diff --git a/meta-ast2400/recipes-kernel/linux/linux-obmc/defconfig b/meta-ast2400/recipes-kernel/linux/linux-obmc/defconfig
index aad4358..e9a3182 100644
--- a/meta-ast2400/recipes-kernel/linux/linux-obmc/defconfig
+++ b/meta-ast2400/recipes-kernel/linux/linux-obmc/defconfig
@@ -71,6 +71,9 @@
 CONFIG_MTD_PARTITIONED_MASTER=y
 CONFIG_MTD_SPI_NOR=y
 CONFIG_ASPEED_FLASH_SPI=y
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_FASTMAP=y
+CONFIG_MTD_UBI_BLOCK=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=4
@@ -161,6 +164,7 @@
 CONFIG_JFFS2_FS=y
 CONFIG_JFFS2_SUMMARY=y
 CONFIG_JFFS2_FS_XATTR=y
+CONFIG_UBIFS_FS=y
 CONFIG_SQUASHFS=y
 CONFIG_SQUASHFS_XZ=y
 CONFIG_NFS_FS=y
diff --git a/meta-ast2500/recipes-kernel/linux/linux-obmc/defconfig b/meta-ast2500/recipes-kernel/linux/linux-obmc/defconfig
index 211e69d..3db5d14 100644
--- a/meta-ast2500/recipes-kernel/linux/linux-obmc/defconfig
+++ b/meta-ast2500/recipes-kernel/linux/linux-obmc/defconfig
@@ -74,6 +74,9 @@
 CONFIG_MTD_PARTITIONED_MASTER=y
 CONFIG_MTD_SPI_NOR=y
 CONFIG_ASPEED_FLASH_SPI=y
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_FASTMAP=y
+CONFIG_MTD_UBI_BLOCK=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=4
@@ -165,6 +168,7 @@
 CONFIG_JFFS2_FS=y
 CONFIG_JFFS2_SUMMARY=y
 CONFIG_JFFS2_FS_XATTR=y
+CONFIG_UBIFS_FS=y
 CONFIG_SQUASHFS=y
 CONFIG_SQUASHFS_XZ=y
 CONFIG_NFS_FS=y