staging: mt7621-dts: fix GB-PC2 devicetree

Fix the GB-PC2 devicetree. Refer to the schematics of the device for more
information.

GB-PC2 devicetree fixes:
- Include mt7621.dtsi instead of gbpc1.dts. Add the missing definitions.
- Remove gpio-leds node as the system LED is not wired to anywhere on
the board and the power LED is directly wired to GND.
- Remove uart3 pin group from gpio-pinmux node as it's not used as GPIO.
- Use reg 7 for the external phy to be on par with
Documentation/devicetree/bindings/net/dsa/mt7530.txt.
- Use the status value "okay".

Link: https://github.com/ngiger/GnuBee_Docs/blob/master/GB-PCx/Documents/GB-PC2_V1.1_schematic.pdfReviewed-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20220311090320.3068-2-arinc.unal@arinc9.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/mt7621-dts/gbpc2.dts

 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 /dts-v1/;
 
-#include "gbpc1.dts"
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 
 / {
 	compatible = "gnubee,gb-pc2", "mediatek,mt7621-soc";
 	model = "GB-PC2";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x1c000000>,
+		      <0x20000000 0x04000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,57600";
+	};
+
+	palmbus: palmbus@1e000000 {
+		i2c@900 {
+			status = "okay";
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&gpio 18 GPIO_ACTIVE_HIGH>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
 };
 
-&default_gpio {
-	groups = "wdt", "uart3";
-	function = "gpio";
+&sdhci {
+	status = "okay";
+};
+
+&spi0 {
+	status = "okay";
+
+	m25p80@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <50000000>;
+		broken-flash-reset;
+
+		partition@0 {
+			label = "u-boot";
+			reg = <0x0 0x30000>;
+			read-only;
+		};
+
+		partition@30000 {
+			label = "u-boot-env";
+			reg = <0x30000 0x10000>;
+			read-only;
+		};
+
+		factory: partition@40000 {
+			label = "factory";
+			reg = <0x40000 0x10000>;
+			read-only;
+		};
+
+		partition@50000 {
+			label = "firmware";
+			reg = <0x50000 0x1fb0000>;
+		};
+	};
+};
+
+&pcie {
+	status = "okay";
+};
+
+&pinctrl {
+	pinctrl-names = "default";
+	pinctrl-0 = <&state_default>;
+
+	state_default: state-default {
+		gpio-pinmux {
+			groups = "wdt";
+			function = "gpio";
+		};
+	};
 };
 
 &ethernet {
 	gmac1: mac@1 {
-		status = "ok";
-		phy-handle = <&phy_external>;
+		status = "okay";
+		phy-handle = <&ethphy7>;
 	};
 
 	mdio-bus {
-		phy_external: ethernet-phy@5 {
-			reg = <5>;
+		ethphy7: ethernet-phy@7 {
+			reg = <7>;
 			phy-mode = "rgmii-rxid";
 		};
 	};
 };
+
+&switch0 {
+	ports {
+		port@0 {
+			status = "okay";
+			label = "ethblack";
+		};
+
+		port@4 {
+			status = "okay";
+			label = "ethblue";
+		};
+	};
+};