| 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 | } |
| 99 | |
