ramips: add support for D-Link DAP-X1860 A1

The DAP-X1860 is a wall-plug AX1800 repeater.

Specifications:
- MT7621, 256 MiB RAM, 128 MiB SPI NAND
- MT7915 + MT7975 2x2 802.11ax (DBDC)
- Ethernet: 1 port 10/100/1000
- LED RSSI bargraph (2x green, 1x red/orange), status
  and RSSI LEDs are incorrectly populated red/orange
  (should be red/green according to documentation)

Installation:
- Keep reset button pressed during plug-in
- Web Recovery Updater is at 192.168.0.50
- Upload factory.bin, confirm flashing
  (seems to work best with Chromium-based browsers)

Revert to OEM firmware:
- tar -xvf DAP-X1860_RevA_Firmware_101b94.bin
- openssl enc -d -md md5 -aes-256-cbc -in FWImage.st2 \
  -out FWImage.st1 -k MB0dBx62oXJXDvt12lETWQ==
- tar -xvf FWImage.st1
- flash kernel_DAP-X1860.bin via Recovery

Signed-off-by: Sebastian Schaper <openwrt@sebastianschaper.net>

1 files changed, 197 insertions, 0 deletions

diff --git a/target/linux/ramips/dts/mt7621_dlink_dap-x1860-a1.dts b/target/linux/ramips/dts/mt7621_dlink_dap-x1860-a1.dts
new file mode 100644
index 0000000000..edc1c6544c
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_dlink_dap-x1860-a1.dts
@@ -0,0 +1,197 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	compatible = "dlink,dap-x1860-a1", "mediatek,mt7621-soc";
+	model = "D-Link DAP-X1860 A1";
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+	};
+
+	aliases {
+		label-mac-device = &gmac0;
+		led-boot = &led_power_orange;
+		led-failsafe = &led_power_red;
+		led-running = &led_power_orange;
+		led-upgrade = &led_power_red;
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		wps {
+			label = "wps";
+			gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+
+		reset {
+			label = "reset";
+			gpios = <&gpio 6 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_power_red: power_red {
+			label = "red:power";
+			gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
+		};
+
+		led_power_orange: power_orange {
+			label = "orange:power";
+			gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+
+		rssihigh {
+			label = "green:rssihigh";
+			gpios = <&gpio 22 GPIO_ACTIVE_LOW>;
+		};
+
+		rssimedium {
+			label = "green:rssimedium";
+			gpios = <&gpio 23 GPIO_ACTIVE_LOW>;
+		};
+
+		rssilow_orange {
+			label = "orange:rssilow";
+			gpios = <&gpio 26 GPIO_ACTIVE_LOW>;
+		};
+
+		rssilow_green {
+			label = "green:rssilow";
+			gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	virtual_flash {
+		compatible = "mtd-concat";
+
+		devices = <&fwconcat0 &fwconcat1>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "ubi";
+				reg = <0x0 0x0>;
+			};
+		};
+	};
+};
+
+&nand {
+	status = "okay";
+
+	mediatek,nmbm;
+
+	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 0x80000>;
+			read-only;
+		};
+
+		factory: partition@100000 {
+			label = "factory";
+			reg = <0x100000 0x80000>;
+			read-only;
+
+			compatible = "nvmem-cells";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			macaddr_factory_4: macaddr@4 {
+				reg = <0x4 0x6>;
+			};
+		};
+
+		partition@180000 {
+			label = "kernel";
+			reg = <0x180000 0x0800000>;
+		};
+
+		fwconcat0: partition@980000 {
+			label = "fwconcat0";
+			reg = <0x980000 0x2c00000>;
+		};
+
+		partition@3580000 {
+			label = "manufacture";
+			reg = <0x3580000 0x400000>;
+			read-only;
+		};
+
+		partition@3980000 {
+			label = "storage";
+			reg = <0x3980000 0x680000>;
+			read-only;
+		};
+
+		fwconcat1: partition@4000000 {
+			label = "fwconcat1";
+			reg = <0x4000000 0x3800000>;
+		};
+	};
+};
+
+&pcie {
+	status = "okay";
+};
+
+&pcie1 {
+	wifi@0,0 {
+		compatible = "mediatek,mt76";
+		reg = <0x0000 0 0 0 0>;
+		mediatek,mtd-eeprom = <&factory 0x0>;
+		mediatek,disable-radar-background;
+	};
+};
+
+&ethernet {
+	pinctrl-0 = <&mdio_pins>, <&rgmii1_pins>;
+};
+
+&gmac0 {
+	nvmem-cells = <&macaddr_factory_4>;
+	nvmem-cell-names = "mac-address";
+};
+
+&switch0 {
+	gpio-controller;
+	#gpio-cells = <2>;
+
+	ports {
+		port@0 {
+			status = "okay";
+			label = "lan";
+		};
+	};
+};
+
+&state_default {
+	gpio {
+		groups = "uart2";
+		function = "gpio";
+	};
+};