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// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/dts-v1/;
#include "mt7621.dtsi"
#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>
/ {
compatible = "mikrotik,rb750gr3", "mediatek,mt7621-soc";
model = "MikroTik RouterBOARD 750Gr3";
aliases {
led-boot = &led_usr;
led-failsafe = &led_usr;
led-running = &led_usr;
led-upgrade = &led_usr;
};
chosen {
bootargs = "console=ttyS0,115200";
};
leds {
compatible = "gpio-leds";
pwr {
label = "rb750gr3:blue:pwr";
gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
default-state = "on";
};
led_usr: usr {
label = "rb750gr3:green:usr";
gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
};
};
keys {
compatible = "gpio-keys-polled";
poll-interval = <20>;
mode {
label = "mode";
gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
linux,code = <BTN_0>;
};
reset {
label = "reset";
gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RESTART>;
};
};
beeper {
compatible = "gpio-beeper";
gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>;
};
gpio_export {
compatible = "gpio-export";
#size-cells = <0>;
usb_power {
gpio-export,name = "usb_power";
gpio-export,output = <1>;
gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
};
};
};
&spi0 {
status = "okay";
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <20000000>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "RouterBoot";
reg = <0x0 0x40000>;
read-only;
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "bootloader1";
reg = <0x0 0xf000>;
read-only;
};
hard_config: partition@f000 {
label = "hard_config";
reg = <0xf000 0x1000>;
read-only;
};
partition@10000 {
label = "bootloader2";
reg = <0x10000 0xf000>;
read-only;
};
partition@20000 {
label = "soft_config";
reg = <0x20000 0x1000>;
};
partition@30000 {
label = "bios";
reg = <0x30000 0x1000>;
read-only;
};
};
partition@40000 {
compatible = "mikrotik,minor";
label = "firmware";
reg = <0x040000 0xfc0000>;
};
};
};
};
ðernet {
mtd-mac-address = <&hard_config 0x0010>;
mtd-mac-address-increment = <1>;
};
&pinctrl {
state_default: pinctrl0 {
gpio {
/* via gpio7 (uart3 group) the PoE status can be read */
ralink,group = "uart2", "uart3", "jtag", "wdt";
ralink,function = "gpio";
};
};
};
&sdhci {
status = "okay";
};
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