diff --git a/configs/glacier_ramboot_defconfig b/configs/glacier_ramboot_defconfig
index 4fc2303..e5b402e 100644
--- a/configs/glacier_ramboot_defconfig
+++ b/configs/glacier_ramboot_defconfig
@@ -3,3 +3,6 @@
 CONFIG_4xx=y
 CONFIG_TARGET_CANYONLANDS=y
 CONFIG_GLACIER=y
+CONFIG_DEFAULT_DEVICE_TREE="glacier"
+CONFIG_OF_CONTROL=y
+CONFIG_OF_SEPARATE=y