by: Yangbo Lu <yangbo.lu at nxp.com>
> ---
> Changes for v2:
> 	- None.
> Changes for v3:
> 	- Explained more in commit messages.
> ---
>  drivers/mmc/mmc.c | 2 ++
>  include/mmc.h     | 1 +
>  2 files changed, 3 insertions(+)
> 
> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
> index a4c6153..f020a8e 100644
> --- a/drivers/mmc/mmc.c
> +++ b/drivers/mmc/mmc.c
> @@ -1981,7 +1981,9 @@ static int mmc_select_hs400(struct mmc *mmc)
>  	mmc_set_clock(mmc, mmc->tran_speed, false);
>  
>  	/* execute tuning if needed */
> +	mmc->hs400_tuning = 1;
>  	err = mmc_execute_tuning(mmc, MMC_CMD_SEND_TUNING_BLOCK_HS200);
> +	mmc->hs400_tuning = 0;

It seems that it's fsl_esdhc specific flag. Is it need to set to 0?

Best Regards,
Jaehoon Chung

>  	if (err) {
>  		debug("tuning failed\n");
>  		return err;
> diff --git a/include/mmc.h b/include/mmc.h
> index 161b8bc..2399cc2 100644
> --- a/include/mmc.h
> +++ b/include/mmc.h
> @@ -707,6 +707,7 @@ struct mmc {
>  				  * accessing the boot partitions
>  				  */
>  	u32 quirks;
> +	u8 hs400_tuning;
>  };
>  
>  struct mmc_hwpart_conf {
>