new file mode 100644
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+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+
+#include "k3-j721s2.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ memory@80000000 {
+ device_type = "memory";
+ /* 16 GB RAM */
+ reg = <0x00 0x80000000 0x00 0x80000000>,
+ <0x08 0x80000000 0x03 0x80000000>;
+ };
+
+ /* Reserving memory regions still pending */
+ reserved_memory: reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ secure_ddr: optee@9e800000 {
+ reg = <0x00 0x9e800000 0x00 0x01800000>;
+ alignment = <0x1000>;
+ no-map;
+ };
+ };
+};
+
+&mailbox0_cluster0 {
+ status = "disabled";
+};
+
+&mailbox0_cluster1 {
+ status = "disabled";
+};
+
+&mailbox0_cluster2 {
+ status = "disabled";
+};
+
+&mailbox0_cluster3 {
+ status = "disabled";
+};
+
+&mailbox0_cluster4 {
+ status = "disabled";
+};
+
+&mailbox0_cluster5 {
+ status = "disabled";
+};
+
+&mailbox0_cluster6 {
+ status = "disabled";
+};
+
+&mailbox0_cluster7 {
+ status = "disabled";
+};
+
+&mailbox0_cluster8 {
+ status = "disabled";
+};
+
+&mailbox0_cluster9 {
+ status = "disabled";
+};
+
+&mailbox0_cluster10 {
+ status = "disabled";
+};
+
+&mailbox0_cluster11 {
+ status = "disabled";
+};
+
+&mailbox1_cluster0 {
+ status = "disabled";
+};
+
+&mailbox1_cluster1 {
+ status = "disabled";
+};
+
+&mailbox1_cluster2 {
+ status = "disabled";
+};
+
+&mailbox1_cluster3 {
+ status = "disabled";
+};
+
+&mailbox1_cluster4 {
+ status = "disabled";
+};
+
+&mailbox1_cluster5 {
+ status = "disabled";
+};
+
+&mailbox1_cluster6 {
+ status = "disabled";
+};
+
+&mailbox1_cluster7 {
+ status = "disabled";
+};
+
+&mailbox1_cluster8 {
+ status = "disabled";
+};
+
+&mailbox1_cluster9 {
+ status = "disabled";
+};
+
+&mailbox1_cluster10 {
+ status = "disabled";
+};
+
+&mailbox1_cluster11 {
+ status = "disabled";
+};