mediatek: add Huasifei WH3000 Pro NAND support

This commit adds support for Huasifei WH3000 Pro NAND version.
There is an eMMC already supported in OpenWrt. The only difference is NAND chip.
This commit adds common .dtsi and separate .dts
for eMMC and nand versions.

**Huasifei WH3000 Pro NAND**
Portable Wi-Fi 6 travel router based on MediaTek MT7981A SoC. MT7981B+MT7976CN+RTL8221B Dual Core 1.3GHZ with 5G modems module and PWM Fan.

**Specifications**
SoC: Filogic 820 MT7981A (1.3GHz)
RAM: DDR4 1GB
Flash: 256mb Winbond SPI NAND
WiFi: 2.4GHz and 5GHz with 3 antennas
Ethernet:
1x WAN (10/100/1000M)
1x LAN (10/100/1000/2500M)
USB: 1x USB 3.0 port
Two buttons: reset and mode (BTN_0)
LEDS: blue, red, blue+red=pink
UART: 3.3V, TX, RX, GND / 115200 8N1
M.2 (WWAN) slot

**Installation via U-Boot rescue**
1. Set static IP 192.168.1.2 on your computer and default route as 192.168.1.1
2. Connect to the WAN port and hold the reset button while booting the device.
3. Wait for the LED to blink 5 times, and release the reset button.
4. Open U-boot web page on your browser at http://192.168.1.1
5. Select the OpenWRT sysupgrade image, upload it, and start the upgrade.
6. Wait for the router to flash the new firmware.
7. Wait for the router to reboot itself.

**Installation via sysupgrade**
Just flash sysupgrade file via [LuCI upgrade page](http://192.168.1.1/cgi-bin/luci/admin/system/flash) without saving the settings.

**Installation via SSH**
Upload the file to the router `/tmp` directory, `ssh [email protected]` and issue a command:
```
sysupgrade -n /tmp/openwrt-mediatek-filogic-huasifei_wh3000-pro-nand-squashfs-sysupgrade.bin
```

Signed-off-by: Fil Dunsky <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/22694
Signed-off-by: Hauke Mehrtens <[email protected]>

target/linux/mediatek/dts/mt7981b-huasifei-wh3000-pro-emmc.dts

@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+/dts-v1/;
+
+#include "mt7981b-huasifei-wh3000-pro.dtsi"
+
+/ {
+	model = "Huasifei WH3000 Pro eMMC";
+	compatible = "huasifei,wh3000-pro-emmc", "mediatek,mt7981";
+};
+
+&chosen {
+	bootargs-append = " root=PARTLABEL=rootfs rootwait";
+};
+
+&mmc0 {
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	max-frequency = <52000000>;
+	non-removable;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default", "state_uhs";
+	pinctrl-0 = <&mmc0_pins_default>;
+	pinctrl-1 = <&mmc0_pins_uhs>;
+	vmmc-supply = <&reg_3p3v>;
+	status = "okay";
+
+	card@0 {
+		compatible = "mmc-card";
+		reg = <0>;
+
+		block {
+			compatible = "block-device";
+
+			partitions {
+				block-partition-factory {
+					partname = "factory";
+
+					nvmem-layout {
+						compatible = "fixed-layout";
+						#address-cells = <1>;
+						#size-cells = <1>;
+
+						eeprom_factory_0: eeprom@0 {
+							reg = <0x0 0x1000>;
+						};
+
+						macaddr_factory_4: macaddr@4 {
+							compatible = "mac-base";
+							reg = <0x4 0x6>;
+							#nvmem-cell-cells = <1>;
+						};
+					};
+				};
+			};
+		};
+	};
+};
+
+&pio {
+	mmc0_pins_default: mmc0-pins-default {
+		mux {
+			function = "flash";
+			groups = "emmc_45";
+		};
+	};
+
+	mmc0_pins_uhs: mmc0-pins-uhs {
+		mux {
+			function = "flash";
+			groups = "emmc_45";
+		};
+	};
+};

