mediatek: add GL.iNET GL-MT3600BE support

Hardware specification:
  SoC: MediaTek MT7987A 4x A53
  Flash: 512 MB SPI-NAND
  RAM: 512MB DDR4
  Ethernet: 2x 2.5GbE (built-in + RTL8221B)
  WiFi: MediaTek MT7990
  USB: 1x USB 3.0 port
  Button: Mode, Reset
  Power: Type-C PD 5/9/12V

Flash instructions:
  1. Power on the device with 'reset' key pressed for 5s
  2. Set static IP on your PC:
     IP 192.168.1.10/24, GW 192.168.1.1
  3. Visit http://192.168.1.1 and upload sysupgrade.bin

Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
Link: https://github.com/openwrt/openwrt/pull/22476
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

3 files changed, 314 insertions, 0 deletions

diff --git a/target/linux/mediatek/dts/mt7987a-glinet-gl-mt3600be.dts b/target/linux/mediatek/dts/mt7987a-glinet-gl-mt3600be.dts
new file mode 100644
index 0000000000..784e134fff
--- /dev/null
+++ b/target/linux/mediatek/dts/mt7987a-glinet-gl-mt3600be.dts
@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (C) 2026 Tianling Shen <cnsztl@immortalwrt.org>
+ */
+
+/dts-v1/;
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+#include "mt7987a.dtsi"
+
+/ {
+	model = "GL.iNet GL-MT3600BE";
+	compatible = "glinet,gl-mt3600be", "mediatek,mt7987a", "mediatek,mt7987";
+
+	aliases {
+		serial0 = &uart0;
+		label-mac-device = &gmac0;
+		led-boot = &led_status_white;
+		led-failsafe = &led_status_blue;
+		led-running = &led_status_blue;
+		led-upgrade = &led_status_blue;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n1 earlycon=uart8250,mmio32,0x11000000 pci=pcie_bus_perf";
+		stdout-path = "serial0:115200n8";
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		led_status_blue: led-0 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_STATUS;
+			gpios = <&pio 48 GPIO_ACTIVE_LOW>;
+		};
+
+		led_status_white: led-1 {
+			color = <LED_COLOR_ID_WHITE>;
+			function = LED_FUNCTION_STATUS;
+			gpios = <&pio 49 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		button-mode {
+			label = "mode";
+			linux,code = <BTN_0>;
+			linux,input-type = <EV_SW>;
+			gpios = <&pio 3 GPIO_ACTIVE_HIGH>;
+			debounce-interval = <10>;
+		};
+
+		button-reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&pio 4 GPIO_ACTIVE_LOW>;
+			debounce-interval = <10>;
+		};
+	};
+
+	fan_3p3v: regulator-fan-3p3v {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&pio 6 GPIO_ACTIVE_HIGH>;
+		regulator-name = "fan";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	usb_vbus: regulator-usb-vbus {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&pio 14 GPIO_ACTIVE_HIGH>;
+		regulator-name = "usb_vbus";
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+};
+
+&fan {
+	fan-supply = <&fan_3p3v>;
+	interrupt-parent = <&pio>;
+	interrupts = <5 IRQ_TYPE_EDGE_RISING>;
+	pwms = <&pwm 1 50000 0>;
+	status = "okay";
+};
+
+&gmac0 {
+	nvmem-cells = <&macaddr_factory_4000 0>;
+	nvmem-cell-names = "mac-address";
+	phy-handle = <&phy7>;
+	phy-mode = "2500base-x";
+	status = "okay";
+};
+
+&gmac1 {
+	nvmem-cells = <&macaddr_factory_4000 1>;
+	nvmem-cell-names = "mac-address";
+	phy-handle = <&phy15>;
+	phy-mode = "internal";
+	status = "okay";
+};
+
+&mdio {
+	reset-delay-us = <10000>;
+	reset-gpios = <&pio 0 GPIO_ACTIVE_LOW>;
+
+	phy7: phy@7 {
+		compatible = "ethernet-phy-ieee802.3-c45";
+		reg = <7>;
+		interrupt-parent = <&pio>;
+		interrupts = <41 IRQ_TYPE_LEVEL_LOW>;
+		reset-assert-us = <100000>;
+		reset-deassert-us = <100000>;
+		reset-gpios = <&pio 42 GPIO_ACTIVE_LOW>;
+	};
+
+	phy15: phy@f {
+		compatible = "ethernet-phy-ieee802.3-c45";
+		reg = <15>;
+		pinctrl-names = "i2p5gbe-led";
+		pinctrl-0 = <&i2p5gbe_led0_pins>;
+	};
+};
+
+&pcie0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie0_pins>;
+	reset-gpios = <&pio 38 GPIO_ACTIVE_HIGH>;
+	status = "okay";
+
+	pcie@0,0 {
+		reg = <0x0000 0 0 0 0>;
+
+		mt7990@0,0 {
+			compatible = "mediatek,mt76";
+			reg = <0x0000 0 0 0 0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			device_type = "pci";
+
+			ieee80211-freq-limit = <2400000 2500000>,
+					       <5170000 5835000>;
+
