ramips: Add support for ZBT WG3526

The WG3526 is the follow-up to the 2626 and is mostly the same, with the
excaption that the mt7602 has been replaced with the mt7603. The internal wifi
setup has also changed slightly. Based on my tests, everything that worked on
the 2626 works on the 3526 and with roughly the same performance.

v1->v2:
* Remove some references to 2626 that I had missed in the dts.

v2->v3:
* Update patch to match new file structure.
* Removed SD driver to be consistent with other MT7621 targets.

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>

SVN-Revision: 49213

1 files changed, 127 insertions, 0 deletions

diff --git a/target/linux/ramips/dts/ZBT-WG3526.dts b/target/linux/ramips/dts/ZBT-WG3526.dts
new file mode 100644
index 0000000000..30b508c533
--- /dev/null
+++ b/target/linux/ramips/dts/ZBT-WG3526.dts
@@ -0,0 +1,127 @@
+/dts-v1/;
+
+#include "mt7621.dtsi"
+
+/ {
+	compatible = "mediatek,mt7621-eval-board", "mediatek,mt7621-soc";
+	model = "ZBT-WG3526";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x1c000000>, <0x20000000 0x4000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+	};
+
+	sdhci@10130000 {
+		status = "okay";
+	};
+
+	palmbus@1E000000 {
+		spi@b00 {
+			status = "okay";
+
+			m25p80@0 {
+				#address-cells = <1>;
+				#size-cells = <1>;
+				compatible = "jedec,spi-nor";
+				reg = <0 0>;
+				linux,modalias = "m25p80";
+				spi-max-frequency = <10000000>;
+
+				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 0xfb0000>;
+				};
+
+			};
+		};
+
+		i2c@900 {
+			compatible = "ralink,i2c-mt7621";
+			reg = <0x900 0x100>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c_pins>;
+			status = "okay";
+		};
+	};
+
+	pcie@1e140000 {
+		status = "okay";
+
+		pcie0 {
+			mt76@0,0 {
+				reg = <0x0000 0 0 0 0>;
+				device_type = "pci";
+				mediatek,mtd-eeprom = <&factory 0x0000>;
+				mediatek,5ghz = <0>;
+			};
+		};
+
+		pcie1 {
+			mt76@1,0 {
+				reg = <0x0000 0 0 0 0>;
+				device_type = "pci";
+				mediatek,mtd-eeprom = <&factory 0x8000>;
+				mediatek,2ghz = <0>;
+			};
+		};
+	};
+
+	ethernet@1e100000 {
+		mtd-mac-address = <&factory 0xe000>;
+	};
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <20>;
+
+		reset {
+			label = "reset";
+			gpios = <&gpio0 18 1>;
+			linux,code = <0x198>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		status {
+			label = "zbt-wg3526:green:status";
+			gpios = <&gpio0 24 1>;
+		};
+	};
+
+	pinctrl {
+		state_default: pinctrl0 {
+			gpio {
+				ralink,group = "wdt", "rgmii2", "wdt rst", "jtag", "mdio";
+				ralink,function = "gpio";
+			};
+		};
+	};
+};