target/linux/mediatek/dts/mt7981b-huasifei-wh3000-pro-nand.dts

@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+/dts-v1/;
+
+#include "mt7981b-huasifei-wh3000-pro.dtsi"
+
+/ {
+	model = "Huasifei WH3000 Pro NAND";
+	compatible = "huasifei,wh3000-pro-nand", "mediatek,mt7981";
+};
+
+&spi0 {
+	status = "okay";
+
+	spi_nand: flash@0 {
+		compatible = "spi-nand";
+		reg = <0>;
+
+		spi-max-frequency = <52000000>;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+
+		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 0x200000>;
+				read-only;
+
+				nvmem-layout {
+					compatible = "fixed-layout";
+					#address-cells = <1>;
+					#size-cells = <1>;
+
+					eeprom_factory_0: eeprom@0 {
+						reg = <0x0 0x1000>;
+					};
+
+					macaddr_factory_4: macaddr@4 {
+						compatible = "mac-base";
+						reg = <0x4 0x6>;
+						#nvmem-cell-cells = <1>;
+					};
+				};
+			};
+
+			partition@380000 {
+				label = "FIP";
+				reg = <0x380000 0x200000>;
+				read-only;
+			};
+
+			partition@580000 {
+				label = "ubi";
+				reg = <0x580000 0xe280000>;
+			};
+		};
+	};
+};

target/linux/mediatek/dts/mt7981b-huasifei-wh3000-pro.dts → target/linux/mediatek/dts/mt7981b-huasifei-wh3000-pro.dtsi

@@ -9,9 +9,6 @@
 #include "mt7981b.dtsi"
 
 / {
-	model = "Huasifei WH3000 Pro";
-	compatible = "huasifei,wh3000-pro", "mediatek,mt7981";
-
 	aliases {
 		serial0 = &uart0;
 		led-boot = &led_sys_red;
@@ -20,9 +17,8 @@
 		led-upgrade = &led_sys_blue;
 	};
 
-	chosen {
+	chosen: chosen {
 		stdout-path = "serial0:115200n8";
-		bootargs-append = " root=PARTLABEL=rootfs rootwait";
 	};
 
 	gpio-export {
@@ -101,7 +97,7 @@
 		compatible = "ethernet-phy-ieee802.3-c45";
 		reg = <1>;
 		reset-assert-us = <100000>;
-		reset-deassert-us = <100000>;
+		reset-deassert-us = <221000>;
 		reset-gpios = <&pio 39 GPIO_ACTIVE_LOW>;
 		interrupts = <38 IRQ_TYPE_LEVEL_LOW>;
 		interrupt-parent = <&pio>;
@@ -116,66 +112,7 @@
 	status = "okay";
 };
 
-&mmc0 {
-	bus-width = <8>;
-	cap-mmc-highspeed;
-	max-frequency = <52000000>;
-	non-removable;
-	#address-cells = <1>;
-	#size-cells = <0>;
-	pinctrl-names = "default", "state_uhs";
-	pinctrl-0 = <&mmc0_pins_default>;
-	pinctrl-1 = <&mmc0_pins_uhs>;
-	vmmc-supply = <&reg_3p3v>;
-	status = "okay";
-
-	card@0 {
-		compatible = "mmc-card";
-		reg = <0>;
-
-		block {
-			compatible = "block-device";
-
-			partitions {
-				block-partition-factory {
-					partname = "factory";
-
-					nvmem-layout {
-						compatible = "fixed-layout";
-						#address-cells = <1>;
-						#size-cells = <1>;
-
-						eeprom_factory_0: eeprom@0 {
-							reg = <0x0 0x1000>;
-						};
-
-						macaddr_factory_4: macaddr@4 {
-							compatible = "mac-base";
-							reg = <0x4 0x6>;
-							#nvmem-cell-cells = <1>;
-						};
-					};
-				};
-			};
-		};
-	};
-};
-
 &pio {
-	mmc0_pins_default: mmc0-pins-default {
-		mux {
-			function = "flash";
-			groups = "emmc_45";
-		};
-	};
-
-	mmc0_pins_uhs: mmc0-pins-uhs {
-		mux {
-			function = "flash";
-			groups = "emmc_45";
-		};
-	};
-
 	pwm1_pins: pwm1-pins {
 		mux {
 			function = "pwm";

