diff --git a/.gitmodules b/.gitmodules
index d04ab7a..6fecf58 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "lib/libalpine"]
 	path = lib/libalpine
 	url = https://github.com/parazyd/libalpine
+[submodule "extra/u-boot"]
+	path = extra/u-boot
+	url = git://git.denx.de/u-boot.git
diff --git a/extra/u-boot b/extra/u-boot
new file mode 160000
index 0000000..a63d800
--- /dev/null
+++ b/extra/u-boot
@@ -0,0 +1 @@
+Subproject commit a63d800196ebee59b0f8ff924f67843cd597a8c1