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ignore CRC for SD_CMD55

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This commit is contained in:
Lok Tep
2016-06-20 10:55:38 +02:00
parent 6f2e37e3ad
commit 495e475357
1 changed files with 2 additions and 2 deletions
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arch/arm/src/stm32f7/stm32_sdmmc.c
+2 -2
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@@ -2093,7 +2093,7 @@ static int stm32_recvshortcrc(FAR struct sdio_dev_s *dev, uint32_t cmd, uint32_t
else
#endif
{
/* Check if a timeout or CRC error occurred */
/* Check if a timeout or CRC error occurred (not for SD_CMD55 - see ERRATA) */
regval = getreg32(STM32_SDMMC1_STA);
if ((regval & SDIO_STA_CTIMEOUT) != 0)
@@ -2101,7 +2101,7 @@ static int stm32_recvshortcrc(FAR struct sdio_dev_s *dev, uint32_t cmd, uint32_t
ferr("ERROR: Command timeout: %08x\n", regval);
ret = -ETIMEDOUT;
}
else if ((regval & SDIO_STA_CCRCFAIL) != 0)
else if (cmd != SD_CMD55 && (regval & SDIO_STA_CCRCFAIL) != 0)
{
ferr("ERROR: CRC failure: %08x\n", regval);
ret = -EIO;