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mmc: mmc_spi: Read R2 response for send status command - CMD13

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Send status command (CMD13) will send R1 response under SD mode
but R2 response under SPI mode.

R2 response is 2 bytes long, so read 2 bytes for mmc SPI mode

Signed-off-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Bin Meng <bin.meng@windriver.com>
This commit is contained in:
Pragnesh Patel 2020-06-29 15:17:27 +05:30 committed by Peng Fan
parent 810bc13803
commit 70f176ae82
1 changed files with 8 additions and 3 deletions
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11
drivers/mmc/mmc_spi.c
View file

@ -266,7 +266,7 @@ static int dm_mmc_spi_request(struct udevice *dev, struct mmc_cmd *cmd,
u8 *resp = NULL;
u32 resp_size = 0;
bool resp_match = false;
u8 resp8 = 0, resp40[5] = { 0 }, resp_match_value = 0;
u8 resp8 = 0, resp16[2] = { 0 }, resp40[5] = { 0 }, resp_match_value = 0;
dm_spi_claim_bus(dev);
@ -291,6 +291,9 @@ static int dm_mmc_spi_request(struct udevice *dev, struct mmc_cmd *cmd,
resp_size = sizeof(resp40);
break;
case MMC_CMD_SEND_STATUS:
resp = (u8 *)&resp16[0];
resp_size = sizeof(resp16);
break;
case MMC_CMD_SET_BLOCKLEN:
case MMC_CMD_SPI_CRC_ON_OFF:
case MMC_CMD_STOP_TRANSMISSION:
@ -335,8 +338,10 @@ static int dm_mmc_spi_request(struct udevice *dev, struct mmc_cmd *cmd,
cmd->response[0] |= (uint)resp40[1] << 24;
break;
case MMC_CMD_SEND_STATUS:
cmd->response[0] = (resp8 & 0xff) ?
MMC_STATUS_ERROR : MMC_STATUS_RDY_FOR_DATA;
if (resp16[0] || resp16[1])
cmd->response[0] = MMC_STATUS_ERROR;
else
cmd->response[0] = MMC_STATUS_RDY_FOR_DATA;
break;
case MMC_CMD_SEND_CID:
case MMC_CMD_SEND_CSD: