diff --git a/qcom/tuna-coresight.dtsi b/qcom/tuna-coresight.dtsi
index a43b3421..f732d799 100644
--- a/qcom/tuna-coresight.dtsi
+++ b/qcom/tuna-coresight.dtsi
@@ -3898,7 +3898,7 @@
 		real-name = "coresight-tmc-etr1";
 		qdss,buffer-size = <0x2000000>;
 		qcom,secure-component;
-	/*	memory-region = <&qdss_apps_mem>;*/
+		memory-region = <&qdss_apps_mem>;
 		coresight-csr = <&csr>;
 		csr-atid-offset = <0x108>;
 		csr-irqctrl-offset = <0x70>;
diff --git a/qcom/tuna-reserved-memory.dtsi b/qcom/tuna-reserved-memory.dtsi
index a0c6bbdf..c7654d6d 100644
--- a/qcom/tuna-reserved-memory.dtsi
+++ b/qcom/tuna-reserved-memory.dtsi
@@ -122,6 +122,12 @@
 		reg = <0x0 0x82700000 0x0 0x100000>;
 	};
 
+	qdss_apps_mem: qdss_apps_region@82800000 {
+		compatible = "shared-dma-pool";
+		reg = <0x0 0x82800000 0x0 0x2000000>;
+		reusable;
+	};
+
 	dsm_partition_1_mem: dsm_partition_1_region@84a00000 {
 		no-map;
 		reg = <0x0 0x84a00000 0x0 0x4900000>;