package/system/utils/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                 "1071") #0x042f
  55                         # do sanity check first! max 0x0011 = 128mb
  56                         SDRAM_INIT=$(printf %d $(/usr/sbin/nvram get sdram_init))
  57                         [ "$SDRAM_INIT" -lt "9" -o "$SDRAM_INIT" -gt "17" ] && {
  58                                 # set this to default: 0x09 only if value is invaild like 16MB on Asus WL-500GP
  59                                 echo "sdram_init is invaild: $(printf 0x%04x $SDRAM_INIT), force to default!"
  60                                 nvram_set sdram_init 0x0009
  61                         }
  62                         # on WRT54G3GV2 set flag, so checksum errors of firmware image 2 don't stop the boot process
  63                         noset_try_flag=$(nvram get noset_try_flag)
  64                         [ "$noset_try_flag" = 0 ] && {
  65                                 echo "setting noset_try_flag to 1."
  66                                 nvram_set noset_try_flag 1
  67                         }
  68                         [ "$COMMIT" = 1 ] && {
  69                                 nvram_set sdram_ncdl 0x0
  70                         }
  71         esac
  72 }
  73
  74 start() {
  75         # Don't do any fixups on the WGT634U
  76         [ "$(cat /proc/diag/model)" = "Netgear WGT634U" ] && return
  77
  78         fixup_linksys
  79
  80         # OFDM Power Offset is set incorrectly on many boards.
  81         # Setting it to 0 will increase the tx power to normal levels.
  82         nvram_set opo 0x0
  83
  84         [ "$(nvram get il0macaddr)" = "00:90:4c:5f:00:2a" ] && {
  85                 # if default wifi mac, set two higher than the lan mac
  86                 nvram set il0macaddr=$(nvram get et0macaddr|
  87                 awk '{OFS=FS=":";for(x=7,y=2;--x;){$x=sprintf("%02x",(y+="0x"$x)%256);y/=256}print}')
  88         }
  89
  90         [ "$(nvram get et0macaddr)" = "00:90:4c:c0:00:08" ] && {
  91                 # OvisLink WL-1600GL mac workaround
  92                 nvram set et0macaddr=$(hexdump -n 6 -s 130976 -e '5/1 "%02x:" "%02x" ' /dev/mtd/0)
  93                 nvram set il0macaddr=$(nvram get et0macaddr|
  94                 awk '{OFS=FS=":";for(x=7,y=2;--x;){$x=sprintf("%02x",(y+="0x"$x)%256);y/=256}print}')
  95         }
  96
  97         [ "$COMMIT" = "1" ] && nvram commit
  98 }