diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 84e0581..9902dbd 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -295,7 +295,7 @@
 static int sdhci_set_clock(struct mmc *mmc, unsigned int clock)
 {
 	struct sdhci_host *host = mmc->priv;
-	unsigned int div, clk = 0, timeout, reg;
+	unsigned int div, clk = 0, timeout;
 
 	/* Wait max 20 ms */
 	timeout = 200;
@@ -311,9 +311,7 @@
 		udelay(100);
 	}
 
-	reg = sdhci_readw(host, SDHCI_CLOCK_CONTROL);
-	reg &= ~(SDHCI_CLOCK_CARD_EN | SDHCI_CLOCK_INT_EN);
-	sdhci_writew(host, reg, SDHCI_CLOCK_CONTROL);
+	sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL);
 
 	if (clock == 0)
 		return 0;