mmc: mmc_spi: Print verbose debug output when crc16 check fails
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>
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 @@
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;
}