Initial commit

target/linux/ramips/dts/MIR3G.dts

@@ -0,0 +1,195 @@
+/dts-v1/;
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	compatible = "xiaomi,mir3g", "mediatek,mt7621-soc";
+	model = "Xiaomi Mi Router 3G";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x10000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8";
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		status_red {
+			label = "mir3g:red:status";
+			gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
+		};
+
+		status_blue {
+			label = "mir3g:blue:status";
+			gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
+		};
+
+		status_yellow {
+			label = "mir3g:yellow:status";
+			gpios = <&gpio0 10 GPIO_ACTIVE_LOW>;
+		};
+
+		wan_amber {
+			label = "mir3g:amber:wan";
+			gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+		};
+
+		lan1_amber {
+			label = "mir3g:amber:lan1";
+			gpios = <&gpio0 14 GPIO_ACTIVE_LOW>;
+		};
+
+		lan2_amber {
+			label = "mir3g:amber:lan2";
+			gpios = <&gpio0 16 GPIO_ACTIVE_LOW>;
+		};
+
+	};
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <20>;
+
+		reset {
+			label = "reset";
+			gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	gpio_export {
+		compatible = "gpio-export";
+		#size-cells = <0>;
+
+		usbpower {
+			gpio-export,name = "usbpower";
+			gpio-export,output = <1>;
+			gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&nand {
+	status = "okay";
+
+	partition@0 {
+		label = "Bootloader";
+		reg = <0x0 0x80000>;
+		read-only;
+	};
+
+	partition@80000 {
+		label = "Config";
+		reg = <0x80000 0x40000>;
+	};
+
+	partition@c0000 {
+		label = "Bdata";
+		reg = <0xc0000 0x40000>;
+		read-only;
+	};
+
+	factory: partition@100000 {
+		label = "Factory";
+		reg = <0x100000 0x40000>;
+		read-only;
+	};
+
+	partition@140000 {
+		label = "crash";
+		reg = <0x140000 0x40000>;
+	};
+
+	partition@180000 {
+		label = "crash_syslog";
+		reg = <0x180000 0x40000>;
+	};
+
+	partition@1c0000 {
+		label = "reserved0";
+		reg = <0x1c0000 0x40000>;
+		read-only;
+	};
+
+	/* uboot expects to find kernels at 0x200000 & 0x600000
+	 * referred to as system 1 & system 2 respectively.
+	 * a kernel is considered suitable for handing control over
+	 * if its linux magic number exists & uImage CRC are correct.
+	 * If either of those conditions fail, a matching sys'n'_fail flag
+	 * is set in uboot env & a restart performed in the hope that the
+	 * alternate kernel is okay.
+	 * if neither kernel checksums ok and both are marked failed, system 2
+	 * is booted anyway.
+	 *
+	 * Note uboot's tftp flash install writes the transferred
+	 * image to both kernel partitions.
+	 */
+
+	partition@200000 {
+		label = "kernel_stock";
+		reg = <0x200000 0x400000>;
+	};
+
+	partition@600000 {
+		label = "kernel";
+		reg = <0x600000 0x400000>;
+	};
+
+	/* ubi partition is the result of squashing
+	 * next consecutive stock partitions:
+	 * - rootfs0 (rootfs partition for stock kernel0),
+	 * - rootfs1 (rootfs partition for stock failsafe kernel1),
+	 * - overlay (used as ubi overlay in stock fw)
+	 * resulting 117,5MiB space for packages.
+	 */
+
+	partition@a00000 {
+		label = "ubi";
+		reg = <0xa00000 0x7580000>;
+	};
+};
+
+&pcie {
+	status = "okay";
+
+	pcie0 {
+		wifi@14c3,7603 {
+			compatible = "pci14c3,7603";
+			reg = <0x0000 0 0 0 0>;
+			mediatek,mtd-eeprom = <&factory 0x0000>;
+			ieee80211-freq-limit = <2400000 2500000>;
+		};
+	};
+
+	pcie1 {
+		wifi@14c3,7662 {
+			compatible = "pci14c3,7662";
+			reg = <0x0000 0 0 0 0>;
+			mediatek,mtd-eeprom = <&factory 0x8000>;
+			ieee80211-freq-limit = <5000000 6000000>;
+		};
+	};
+};
+
+&ethernet {
+	mtd-mac-address = <&factory 0xe000>;
+	mediatek,portmap = "lwlll";
+};
+
+&pinctrl {
+	state_default: pinctrl0 {
+		gpio {
+			ralink,group = "jtag", "uart2", "uart3", "wdt";
+			ralink,function = "gpio";
+		};
+	};
+};