Openwrt/scripts/arm-magic.sh

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#!/usr/bin/env bash
#
# Empty/wrong machtype-workaround generator
#
# Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
# based on linux/arch/arm/boot/compressed/head-xscale.S
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# NOTE: for now it's for only IXP4xx in big endian mode
# list of supported boards, in "boardname machtypeid" format
for board in "avila 526" "gateway7001 731" "nslu2 597" "nas100d 865" "wg302v2 890" "pronghornmetro 1040"
do
set -- $board
hexid=$(printf %x\\n $2)
if [ "$2" -lt "256" ]; then
# we have a low machtypeid, we just need a "mov" (e3a)
printf "\xe3\xa0\x10\x$hexid" > $BIN_DIR/openwrt-$1-2.6-zImage
else
# we have a high machtypeid, we need a "mov" (e3a) and an "orr" (e38)
printf "\xe3\xa0\x10\x$(echo $hexid|cut -b "2 3")\xe3\x81\x1c\x$(echo $hexid|cut -b 1)" > $BIN_DIR/openwrt-$1-2.6-zImage
fi
# generate the image
cat $BIN_DIR/openwrt-ixp4xx-2.6-zImage >> $BIN_DIR/openwrt-$1-2.6-zImage
done