On a KSZ9477-EVB (SAMA5D3), saveenv fails on the first attempt after the SD card has been freshly flashed, and larger raw writes to the card fail as well:
ERROR: atmel_mci [email protected]: command/data timeout ERROR: atmel_mci [email protected]: command/data timeout The card is still programming a previous write when the next read command arrives, and does not answer it. barebox already waits for the card to become ready before writes, but reads can still hit it while it is busy. The first patch makes the atmel_mci timeout message say which command failed and how, which is what pointed to the cause. The second patch waits for the card to become ready after each block write. Signed-off-by: Sascha Hauer <[email protected]> --- Sascha Hauer (2): mci: atmel_mci: improve timeout error message mci: wait for card to leave programming state after block writes drivers/mci/atmel_mci_common.c | 4 +++- drivers/mci/mci-core.c | 11 ++++++++++- 2 files changed, 13 insertions(+), 2 deletions(-) --- base-commit: 6b2dee07d7189bcec749539574ff99580880e238 change-id: 20261019-atmel-mci-fixes-994fa7c17ffe Best regards, -- Sascha Hauer <[email protected]>
