mediatek: filogic: add support for Cudy AP3000 Wall v1

This commit adds support for the Cudy AP3000 Wall v1.

SoC: MediaTek MT7981b
RAM: 256MiB
Flash: spi-nand spi0.0: 128 MiB
Wifi: MediaTek MT7981 2x2 DBDC 802.11ax 2T2R (2.4 / 5)
LEDs: 1 LED in two colors (red & white)
Buttons: 1 reset, 1 led on/off
Ethernet: 5x 1GbE
Power: PoE powered (standalone)

The stock firmware is a customized variant of OpenWrt, which implements
a signature check that only allows flashing official firmware. Cudy offers
intermediate OpenWrt firmware images on their website [1][2] which do not
implement the signature check. After flashing the intermediate image the
upstream official OpenWrt image can be installed.

The stock firmware can be recovered via TFTP using the U-Boot based boot
loader[3]. Set up a TFTP server on your computer with IP 192.168.1.88/24
serving the stock firmware from Cudy's website renamed to "recovery.bin".
Press and hold the reset button while powering on the device, wait for the
TFTP server to send the recovery.bin file, then release the reset button.
The router will take a couple of minutes to reboot and set up the stock
firmware.

[1] https://www.cudy.com/blogs/faq/openwrt-software-download
[2] https://drive.google.com/drive/folders/1BKVarlwlNxf7uJUtRhuMGUqeCa5KpMnj
[3] https://www.cudy.com/en-us/blogs/faq/how-to-recovery-the-cudy-router-from-openwrt-firmware-to-cudy-official-firmware

Signed-off-by: Derek Denk <derek.denk@live.com>
Link: https://github.com/openwrt/openwrt/pull/21266
(cherry picked from commit afad4c71f8d558ca86b997781ca0236f321cf1e9)
Link: https://github.com/openwrt/openwrt/pull/21890
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

