View source for Flashing NOR
From Openmoko
You do not have permission to edit this page, for the following reasons:
You can view and copy the source of this page:
Return to Flashing NOR.
You do not have permission to edit this page, for the following reasons:
You can view and copy the source of this page:
Return to Flashing NOR.
GTA02 has 2 MB of NOR flash for emergency boot or other usage.
You have to use a debug board and norwp utility to pull low the write enable line. Alternatively, you can just short the relevant testpoint (see schematics and pcb layout). You could use flashing script from the following address: [1].
GTA02 A5 DVT1 units (in prototypes page, comes without write protection nor, you could re-flash it anytime)
#!/bin/sh -e # # flashnor - Flash a file into NOR (M58WR016KB) # # Copyright (C) 2008 by Openmoko, Inc. # Written by Werner Almesberger <werner@openmoko.org> # All Rights Reserved # # 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. # DEV=/dev/mtd0 usage() { echo "usage: $0 nor.bin" 1>&2 exit 1 } check() { nor=`dd if=$DEV bs=$size count=1 | md5sum` [ "$nor" = "$ref" ] } empty() { ff=`dd if=/dev/zero bs=$size count=1 | tr '\000' '\377' | md5sum` [ "$ff" = "$nor" ] } [ -z "$1" -o ! -z "$2" ] && usage size=`ls -l "$1" | awk '{ print $5 }'` if [ $size -lt 65536 ]; then blocks=`expr \( $size + 8191 \) / 8192` else blocks=`expr \( $size - 65536 + 65535 \) / 65536 + 8` fi ref=`md5sum <"$1"` check && exit flash_unlock $DEV empty || flash_erase $DEV 0 $blocks cat "$1" >$DEV flash_lock /dev/mtd0 0 -1 check
You could check the NOR image sample in following address: