diff --git a/arch/arm/imx-common/spl.c b/arch/arm/imx-common/spl.c
index 325ba26340..bdcda7de93 100644
--- a/arch/arm/imx-common/spl.c
+++ b/arch/arm/imx-common/spl.c
@@ -14,9 +14,6 @@
 #include <spl.h>
 
 #if defined(CONFIG_MX6)
-#define MX6_MMC_PORT_MASK	GENMASK(12, 11)
-#define MX6_MMC_PORT_2		BIT(11)
-
 /* determine boot device from SRC_SBMR1 (BOOT_CFG[4:1]) or SRC_GPR9 register */
 u32 spl_boot_device(void)
 {
@@ -58,11 +55,10 @@ u32 spl_boot_device(void)
 	/* SD/eSD: 8.5.3, Table 8-15  */
 	case 0x4:
 	case 0x5:
+		return BOOT_DEVICE_MMC1;
 	/* MMC/eMMC: 8.5.3 */
 	case 0x6:
 	case 0x7:
-		if ((reg & MX6_MMC_PORT_MASK) == MX6_MMC_PORT_2)
-			return BOOT_DEVICE_MMC2;
 		return BOOT_DEVICE_MMC1;
 	/* NAND Flash: 8.5.2 */
 	case 0x8 ... 0xf: