package/nvram/files/nvram.init

   1 #!/bin/sh /etc/rc.common
   2 # NVRAM setup
   3 #
   4 # This file handles the NVRAM quirks of various hardware.
   5
   6 START=02
   7 alias debug=${DEBUG:-:}
   8
   9 nvram_default() {
  10         [ -z "$(nvram get $1)" ] && nvram set "$1=$2"
  11 }
  12
  13 nvram_set() { # for the linksys fixup part
  14         [ "$(nvram get "$1")" = "$2" -a "$2" != "" ] || {
  15                 COMMIT=1
  16                 /usr/sbin/nvram set "$1=$2"
  17         }
  18 }
  19
  20 fixup_linksys() {
  21         # work around braindead CFE defaults in linksys routers
  22         boardtype=$(nvram get boardtype)
  23         boardnum=$(nvram get boardnum)
  24         boardflags=$(($(nvram get boardflags)))
  25         adm_switch="$(( ($boardflags & 0x80) >> 7 ))"
  26
  27         [ -n "$(nvram get vxkilled)" ] && boardtype=0 # don't mess with the ram settings on the hacked cfe
  28         case "$(( $boardtype ))" in
  29                 "1800") #0x708
  30                         if [ "$adm_switch" = 0 ]; then
  31                                 nvram_set sdram_init "$(printf 0x%04x $(( $(/usr/sbin/nvram get sdram_init) | 0x0100 )))"
  32                                 [ "$COMMIT" = 1 ] && {
  33                                         nvram_set clkfreq 216
  34                                         nvram_set sdram_ncdl 0x0
  35                                         nvram_set pa0itssit 62
  36                                         nvram_set pa0b0 0x15eb
  37                                         nvram_set pa0b1 0xfa82
  38                                         nvram_set pa0b2 0xfe66
  39                                         nvram_set pa0maxpwr 0x4e
  40                                 }
  41                         fi
  42                 ;;
  43                 "1127") #0x467
  44                         nvram_set sdram_init "$(printf 0x%04x $(( $(/usr/sbin/nvram get sdram_init) | 0x0100 )))"
  45                         [ "$COMMIT" = 1 ] && {
  46                                 nvram_set sdram_ncdl 0x0
  47                                 nvram_set pa0itssit 62
  48                                 nvram_set pa0b0 0x168b
  49                                 nvram_set pa0b1 0xfabf
  50                                 nvram_set pa0b2 0xfeaf
  51                                 nvram_set pa0maxpwr 0x4e
  52                         }
  53                 ;;
  54         esac
  55         [ "$COMMIT" = "1" ] && nvram commit
  56 }
  57
  58 start() {
  59         fixup_linksys
  60
  61         # OFDM Power Offset is set incorrectly on many boards.
  62         # Setting it to 0 will increase the tx power to normal levels.
  63         nvram_set opo 0x0
  64
  65         [ "$(nvram get il0macaddr)" = "00:90:4c:5f:00:2a" ] && {
  66                 # if default wifi mac, set two higher than the lan mac
  67                 nvram set il0macaddr=$(nvram get et0macaddr|
  68                 awk '{OFS=FS=":";for(x=7,y=2;--x;){$x=sprintf("%02x",(y+="0x"$x)%256);y/=256}print}')
  69         }
  70 }