--- /dev/null
+#!/bin/sh
+
+[ -e /lib/firmware/$FIRMWARE ] && exit 0
+
+. /lib/functions/caldata.sh
+. /lib/functions/mikrotik-caldata.sh
+
+board=$(board_name)
+
+case "$FIRMWARE" in
+"ath9k-eeprom-ahb-18100000.wmac.bin")
+ case $board in
+ mikrotik,routerboard-wap-g-5hact2hnd)
+ mikrotik_caldata_extract "art" 0x1000 0x440
+ ath9k_patch_mac $(macaddr_add $(mtd_get_mac_binary art 0x10) +2)
+ ;;
+ *)
+ caldata_die "board $board is not supported yet"
+ ;;
+ esac
+ ;;
+esac