diff options
| author | Thomas Chou <thomas@wytron.com.tw> | 2011-04-19 03:48:32 +0000 |
|---|---|---|
| committer | Andy Fleming <afleming@freescale.com> | 2011-05-18 14:30:34 -0500 |
| commit | ed018b21d61614e0431f6bf514bec6e4bf64fe31 (patch) | |
| tree | 846bc03655befabcbc79c0b95baf2d205c6d5ad1 /drivers/mmc | |
| parent | 0ea91423f47461bf7eaed2d4aff198076dd07fd5 (diff) | |
mmc_spi: generate response for send status command
A "send status" command is added with the commit "mmc: checking
status after commands with R1b response". But the status register
returned from send status command of SPI protocol is different from
that of MMC/SD protocol. We do a simple test and generate a response
in stead of full bit-by-bit translation.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/mmc_spi.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/mmc_spi.c b/drivers/mmc/mmc_spi.c index dc7574cbe5..49fb9e02a9 100644 --- a/drivers/mmc/mmc_spi.c +++ b/drivers/mmc/mmc_spi.c @@ -208,6 +208,11 @@ static int mmc_spi_request(struct mmc *mmc, struct mmc_cmd *cmd, cmd->response[0] = swab32(cmd->response[0]); debug("r32 %x\n", cmd->response[0]); break; + case MMC_CMD_SEND_STATUS: + spi_xfer(spi, 1 * 8, NULL, cmd->response, 0); + cmd->response[0] = (cmd->response[0] & 0xff) ? + MMC_STATUS_ERROR : MMC_STATUS_RDY_FOR_DATA; + break; } } else { debug("%s:data %x %x %x\n", __func__, |