diff --git a/.gitmodules b/.gitmodules
index 2d28230a83..118e023deb 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -45,3 +45,8 @@
 [submodule "lib/fsp"]
 	path = lib/fsp
 	url = https://github.com/renesas/fsp.git
+[submodule "lib/wiznet"]
+	path = lib/wiznet5k
+	url = https://github.com/andrewleech/wiznet_ioLibrary_Driver.git
+	# Requires https://github.com/Wiznet/ioLibrary_Driver/pull/120
+	# url = https://github.com/Wiznet/ioLibrary_Driver.git
diff --git a/lib/wiznet5k b/lib/wiznet5k
new file mode 160000
index 0000000000..0803fc519a
--- /dev/null
+++ b/lib/wiznet5k
@@ -0,0 +1 @@
+Subproject commit 0803fc519ad7227e841287fb3638d6c8b2f111a1