arm: dts: k3-am64: Add support for ESM device nodes

Enable access to ESM0 configuration space and add Main ESM0 and MCU ESM
nodes to the AM64 device tree.

Signed-off-by: Hari Nagalla <hnagalla@ti.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
diff --git a/arch/arm/dts/k3-am64.dtsi b/arch/arm/dts/k3-am64.dtsi
index de6805b..7aa94d5 100644
--- a/arch/arm/dts/k3-am64.dtsi
+++ b/arch/arm/dts/k3-am64.dtsi
@@ -64,6 +64,7 @@
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges = <0x00 0x000f4000 0x00 0x000f4000 0x00 0x000002d0>, /* PINCTRL */
+			 <0x00 0x00420000 0x00 0x00420000 0x00 0x00001000>, /* ESM0 */
 			 <0x00 0x00600000 0x00 0x00600000 0x00 0x00001100>, /* GPIO */
 			 <0x00 0x00a40000 0x00 0x00a40000 0x00 0x00000800>, /* Timesync router */
 			 <0x00 0x01000000 0x00 0x01000000 0x00 0x02330400>, /* First peripheral window */
diff --git a/arch/arm/dts/k3-am642-r5-evm.dts b/arch/arm/dts/k3-am642-r5-evm.dts
index cc48fd4..3ea6471 100644
--- a/arch/arm/dts/k3-am642-r5-evm.dts
+++ b/arch/arm/dts/k3-am642-r5-evm.dts
@@ -82,6 +82,25 @@
 	};
 };
 
+&cbass_main {
+	main_esm: esm@420000 {
+		compatible = "ti,j721e-esm";
+		reg = <0x0 0x420000 0x0 0x1000>;
+		ti,esm-pins = <160>, <161>;
+		u-boot,dm-spl;
+	};
+};
+
+&cbass_mcu {
+	u-boot,dm-spl;
+	mcu_esm: esm@4100000 {
+		compatible = "ti,j721e-esm";
+		reg = <0x0 0x4100000 0x0 0x1000>;
+		ti,esm-pins = <0>, <1>;
+		u-boot,dm-spl;
+	};
+};
+
 &main_pmx0 {
 	u-boot,dm-spl;
 	main_uart0_pins_default: main-uart0-pins-default {
diff --git a/arch/arm/dts/k3-am642-r5-sk.dts b/arch/arm/dts/k3-am642-r5-sk.dts
index 7d1cb85..1f96e3f 100644
--- a/arch/arm/dts/k3-am642-r5-sk.dts
+++ b/arch/arm/dts/k3-am642-r5-sk.dts
@@ -75,6 +75,25 @@
 	};
 };
 
+&cbass_main {
+	main_esm: esm@420000 {
+		compatible = "ti,j721e-esm";
+		reg = <0x0 0x420000 0x0 0x1000>;
+		ti,esm-pins = <160>, <161>;
+		u-boot,dm-spl;
+	};
+};
+
+&cbass_mcu {
+	u-boot,dm-spl;
+	mcu_esm: esm@4100000 {
+		compatible = "ti,j721e-esm";
+		reg = <0x0 0x4100000 0x0 0x1000>;
+		ti,esm-pins = <0>, <1>;
+		u-boot,dm-spl;
+	};
+};
+
 &main_pmx0 {
 	u-boot,dm-spl;
 	main_uart0_pins_default: main-uart0-pins-default {