Add some verbose debug output when crc16 check fails.

Signed-off-by: Bin Meng bmeng.cn@gmail.com Reviewed-by: Jaehoon Chung jh80.chung@samsung.com

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Changes in v3: - use expected/got instead of expect/get

Changes in v2: - do the crc_ok assignment at the the same line where it's defined

drivers/mmc/mmc_spi.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/mmc_spi.c b/drivers/mmc/mmc_spi.c index 46800bb..23b9073 100644 --- a/drivers/mmc/mmc_spi.c +++ b/drivers/mmc/mmc_spi.c @@ -181,8 +181,10 @@ static int mmc_spi_readdata(struct udevice *dev, if (ret) return ret; #ifdef CONFIG_MMC_SPI_CRC_ON - if (be16_to_cpu(crc16_ccitt(0, buf, bsize)) != crc) { - debug("%s: data crc error\n", __func__); + u16 crc_ok = be16_to_cpu(crc16_ccitt(0, buf, bsize)); + if (crc_ok != crc) { + debug("%s: data crc error, expected %04x got %04x\n", + __func__, crc_ok, crc); r1 = R1_SPI_COM_CRC; break; }