diff --git a/arch/arm/include/asm/arch-rockchip/cru_rk3288.h b/arch/arm/include/asm/arch-rockchip/cru_rk3288.h
index cb0a935..c7e21bd 100644
--- a/arch/arm/include/asm/arch-rockchip/cru_rk3288.h
+++ b/arch/arm/include/asm/arch-rockchip/cru_rk3288.h
@@ -85,7 +85,7 @@ enum {
 	EMMC_PLL_SELECT_24MHZ,
 
 	EMMC_DIV_SHIFT		= 8,
-	EMMC_DIV_MASK		= 0x3f < EMMC_DIV_SHIFT,
+	EMMC_DIV_MASK		= 0x3f << EMMC_DIV_SHIFT,
 
 	SDIO0_PLL_SHIFT		= 6,
 	SDIO0_PLL_MASK		= 3 << SDIO0_PLL_SHIFT,