ramips: add support for I-O DATA WNPR2600G

I-O DATA WNPR2600G is a 2.4/5 GHz band 11ac router, based on MediaTek
MT7621A.

Specification:

- SoC           : MediaTek MT7621A
- RAM           : DDR3 128 MiB
- Flash         : SPI-NOR 16 MiB
- WLAN          : 2.4/5 GHz 4T4R
  - 2.4 GHz     : MediaTek MT7615
  - 5 GHz       : MediaTek MT7615
- Ethernet      : 10/100/1000 Mbps
  - Switch      : MT7530 (SoC)
- LED/keys      : 4x/3x (2x buttons, 1x slide-switch)
- UART          : through-hole on PCB
  - J1: Vcc, RX, GND, TX from SoC side
  - 57600n8

Flash instruction using factory image:

1. Boot WNPR2600G normaly
2. Access to "http://192.168.0.1/" and open firmware update page
("ファームウェア")
3. Select the OpenWrt factory image and click update ("更新") button
to perform firmware update
4. Wait ~150 seconds to complete flashing

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>

1 files changed, 165 insertions, 0 deletions

diff --git a/target/linux/ramips/dts/mt7621_iodata_wnpr2600g.dts b/target/linux/ramips/dts/mt7621_iodata_wnpr2600g.dts
new file mode 100644
index 0000000000..09bc9a3d56
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_iodata_wnpr2600g.dts
@@ -0,0 +1,165 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	compatible = "iodata,wnpr2600g", "mediatek,mt7621-soc";
+	model = "I-O DATA WNPR2600G";
+
+	aliases {
+		led-boot = &led_power;
+		led-failsafe = &led_power;
+		led-running = &led_power;
+		led-upgrade = &led_power;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,57600";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_power: power {
+			label = "wnpr2600g:green:power";
+			gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+		};
+
+		notification {
+			label = "wnpr2600g:green:notification";
+			gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
+		};
+
+		wlan2g {
+			label = "wnpr2600g:green:wlan2g";
+			gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "phy0radio";
+		};
+
+		wlan5g {
+			label = "wnpr2600g:green:wlan5g";
+			gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "phy1radio";
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		auto {
+			label = "auto";
+			gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_0>;
+			linux,input-type = <EV_SW>;
+		};
+
+		reset {
+			label = "reset";
+			gpios = <&gpio0 16 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+	};
+};
+
+&spi0 {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <40000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x000000 0x030000>;
+				read-only;
+			};
+
+			partition@30000 {
+				label = "u-boot-env";
+				reg = <0x030000 0x010000>;
+				read-only;
+			};
+
+			factory: partition@40000 {
+				label = "factory";
+				reg = <0x040000 0x010000>;
+				read-only;
+			};
+
+			partition@50000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x050000 0xda0000>;
+			};
+
+			partition@df0000 {
+				label = "manufacture";
+				reg = <0xdf0000 0x190000>;
+				read-only;
+			};
+
+			partition@f80000 {
+				label = "storage";
+				reg = <0xf80000 0x080000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&ethernet {
+	mtd-mac-address = <&factory 0x4>;
+	mediatek,portmap = "wllll";
+};
+
+&pinctrl {
+	state_default: pinctrl0 {
+		gpio {
+			ralink,group = "uart2", "uart3", "jtag", "wdt";
+			ralink,function = "gpio";
+		};
+	};
+};
+
+&pcie {
+	status = "okay";
+};
+
+&pcie0 {
+	wifi@0,0 {
+		compatible = "mediatek,mt76";
+		reg = <0x0000 0 0 0 0>;
+		mediatek,mtd-eeprom = <&factory 0x0>;
+		ieee80211-freq-limit = <2400000 2500000>;
+	};
+};
+
+&pcie1 {
+	wifi@0,0 {
+		compatible = "mediatek,mt76";
+		reg = <0x0000 0 0 0 0>;
+		mediatek,mtd-eeprom = <&factory 0x8000>;
+		ieee80211-freq-limit = <5000000 6000000>;
+	};
+};
+
+&xhci {
+	status = "disabled";
+};