diff --git a/configs/opos6uldev_defconfig b/configs/opos6uldev_defconfig
index 729f9d7..f3b14e4 100644
--- a/configs/opos6uldev_defconfig
+++ b/configs/opos6uldev_defconfig
@@ -13,6 +13,7 @@
 CONFIG_SPL_LIBDISK_SUPPORT=y
 # CONFIG_CMD_BMODE is not set
 CONFIG_DEFAULT_DEVICE_TREE="imx6ul-opos6uldev"
+CONFIG_NR_DRAM_BANKS=1
 CONFIG_TPL_SYS_MALLOC_F_LEN=0x400
 CONFIG_BOOTDELAY=5
 CONFIG_USE_BOOTARGS=y