diff --git a/qcom/sun-dma-heaps.dtsi b/qcom/sun-dma-heaps.dtsi
index 25350f01..26cc40fc 100644
--- a/qcom/sun-dma-heaps.dtsi
+++ b/qcom/sun-dma-heaps.dtsi
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: BSD-3-Clause
 /*
- * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 #include <dt-bindings/arm/msm/qcom_dma_heap_dt_constants.h>
@@ -48,5 +48,11 @@
 			memory-region = <&spu_modem_shared_mem>;
 			qcom,token = <0x10800000>;
 		};
+
+		qcom,secure_cdsp {
+			qcom,dma-heap-name = "qcom,cma-secure-cdsp";
+			qcom,dma-heap-type = <HEAP_TYPE_CMA>;
+			memory-region = <&cdsp_secure_heap_cma>;
+		};
 	};
 };
diff --git a/qcom/sun.dtsi b/qcom/sun.dtsi
index 5bcfc69c..78974edf 100644
--- a/qcom/sun.dtsi
+++ b/qcom/sun.dtsi
@@ -3709,6 +3709,14 @@
 		alignment = <0x0 0x400000>;
 		size = <0x0 0x1000000>;
 	};
+
+	cdsp_secure_heap_cma: secure_cdsp_region { /* Secure DSP */
+		compatible = "shared-dma-pool";
+		alloc-ranges = <0x0 0x00000000 0x0 0xffffffff>;
+		reusable;
+		alignment = <0x0 0x400000>;
+		size = <0x0 0x4800000>;
+	};
 };
 
 #include "sun-dma-heaps.dtsi"