Re: [RFC PATCH 04/15] sd: emmc: Update CMD1 definition for eMMC

[Alistair Francis]

On Thu, Feb 11, 2021 at 12:17 AM Sai Pavan Boddu
<sai.pavan.boddu@xilinx.com> wrote:
>
> Add support to Power up the card and send response r3 in case of eMMC.
>
> Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>

Acked-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  hw/sd/sd.c | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/hw/sd/sd.c b/hw/sd/sd.c
> index 57fff89..e3738b2 100644
> --- a/hw/sd/sd.c
> +++ b/hw/sd/sd.c
> @@ -1033,8 +1033,16 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, 
> SDRequest req)
>          break;
>
>      case 1:    /* CMD1:   SEND_OP_CMD */
> -        if (!sd->spi)
> +        /* MMC: Powerup & send r3
> +         * SD: send r1 in spi mode
> +         */
> +        if (sd->emmc) {
> +            sd_ocr_powerup(sd);
> +            return sd->state == sd_idle_state ?
> +                   sd_r3 : sd_r0;
> +        } else if (!sd->spi) {
>              goto bad_cmd;
> +        }
>
>          sd->state = sd_transfer_state;
>          return sd_r1;
> --
> 2.7.4
>
>