mediatek: Add support for D-Link EAGLE PRO AI M32

Specification:
 - MT7622BV SoC with 2.4GHz wifi
 - MT7975AN + MT7915AN for 5GHz
 - MT7531BE Switch
 - 512MB RAM
 - 128 MB flash
 - 3 LEDs (red, orange, white)
 - 2 buttons (WPS and Reset)

MAC addresses:
 - WAN MAC is stored in partition "Odm" at offset 0x83
 - LAN (as printed on the device) is WAN MAC + 1
 - WLAN MAC (2.4 GHz) is WAN MAC + 2
 - WLAN MAC (5GHz) is WAN MAC + 3

Disassembly: Remove 4 screws in the bottom and 2 screws in the top (after removing the blue cover on the top), then the board can be pulled out.

The pins for the serial console are already labeled on the board (VCC, TX, RX, GND). Serial settings: 3.3V, 115200,8n1

Flashing via Recovery Web Interface:
- Set your IP address to 192.168.0.10, subnetmask 255.255.255.25
- Press the reset button while powering on the deivce
- Keep the reset button pressed until the status LED blinks fast
- Open a Chromium based and goto http://192.168.0.1
- Download openwrt-mediatek-mt7622-dlink_eagle-pro-ai-m32-a1-squashfs-recovery.bin

Flashing via uBoot:
- Open the case, connect to the UART console
- Set your IP address to 10.10.10.3, subnet mask 255.255.255.0. Connect to one of the LAN interfaces of the router
- Run a tftp server which provides openwrt-mediatek-mt7622-dlink_eagle-pro-ai-m32-initramfs-kernel.bin. You can rename the file to iverson_uImage (no extension), then you don't have to enter the whole file name in uboot later.
- Power on the device and select "1. System Load Linux to SDRAM via TFTP." in the boot menu
- Enter image file, tftp server IP and device IP (if they differ from the default).
- TFTP download to RAM will start. After a few seconds OpenWrt initramfs should start
- The initramfs is accessible via 192.168.1.1, change your IP address accordingly (or use multiple IP addresses on your interface)
- Create a backup of the Kernel1 partition, this file is required if a revert to stock should be done later
- Perform a sysupgrade using openwrt-mediatek-mt7622-dlink_eagle-pro-ai-m32-squashfs-sysupgrade.bin
- Reboot the device. OpenWrt should start from flash now

Revert back to stock using the Recovery Web Interface:
- Set your IP address to 192.168.0.10, subnetmask 255.255.255.25
- Press the reset button while powering on the deivce
- Keep the reset button pressed until the status LED blinks fast
- Open a Chromium based and goto http://192.168.0.1
- Flash a decrypted firmware image from D-Link. Decrypting an firmware image is described below.

Decrypting a D-Link firmware image:
- Download https://github.com/RolandoMagico/firmware-utils/blob/M32/src/m32-firmware-util.c
- Compile a binary from the downloaded file, e.g. gcc m32-firmware-util.c -lcrypto -o m32-firmware-util
- Run ./m32-firmware-util M32 --DecryptFactoryImage <OriginalFirmware> <OutputFile>
- Example for firmware 1.03.01_HOTFIX: ./m32-firmware-util M32 --DecryptFactoryImage M32-REVA_1.03.01_HOTFIX.enc.bin M32-REVA_1.03.01_HOTFIX.decrypted.bin

Revert back to stock using uBoot:
- Open the case, connect to the UART console
- Set your IP address to 10.10.10.3, subnet mask 255.255.255.0. Connect to one of the LAN interfaces of the router
- Run a tftp server which provides the previously created backup of the Kernel1 partition. You can rename the file to iverson_uImage (no extension), then you don't have to enter the whole file name in uboot later.
- Power on the device and select "2. System Load Linux Kernel then write to Flash via TFTP." in the boot menu
- Enter image file, tftp server IP and device IP (if they differ from the default).
- TFTP download to FLASH will start. After a few seconds the stock firmware should start again

There is also an image openwrt-mediatek-mt7622-dlink_eagle-pro-ai-m32-a1-squashfs-tftp.bin which can directly be flashed via U-Boot and TFTP. It can be used if no backup of the Kernel1 partition is reuqired.

Flahsing via OEM web interface is currently not possible, the OEM images are encrypted and require a specific memory layout which is not compatible to the partition layout of OpenWrt.

