diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index b6558b829a9cb6c3794be9451e12dbd912f8de10..d065e3749e560685691bdf14714a5131f98c6653 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -80,7 +80,7 @@ static void sdhci_s3c_check_sclk(struct sdhci_host *host)
 
 		tmp &= ~S3C_SDHCI_CTRL2_SELBASECLK_MASK;
 		tmp |= ourhost->cur_clk << S3C_SDHCI_CTRL2_SELBASECLK_SHIFT;
-		writel(tmp, host->ioaddr + 0x80);
+		writel(tmp, host->ioaddr + S3C_SDHCI_CONTROL2);
 	}
 }