6a83d089d7ab73f02f28f8f20838c040403febc5
[openwrt/openwrt.git] / scripts / arm-magic.sh
1 #!/usr/bin/env bash
2 #
3 # Empty/wrong machtype-workaround generator
4 #
5 # Copyright (C) 2006 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"
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/openwrt-$1-2.6-zImage
32 else
33 # we have a high machtypeid, we need a "mov" (e3a) and an "orr" (e38)
34 printf "\xe3\xa0\x10\x$(echo $hexid|cut -b "2 3")\xe3\x81\x1c\x$(echo $hexid|cut -b 1)" > $BIN_DIR/openwrt-$1-2.6-zImage
35 fi
36 # generate the image
37 cat $BIN_DIR/openwrt-ixp4xx-2.6-zImage >> $BIN_DIR/openwrt-$1-2.6-zImage
38 done