Signed-off-by: Roland Reinl <[email protected]>

target/linux/mediatek/dts/mt7622-dlink-eagle-pro-ai-m32-a1.dts

@@ -0,0 +1,399 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+/dts-v1/;
+#include "mt7622.dtsi"
+#include "mt6380.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "D-Link EAGLE PRO AI M32 A1";
+	compatible = "dlink,eagle-pro-ai-m32-a1", "mediatek,mt7622";
+
+	aliases {
+		led-boot = &status_orange;
+		led-failsafe = &status_red;
+		led-running = &status_white;
+		led-upgrade = &status_red;
+		serial0 = &uart0;
+		label-mac-device = &gmac0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+		bootargs = "earlycon=uart8250,mmio32,0x11002000 console=ttyS0,115200n8 swiotlb=512";
+	};
+
+	cpus {
+		cpu@0 {
+			proc-supply = <&mt6380_vcpu_reg>;
+			sram-supply = <&mt6380_vm_reg>;
+		};
+
+		cpu@1 {
+			proc-supply = <&mt6380_vcpu_reg>;
+			sram-supply = <&mt6380_vm_reg>;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		reset {
+			gpios = <&pio 0 GPIO_ACTIVE_LOW>;
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+		};
+
+		wps {
+			gpios = <&pio 102 GPIO_ACTIVE_LOW>;
+			label = "wps";
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		status_white: status_white {
+			label = "white:status";
+			gpios = <&pio 85 GPIO_ACTIVE_LOW>;
+		};
+
+		status_orange: status_orange {
+			label = "orange:status";
+			gpios = <&pio 20 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+
+		status_red: status_red {
+			label = "red:status";
+			gpios = <&pio 17 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	memory {
+		reg = <0 0x40000000 0 0x40000000>;
+	};
+};
+
+&bch {
+	status = "okay";
+};
+
+&btif {
+	status = "okay";
+};
+
+&eth {
+	pinctrl-names = "default";
+	pinctrl-0 = <&eth_pins>;
+	status = "okay";
+
+	gmac0: mac@0 {
+		compatible = "mediatek,eth-mac";
+		nvmem-cells = <&macaddr_odm_83>;
+		nvmem-cell-names = "mac-address";
+		phy-mode = "2500base-x";
+		reg = <0>;
+
+		fixed-link {
+			full-duplex;
+			pause;
+			speed = <2500>;
+		};
+	};
+
+	mdio-bus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		switch@0 {
+			compatible = "mediatek,mt7531";
+			reg = <0>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&pio>;
+			interrupts = <53 IRQ_TYPE_LEVEL_HIGH>;
+			reset-gpios = <&pio 54 0>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@2 {
+					reg = <2>;
+					label = "lan2";
+				};
+
+				port@3 {
+					reg = <3>;
+					label = "lan1";
+				};
+
+				wan: port@4 {
+					reg = <4>;
+					label = "wan";
+				};
+
+				port@6 {
+					reg = <6>;
+					ethernet = <&gmac0>;
+					phy-mode = "2500base-x";
+
+					fixed-link {
+						speed = <2500>;
+						full-duplex;
+						pause;
+					};
+				};
+			};
+		};
+	};
+};
+
+&pcie0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie0_pins>;
+	status = "okay";
+};
+
+&pcie1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie1_pins>;
+	status = "okay";
+};
+
+&pio {
+    epa_elna_pins: epa-elna-pins {
+		mux {
+			function = "antsel";
+			groups = "antsel0", "antsel1", "antsel2", "antsel3",
+				  "antsel4", "antsel5", "antsel6", "antsel7",
+      				  "antsel8", "antsel9", "antsel12", "antsel13",
+    				  "antsel14", "antsel15", "antsel16", "antsel17";
+		};
+	};
+
+	eth_pins: eth-pins {
+		mux {
+			function = "eth";
+			groups = "mdc_mdio", "rgmii_via_gmac2";
+		};
+	};
+
+	pcie0_pins: pcie0-pins {
+		mux {
+			function = "pcie";
+			groups = "pcie0_pad_perst",
+				 "pcie0_1_waken",
+				 "pcie0_1_clkreq";
+		};
+	};
+
+	pcie1_pins: pcie1-pins {
+		mux {
+			function = "pcie";
+			groups = "pcie1_pad_perst",
+				 "pcie1_0_waken",
+				 "pcie1_0_clkreq";
+		};
+	};
+
+	pmic_bus_pins: pmic-bus-pins {
+		mux {
+			function = "pmic";
+			groups = "pmic_bus";
+		};
+	};
+
+	/* Serial NAND is shared pin with SPI-NOR */
+	serial_nand_pins: serial-nand-pins {
+		mux {
+			function = "flash";
+			groups = "snfi";
+		};
+	};
+
+	uart0_pins: uart0-pins {
+		mux {
+			function = "uart";
+			groups = "uart0_0_tx_rx";
+		};
+	};
+
+	watchdog_pins: watchdog-pins {
+		mux {
+			function = "watchdog";
+			groups = "watchdog";
+		};
+	};
+};
+
+&pwrap {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pmic_bus_pins>;
+	status = "okay";
+};
+
+&rtc {
+	status = "disabled";
+};
+
+&sata {
+	status = "disabled";
+};
+
+&sata_phy {
+	status = "disabled";
+};
+
+&slot0 {
+	wmac1: mt7915@0,0 {
+		reg = <0x0000 0 0 0 0>;
+		ieee80211-freq-limit = <5000000 6000000>;
+		mediatek,mtd-eeprom = <&factory 0x05000>;
+	};
+};
+
+&snfi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&serial_nand_pins>;
+	status = "okay";
+
+	snand: flash@0 {
+		compatible = "spi-nand";
+		mediatek,bmt-table-size = <0x1000>;
+		mediatek,bmt-v2;
+		nand-ecc-engine = <&snfi>;
+		reg = <0>;
+		spi-rx-bus-width = <4>;
+		spi-tx-bus-width = <4>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "Preloader";
+				reg = <0x00000000 0x00080000>;
+				read-only;
+			};
+
+			partition@80000 {
+				label = "ATF";
+				reg = <0x00080000 0x00040000>;
+				read-only;
+			};
+
+			partition@C0000 {
+				label = "Bootloader";
+				reg = <0x000C0000 0x00080000>;
+				read-only;
+			};
+
+			partition@140000 {
+				label = "BootConfig";
+				reg = <0x00140000 0x00040000>;
+				read-only;
+			};
+
+			odm: partition@180000 {
+				compatible = "nvmem-cells";
+				label = "Odm";
+				reg = <0x00180000 0x00040000>;
+				read-only;
+
+				macaddr_odm_83: macaddr@83 {
+					reg = <0x83 0x6>;
+				};
+			};
+
+			config1: partition@1C0000 {
+				compatible = "nvmem-cells";
+				label = "Config1";
+				reg = <0x001C0000 0x00080000>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				read-only;
+			};
+
+			partition@240000 {
+				label = "Config2";
+				reg = <0x00240000 0x00080000>;
+				read-only;
+			};
+
+			partition@2C0000 {
+				label = "Kernel1";
+				reg = <0x002C0000 0x02D00000>;
+
+				compatible = "fixed-partitions";
+				#address-cells = <1>;
+				#size-cells = <1>;
+				partition@0 {
+					label = "kernel";
+					reg = <0x00000000 0x00800000>;
+				};
+
+				partition@800000 {
+					label = "ubi";
+					reg = <0x00800000 0x02500000>;
+				};
+			};
+
+			partition@2FC0000 {
+				label = "Kernel2";
+				reg = <0x02FC0000 0x02D00000>;
+				read-only;
+			};
+
+			factory: partition@5CC0000 {
+				label = "Factory";
+				reg = <0x05CC0000 0x00100000>;
+				read-only;
+			};
+
+			partition@5DC0000 {
+				label = "Mydlink";
+				reg = <0x05DC0000 0x00200000>;
+				read-only;
+			};
+
+			partition@5FC0000 {
+				label = "Storage";
+				reg = <0x05FC0000 0x00300000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&ssusb {
+	status = "disabled";
+};
+
+&u3phy {
+	status = "disabled";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins>;
+	status = "okay";
+};
+
+&watchdog {
+	pinctrl-names = "default";
+	pinctrl-0 = <&watchdog_pins>;
+	status = "okay";
+};
+
+&wmac {
+	pinctrl-names = "default";
+	pinctrl-0 = <&epa_elna_pins>;
+	mediatek,mtd-eeprom = <&factory 0x0000>;
+	status = "okay";
+};
+

