Support for tp-link ec220-g5

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I found the reason why the gpio 2 (wlan2g) didn't work.
It's because of rfkill in keys section:

       keys {
               compatible = "gpio-keys";

               reset {
                       label = "reset";
                       gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
                       linux,code = <KEY_RESTART>;
               };

               rfkill {
                       label = "rfkill";
                       gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
                       linux,code = <KEY_RFKILL>;
               };
       };

I haven't noticed that before. It needs to clear out.

Here's working dts file:

# cat ./target/linux/ramips/dts/mt7620a_tplink_archer-c5-v4.dts
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT

#include "mt7620a.dtsi"

#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>

/ {
	compatible = "tplink,archer-c5-v4", "ralink,mt7620a-soc";
	model = "TP-Link Archer C5 v4";

	aliases {
		led-boot = &led_power;
		led-failsafe = &led_power;
		led-running = &led_power;
		led-upgrade = &led_power;
		label-mac-device = &ethernet;
	};

	chosen {
		bootargs = "console=ttyS0,115200";
	};

	leds {
		compatible = "gpio-leds";

		led_power: power {
			label = "green:power";
			gpios = <&gpio2 2 GPIO_ACTIVE_LOW>;
		};

		wan_orange {
			label = "orange:wan";
			gpios = <&gpio0 7 GPIO_ACTIVE_LOW>;
		};

		wlan2g {
			label = "green:wlan2g";
			gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
			linux,default-trigger = "phy1tpt";
		};

		wlan5g {
			label = "green:wlan5g";
			gpios = <&gpio0 9 GPIO_ACTIVE_LOW>;
			linux,default-trigger = "phy0tpt";
		};

		lan {
			label = "green:lan";
			gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
		};
	};

	keys {
		compatible = "gpio-keys";

		reset {
			label = "reset";
			gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_RESTART>;
		};
	};

	rtl8367s {
		compatible = "realtek,rtl8367c";
		cpu_port = <7>;
		realtek,extif2 = <1 0 1 1 1 1 1 1 2>;
		mii-bus = <&mdio0>;
		phy-id = <29>;
	};
};

&gpio2 {
	status = "okay";
};

&spi0 {
	status = "okay";

	flash@0 {
		compatible = "jedec,spi-nor";
		reg = <0>;
		spi-max-frequency = <60000000>;
		m25p,fast-read;

		partitions {
			compatible = "fixed-partitions";
			#address-cells = <1>;
			#size-cells = <1>;

			partition@0 {
				label = "u-boot";
				reg = <0x0 0x20000>;
				read-only;
			};

			partition@20000 {
				compatible = "tplink,firmware";
				label = "firmware";
				reg = <0x20000 0x7a0000>;
			};

			partition@7c0000 {
				label = "config";
				reg = <0x7c0000 0x10000>;
				read-only;
			};

			rom: partition@7d0000 {
				label = "rom";
				reg = <0x7d0000 0x10000>;
				read-only;
			};

			partition@7e0000 {
				label = "romfile";
				reg = <0x7e0000 0x10000>;
				read-only;
			};

			radio: partition@7f0000 {
				label = "radio";
				reg = <0x7f0000 0x10000>;
				read-only;
			};
		};
	};
};

&state_default {
	gpio {
		groups = "i2c", "uartf", "ephy", "rgmii2";
		function = "gpio";
	};
};

&ethernet {
	pinctrl-names = "default";
	mtd-mac-address = <&rom 0xf100>;
	pinctrl-0 = <&rgmii1_pins &mdio_pins>;

	port@5 {
		status = "okay";
		mediatek,fixed-link = <1000 1 1 1>;
		phy-mode = "rgmii";
	};

	mdio0: mdio-bus {
		status = "okay";
		reset-gpios = <&gpio2 20 GPIO_ACTIVE_LOW>;
		reset-delay-us = <10000>;
	};
};

&ehci {
	status = "okay";
};

&ohci {
	status = "okay";
};

&wmac {
	ralink,mtd-eeprom = <&radio 0x0>;
	mtd-mac-address = <&rom 0xf100>;
};

&pcie {
	status = "okay";
};

&pcie0 {
	wifi@0,0 {
		reg = <0x0000 0 0 0 0>;
		mediatek,mtd-eeprom = <&radio 0x8000>;
		ieee80211-freq-limit = <5000000 6000000>;
		mtd-mac-address = <&rom 0xf100>;
		mtd-mac-address-increment = <2>;
	};
};

So I compiled 22.03.6 as in this post

Then I flashed the firmware, but ethernet and wlan5g won't work, it's happened because modules kmod-mt76x2 kmod-switch-rtl8367b haven't checked for some reasons during selecting target profile, don't know why.

I checked it out by hands in menuconfig. Now all works fine.