diff options
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 9 | ||||
| -rw-r--r-- | include/linux/mmc/sdhci.h | 2 |
2 files changed, 9 insertions, 2 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index f895ab07fcc2..a743d5227eda 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -915,10 +915,15 @@ static void sdhci_set_transfer_mode(struct sdhci_host *host, struct mmc_data *data = cmd->data; if (data == NULL) { + if (host->quirks2 & + SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD) { + sdhci_writew(host, 0x0, SDHCI_TRANSFER_MODE); + } else { /* clear Auto CMD settings for no data CMDs */ - mode = sdhci_readw(host, SDHCI_TRANSFER_MODE); - sdhci_writew(host, mode & ~(SDHCI_TRNS_AUTO_CMD12 | + mode = sdhci_readw(host, SDHCI_TRANSFER_MODE); + sdhci_writew(host, mode & ~(SDHCI_TRNS_AUTO_CMD12 | SDHCI_TRNS_AUTO_CMD23), SDHCI_TRANSFER_MODE); + } return; } diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h index 931ac5e05453..ae7f357b78c9 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -102,6 +102,8 @@ struct sdhci_host { #define SDHCI_QUIRK2_STOP_WITH_TC (1<<8) /* Controller does not support 64-bit DMA */ #define SDHCI_QUIRK2_BROKEN_64_BIT_DMA (1<<9) +/* need clear transfer mode register before send cmd */ +#define SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD (1<<10) int irq; /* Device IRQ */ void __iomem *ioaddr; /* Mapped address */ |