diff --git a/configs/T2080RDB_revD_defconfig b/configs/T2080RDB_revD_defconfig
index e01dbc5..1e5163c 100644
--- a/configs/T2080RDB_revD_defconfig
+++ b/configs/T2080RDB_revD_defconfig
@@ -5,6 +5,7 @@
 CONFIG_DEFAULT_DEVICE_TREE="t2080rdb"
 CONFIG_ENV_ADDR=0xEFF20000
 CONFIG_MPC85xx=y
+CONFIG_SYS_INIT_RAM_LOCK=y
 CONFIG_TARGET_T2080RDB=y
 CONFIG_MPC85XX_HAVE_RESET_VECTOR=y
 CONFIG_ENABLE_36BIT_PHYS=y