openwrt/target/linux/ramips/dts/MIR3G.dts

/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";

	aliases {
		led-boot = &led_status_yellow;
		led-failsafe = &led_status_red;
		led-running = &led_status_blue;
		led-upgrade = &led_status_yellow;
	};

	memory@0 {
		device_type = "memory";
		reg = <0x0 0x10000000>;
	};

	chosen {
		bootargs = "console=ttyS0,115200n8";
	};

	leds {
		compatible = "gpio-leds";

		led_status_red: status_red {
			label = "mir3g:red:status";
			gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
		};

		led_status_blue: status_blue {
			label = "mir3g:blue:status";
			gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
		};

		led_status_yellow: 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>;
		};
	};

	button {
		compatible = "gpio-keys-polled";
		poll-interval = <20>;

		reset {
			label = "reset";
			gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_RESTART>;
		};
	};

	reg_usb_vbus: regulator {
		compatible = "regulator-fixed";
		regulator-name = "usb_vbus";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		gpio = <&gpio0 12 GPIO_ACTIVE_HIGH>;
		enable-active-high;
	};
};

&xhci {
	vbus-supply = <&reg_usb_vbus>;
};

&nand {
	status = "okay";

	partitions {
		compatible = "fixed-partitions";
		#address-cells = <1>;
		#size-cells = <1>;

		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@0,0 {
		compatible = "pci14c3,7603";
		reg = <0x0000 0 0 0 0>;
		mediatek,mtd-eeprom = <&factory 0x0000>;
		ieee80211-freq-limit = <2400000 2500000>;
	};
};

&pcie1 {
	wifi@0,0 {
		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";
		};
	};
};