ipq806x: nbg6817: sync MAC addresses to the upstream values

The ZyXEL NBG6817 calculates all MAC addresses based on the ethaddr
value stored in the U-Boot environment (0:APPSBLENV). No MAC addresses
are stored in the ART partition and the generated MAC addresses for the
wlan interfaces alternate randomly between 12:34:56:78:90:12 and
00:03:7f:12:34:56.

interface	  new/ OEM MAC	old MAC

wlan-2.4g (phy1): ethaddr	undefined
wlan-5g   (phy0): ethaddr + 1	undefined
lan             : ethaddr + 2	ethaddr
wan             : ethaddr + 3	ethaddr + 1

This patch defines stable MAC addresses for the wlan interfaces for
the first time instead of generating them at random. The previously
defined values for lan/ wan are changed to follow the settings of the
OEM firmware.

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>

target/linux/ipq806x/base-files/etc/board.d/02_network

@@ -47,8 +47,8 @@ nbg6817)
 	hw_mac_addr=$(mtd_get_mac_ascii 0:APPSBLENV ethaddr)
 	ucidef_add_switch "switch0" \
 		"1:lan" "2:lan" "3:lan" "4:lan" "6@eth1" "5:wan" "0@eth0"
-	ucidef_set_interface_macaddr "lan" "$hw_mac_addr"
+	ucidef_set_interface_macaddr "lan" "$(macaddr_add $hw_mac_addr 2)"
-	ucidef_set_interface_macaddr "wan" "$(macaddr_add $hw_mac_addr 1)"
+	ucidef_set_interface_macaddr "wan" "$(macaddr_add $hw_mac_addr 3)"
 	;;
 *)
 	echo "Unsupported hardware. Network interfaces not intialized"

target/linux/ipq806x/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac

@@ -23,6 +23,9 @@ case "$board" in
 	ea8500)
 		echo $(macaddr_add $(mtd_get_mac_ascii devinfo hw_mac_addr) $(($PHYNBR + 1)) ) > /sys${DEVPATH}/macaddress
 		;;
+	nbg6817)
+		echo $(macaddr_add $(mtd_get_mac_ascii 0:APPSBLENV ethaddr) $((1 - $PHYNBR)) ) > /sys${DEVPATH}/macaddress
+		;;
 	vr2600v)
 		echo $(macaddr_add $(mtd_get_mac_binary default-mac 0)  $(($PHYNBR - 1)) ) > /sys${DEVPATH}/macaddress
 		;;