ramips: add support for DomyWifi DM202/DM203/DW22D

Specifications:
* SOC: MT7620A + MT7610E
* ROM: 16 MiB spi flash (W25Q128FVSG)
* RAM: 128 MiB DDR2 (W971GG6KB-25)
* WAN: 10/100M *1
* LAN: 10/100M *4
* USB: Type-A USB2.0 *1
* SD: MicroSD *1
* Button: Reset *1
* Antennas: 2.4 GHz *2 + 5 GHz *1
* TTL Baudrate: 57600
* U-Boot Recovery: IP: 10.10.10.123, Server: 10.10.10.3

Installation:
* Web UI Update
  1. Open http://192.168.10.1/upgrade.html in the browser.
  2. Rename firmware to a short name like firmware.bin and then upload it.
  3. Fill in the password column with the following content:
  password | mtd -x mIp2osnRG3qZGdIlQPh1 -r write /tmp/firmware.bin firmware
* TFTP + U-Boot
  1. Connect device with a TTL cable.
  2. Press "2" when booting to select "Load system code then write to Flash via TFTP".
  3. Upload firmware by tftpd64, it will boot when write instruction is executed.

Signed-off-by: Shiji Yang <[email protected]>

target/linux/ramips/dts/mt7620a_domywifi.dtsi

@@ -0,0 +1,189 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7620a.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	aliases {
+		led-boot = &led_system_amber;
+		led-failsafe = &led_system_amber;
+		led-running = &led_system_green;
+		led-upgrade = &led_system_amber;
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_system_green: system_green {
+			label = "green:system";
+			gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
+		};
+
+		led_system_amber: system_amber {
+			label = "amber:system";
+			gpios = <&gpio1 2 GPIO_ACTIVE_LOW>;
+		};
+
+		internet_green {
+			label = "green:internet";
+			gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
+		};
+
+		internet_amber {
+			label = "amber:internet";
+			gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
+		};
+
+		lan1 {
+			label = "amber:lan1";
+			gpios = <&gpio1 3 GPIO_ACTIVE_LOW>;
+		};
+
+		lan2 {
+			label = "amber:lan2";
+			gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
+		};
+
+		lan3 {
+			label = "amber:lan3";
+			gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
+		};
+
+		lan4 {
+			label = "amber:lan4";
+			gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
+		};
+
+		wan {
+			label = "amber:wan";
+			gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan2g {
+			label = "green:wlan2g";
+			gpios = <&gpio3 0 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy1tpt";
+		};
+	};
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&gpio3 {
+	status = "okay";
+};
+
+&spi0 {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <80000000>;
+		m25p,fast-read;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "bootloader";
+				reg = <0x0 0x30000>;
+				read-only;
+			};
+
+			partition@30000 {
+				label = "config";
+				reg = <0x30000 0x10000>;
+				read-only;
+			};
+
+			factory: partition@40000 {
+				label = "factory";
+				reg = <0x40000 0x10000>;
+				read-only;
+			};
+
+			partition@50000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x50000 0xfb0000>;
+			};
+		};
+	};
+};
+
+&state_default {
+	gpio {
+		groups = "uartf", "rgmii1", "wled";
+		function = "gpio";
+	};
+};
+
+&ethernet {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ephy_pins>;
+
+	mediatek,portmap = "wllll";
+
+	nvmem-cells = <&macaddr_factory_28>;
+	nvmem-cell-names = "mac-address";
+};
+
+&sdhci {
+	status = "okay";
+};
+
+&ehci {
+	status = "okay";
+};
+
+&ohci {
+	status = "okay";
+};
+
+&pcie {
+	status = "okay";
+};
+
+&pcie0 {
+	wifi@0,0 {
+		reg = <0x0000 0 0 0 0>;
+		mediatek,mtd-eeprom = <&factory 0x8000>;
+		ieee80211-freq-limit = <5000000 6000000>;
+
+		led {
+			led-sources = <0>;
+			led-active-low;
+		};
+	};
+};
+
+&wmac {
+	ralink,mtd-eeprom = <&factory 0x0>;
+};
+
+&factory {
+	compatible = "nvmem-cells";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	macaddr_factory_28: macaddr@28 {
+		reg = <0x28 0x6>;
+	};
+};

target/linux/ramips/dts/mt7620a_domywifi_dm202.dts

@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7620a_domywifi.dtsi"
+
+/ {
+	compatible = "domywifi,dm202", "ralink,mt7620a-soc";
+	model = "DomyWifi DM202";
+};

