[PATCH] mci: eMMC responds to CMD12 with R1 in case of read

Yann Sionneau ysionneau at kalrayinc.com
Wed Nov 29 01:40:13 PST 2023


Please disregard this patch, I'll re-send a new one that actually applies...

On 29/11/2023 10:36, Yann Sionneau wrote:
> eMMC specification JESD84-B51 states page 126
> table 49 — Basic commands (class 0 and class 1) that
> CMD12 (STOP_TRANSMISSION) response is R1 for read cases
> and R1b for write cases.
>
> Fix wrong reponse type in eMMC read cases.
>
> Signed-off-by: Yann Sionneau <ysionneau at kalrayinc.com>
> ---
>   drivers/mci/mci-core.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c
> index 3cd6fc73f4..f34023f580 100644
> --- a/drivers/mci/mci-core.c
> +++ b/drivers/mci/mci-core.c
> @@ -298,7 +298,8 @@ static int mci_read_block(struct mci *mci, void *dst, int blocknum,
>   	ret = mci_send_cmd(mci, &cmd, &data);
>   
>   	if (ret || blocks > 1) {
> -		mci_setup_cmd(&cmd, MMC_CMD_STOP_TRANSMISSION, 0, MMC_RSP_R1);
> +		mci_setup_cmd(&cmd, MMC_CMD_STOP_TRANSMISSION, 0,
> +			      IS_SD(mci) ? MMC_RSP_R1b : MMC_RSP_R1);
>   		mci_send_cmd(mci, &cmd, NULL);
>   	}
>   	return ret;







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