For some reason the sama5d3 needs a delay after a MMC_CMD_STOP_TRANSMISSION command. Without it writing fails with: ERROR: atmel_mci f0000000.mmc@f0000000: command/data timeout ERROR: atmel_mci f0000000.mmc@f0000000: command/data timeout The reason is not yet clear, so live with this hack for now. Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> --- drivers/mci/atmel_mci.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mci/atmel_mci.c b/drivers/mci/atmel_mci.c index 0d3b245ced..122d999087 100644 --- a/drivers/mci/atmel_mci.c +++ b/drivers/mci/atmel_mci.c @@ -468,6 +468,10 @@ static int atmci_request(struct mci_host *mci, struct mci_cmd *cmd, struct mci_d } stat = atmci_poll_status(host, ATMCI_CMDRDY); + + if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION) + mdelay(5); + return atmci_cmd_done(host, stat); } -- 2.19.1 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