target/linux/ramips/dts/mt7620a_domywifi_dm203.dts

@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7620a_domywifi.dtsi"
+
+/ {
+	compatible = "domywifi,dm203", "ralink,mt7620a-soc";
+	model = "DomyWifi DM203";
+};

target/linux/ramips/dts/mt7620a_domywifi_dw22d.dts

@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7620a_domywifi.dtsi"
+
+/ {
+	compatible = "domywifi,dw22d", "ralink,mt7620a-soc";
+	model = "DomyWifi DW22D";
+};

target/linux/ramips/image/mt7620.mk

@@ -308,6 +308,33 @@ define Device/dlink_dwr-960
 endef
 TARGET_DEVICES += dlink_dwr-960
 
+define Device/domywifi_dm202
+  SOC := mt7620a
+  IMAGE_SIZE := 16064k
+  DEVICE_VENDOR := DomyWifi
+  DEVICE_MODEL := DM202
+  DEVICE_PACKAGES := kmod-mt76x0e kmod-sdhci-mt7620 kmod-usb2 kmod-usb-ohci
+endef
+TARGET_DEVICES += domywifi_dm202
+
+define Device/domywifi_dm203
+  SOC := mt7620a
+  IMAGE_SIZE := 16064k
+  DEVICE_VENDOR := DomyWifi
+  DEVICE_MODEL := DM203
+  DEVICE_PACKAGES := kmod-mt76x0e kmod-sdhci-mt7620 kmod-usb2 kmod-usb-ohci
+endef
+TARGET_DEVICES += domywifi_dm203
+
+define Device/domywifi_dw22d
+  SOC := mt7620a
+  IMAGE_SIZE := 16064k
+  DEVICE_VENDOR := DomyWifi
+  DEVICE_MODEL := DW22D
+  DEVICE_PACKAGES := kmod-mt76x0e kmod-sdhci-mt7620 kmod-usb2 kmod-usb-ohci
+endef
+TARGET_DEVICES += domywifi_dw22d
+
 define Device/dovado_tiny-ac
   SOC := mt7620a
   IMAGE_SIZE := 7872k

target/linux/ramips/mt7620/base-files/etc/board.d/01_leds

@@ -81,6 +81,15 @@ dlink,dwr-960)
 	ucidef_set_led_switch "lan" "lan" "green:lan" "switch0" "0x2e"
 	ucidef_set_led_switch "wan" "wan" "green:wan" "switch0" "0x01"
 	;;
+domywifi,dm202|\
+domywifi,dm203|\
+domywifi,dw22d)
+	ucidef_set_led_switch "lan1" "lan1" "amber:lan1" "switch0" "0x02"
+	ucidef_set_led_switch "lan2" "lan2" "amber:lan2" "switch0" "0x04"
+	ucidef_set_led_switch "lan3" "lan3" "amber:lan3" "switch0" "0x08"
+	ucidef_set_led_switch "lan4" "lan4" "amber:lan4" "switch0" "0x10"
+	ucidef_set_led_switch "wan" "wan" "amber:wan" "switch0" "0x01"
+		;;
 dovado,tiny-ac)
 	ucidef_set_led_netdev "wifi_led" "wifi" "orange:wifi" "wlan0"
 	;;

target/linux/ramips/mt7620/base-files/etc/board.d/02_network

@@ -76,6 +76,9 @@ ramips_setup_interfaces()
 	asus,rt-ac54u|\
 	asus,rt-n14u|\
 	bdcom,wap2100-sk|\
+	domywifi,dm202|\
+	domywifi,dm203|\
+	domywifi,dw22d|\
 	edimax,ew-7478apc|\
 	glinet,gl-mt300a|\
 	glinet,gl-mt300n|\
@@ -281,6 +284,9 @@ ramips_setup_macs()
 		wan_mac=$(macaddr_add "$(mtd_get_mac_binary factory 0x28)" 1)
 		;;
 	alfa-network,r36m-e4g|\
+	domywifi,dm202|\
+	domywifi,dm203|\
+	domywifi,dw22d|\
 	zbtlink,zbt-we1026-h-32m)
 		wan_mac=$(mtd_get_mac_binary factory 0x2e)
 		label_mac=$(mtd_get_mac_binary factory 0x4)