target/linux/ramips/base-files/lib/preinit/07_set_preinit_iface_ramips

   1 #!/bin/sh
   2 #
   3 # Copyright (C) 2013 OpenWrt.org
   4 #
   5
   6 . /lib/ramips.sh
   7
   8 ramips_set_preinit_iface() {
   9         RT3X5X=`cat /proc/cpuinfo | egrep "(RT3.5|RT5350|MT7628|MT7688)"`
  10         MT762X=`cat /proc/cpuinfo | egrep "MT7620"`
  11
  12         if [ -n "${RT3X5X}" ]; then
  13                 swconfig dev rt305x set reset 1
  14         elif [ -n "${MT762X}" ]; then
  15                 # The mt7530 switch driver enables VLAN by default, but
  16                 # failsafe uses eth0, making the device unreachable:
  17                 # https://dev.openwrt.org/ticket/18768
  18                 case "${MT762X}" in
  19                 *MT7620*)
  20                         mt762x_switchdev=mt7620
  21                         ;;
  22                 esac
  23                 swconfig dev $mt762x_switchdev set reset 1
  24                 swconfig dev $mt762x_switchdev set enable_vlan 0
  25                 swconfig dev $mt762x_switchdev set apply 1
  26         fi
  27
  28         if echo $RT3X5X | egrep -q "(RT5350|MT7628|MT7688)"; then
  29                 # This is a dirty hack to get by while the switch
  30                 # problem is investigated. When VLAN is disabled, ICMP
  31                 # pings work as expected, but TCP connections time
  32                 # out, so telnetting in failsafe is impossible. The
  33                 # likely reason is TCP checksumming hardware getting
  34                 # disabled:
  35                 # https://www.mail-archive.com/openwrt-devel@lists.openwrt.org/msg19870.html
  36                 swconfig dev rt305x set enable_vlan 1
  37                 swconfig dev rt305x vlan 1 set ports "0 6"
  38                 swconfig dev rt305x port 6 set untag 0
  39                 swconfig dev rt305x set apply 1
  40                 ip link add link eth0 name eth0.1 type vlan id 1
  41                 ip link set eth0 up
  42                 ifname=eth0.1
  43         else
  44                 ifname=eth0
  45         fi
  46 }
  47
  48 boot_hook_add preinit_main ramips_set_preinit_iface