diff --git a/configs/puma-rk3399_defconfig b/configs/puma-rk3399_defconfig
index 10604e1..958ea16 100644
--- a/configs/puma-rk3399_defconfig
+++ b/configs/puma-rk3399_defconfig
@@ -15,6 +15,7 @@
 CONFIG_SPL_SPI_SUPPORT=y
 CONFIG_DEFAULT_DEVICE_TREE="rk3399-puma-ddr1600"
 CONFIG_DEBUG_UART=y
+CONFIG_NR_DRAM_BANKS=1
 CONFIG_FIT=y
 CONFIG_SPL_LOAD_FIT=y
 CONFIG_SPL_FIT_SOURCE="board/theobroma-systems/puma_rk3399/fit_spl_atf.its"