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 <[email protected]> --- drivers/mmc/mmc.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index e384399..79d00f6 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -987,7 +987,7 @@ 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); -- 1.7.0.4 _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
