[U-Boot] [PATCH] mmc: CMD7:MMC_CMD_SELECT_CARD response fix

[Ajay Bhargav]

----- "Ajay Bhargav" <ajay.bhargav at einfochips.com> wrote:

> As per JEDEC document JESD84-A441 (page 105) response for CMD7
> (MMC_CMD_SELECT_CARD) response should be R1 instead of R1b. In uboot
> we
> never take MMC to disconnected state and on powerup its always ideal
> state which later goes to stand-by state.
> 
> from document footnote:
> R1 while selecting from Stand-By State to Transfer State; R1b while
> selecting from Disconnected State to Programming State.
> 
> Signed-off-by: Ajay Bhargav <ajay.bhargav at einfochips.com>
> ---
>  drivers/mmc/mmc.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
> index e384399..79d00f6 100644
> --- a/drivers/mmc/mmc.c
> +++ b/drivers/mmc/mmc.c
> @@ -987,7 +987,7 @@ int mmc_startup(struct mmc *mmc)
>  	/* Select the card, and put it into Transfer Mode */
>  	if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */
>  		cmd.cmdidx = MMC_CMD_SELECT_CARD;
> -		cmd.resp_type = MMC_RSP_R1b;
> +		cmd.resp_type = MMC_RSP_R1;
>  		cmd.cmdarg = mmc->rca << 16;
>  		cmd.flags = 0;
>  		err = mmc_send_cmd(mmc, &cmd, NULL);
> -- 
> 1.7.0.4

any comments on this patch??

Regards,
Ajay Bhargav