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#!/bin/sh /etc/rc.common
# NVRAM setup
#
# This file handles the NVRAM quirks of various hardware.
START=02
alias debug=${DEBUG:-:}
nvram_default() {
[ -z "$(nvram get $1)" ] && nvram set "$1=$2"
}
nvram_set() { # for the linksys fixup part
[ "$(nvram get "$1")" = "$2" -a "$2" != "" ] || {
COMMIT=1
/usr/sbin/nvram set "$1=$2"
}
}
fixup_linksys() {
# work around braindead CFE defaults in linksys routers
boardtype=$(nvram get boardtype)
boardnum=$(nvram get boardnum)
boardflags=$(($(nvram get boardflags)))
adm_switch="$(( ($boardflags & 0x80) >> 7 ))"
[ -n "$(nvram get vxkilled)" ] && boardtype=0 # don't mess with the ram settings on the hacked cfe
case "$(( $boardtype ))" in
"1800") #0x708
if [ "$adm_switch" = 0 ]; then
nvram_set sdram_init "$(printf 0x%04x $(( $(/usr/sbin/nvram get sdram_init) | 0x0100 )))"
[ "$COMMIT" = 1 ] && {
nvram_set clkfreq 216
nvram_set sdram_ncdl 0x0
nvram_set pa0itssit 62
nvram_set pa0b0 0x15eb
nvram_set pa0b1 0xfa82
nvram_set pa0b2 0xfe66
nvram_set pa0maxpwr 0x4e
}
fi
;;
"1127") #0x467
nvram_set sdram_init "$(printf 0x%04x $(( $(/usr/sbin/nvram get sdram_init) | 0x0100 )))"
[ "$COMMIT" = 1 ] && {
nvram_set sdram_ncdl 0x0
nvram_set pa0itssit 62
nvram_set pa0b0 0x168b
nvram_set pa0b1 0xfabf
nvram_set pa0b2 0xfeaf
nvram_set pa0maxpwr 0x4e
}
;;
"1071") #0x042f
# do sanity check first! max 0x0011 = 128mb
SDRAM_INIT=$(printf %d $(/usr/sbin/nvram get sdram_init))
[ "$SDRAM_INIT" -lt "9" -o "$SDRAM_INIT" -gt "17" ] && {
# set this to default: 0x09 only if value is invaild like 16MB on Asus WL-500GP
echo "sdram_init is invaild: $(printf 0x%04x $SDRAM_INIT), force to default!"
nvram_set sdram_init 0x0009
}
# on WRT54G3GV2 set flag, so checksum errors of firmware image 2 don't stop the boot process
noset_try_flag=$(nvram get noset_try_flag)
[ "$noset_try_flag" = 0 ] && {
echo "setting noset_try_flag to 1."
nvram_set noset_try_flag 1
}
[ "$COMMIT" = 1 ] && {
nvram_set sdram_ncdl 0x0
}
esac
}
start() {
# Don't do any fixups on the WGT634U
[ "$(cat /proc/diag/model)" = "Netgear WGT634U" ] && return
fixup_linksys
# OFDM Power Offset is set incorrectly on many boards.
# Setting it to 0 will increase the tx power to normal levels.
nvram_set opo 0x0
[ "$(nvram get il0macaddr)" = "00:90:4c:5f:00:2a" ] && {
# if default wifi mac, set two higher than the lan mac
nvram set il0macaddr=$(nvram get et0macaddr|
awk '{OFS=FS=":";for(x=7,y=2;--x;){$x=sprintf("%02x",(y+="0x"$x)%256);y/=256}print}')
}
[ "$(nvram get et0macaddr)" = "00:90:4c:c0:00:08" ] && {
# OvisLink WL-1600GL mac workaround
nvram set et0macaddr=$(hexdump -n 6 -s 130976 -e '5/1 "%02x:" "%02x" ' /dev/mtd/0)
nvram set il0macaddr=$(nvram get et0macaddr|
awk '{OFS=FS=":";for(x=7,y=2;--x;){$x=sprintf("%02x",(y+="0x"$x)%256);y/=256}print}')
}
[ "$COMMIT" = "1" ] && nvram commit
}
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