+			nvmem-cells = <&eeprom_factory_0>;
+			nvmem-cell-names = "eeprom";
+
+			band@0 {
+				reg = <0>;
+				nvmem-cells = <&macaddr_factory_4006 0>;
+				nvmem-cell-names = "mac-address";
+			};
+
+			band@1 {
+				reg = <1>;
+				nvmem-cells = <&macaddr_factory_4006 1>;
+				nvmem-cell-names = "mac-address";
+			};
+		};
+	};
+};
+
+&pio {
+	pwm1_pins: pwm1-pins {
+		mux {
+			function = "pwm";
+			groups = "pwm1_0";
+		};
+	};
+};
+
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm1_pins>;
+	status = "okay";
+};
+
+&spi2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi2_flash_pins>;
+	status = "okay";
+
+	flash@0 {
+		compatible = "spi-nand";
+		reg = <0>;
+
+		spi-cal-enable;
+		spi-cal-mode = "read-data";
+		spi-cal-datalen = <7>;
+		spi-cal-data = /bits/ 8 <0x53 0x50 0x49 0x4e 0x41 0x4e 0x44>;
+		spi-cal-addrlen = <5>;
+		spi-cal-addr = /bits/ 32 <0x0 0x0 0x0 0x0 0x0>;
+
+		spi-max-frequency = <52000000>;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+
+		mediatek,nmbm;
+		mediatek,bmt-max-ratio = <1>;
+		mediatek,bmt-max-reserved-blocks = <256>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "BL2";
+				reg = <0x0 0x100000>;
+				read-only;
+			};
+
+			partition@100000 {
+				label = "u-boot-env";
+				reg = <0x100000 0x80000>;
+			};
+
+			partition@180000 {
+				label = "Factory";
+				reg = <0x180000 0x400000>;
+				read-only;
+
+				nvmem-layout {
+					compatible = "fixed-layout";
+					#address-cells = <1>;
+					#size-cells = <1>;
+
+					eeprom_factory_0: eeprom@0 {
+						reg = <0x0 0x1e00>;
+					};
+
+					macaddr_factory_4000: macaddr@4000 {
+						compatible = "mac-base";
+						reg = <0x4000 0x6>;
+						#nvmem-cell-cells = <1>;
+					};
+
+					macaddr_factory_4006: macaddr@4006 {
+						compatible = "mac-base";
+						reg = <0x4006 0x6>;
+						#nvmem-cell-cells = <1>;
+					};
+				};
+			};
+
+			partition@580000 {
+				label = "FIP";
+				reg = <0x580000 0x200000>;
+				read-only;
+			};
+
+			partition@780000 {
+				label = "log";
+				reg = <0x780000 0x40000>;
+				read-only;
+			};
+
+			partition@7c0000 {
+				label = "CFG";
+				reg = <0x7c0000 0x40000>;
+				read-only;
+			};
+
+			partition@800000 {
+				label = "ubi";
+				reg = <0x800000 0x1d800000>;
+				compatible = "linux,ubi";
+			};
+		};
+	};
+};
+
+&ssusb {
+	vbus-supply = <&usb_vbus>;
+	status = "okay";
+};
+
+&tphyu3port0 {
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins>;
+	status = "okay";
+};
diff --git a/target/linux/mediatek/filogic/base-files/etc/board.d/02_network b/target/linux/mediatek/filogic/base-files/etc/board.d/02_network
index 2d5bc24164..9fa03a8edc 100644
--- a/target/linux/mediatek/filogic/base-files/etc/board.d/02_network
+++ b/target/linux/mediatek/filogic/base-files/etc/board.d/02_network
@@ -142,6 +142,7 @@ mediatek_setup_interfaces()
 	glinet,gl-mt2500|\
 	glinet,gl-mt2500-airoha|\
 	glinet,gl-mt3000|\
+	glinet,gl-mt3600be|\
 	glinet,gl-x3000|\
 	glinet,gl-xe3000|\
 	openembed,som7981|\
diff --git a/target/linux/mediatek/image/filogic.mk b/target/linux/mediatek/image/filogic.mk
index 77c8055d60..c75301c111 100644
--- a/target/linux/mediatek/image/filogic.mk
+++ b/target/linux/mediatek/image/filogic.mk
@@ -1654,6 +1654,27 @@ define Device/glinet_gl-mt3000
 endef
 TARGET_DEVICES += glinet_gl-mt3000
 
+define Device/glinet_gl-mt3600be
+  DEVICE_VENDOR := GL.iNet
+  DEVICE_MODEL := GL-MT3600BE
+  DEVICE_DTS := mt7987a-glinet-gl-mt3600be
+  DEVICE_DTS_DIR := ../dts
+  DEVICE_PACKAGES := mt7987-2p5g-phy-firmware kmod-mt7990-firmware \
+	kmod-hwmon-pwmfan kmod-usb3
+  KERNEL = kernel-bin | lzma | \
+	fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb
+  KERNEL_INITRAMFS = kernel-bin | lzma | \
+	fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb with-initrd
+  KERNEL_IN_UBI := 1
+  KERNEL_LOADADDR := 0x40000000
+  UBINIZE_OPTS := -E 5
+  BLOCKSIZE := 128k
+  PAGESIZE := 2048
+  IMAGE_SIZE := 483328k
+  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
+endef
+TARGET_DEVICES += glinet_gl-mt3600be
+
 define Device/glinet_gl-mt6000
   DEVICE_VENDOR := GL.iNet
   DEVICE_MODEL := GL-MT6000