arm64: dts: ti: k3-am65-mcu: add cpsw nuss node

Add DT node for the TI AM65x SoC Gigabit Ethernet two ports Switch
subsystem (CPSW NUSS).

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Tested-by: Murali Karicheri <m-karicheri2@ti.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi

@@ -187,4 +187,53 @@
 			#size-cells = <0>;
 		};
 	};
+
+	mcu_cpsw: ethernet@46000000 {
+		compatible = "ti,am654-cpsw-nuss";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		reg = <0x0 0x46000000 0x0 0x200000>;
+		reg-names = "cpsw_nuss";
+		ranges = <0x0 0x0 0x0 0x46000000 0x0 0x200000>;
+		dma-coherent;
+		clocks = <&k3_clks 5 10>;
+		clock-names = "fck";
+		power-domains = <&k3_pds 5 TI_SCI_PD_EXCLUSIVE>;
+
+		dmas = <&mcu_udmap 0xf000>,
+		       <&mcu_udmap 0xf001>,
+		       <&mcu_udmap 0xf002>,
+		       <&mcu_udmap 0xf003>,
+		       <&mcu_udmap 0xf004>,
+		       <&mcu_udmap 0xf005>,
+		       <&mcu_udmap 0xf006>,
+		       <&mcu_udmap 0xf007>,
+		       <&mcu_udmap 0x7000>;
+		dma-names = "tx0", "tx1", "tx2", "tx3",
+			    "tx4", "tx5", "tx6", "tx7",
+			    "rx";
+
+		ethernet-ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			cpsw_port1: port@1 {
+				reg = <1>;
+				ti,mac-only;
+				label = "port1";
+				ti,syscon-efuse = <&mcu_conf 0x200>;
+				phys = <&phy_gmii_sel 1>;
+			};
+		};
+
+		davinci_mdio: mdio@f00 {
+			compatible = "ti,cpsw-mdio","ti,davinci_mdio";
+			reg = <0x0 0xf00 0x0 0x100>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&k3_clks 5 10>;
+			clock-names = "fck";
+			bus_freq = <1000000>;
+		};
+	};
 };

arch/arm64/boot/dts/ti/k3-am65.dtsi

@@ -30,6 +30,7 @@
 		i2c3 = &main_i2c1;
 		i2c4 = &main_i2c2;
 		i2c5 = &main_i2c3;
+		ethernet0 = &cpsw_port1;
 	};
 
 	chosen { };