diff --git a/.gitmodules b/.gitmodules
index e69de29..4319b9a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "sysbus"]
+	path = sysbus
+	url = https://github.com/rene-d/sysbus.git
diff --git a/sysbus b/sysbus
new file mode 160000
index 0000000..bf7689c
--- /dev/null
+++ b/sysbus
@@ -0,0 +1 @@
+Subproject commit bf7689ce0abe4be75b77d35010d1d436141e8900