scripts/arm-magic.sh

   1 #!/usr/bin/env bash
   2 #
   3 #   Empty/wrong machtype-workaround generator
   4 #
   5 #   Copyright (C) 2006-2012 Imre Kaloz <kaloz@openwrt.org>
   6 #   based on linux/arch/arm/boot/compressed/head-xscale.S
   7 #
   8 #   This program is free software; you can redistribute it and/or modify
   9 #   it under the terms of the GNU General Public License as published by
  10 #   the Free Software Foundation; either version 2 of the License, or
  11 #   (at your option) any later version.
  12 #
  13 #   This program is distributed in the hope that it will be useful,
  14 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 #   GNU General Public License for more details.
  17 #
  18 #   You should have received a copy of the GNU General Public License
  19 #   along with this program; if not, write to the Free Software
  20 #   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21
  22 # NOTE: for now it's for only IXP4xx in big endian mode
  23
  24 # list of supported boards, in "boardname machtypeid" format
  25 for board in "avila 526" "gateway7001 731" "nslu2 597" "nas100d 865" "wg302v1 889" "wg302v2 890" "pronghorn 928" "pronghornmetro 1040" "compex 1273" "wrt300nv2 1077" "loft 849" "dsmg600 964" "fsg3 1091" "ap1000 1543" "tw2662 1658" "tw5334 1664" "ixdpg425 604" "cambria 1468" "sidewinder 1041" "ap42x 4418"
  26 do
  27   set -- $board
  28   hexid=$(printf %x\\n $2)
  29   if [ "$2" -lt "256" ]; then
  30     # we have a low machtypeid, we just need a "mov" (e3a)
  31     printf "\xe3\xa0\x10\x$hexid" > $BIN_DIR/$IMG_PREFIX-$1-zImage
  32   else
  33     # we have a high machtypeid, we need a "mov" (e3a) and an "orr" (e38)
  34     if [ "$2" -lt "4096" ]; then
  35       printf "\xe3\xa0\x10\x$(echo $hexid|cut -b "2 3")\xe3\x81\x1c\x$(echo $hexid|cut -b 1)" > $BIN_DIR/$IMG_PREFIX-$1-zImage
  36     else
  37       printf "\xe3\xa0\x10\x$(echo $hexid|cut -b "3 4")\xe3\x81\x1c\x$(echo $hexid|cut -b "1 2")" > $BIN_DIR/$IMG_PREFIX-$1-zImage
  38     fi
  39   fi
  40     # generate the image
  41     cat $BIN_DIR/$IMG_PREFIX-zImage >> $BIN_DIR/$IMG_PREFIX-$1-zImage
  42 done