diff options
Diffstat (limited to 'drivers/mmc/host/sdhci.c')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index db113aba35d0..cbd433712756 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1366,11 +1366,12 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq) present_state = sdhci_readl(host, SDHCI_PRESENT_STATE); /* * Check if the re-tuning timer has already expired and there - * is no on-going data transfer. If so, we need to execute - * tuning procedure before sending command. + * is no on-going data transfer and DAT0 is not busy. If so, + * we need to execute tuning procedure before sending command. */ if ((host->flags & SDHCI_NEEDS_RETUNING) && - !(present_state & (SDHCI_DOING_WRITE | SDHCI_DOING_READ))) { + !(present_state & (SDHCI_DOING_WRITE | SDHCI_DOING_READ)) && + (present_state & SDHCI_DATA_0_LVL_MASK)) { if (mmc->card) { /* eMMC uses cmd21 but sd and sdio use cmd19 */ tuning_opcode = |