ramips: Add support for the 7Links PX-4885 wireless router.

The 7Links PX-4885 is a small battery-powered wireless router.
It is based on a RT5350F WiSoC and features one ethernet port and one
USB port. It is a Hame MPR-A1 clone, except it has different GPIOs,
a different battery and more RAM (32 MB).
This patch adds a profile for this board, the corresponding device tree
file and the adequate base-files changes (incl. sysupgrade).

Signed-off-by: Hugo Grostabussiat <bonstra@bonstra.fr.eu.org>

SVN-Revision: 40554

target/linux/ramips/dts/PX4885.dts

@@ -0,0 +1,90 @@
+/dts-v1/;
+
+/include/ "rt5350.dtsi"
+
+/ {
+	compatible = "PX4885", "ralink,rt5350-soc";
+	model = "7Links PX-4885";
+
+	palmbus@10000000 {
+		spi@b00 {
+			status = "okay";
+			m25p80@0 {
+				#address-cells = <1>;
+				#size-cells = <1>;
+				compatible = "mx25l3205d";
+				reg = <0 0>;
+				linux,modalias = "m25p80", "mx25l3205d";
+				spi-max-frequency = <10000000>;
+
+				partition@0 {
+					label = "u-boot";
+					reg = <0x0 0x20000>;
+					read-only;
+				};
+
+				partition@20000 {
+					label = "devdata";
+					reg = <0x20000 0x20000>;
+					read-only;
+				};
+
+				factory: partition@40000 {
+					label = "devconf";
+					reg = <0x40000 0x10000>;
+					read-only;
+				};
+
+				partition@50000 {
+					label = "firmware";
+					reg = <0x50000 0x3b0000>;
+				};
+			};
+		};
+	};
+
+	pinctrl {
+		state_default: pinctrl0 {
+			gpio {
+				ralink,group = "i2c", "jtag", "uartf";
+				ralink,function = "gpio";
+			};
+		};
+	};
+
+	ethernet@10100000 {
+		mtd-mac-address = <&factory 0x2e>;
+	};
+
+	esw@10110000 {
+		ralink,portmap = <0x3f>;
+	};
+
+	wmac@10180000 {
+		ralink,mtd-eeprom = <&factory 0>;
+	};
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <20>;
+		reset {
+			label = "reset";
+			gpios = <&gpio0 10 1>;
+			linux,code = <0x198>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+		orange {
+			label = "7links:orange:wifi";
+			gpios = <&gpio0 18 1>;
+		};
+		blue {
+			label = "7links:blue:storage";
+			gpios = <&gpio0 19 1>;
+		};
+	};
+};