mediatek: bpi-r4: store random MAC addresses for the BPi-R4

Despite coming with multiple I2C EEPROMs supposedly dedicated for that
purpose, the BPi-R4 does not seem to have factory assigned MAC addresses.
Hence, just like for all other BPi boards, store a randomly generated
MAC address on first boot and derive WAN and Wi-Fi MAC addresses from
that as well. Not perfect, but better than random on every boot.

Signed-off-by: Daniel Golle <[email protected]>

target/linux/mediatek/base-files/etc/uci-defaults/99_fwenv-store-ethaddr.sh

@@ -10,7 +10,8 @@ unielec,u7623-02)
 		fw_setenv ethaddr "$(cat /sys/class/net/eth0/address)"
 	;;
 bananapi,bpi-r3|\
-bananapi,bpi-r3-mini)
+bananapi,bpi-r3-mini|\
+bananapi,bpi-4)
 	[ -z "$(fw_printenv -n ethaddr 2>/dev/null)" ] &&
 		fw_setenv ethaddr "$(cat /sys/class/net/eth0/address)"
 	[ -z "$(fw_printenv -n eth1addr 2>/dev/null)" ] &&

target/linux/mediatek/files-6.1/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts

@@ -17,6 +17,8 @@
 		     "mediatek,mt7988a";
 
 	aliases {
+		ethernet0 = &gmac0;
+		ethernet1 = &gmac1;
 		serial0 = &uart0;
 		led-boot = &led_green;
 		led-failsafe = &led_green;

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

@@ -120,7 +120,8 @@ mediatek_setup_macs()
 
 	case $board in
 	bananapi,bpi-r3|\
-	bananapi,bpi-r3-mini)
+	bananapi,bpi-r3-mini|\
+	bananapi,bpi-r4)
 		wan_mac=$(macaddr_add $(cat /sys/class/net/eth0/address) 1)
 		;;
 	cmcc,rax3000m)

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

@@ -42,6 +42,12 @@ case "$board" in
 		[ "$PHYNBR" = "0" ] && macaddr_add $addr 2 > /sys${DEVPATH}/macaddress
 		[ "$PHYNBR" = "1" ] && macaddr_add $addr 3 > /sys${DEVPATH}/macaddress
 		;;
+	bananapi,bpi-r4)
+		addr=$(cat /sys/class/net/eth0/address)
+		[ "$PHYNBR" = "0" ] && macaddr_add $addr 2 > /sys${DEVPATH}/macaddress
+		[ "$PHYNBR" = "1" ] && macaddr_add $addr 3 > /sys${DEVPATH}/macaddress
+		[ "$PHYNBR" = "2" ] && macaddr_add $addr 4 > /sys${DEVPATH}/macaddress
+		;;
 	cetron,ct3003)
 		addr=$(mtd_get_mac_binary "art" 0)
 		[ "$PHYNBR" = "0" ] && macaddr_add $addr 1 > /sys${DEVPATH}/macaddress