ramips: add support for newifi d2

Previously Newifi D2 could only use PandoraBox M1's firmware.
It works fine, but LED GPIO is different.
As a result, a separated DTS file for this device should be implemented.

Hardware spec:

* CPU: MTK MT7621A
* RAM: 512MB
* ROM: 32MB SPI Flash
* WiFi: MTK MT7603+MT7612
* Button: 2 buttons (reset, wps)
* LED: 3 single-color LEDs (USB, WiFi 2.4GHz, WiFi 5GHz) &
       2 dual-color LEDs (Power, Internet)
* Ethernet: 5 ports, 4 LAN + 1 WAN

Installation method:

Same as Newifi D1, users may need to request unlock code from the device
manufacturer. Otherwise, a SPI flash programmer may be necessary to get
the firmware flashed. After the device is unlocked, press and hold reset
button before power cable plugs in. Then go to http://192.168.1.1 to
upload and flash the firmware package.

Signed-off-by: Jackson Ming Hu <huming2207@gmail.com>

1 files changed, 159 insertions, 0 deletions

diff --git a/target/linux/ramips/dts/Newifi-D2.dts b/target/linux/ramips/dts/Newifi-D2.dts
new file mode 100644
index 0000000000..e919338e4e
--- /dev/null
+++ b/target/linux/ramips/dts/Newifi-D2.dts
@@ -0,0 +1,159 @@
+/dts-v1/;
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	compatible = "d-team,newifi-d2", "mediatek,mt7621-soc";
+	model = "Newifi-D2";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x1c000000>, <0x20000000 0x4000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		power-amber {
+			label = "newifi-d2:amber:power";
+			gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
+		};
+
+		power-blue {
+			label = "newifi-d2:blue:power";
+			gpios = <&gpio0 15 GPIO_ACTIVE_LOW>;
+		};
+
+		internet-amber {
+			label = "newifi-d2:amber:internet";
+			gpios = <&gpio0 4 GPIO_ACTIVE_LOW>;
+		};
+
+		internet-blue {
+			label = "newifi-d2:blue:internet";
+			gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan2g {
+			label = "newifi-d2:blue:wlan2g";
+			gpios = <&gpio0 14 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan5g {
+			label = "newifi-d2:blue:wlan5g";
+			gpios = <&gpio0 16 GPIO_ACTIVE_LOW>;
+		};
+
+		usb {
+			label = "newifi-d2:blue:usb";
+			gpios = <&gpio0 10 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <20>;
+
+		reset {
+			label = "reset";
+			gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&gpio0 7 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+	};
+
+	gpio_export {
+		compatible = "gpio-export";
+		#size-cells = <0>;
+
+		power_usb3 {
+			gpio-export,name = "power_usb3";
+			gpio-export,output = <1>;
+			gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&spi0 {
+	status = "okay";
+
+	m25p80@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+		m25p,chunked-io = <32>;
+
+		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";
+
+	pcie0 {
+		mt76@0,0 {
+			reg = <0x0000 0 0 0 0>;
+			device_type = "pci";
+			mediatek,mtd-eeprom = <&factory 0x8000>;
+			ieee80211-freq-limit = <5000000 6000000>;
+		};
+	};
+
+	pcie1 {
+		mt76@1,0 {
+			reg = <0x0000 0 0 0 0>;
+			device_type = "pci";
+			mediatek,mtd-eeprom = <&factory 0x0000>;
+		};
+	};
+};
+
+&ethernet {
+	mtd-mac-address = <&factory 0xe000>;
+};
+
+&pinctrl {
+	state_default: pinctrl0 {
+		gpio {
+			ralink,group = "i2c", "jtag", "uart2", "uart3";
+			ralink,function = "gpio";
+		};
+	};
+};