ramips: add support for Netgear R6120

This patch adds support for the Netgear R6120, aka Netgear AC1200.

Specification:
- SoC: MediaTek MT7628 (580 MHz)
- Flash: 16 MiB
- RAM: 64 MiB
- Wireless: 2.4Ghz(builtin) and 5Ghz (MT7612E)
- LAN speed: 10/100
- LAN ports: 4
- WAN speed: 10/100
- WAN ports: 1
- Serial baud rate of Bootloader and factory firmware: 57600

To flash use nmrpflash with the provided factory.img.
Flashing via webinterface will not work, for now.

Signed-off-by: Ludwig Thomeczek <ledesrc@wxorx.net>

1 files changed, 145 insertions, 0 deletions

diff --git a/target/linux/ramips/dts/R6120.dts b/target/linux/ramips/dts/R6120.dts
new file mode 100644
index 0000000000..eac9e17688
--- /dev/null
+++ b/target/linux/ramips/dts/R6120.dts
@@ -0,0 +1,145 @@
+/dts-v1/;
+
+#include "mt7628an.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	compatible = "netgear,r6120", "mediatek,mt7628an-soc";
+	model = "Netgear AC1200 R6120";
+
+	aliases {
+		led-status = &led_power;
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x4000000>;
+	};
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		poll-interval = <20>;
+
+		reset {
+			label = "reset";
+			gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		lan {
+			label = "r6120:green:lan";
+			gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
+		};
+
+		led_power: power {
+			label = "r6120:green:power";
+			gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan {
+			label = "r6120:green:wlan2g";
+			gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan_orange {
+			label = "r6120:orange:wlan2g";
+			gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan5 {
+			label = "r6120:green:wlan5g";
+			gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan5_orange {
+			label = "r6120:orange:wlan5g";
+			gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&pinctrl {
+	state_default: pinctrl0 {
+		gpio {
+			ralink,group = "p0led_an", "p1led_an", "p2led_an",
+				       "p3led_an", "p4led_an", "wdt", "wled_an";
+			ralink,function = "gpio";
+		};
+	};
+};
+
+&spi0 {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+		m25p,chunked-io = <32>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x0 0x40000>;
+				read-only;
+			};
+
+			factory: partition@40000 {
+				label = "factory";
+				reg = <0x40000 0x20000>;
+				read-only;
+			};
+
+			nvram: partition@60000 {
+				label = "nvram";
+				reg = <0x60000 0x30000>;
+				read-only;
+			};
+
+			partition@90000 {
+				label = "firmware";
+				reg = <0x90000 0xf60000>;
+			};
+
+			partition@ff0000 {
+				label = "reserved";
+				reg = <0xff0000 0x10000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&wmac {
+	status = "okay";
+	mtd-mac-address = <&nvram 0x100b0>;
+	mediatek,mtd-eeprom = <&factory 0x20000>;
+};
+
+&ethernet {
+	mtd-mac-address = <&nvram 0x100b0>;
+};
+
+&pcie {
+	status = "okay";
+};
+
+&pcie0 {
+	wifi@0,0 {
+		reg = <0x0000 0 0 0 0>;
+		mediatek,mtd-eeprom = <&factory 0x28000>;
+		ieee80211-freq-limit = <5000000 6000000>;
+		mtd-mac-address = <&nvram 0x100b0>;
+		mtd-mac-address-increment = <(2)>;
+	};
+};