diff --git a/root/target/linux/mediatek/mt7623/base-files/etc/board.d/02_network b/root/target/linux/mediatek/mt7623/base-files/etc/board.d/02_network
new file mode 100755
index 00000000..50373f01
--- /dev/null
+++ b/root/target/linux/mediatek/mt7623/base-files/etc/board.d/02_network
@@ -0,0 +1,36 @@
+#!/bin/sh
+
+. /lib/functions.sh
+. /lib/functions/uci-defaults.sh
+. /lib/functions/system.sh
+
+mediatek_setup_interfaces()
+{
+	local board="$1"
+
+	case $board in
+	bananapi,bpi-r2|\
+	unielec,u7623-02-emmc-512m)
+		ucidef_set_interfaces_lan_wan "wan1 wan2 wan3 wan4" "lan"
+		;;
+	esac
+}
+
+mediatek_setup_macs()
+{
+	local board="$1"
+
+	case $board in
+	unielec,u7623-02-emmc-512m)
+		ucidef_set_interface_macaddr "wan" "$(cat /sys/class/net/wan/address)"
+		;;
+	esac
+}
+
+board_config_update
+board=$(board_name)
+mediatek_setup_interfaces $board
+mediatek_setup_macs $board
+board_config_flush
+
+exit 0
diff --git a/root/target/linux/mediatek/mt7623/base-files/lib/preinit/07_set_iface_mac b/root/target/linux/mediatek/mt7623/base-files/lib/preinit/07_set_iface_mac
new file mode 100644
index 00000000..7a73a2d8
--- /dev/null
+++ b/root/target/linux/mediatek/mt7623/base-files/lib/preinit/07_set_iface_mac
@@ -0,0 +1,47 @@
+#!/bin/sh
+# Copyright (C) 2018 OpenWrt.org
+
+RECOVERY_PART=/dev/mmcblk0p1
+
+preinit_set_mac_address() {
+	local mac
+
+	. /lib/functions.sh
+	. /lib/functions/system.sh
+
+	case $(board_name) in
+	unielec,u7623-02-emmc-512m)
+		if [ -b $RECOVERY_PART ]; then
+			insmod nls_cp437
+			insmod nls_iso8859-1
+			insmod fat
+			insmod vfat
+			mkdir -p /tmp/recovery
+			mount -o rw,noatime $RECOVERY_PART /tmp/recovery
+
+			if [ -f "/tmp/recovery/mac_addr" ];
+			then
+				mac=$(cat /tmp/recovery/mac_addr)
+			else
+				mac=$(cat /sys/class/net/eth0/address)
+				echo "$mac" > /tmp/recovery/mac_addr
+			fi
+
+			sync
+			umount /tmp/recovery
+			rm -rf /tmp/recovery
+		fi
+
+		ip link set dev wan address $mac 2> /dev/null
+
+		mac=$(macaddr_add $mac 1)
+
+		ip link set dev lan0 address $mac 2>/dev/null
+		ip link set dev lan1 address $mac 2>/dev/null
+		ip link set dev lan2 address $mac 2>/dev/null
+		ip link set dev lan3 address $mac 2>/dev/null
+		;;
+	esac
+}
+
+boot_hook_add preinit_main preinit_set_mac_address
diff --git a/root/target/linux/mediatek/mt7623/base-files/lib/preinit/79_move_config b/root/target/linux/mediatek/mt7623/base-files/lib/preinit/79_move_config
new file mode 100644
index 00000000..4be18114
--- /dev/null
+++ b/root/target/linux/mediatek/mt7623/base-files/lib/preinit/79_move_config
@@ -0,0 +1,19 @@
+#!/bin/sh
+# Copyright (C) 2012-2015 OpenWrt.org
+
+move_config() {
+	local partdev
+
+	. /lib/upgrade/common.sh
+
+	if export_bootdevice && export_partdevice partdev -1; then
+		if mount -t vfat -o rw,noatime "/dev/$partdev" /mnt; then
+			if [ -f /mnt/sysupgrade.tgz ]; then
+				mv -f /mnt/sysupgrade.tgz /
+			fi
+			umount /mnt
+		fi
+	fi
+}
+
+boot_hook_add preinit_mount_root move_config
diff --git a/root/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh b/root/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh
new file mode 100755
index 00000000..f117f98c
--- /dev/null
+++ b/root/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh
@@ -0,0 +1,154 @@
+platform_do_upgrade() {
+	local board=$(board_name)
+
+	case "$board" in
+	unielec,u7623-02-emmc-512m)
+		#Keep the persisten random mac address (if it exists)
+		mkdir -p /tmp/recovery
+		mount -o rw,noatime /dev/mmcblk0p1 /tmp/recovery
+		[ -f "/tmp/recovery/mac_addr" ] && \
+			mv -f /tmp/recovery/mac_addr /tmp/
