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mmc: CMD7:MMC_CMD_SELECT_CARD response fix

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As per JEDEC document JESD84-A441 (page 105) response for CMD7
(MMC_CMD_SELECT_CARD) response should be R1 instead of R1b. In uboot we
never take MMC to disconnected state and on powerup its always ideal
state which later goes to stand-by state.

from document footnote:
R1 while selecting from Stand-By State to Transfer State; R1b while
selecting from Disconnected State to Programming State.

Signed-off-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
This commit is contained in:
Ajay Bhargav 2011-10-05 03:13:23 +00:00 • committed by Andy Fleming
parent 4137894e04
commit fe8f7066d3
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/mmc.c
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@ -988,7 +988,7 @@ int mmc_startup(struct mmc *mmc)
/* Select the card, and put it into Transfer Mode */
if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */
cmd.cmdidx = MMC_CMD_SELECT_CARD;
cmd.resp_type = MMC_RSP_R1b;
cmd.resp_type = MMC_RSP_R1;
cmd.cmdarg = mmc->rca << 16;
cmd.flags = 0;
err = mmc_send_cmd(mmc, &cmd, NULL);