diff --git a/openwrt_patches-21.02/130-add-tool-for-patching-fdt-with-dm-bootargs.patch b/openwrt_patches-21.02/130-add-tool-for-patching-fdt-with-dm-bootargs.patch
new file mode 100644
index 0000000..a17197d
--- /dev/null
+++ b/openwrt_patches-21.02/130-add-tool-for-patching-fdt-with-dm-bootargs.patch
@@ -0,0 +1,12 @@
+--- a/tools/Makefile
++++ b/tools/Makefile
+@@ -27,7 +27,7 @@ tools-y += e2fsprogs fakeroot findutils
+ tools-y += libressl libtool lzma m4 make-ext4fs missing-macros mkimage
+ tools-y += mklibs mm-macros mtd-utils mtools padjffs2 patch-image
+ tools-y += patchelf pkgconf quilt squashfskit4 sstrip xxd zip zlib zstd
+-tools-y += crc32sum
++tools-y += crc32sum fdt-patch-dm-verify
+ tools-$(BUILD_B43_TOOLS) += b43-tools
+ tools-$(BUILD_ISL) += isl
+ tools-$(BUILD_TOOLCHAIN) += expat gmp libelf mpc mpfr
+ 
\ No newline at end of file