diff --git a/.gitmodules b/.gitmodules
index d4be386..8a5585b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "rocket-chip"]
 	path = rocket-chip
 	url = git@github.com:chipsalliance/rocket-chip.git
+[submodule "rocket-chip-blocks"]
+	path = rocket-chip-blocks
+	url = git@github.com:chipsalliance/rocket-chip-blocks.git
diff --git a/rocket-chip-blocks b/rocket-chip-blocks
new file mode 160000
index 0000000..07fd147
--- /dev/null
+++ b/rocket-chip-blocks
@@ -0,0 +1 @@
+Subproject commit 07fd14706916ef80519959372c27575643dfc725