target/linux/mediatek/image/mt7622.mk

@@ -37,6 +37,25 @@ define Build/bl31-uboot
 	cat $(STAGING_DIR_IMAGE)/mt7622_$1-u-boot.fip >> $@
 endef
 
+# Append header to a D-Link M32 Kernel 1 partition
+define Build/m32-recovery-header-kernel1
+	echo -en "DLK6E6010001\x00\x00\xCF\x33" > "[email protected]"
+	echo -en "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x8D\x57\x30\x0B" >> "[email protected]"
+# Byte 0-3: Erase Start 0x002C0000
+# Byte 4-7: Erase Length 0x02D00000
+# Byte 8-11: Data offset: 0x002C0000
+# Byte 12-15: Data Length: 0x02D00000
+	echo -en "\x00\x00\x2C\x00\x00\x00\xD0\x02\x00\x00\x2C\x00\x00\x00\xD0\x02" >> "[email protected]"
+# Only zeros
+	echo -en "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" >> "[email protected]"
+# Note: The last 2 bytes of the following line are the checksum of the header
+# If any data in the header will be changed, the checksum must be re-calculated
+	echo -en "\x42\x48\x02\x00\x00\x00\x08\x00\x00\x00\x00\x00\x60\x6E\x68\x61" >> "[email protected]"
+	cat "[email protected]" "$@" > "[email protected]"
+	mv "[email protected]" "$@"
+	rm "[email protected]"
+endef
+
 define Build/mt7622-gpt
 	cp $@ [email protected] 2>/dev/null || true
 	ptgen -g -o [email protected] -a 1 -l 1024 \
@@ -147,6 +166,25 @@ define Device/buffalo_wsr-3200ax4s
 endef
 TARGET_DEVICES += buffalo_wsr-3200ax4s
 