+		umount /tmp/recovery
+
+		#1310720 is the offset in bytes from the start of eMMC and to
+		#the location of the kernel (2560 512 byte sectors)
+		get_image "$1" | dd of=/dev/mmcblk0 bs=1310720 seek=1 conv=fsync
+
+		mount -o rw,noatime /dev/mmcblk0p1 /tmp/recovery
+		[ -f "/tmp/mac_addr" ] && mv -f /tmp/mac_addr /tmp/recovery
+		sync
+		umount /tmp/recovery
+		;;
+	bananapi,bpi-r2)
+		local diskdev partdev diff
+
+		export_bootdevice && export_partdevice diskdev -2 || {
+			echo "Unable to determine upgrade device"
+			return 1
+		}
+
+		sync
+
+		if [ "$SAVE_PARTITIONS" = "1" ]; then
+			get_partitions "/dev/$diskdev" bootdisk
+
+			#extract the boot sector from the image
+			get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b
+
+			get_partitions /tmp/image.bs image
+
+			#compare tables
+			diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
+		else
+			diff=1
+		fi
+
+		if [ -n "$diff" ]; then
+			get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync
+
+			# Separate removal and addtion is necessary; otherwise, partition 1
+			# will be missing if it overlaps with the old partition 2
+			partx -d - "/dev/$diskdev"
+			partx -a - "/dev/$diskdev"
+
+			return 0
+		fi
+
+		#write uboot image
+		get_image "$@" | dd of="$diskdev" bs=1024 skip=320 seek=320 count=700 conv=fsync
+		#iterate over each partition from the image and write it to the boot disk
+		while read part start size; do
+			part="$(($part - 2))"
+			if export_partdevice partdev $part; then
+				echo "Writing image to /dev/$partdev..."
+				get_image "$@" | dd of="/dev/$partdev" ibs="512" obs=1M skip="$start" count="$size" conv=fsync
+			else
+				echo "Unable to find partition $part device, skipped."
+			fi
+		done < /tmp/partmap.image
+
+		#copy partition uuid
+		echo "Writing new UUID to /dev/$diskdev..."
+		get_image "$@" | dd of="/dev/$diskdev" bs=1 skip=440 count=4 seek=440 conv=fsync
+		;;
+	*)
+		default_do_upgrade "$1"
+		;;
+	esac
+}
+
+PART_NAME=firmware
+
+platform_check_image() {
+	local board=$(board_name)
+	local magic="$(get_magic_long "$1")"
+
+	[ "$#" -gt 1 ] && return 1
+
+	case "$board" in
+	unielec,u7623-02-emmc-512m)
+		[ "$magic" != "27051956" ] && {
+			echo "Invalid image type."
+			return 1
+		}
+		return 0
+		;;
+	bananapi,bpi-r2)
+		local diskdev partdev diff
+
+		export_bootdevice && export_partdevice diskdev -2 || {
+			echo "Unable to determine upgrade device"
+			return 1
+		}
+
+		get_partitions "/dev/$diskdev" bootdisk
+
+		#extract the boot sector from the image
+		get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b 2>/dev/null
+
+		get_partitions /tmp/image.bs image
+
+		#compare tables
+		diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
+
+		rm -f /tmp/image.bs /tmp/partmap.bootdisk /tmp/partmap.image
+
+		if [ -n "$diff" ]; then
+			echo "Partition layout has changed. Full image will be written."
+			ask_bool 0 "Abort" && exit 1
+			return 0
+		fi
+		;;
+	*)
+		echo "Sysupgrade is not supported on your board yet."
+		return 1
+		;;
+	esac
+
+	return 0
+}
+
+platform_copy_config_emmc() {
+	mkdir -p /recovery
+	mount -o rw,noatime /dev/mmcblk0p1 /recovery
+	cp -af "$UPGRADE_BACKUP" "/recovery/$BACKUP_FILE"
+	sync
+	umount /recovery
+}
+
+platform_copy_config() {
+	case "$(board_name)" in
+	unielec,u7623-02-emmc-512m)
+		platform_copy_config_emmc
+		;;
+	bananapi,bpi-r2)
+		local partdev
+
+		if export_partdevice partdev -1; then
+			mount -t vfat -o rw,noatime "/dev/$partdev" /mnt
+			cp -af "$CONF_TAR" /mnt/
+			umount /mnt
+		fi
+		;;
+	esac
+}