ramips: add support for Netgear EX6120

Specifications:
* SoC: MT7620A
* CPU: 580 MHz
* RAM: 64 MB DDR
* Flash: 8MB NOR SPI flash
* WiFi: MT7612E (5GHz) and builtin MT7620A (2.4GHz)
* LAN: 1x100M

The device is identical to the EX6130 except
for the mains socket and the hardware ID.

Installation:
The -factory images can be flashed from the
device's web interface or via nmrpflash.

Notes:
MAC addresses were set up based on the EX6130 setup.

This is based on prior work of Adam Serbinski and Mathias Buchwald.

Tested by Mathias Buchwald.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 113 insertions, 0 deletions

diff --git a/target/linux/ramips/dts/mt7620a_netgear_ex3x00_ex61xx.dtsi b/target/linux/ramips/dts/mt7620a_netgear_ex3x00_ex61xx.dtsi
new file mode 100644
index 0000000000..1f255c76b2
--- /dev/null
+++ b/target/linux/ramips/dts/mt7620a_netgear_ex3x00_ex61xx.dtsi
@@ -0,0 +1,113 @@
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "mt7620a.dtsi"
+
+/ {
+	chosen {
+		bootargs = "console=ttyS0,57600";
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&gpio2 26 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+	};
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio2 {
+	status = "okay";
+};
+
+&spi0 {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <50000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				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 0x790000>;
+			};
+
+			partition@7e0000 {
+				label = "board_data";
+				reg = <0x7e0000 0x10000>;
+				read-only;
+			};
+
+			partition@7f0000 {
+				label = "nvram";
+				reg = <0x7f0000 0x10000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&pcie {
+	status = "okay";
+};
+
+&pcie0 {
+	mt76@0,0 {
+		reg = <0x0000 0 0 0 0>;
+		mediatek,mtd-eeprom = <&factory 0x8000>;
+		ieee80211-freq-limit = <5000000 6000000>;
+	};
+};
+
+&ethernet {
+	mtd-mac-address = <&factory 0x28>;
+};
+
+&wmac {
+	ralink,mtd-eeprom = <&factory 0x0>;
+};
+
+&state_default {
+	default {
+		groups = "i2c", "rgmii2", "spi refclk";
+		function = "gpio";
+	};
+};