diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 9d0767687e12660b8186a08dbb5c16e0ac64ba6c..c279fbc4c2e54059d3c06fcec327b59df287bb84 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -994,8 +994,8 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
 	clk |= SDHCI_CLOCK_INT_EN;
 	sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
 
-	/* Wait max 10 ms */
-	timeout = 10;
+	/* Wait max 20 ms */
+	timeout = 20;
 	while (!((clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL))
 		& SDHCI_CLOCK_INT_STABLE)) {
 		if (timeout == 0) {