ramips: mt7621: harmonize naming scheme for Mikrotik

So far, image/device/board names for Mikrotik devices in mt7621 have
been used quite inconsistently.

This patch harmonizes the naming scheme by applying the same style
as used lately in ath79, i.e. using "RouterBOARD" as separate word
in the model name (instead of RB prefix for the number) and deriving
the board/device name from that (= make lower case and replace spaces
by hyphens).

This style has already been used for most the model/DEVICE_MODEL
variables in mt7621, so this is essentially just adjusting the remaining
variables to that.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 178 insertions, 0 deletions

diff --git a/target/linux/ramips/dts/mt7621_mikrotik_routerboard-750gr3.dts b/target/linux/ramips/dts/mt7621_mikrotik_routerboard-750gr3.dts
new file mode 100644
index 0000000000..3f37155f24
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_mikrotik_routerboard-750gr3.dts
@@ -0,0 +1,178 @@
+// 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,routerboard-750gr3", "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 = "routerboard-750gr3:blue:pwr";
+			gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+		};
+
+		led_usr: usr {
+			label = "routerboard-750gr3:green:usr";
+			gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		mode {
+			label = "mode";
+			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_0>;
+		};
+
+		reset {
+			label = "reset";
+			gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	beeper {
+		compatible = "gpio-beeper";
+		gpios = <&gpio 15 GPIO_ACTIVE_HIGH>;
+	};
+
+	gpio_export {
+		compatible = "gpio-export";
+		#size-cells = <0>;
+
+		usb_power {
+			gpio-export,name = "usb_power";
+			gpio-export,output = <1>;
+			gpios = <&gpio 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>;
+			};
+		};
+	};
+};
+
+&gmac0 {
+	mtd-mac-address = <&hard_config 0x0010>;
+	mtd-mac-address-increment = <1>;
+};
+
+&switch0 {
+	ports {
+		port@0 {
+			status = "okay";
+			label = "wan";
+			mtd-mac-address = <&hard_config 0x0010>;
+			mtd-mac-address-increment = <2>;
+		};
+
+		port@1 {
+			status = "okay";
+			label = "lan2";
+		};
+
+		port@2 {
+			status = "okay";
+			label = "lan3";
+		};
+
+		port@3 {
+			status = "okay";
+			label = "lan4";
+		};
+
+		port@4 {
+			status = "okay";
+			label = "lan5";
+		};
+	};
+};
+
+&state_default {
+	gpio {
+		/* via gpio7 (uart3 group) the PoE status can be read */
+		groups = "uart2", "uart3", "jtag", "wdt";
+		function = "gpio";
+	};
+};
+
+&sdhci {
+	status = "okay";
+};