4 files changed, 297 insertions, 0 deletions

diff --git a/target/linux/mediatek/dts/mt7981b-cudy-ap3000wall-v1.dts b/target/linux/mediatek/dts/mt7981b-cudy-ap3000wall-v1.dts
new file mode 100644
index 0000000000..adcbfdd9c5
--- /dev/null
+++ b/target/linux/mediatek/dts/mt7981b-cudy-ap3000wall-v1.dts
@@ -0,0 +1,276 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+
+/dts-v1/;
+
+#include <dt-bindings/leds/common.h>
+
+#include "mt7981b.dtsi"
+
+/ {
+	model = "Cudy AP3000 Wall v1";
+	compatible = "cudy,ap3000wall-v1", "mediatek,mt7981";
+
+	aliases {
+		label-mac-device = &gmac0;
+		led-boot = &led_status_white;
+		led-failsafe = &led_status_red;
+		led-running = &led_status_white;
+		led-upgrade = &led_status_red;
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&pio 1 GPIO_ACTIVE_LOW>;
+		};
+
+		lights_toggle {
+			label = "lights_toggle";
+			linux,code = <KEY_LIGHTS_TOGGLE>;
+			gpios = <&pio 35 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		led_status_red: led@0 {
+			label = "red:status";
+			function = LED_FUNCTION_POWER;
+			color = <LED_COLOR_ID_RED>;
+			gpios = <&pio 4 GPIO_ACTIVE_LOW>;
+		};
+
+		led_status_white: led@1 {
+			label = "white:status";
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_WHITE>;
+			gpios = <&pio 10 GPIO_ACTIVE_LOW>;
+		};
+
+	};
+
+	gpio_export {
+		compatible = "gpio-export";
+
+		poe_passthrough {
+			gpio-export,name = "poe-passthrough";
+			gpio-export,output = <0>;
+			gpios = <&pio 12 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	watchdog-hw {
+		compatible = "linux,wdt-gpio";
+		gpios = <&pio 6 GPIO_ACTIVE_HIGH>;
+		hw_algo = "level";
+		hw_margin_ms = <10000>;
+		always-running;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&watchdog {
+	status = "okay";
+};
+
+&eth {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mdio_pins>;
+	status = "okay";
+
+	gmac0: mac@0 {
+		compatible = "mediatek,eth-mac";
+		reg = <0>;
+		phy-mode = "2500base-x";
+		nvmem-cell-names = "mac-address";
+		nvmem-cells = <&macaddr_bdinfo_de00 0>;
+		fixed-link {
+			speed = <2500>;
+			full-duplex;
+			pause;
+		};
+	};
+};
+
+&mdio_bus {
+	switch: switch@1f {
+		compatible = "mediatek,mt7531";
+		reg = <31>;
+		reset-gpios = <&pio 39 GPIO_ACTIVE_HIGH>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		interrupt-parent = <&pio>;
+		interrupts = <38 IRQ_TYPE_LEVEL_HIGH>;
+	};
+};
+
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_flash_pins>;
+	status = "okay";
+
+	spi_nand: flash@0 {
+		compatible = "spi-nand";
+		reg = <0>;
+		spi-max-frequency = <52000000>;
+
+		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-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+		mediatek,nmbm;
+		mediatek,bmt-max-ratio = <1>;
+		mediatek,bmt-max-reserved-blocks = <64>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "BL2";
+				reg = <0x00000 0x0100000>;
+				read-only;
+			};
+
+			partition@100000 {
+				label = "u-boot-env";
+				reg = <0x0100000 0x0080000>;
+				read-only;
+			};
+
+			factory: partition@180000 {
+				label = "Factory";
+				reg = <0x180000 0x0200000>;
+				read-only;
+
+				nvmem-layout {
+					compatible = "fixed-layout";
+					#address-cells = <1>;
+					#size-cells = <1>;
+
+					eeprom_factory_0: eeprom@0 {
+						reg = <0x0 0x1000>;
+					};
+				};
+			};
+
+			partition@380000 {
+				label = "bdinfo";
+				reg = <0x380000 0x0040000>;
+				read-only;
+
+				nvmem-layout {
+					compatible = "fixed-layout";
+					#address-cells = <1>;
+					#size-cells = <1>;
+
+					macaddr_bdinfo_de00: macaddr@de00 {
+						compatible = "mac-base";
+						reg = <0xde00 0x6>;
+						#nvmem-cell-cells = <1>;
+					};
+				};
+			};
+
+			partition@3c0000 {
+				label = "FIP";
+				reg = <0x3c0000 0x0200000>;
+				read-only;
+			};
+
+			partition@5c0000 {
+				label = "ubi";
+				reg = <0x5c0000 0x4000000>;
+				compatible = "linux,ubi";
+			};
+		};
+	};
+};
+
+&pio {
+	spi0_flash_pins: spi0-pins {
+		mux {
+			function = "spi";
+			groups = "spi0", "spi0_wp_hold";
+		};
+		conf-pu {
+			pins = "SPI0_CS", "SPI0_HOLD", "SPI0_WP";
+			drive-strength = <MTK_DRIVE_8mA>;
+			bias-pull-up = <MTK_PUPD_SET_R1R0_11>;
+		};
+		conf-pd {
+			pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO";
+			drive-strength = <MTK_DRIVE_8mA>;
+			bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
+		};
+	};
+};
+
+&switch {
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			label = "lan1";
+		};
+
+		port@1 {
+			reg = <1>;
+			label = "lan2";
+		};
+
+		port@2 {
+			reg = <2>;
+			label = "lan3";
+		};
+
+		port@3 {
+			reg = <3>;
+			label = "lan4";
+		};
+
+		port@4 {
+			reg = <4>;
+			label = "lan5";
+		};
+
+		port@6 {
+			reg = <6>;
+			label = "cpu";
+			ethernet = <&gmac0>;
+			phy-mode = "2500base-x";
+
+			fixed-link {
+				speed = <2500>;
+				full-duplex;
+				pause;
+			};
+		};
+	};
+};
+
+&wifi {
+	status = "okay";
+	nvmem-cells = <&eeprom_factory_0>;
+	nvmem-cell-names = "eeprom";
+};
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 b57ac5e41f..fd7c159aab 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
@@ -101,6 +101,9 @@ mediatek_setup_interfaces()
 	comfast,cf-e393ax)
 		ucidef_set_interfaces_lan_wan "lan1" eth1
 		;;
+	cudy,ap3000wall-v1)
+		ucidef_set_interface_lan "lan1 lan2 lan3 lan4 lan5"
+		;;
 	cudy,ap3000outdoor-v1|\
 	cudy,ap3000-v1|\
 	cudy,re3000-v1|\
diff --git a/target/linux/mediatek/filogic/base-files/etc/hotplug.d/ieee80211/11_fix_wifi_mac b/target/linux/mediatek/filogic/base-files/etc/hotplug.d/ieee80211/11_fix_wifi_mac
index 08c11309af..907dd00d36 100644
--- a/target/linux/mediatek/filogic/base-files/etc/hotplug.d/ieee80211/11_fix_wifi_mac
+++ b/target/linux/mediatek/filogic/base-files/etc/hotplug.d/ieee80211/11_fix_wifi_mac
@@ -89,6 +89,7 @@ case "$board" in
 		[ "$PHYNBR" = "1" ] && macaddr_add $addr 1 > /sys${DEVPATH}/macaddress
 		;;
 	cudy,ap3000outdoor-v1|\
+	cudy,ap3000wall-v1|\
 	cudy,ap3000-v1|\
 	cudy,m3000-v1|\
 	cudy,re3000-v1|\
diff --git a/target/linux/mediatek/image/filogic.mk b/target/linux/mediatek/image/filogic.mk
index 563ffed40b..fe9563e5ea 100644
--- a/target/linux/mediatek/image/filogic.mk
+++ b/target/linux/mediatek/image/filogic.mk
@@ -1041,6 +1041,23 @@ define Device/cudy_ap3000outdoor-v1
 endef
 TARGET_DEVICES += cudy_ap3000outdoor-v1
 
+define Device/cudy_ap3000wall-v1
+  DEVICE_VENDOR := Cudy
+  DEVICE_MODEL := AP3000 Wall
+  DEVICE_VARIANT := v1
+  DEVICE_DTS := mt7981b-cudy-ap3000wall-v1
+  DEVICE_DTS_DIR := ../dts
+  SUPPORTED_DEVICES += R68
+  UBINIZE_OPTS := -E 5
+  BLOCKSIZE := 128k
+  PAGESIZE := 2048
+  IMAGE_SIZE := 65536k
+  KERNEL_IN_UBI := 1
+  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
+  DEVICE_PACKAGES := kmod-mt7915e kmod-mt7981-firmware mt7981-wo-firmware
+endef
+TARGET_DEVICES += cudy_ap3000wall-v1
+
 define Device/cudy_ap3000-v1
   DEVICE_VENDOR := Cudy
   DEVICE_MODEL := AP3000