diff --git a/qcom/holi.dtsi b/qcom/holi.dtsi
index c1be35a001d9..3c7da88b91b8 100644
--- a/qcom/holi.dtsi
+++ b/qcom/holi.dtsi
@@ -935,6 +935,33 @@
 		status = "disabled";
 	};
 
+	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";
+		};
+
+		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";
diff --git a/qcom/shima.dtsi b/qcom/shima.dtsi
index c4720119ba1e..31d7e7539ce3 100644
--- a/qcom/shima.dtsi
+++ b/qcom/shima.dtsi
@@ -576,6 +576,33 @@
 		compatible = "qcom,secure-buffer";
 	};
 
+	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";
+		};
+
+		qcom,client_3 {
+			compatible = "qcom,memshare-peripheral";
+			qcom,peripheral-size = <0x500000>;
+			qcom,client-id = <1>;
+			qcom,allocate-on-request;
+			label = "modem";
+		};
+	};
+
 	qcom,msm-imem@146aa000 {
 		compatible = "qcom,msm-imem";
 		reg = <0x146aa000 0x1000>;