diff --git a/configs/nanopi_m1_defconfig b/configs/nanopi_m1_defconfig
index e0ae3c7..dfbf219 100644
--- a/configs/nanopi_m1_defconfig
+++ b/configs/nanopi_m1_defconfig
@@ -6,6 +6,7 @@
 CONFIG_DRAM_ZQ=3881979
 CONFIG_DRAM_ODT_EN=y
 CONFIG_DEFAULT_DEVICE_TREE="sun8i-h3-nanopi-m1"
+CONFIG_NR_DRAM_BANKS=1
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 # CONFIG_CMD_FLASH is not set
 # CONFIG_SPL_DOS_PARTITION is not set