diff --git a/configs/s400_defconfig b/configs/s400_defconfig
index 0e2ca70..8e22c95 100644
--- a/configs/s400_defconfig
+++ b/configs/s400_defconfig
@@ -26,6 +26,7 @@
 CONFIG_SYS_MAXARGS=32
 # CONFIG_CMD_BDI is not set
 # CONFIG_CMD_IMI is not set
+CONFIG_CMD_DFU=y
 CONFIG_CMD_GPIO=y
 # CONFIG_CMD_LOADS is not set
 CONFIG_CMD_MMC=y
@@ -35,6 +36,7 @@
 CONFIG_CMD_REGULATOR=y
 CONFIG_OF_CONTROL=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_DFU_RAM=y
 CONFIG_MMC_MESON_GX=y
 CONFIG_PHY_REALTEK=y
 CONFIG_ETH_DESIGNWARE_MESON8B=y