ramips: add support for STORYLiNK SAP-G3200U3

STORYLiNK SAP-G3200U3 is an AC1200 router based on MT7621AT+MT7602EN+MT7612EN.
It has 128MB DDR3, 8MB NOR FLASH, 5-port Gbps switch and 1x USB 3.0.

The following patch adds support for this device.

Tested and working:
* ethernet
* both WiFi radios
* USB 3.0
* buttons
* ethernet switch and USB diag LEDs
* UART
* GPIOs

Tested and not working:
* LEDs for WiFi radios (connected with WiFi chips, not supported in mt76?)
* failsafe mode (known problem, needs workaround like other MTK based devices)

More information in Wiki: http://wiki.openwrt.org/toh/storylink/sap-g3200u3

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>

SVN-Revision: 46454

1 files changed, 122 insertions, 0 deletions

diff --git a/target/linux/ramips/dts/SAP-G3200U3.dts b/target/linux/ramips/dts/SAP-G3200U3.dts
new file mode 100644
index 0000000000..06c2f23952
--- /dev/null
+++ b/target/linux/ramips/dts/SAP-G3200U3.dts
@@ -0,0 +1,122 @@
+/dts-v1/;
+
+/include/ "mt7621.dtsi"
+
+/ {
+	compatible = "mediatek,mt7621-eval-board", "mediatek,mt7621-soc";
+	model = "STORYLiNK SAP-G3200U3";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x8000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,57600";
+	};
+
+	palmbus@1E000000 {
+		spi@b00 {
+			status = "okay";
+
+			m25p80@0 {
+				#address-cells = <1>;
+				#size-cells = <1>;
+				compatible = "mx25l6405d";
+				reg = <0 0>;
+				linux,modalias = "m25p80", "en25q64";
+				spi-max-frequency = <10000000>;
+
+				partition@0 {
+					label = "u-boot";
+					reg = <0x0 0x30000>;
+					read-only;
+				};
+
+				partition@30000 {
+					label = "u-boot-env";
+					reg = <0x30000 0x1000>;
+					read-only;
+				};
+
+				partition@31000 {
+					label = "config";
+					reg = <0x31000 0xf000>;
+					read-only;
+				};
+
+				factory: partition@40000 {
+					label = "factory";
+					reg = <0x40000 0x10000>;
+					read-only;
+				};
+
+				partition@50000 {
+					label = "firmware";
+					reg = <0x50000 0x7b0000>;
+				};
+			};
+		};
+	};
+
+	pcie@1e140000 {
+		status = "okay";
+
+		pcie0 {
+			mt76@0,0 {
+				reg = <0x0000 0 0 0 0>;
+				device_type = "pci";
+				mediatek,mtd-eeprom = <&factory 0x8000>;
+				mediatek,2ghz = <0>;
+			};
+		};
+
+		pcie1 {
+			mt76@1,0 {
+				reg = <0x0000 0 0 0 0>;
+				device_type = "pci";
+				mediatek,mtd-eeprom = <&factory 0x0000>;
+				mediatek,5ghz = <0>;
+			};
+		};
+	};
+
+	ethernet@1e100000 {
+		mtd-mac-address = <&factory 0xe006>;
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		usb {
+			label = "storylink:green:usb";
+			gpios = <&gpio0 13 1>;
+		};
+	};
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <20>;
+		reset {
+			label = "reset";
+			gpios = <&gpio0 16 1>;
+			linux,code = <0x198>;
+		};
+		rfkill {
+			label = "rfkill";
+			gpios = <&gpio0 14 1>;
+			linux,code = <0xf7>;
+		};
+	};
+
+	pinctrl {
+		state_default: pinctrl0 {
+			gpio {
+				ralink,group = "uart3", "jtag";
+				ralink,function = "gpio";
+			};
+		};
+	};
+};