diff --git a/.gitmodules b/.gitmodules
index 4fb26b555e..4612b3d0c9 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "framework"]
 	path = framework
 	url = https://github.com/Mbed-TLS/mbedtls-framework
+[submodule "tf-psa-crypto"]
+	path = tf-psa-crypto
+	url = https://github.com/Mbed-TLS/TF-PSA-Crypto.git
diff --git a/tf-psa-crypto b/tf-psa-crypto
new file mode 160000
index 0000000000..26bc88ccd7
--- /dev/null
+++ b/tf-psa-crypto
@@ -0,0 +1 @@
+Subproject commit 26bc88ccd708e8f5748b5aa90691980d5bb111c0