diff --git a/configs/vexpress_aemv8a_semi_defconfig b/configs/vexpress_aemv8a_semi_defconfig
index 21bfb4a..395ffa6 100644
--- a/configs/vexpress_aemv8a_semi_defconfig
+++ b/configs/vexpress_aemv8a_semi_defconfig
@@ -1,4 +1,7 @@
 CONFIG_ARM=y
 CONFIG_TARGET_VEXPRESS64_BASE_FVP=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_DEFAULT_DEVICE_TREE="vexpress64"
 CONFIG_CMD_NET=y
+CONFIG_DM=y
+CONFIG_DM_SERIAL=y