diff --git a/qcom/ravelin-4gb.dtsi b/qcom/ravelin-4gb.dtsi
index 4a2add1a..898bec7f 100644
--- a/qcom/ravelin-4gb.dtsi
+++ b/qcom/ravelin-4gb.dtsi
@@ -2,5 +2,9 @@
 / {
 };
 
+&mem_client_3_size {
+	qcom,peripheral-size = <0x200000>;
+};
+
 &soc {
 };
diff --git a/qcom/ravelin.dtsi b/qcom/ravelin.dtsi
index db3b2fbc..c9176815 100644
--- a/qcom/ravelin.dtsi
+++ b/qcom/ravelin.dtsi
@@ -746,6 +746,33 @@
 		#mbox-cells = <2>;
 	};
 
+	qcom,memshare {
+		compatible = "qcom,memshare";
+
+		qcom,client_1 {
+			compatible = "qcom,memshare-peripheral";
+			qcom,peripheral-size = <0x0>;
+			qcom,client-id = <0>;
+			qcom,allocate-boot-time;
+			label = "modem";
+		};
+
+		qcom,client_2 {
+			compatible = "qcom,memshare-peripheral";
+			qcom,peripheral-size = <0x0>;
+			qcom,client-id = <2>;
+			label = "modem";
+		};
+
+		mem_client_3_size: qcom,client_3 {
+			compatible = "qcom,memshare-peripheral";
+			qcom,peripheral-size = <0x500000>;
+			qcom,client-id = <1>;
+			qcom,allocate-on-request;
+			label = "modem";
+		};
+	};
+
 	clocks {
 		xo_board: xo_board {
 			compatible = "fixed-clock";