diff --git a/.gitmodules b/.gitmodules
index 0b34cb2608821c382eb0583dc78fbbf20bd69b63..f783cde074daee7da7c160fcb5657a5d536bb7f5 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,10 @@
+[submodule "ddr4controller"]
+	path = ddr4controller
+	url = git@gitlab.enst.fr:sdram20/ddr4controller.git
 [submodule "mcsimcoq"]
 	path = mcsimcoq
 	url = git@gitlab.enst.fr:sdram20/mcsimcoq.git
+[submodule "silveroak"]
+	path = silveroak
+	url = git@gitlab.enst.fr:sdram20/silveroak_dram.git
+