Hi On 3/31/22 01:54, Sean Anderson wrote: > The send status command expects the status register to be returned as a > response. Without writing data back, whatever is on the stack will be > interpreted as the status register. There are a lot of fields in this > register, but fortunately all zeros is interpreted as "we don't support > anything." > > Signed-off-by: Sean Anderson <[email protected]>
Reviewed-by: Jaehoon Chung <[email protected]> Best Regards, Jaehoon Chung > --- > > drivers/mmc/sandbox_mmc.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/mmc/sandbox_mmc.c b/drivers/mmc/sandbox_mmc.c > index 451fe4a4e5..35159451e1 100644 > --- a/drivers/mmc/sandbox_mmc.c > +++ b/drivers/mmc/sandbox_mmc.c > @@ -57,6 +57,7 @@ static int sandbox_mmc_send_cmd(struct udevice *dev, struct > mmc_cmd *cmd, > break; > case MMC_CMD_SEND_STATUS: > cmd->response[0] = MMC_STATUS_RDY_FOR_DATA; > + memset(data->dest, '\0', data->blocks * data->blocksize); > break; > case MMC_CMD_SELECT_CARD: > break;
