mmc: sdhci: add the DMA select for SDMA

[kernel/u-boot.git] / drivers / mmc / sdhci.c

diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 9329874..15b4686 100644 (file)
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -82,6 +82,13 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data,
                                unsigned int start_addr)
 {
        unsigned int stat, rdy, mask, timeout, block = 0;
+#ifdef CONFIG_MMC_SDMA
+       unsigned char ctrl;
+       ctrl = sdhci_readl(host, SDHCI_HOST_CONTROL);
+       ctrl &= ~SDHCI_CTRL_DMA_MASK;
+       ctrl |= SDHCI_CTRL_SDMA;
+       sdhci_writel(host, ctrl, SDHCI_HOST_CONTROL);
+#endif
 
        timeout = 1000000;
        rdy = SDHCI_INT_SPACE_AVAIL | SDHCI_INT_DATA_AVAIL;