target/linux/mediatek/filogic/base-files/etc/board.d/02_network

@@ -125,7 +125,8 @@ mediatek_setup_interfaces()
 	bananapi,bpi-r3-mini|\
 	edgecore,eap111|\
 	huasifei,wh3000|\
-	huasifei,wh3000-pro)
+	huasifei,wh3000-pro-emmc|\
+	huasifei,wh3000-pro-nand)
 		ucidef_set_interfaces_lan_wan eth0 eth1
 		;;
 	bazis,ax3000wm|\

target/linux/mediatek/filogic/base-files/etc/board.d/03_gpio_switches

@@ -5,7 +5,8 @@ board_config_update
 board=$(board_name)
 
 case "$board" in
-huasifei,wh3000-pro)
+huasifei,wh3000-pro-emmc|\
+huasifei,wh3000-pro-nand)
 	ucidef_add_gpio_switch "modem_power" "Modem power" "modem_power" "0"
 	;;
 teltonika,rutc50)

target/linux/mediatek/filogic/base-files/lib/upgrade/platform.sh

@@ -139,7 +139,7 @@ platform_do_upgrade() {
 	glinet,gl-x3000|\
 	glinet,gl-xe3000|\
 	huasifei,wh3000|\
-	huasifei,wh3000-pro|\
+	huasifei,wh3000-pro-emmc|\
 	smartrg,sdg-8612|\
 	smartrg,sdg-8614|\
 	smartrg,sdg-8622|\
@@ -164,7 +164,8 @@ platform_do_upgrade() {
 		;;
 	buffalo,wsr-6000ax8|\
 	cudy,wr3000h-v1|\
-	cudy,wr3000p-v1)
+	cudy,wr3000p-v1|\
+	huasifei,wh3000-pro-nand)
 		CI_UBIPART="ubi"
 		nand_do_upgrade "$1"
 		;;
@@ -369,7 +370,7 @@ platform_copy_config() {
 	glinet,gl-x3000|\
 	glinet,gl-xe3000|\
 	huasifei,wh3000|\
-	huasifei,wh3000-pro|\
+	huasifei,wh3000-pro-emmc|\
 	jdcloud,re-cp-03|\
 	nradio,c8-668gl|\
 	smartrg,sdg-8612|\

target/linux/mediatek/image/filogic.mk

@@ -1710,18 +1710,38 @@ define Device/huasifei_wh3000
 endef
 TARGET_DEVICES += huasifei_wh3000
 
-define Device/huasifei_wh3000-pro
+define Device/huasifei_wh3000-pro-emmc
   DEVICE_VENDOR := Huasifei
   DEVICE_MODEL := WH3000 Pro
-  DEVICE_DTS := mt7981b-huasifei-wh3000-pro
+  DEVICE_VARIANT := eMMC
+  DEVICE_DTS := mt7981b-huasifei-wh3000-pro-emmc
   DEVICE_DTS_DIR := ../dts
-  DEVICE_PACKAGES := kmod-mt7915e kmod-mt7981-firmware mt7981-wo-firmware kmod-hwmon-pwmfan kmod-usb3 f2fsck mkf2fs
+  DEVICE_PACKAGES := kmod-mt7915e kmod-mt7981-firmware mt7981-wo-firmware \
+	kmod-hwmon-pwmfan kmod-usb3 f2fsck mkf2fs
+  SUPPORTED_DEVICES += huasifei,wh3000-pro
   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 | pad-to 64k
   IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
 endef
-TARGET_DEVICES += huasifei_wh3000-pro
+TARGET_DEVICES += huasifei_wh3000-pro-emmc
+
+define Device/huasifei_wh3000-pro-nand
+  DEVICE_VENDOR := Huasifei
+  DEVICE_MODEL := WH3000 Pro
+  DEVICE_VARIANT := NAND
+  DEVICE_DTS := mt7981b-huasifei-wh3000-pro-nand
+  DEVICE_DTS_DIR := ../dts
+  UBINIZE_OPTS := -E 5
+  BLOCKSIZE := 128k
+  PAGESIZE := 2048
+  IMAGE_SIZE := 229376k
+  KERNEL_IN_UBI := 1
+  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
+  DEVICE_PACKAGES := kmod-mt7915e kmod-mt7981-firmware mt7981-wo-firmware \
+	kmod-usb3 kmod-hwmon-pwmfan
+endef
+TARGET_DEVICES += huasifei_wh3000-pro-nand
 
 define Device/imou_hx21
   DEVICE_VENDOR := Imou