diff --git a/.gitmodules b/.gitmodules
index 79fef7e0f..509b98ac2 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -22,3 +22,6 @@
 [submodule "litex/soc/cores/cpu/rocket/verilog"]
 	path = litex/soc/cores/cpu/rocket/verilog
 	url = https://github.com/enjoy-digital/rocket-litex-verilog
+[submodule "litex/soc/cores/cpu/microwatt/sources"]
+	path = litex/soc/cores/cpu/microwatt/sources
+	url = https://github.com/antonblanchard/microwatt
diff --git a/litex/soc/cores/cpu/microwatt/sources b/litex/soc/cores/cpu/microwatt/sources
new file mode 160000
index 000000000..1a826f077
--- /dev/null
+++ b/litex/soc/cores/cpu/microwatt/sources
@@ -0,0 +1 @@
+Subproject commit 1a826f077bb518bc3ffd799c47a6dd2852165f89