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Diffstat (limited to 'drivers/mmc/core/sd.c')
| -rw-r--r-- | drivers/mmc/core/sd.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index bb518a8850e1..1c5ac7471466 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -514,6 +514,13 @@ static int sd_set_bus_speed_mode(struct mmc_card *card, u8 *status) else { mmc_set_timing(card->host, timing); mmc_set_clock(card->host, card->sw_caps.uhs_max_dtr); + + /* + * FIXME: Sandisk SD3.0 cards DDR50 mode requires such + * delay to get stable, without this delay we may encounter + * CRC errors after switch to DDR50 mode + */ + mmc_delay(100); } return 0; |