diff --git a/target/linux/mvebu/cortexa9/base-files/lib/preinit/06_set_iface_mac b/target/linux/mvebu/cortexa9/base-files/lib/preinit/06_set_iface_mac
deleted file mode 100644
index 62ce2653a0..0000000000
--- a/target/linux/mvebu/cortexa9/base-files/lib/preinit/06_set_iface_mac
+++ /dev/null
@@ -1,50 +0,0 @@
-#
-# Copyright (C) 2014-2015 OpenWrt.org
-# Copyright (C) 2016 LEDE-Project.org
-#
-
-preinit_set_mac_address() {
-	local mac
-
-	. /lib/functions.sh
-
-	case $(board_name) in
-	buffalo,ls421de)
-		mac=$(mtd_get_mac_ascii u-boot-env eth1addr)
-		ip link set dev eth0 address $mac 2>/dev/null
-		;;
-	linksys,caiman|linksys,cobra|linksys,rango|linksys,shelby|linksys,venom)
-		# rename interfaces back to the way they were with 4.4
-		case "$(readlink /sys/class/net/eth0)" in
-			*f1070000*)
-				ip link set eth0 name tmp0
-				ip link set eth1 name eth0
-				ip link set tmp0 name eth1
-			;;
-		esac
-
-		mac=$(mtd_get_mac_ascii devinfo hw_mac_addr)
-		mac_wan=$(macaddr_setbit_la "$mac")
-		ip link set dev eth0 address $mac 2>/dev/null
-		ip link set dev eth1 address $mac_wan 2>/dev/null
-		;;
-	linksys,mamba)
-		mac=$(mtd_get_mac_ascii devinfo hw_mac_addr)
-		ip link set dev eth0 address $mac 2>/dev/null
-		ip link set dev eth1 address $mac 2>/dev/null
-		;;
-	marvell,a385-db-ap|solidrun,clearfog*a1)
-		# rename interfaces back to the way they were with 4.4
-		case "$(readlink /sys/class/net/eth0)" in
-			*f1070000*)
-				ip link set eth0 name tmp0
-				ip link set eth1 name eth0
-				ip link set eth2 name eth1
-				ip link set tmp0 name eth2
-			;;
-		esac
-		;;
-	esac
-}
-
-boot_hook_add preinit_main preinit_set_mac_address