diff --git a/configs/tqma6s_wru4_mmc_defconfig b/configs/tqma6s_wru4_mmc_defconfig
index 898d334..f72f09e 100644
--- a/configs/tqma6s_wru4_mmc_defconfig
+++ b/configs/tqma6s_wru4_mmc_defconfig
@@ -4,6 +4,7 @@
 CONFIG_TARGET_TQMA6=y
 CONFIG_TQMA6S=y
 CONFIG_WRU4=y
+CONFIG_NR_DRAM_BANKS=1
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y