diff --git a/target/linux/ep93xx/base-files/lib/preinit/05_set_ether_mac_rdc b/target/linux/ep93xx/base-files/lib/preinit/05_set_ether_mac_rdc
new file mode 100644
index 0000000000..948ed74c35
--- /dev/null
+++ b/target/linux/ep93xx/base-files/lib/preinit/05_set_ether_mac_rdc
@@ -0,0 +1,12 @@
+#!/bin/sh
+# Copyright (C) 2010 OpenWrt.org
+
+. /lib/functions/boot.sh
+
+set_ether_mac() {
+	mac=$(sed -n 's/^Serial.* 000000/02/p' /proc/cpuinfo)
+	ifconfig eth0 hw ether $mac
+}
+
+boot_hook_add preinit_main set_ether_mac
+