diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 14fe41f6c4..dfb2eeeb4d 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -68,10 +68,9 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data,
 	unsigned int stat, rdy, mask, timeout, block = 0;
 #ifdef CONFIG_MMC_SDMA
 	unsigned char ctrl;
-	ctrl = sdhci_readl(host, SDHCI_HOST_CONTROL);
+	ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
 	ctrl &= ~SDHCI_CTRL_DMA_MASK;
-	ctrl |= SDHCI_CTRL_SDMA;
-	sdhci_writel(host, ctrl, SDHCI_HOST_CONTROL);
+	sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
 #endif
 
 	timeout = 1000000;