+define Device/dlink_eagle-pro-ai-m32-a1
+  IMAGE_SIZE := 46080k
+  DEVICE_VENDOR := D-Link
+  DEVICE_MODEL := EAGLE PRO AI M32
+  DEVICE_VARIANT := A1
+  DEVICE_DTS := mt7622-dlink-eagle-pro-ai-m32-a1
+  DEVICE_DTS_DIR := ../dts
+  DEVICE_PACKAGES := kmod-mt7915-firmware
+  KERNEL_SIZE := 8192k
+  BLOCKSIZE := 128k
+  PAGESIZE := 2048
+  UBINIZE_OPTS := -E 5
+  IMAGES += tftp.bin recovery.bin
+  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
+  IMAGE/tftp.bin := append-kernel | pad-to $$(KERNEL_SIZE) | append-ubi | check-size
+  IMAGE/recovery.bin := append-kernel | pad-to $$(KERNEL_SIZE) | append-ubi | pad-to $$(IMAGE_SIZE) | m32-recovery-header-kernel1
+endef
+TARGET_DEVICES += dlink_eagle-pro-ai-m32-a1
+
 define Device/elecom_wrc-2533gent
   DEVICE_VENDOR := Elecom
   DEVICE_MODEL := WRC-2533GENT

target/linux/mediatek/mt7622/base-files/etc/board.d/02_network

@@ -24,6 +24,9 @@ mediatek_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"0:lan" "1:lan" "2:lan" "3:lan" "4:wan" "6@eth0"
 		;;
+	dlink,eagle-pro-ai-m32-a1)
+		ucidef_set_interfaces_lan_wan "lan1 lan2" wan
+		;;
 	ubnt,unifi-6-lr*)
 		ucidef_set_interface_lan "eth0"
 		;;
@@ -61,6 +64,10 @@ mediatek_setup_macs()
 		wan_mac=$lan_mac
 		label_mac=$lan_mac
 		;;
+	dlink,eagle-pro-ai-m32-a1)
+		wan_mac=$(get_mac_label)
+		lan_mac=$(macaddr_add $(get_mac_label) 1)
+		;;
 	reyee,ax3200-e5|\
 	ruijie,rg-ew3200gx-pro)
 		lan_mac=$(macaddr_add $(get_mac_label) 1)

target/linux/mediatek/mt7622/base-files/etc/hotplug.d/ieee80211/11_fix_wifi_mac

@@ -18,6 +18,10 @@ case "$board" in
 		[ "$PHYNBR" = "0" ] && macaddr_add $basemac 1 > /sys${DEVPATH}/macaddress
 		[ "$PHYNBR" = "1" ] && macaddr_add $basemac 8 > /sys${DEVPATH}/macaddress
 		;;
+	dlink,eagle-pro-ai-m32-a1)
+		[ "$PHYNBR" = "0" ] && macaddr_add $(cat /sys/class/net/eth0/address) 2 > /sys${DEVPATH}/macaddress
+		[ "$PHYNBR" = "1" ] && macaddr_add $(cat /sys/class/net/eth0/address) 3 > /sys${DEVPATH}/macaddress
+		;;
 	reyee,ax3200-e5|\
 	ruijie,rg-ew3200gx-pro)
 		[ "$PHYNBR" = "0" ] && macaddr_add $(get_mac_label) 3 > /sys${DEVPATH}/macaddress

target/linux/mediatek/mt7622/base-files/lib/upgrade/platform.sh

@@ -34,6 +34,7 @@ platform_do_upgrade() {
 			nand_do_upgrade "$1"
 		fi
 		;;
+	dlink,eagle-pro-ai-m32-a1|\
 	elecom,wrc-x3200gst3|\
 	mediatek,mt7622-rfb1-ubi|\
 	netgear,wax206|\
@@ -72,6 +73,7 @@ platform_check_image() {
 	buffalo,wsr-3200ax4s)
 		buffalo_check_image "$board" "$magic" "$1" || return 1
 		;;
+  	dlink,eagle-pro-ai-m32-a1|\
 	elecom,wrc-x3200gst3|\
 	mediatek,mt7622-rfb1-ubi|\
 	netgear,wax206|\