arm64: dts: ti: k3-j7200-common-proc-board: add mcu cpsw nuss pinmux and phy defs

The TI J7200 EVM base board has TI DP83867 PHY connected to external CPSW
NUSS Port 1 in rgmii-rxid mode.

Hence, add pinmux and Ethernet PHY configuration for TI J7200 SoC MCU
Gigabit Ethernet two ports Switch subsystem (CPSW NUSS).

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20200923220938.30788-5-grygorii.strashko@ti.com

arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts

@@ -6,6 +6,7 @@
 /dts-v1/;
 
 #include "k3-j7200-som-p0.dtsi"
+#include <dt-bindings/net/ti-dp83867.h>
 
 / {
 	chosen {
@@ -14,6 +15,32 @@
 	};
 };
 
+&wkup_pmx0 {
+	mcu_cpsw_pins_default: mcu-cpsw-pins-default {
+		pinctrl-single,pins = <
+			J721E_WKUP_IOPAD(0x0068, PIN_OUTPUT, 0) /* MCU_RGMII1_TX_CTL */
+			J721E_WKUP_IOPAD(0x006c, PIN_INPUT, 0) /* MCU_RGMII1_RX_CTL */
+			J721E_WKUP_IOPAD(0x0070, PIN_OUTPUT, 0) /* MCU_RGMII1_TD3 */
+			J721E_WKUP_IOPAD(0x0074, PIN_OUTPUT, 0) /* MCU_RGMII1_TD2 */
+			J721E_WKUP_IOPAD(0x0078, PIN_OUTPUT, 0) /* MCU_RGMII1_TD1 */
+			J721E_WKUP_IOPAD(0x007c, PIN_OUTPUT, 0) /* MCU_RGMII1_TD0 */
+			J721E_WKUP_IOPAD(0x0088, PIN_INPUT, 0) /* MCU_RGMII1_RD3 */
+			J721E_WKUP_IOPAD(0x008c, PIN_INPUT, 0) /* MCU_RGMII1_RD2 */
+			J721E_WKUP_IOPAD(0x0090, PIN_INPUT, 0) /* MCU_RGMII1_RD1 */
+			J721E_WKUP_IOPAD(0x0094, PIN_INPUT, 0) /* MCU_RGMII1_RD0 */
+			J721E_WKUP_IOPAD(0x0080, PIN_INPUT, 0) /* MCU_RGMII1_TXC */
+			J721E_WKUP_IOPAD(0x0084, PIN_INPUT, 0) /* MCU_RGMII1_RXC */
+		>;
+	};
+
+	mcu_mdio_pins_default: mcu-mdio1-pins-default {
+		pinctrl-single,pins = <
+			J721E_WKUP_IOPAD(0x009c, PIN_OUTPUT, 0) /* (L1) MCU_MDIO0_MDC */
+			J721E_WKUP_IOPAD(0x0098, PIN_INPUT, 0) /* (L4) MCU_MDIO0_MDIO */
+		>;
+	};
+};
+
 &wkup_uart0 {
 	/* Wakeup UART is used by System firmware */
 	status = "disabled";
@@ -63,3 +90,21 @@
 	/* UART not brought out */
 	status = "disabled";
 };
+
+&mcu_cpsw {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mcu_cpsw_pins_default &mcu_mdio_pins_default>;
+};
+
+&davinci_mdio {
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
+		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+	};
+};
+
+&cpsw_port1 {
+	phy-mode = "rgmii-rxid";
+	phy-handle = <&phy0>;
+};