Flashing NOR
From Openmoko
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==NOR image== | ==NOR image== | ||
− | You could | + | You could check the NOR image sample in following address: |
+ | |||
+ | [http://people.openmoko.org/tony_tu/GTA02/images/20080321_gta02_rc1/ GTA02 NOR image sample] |
Revision as of 06:13, 31 March 2008
Contents |
GTA02 Freerunner
NOR on GTA02
GTA02 has 2 MB of NOR flash for emgency boot or other usage.
Write NOR (GTA02)
You have to using debug board to pull high the write enable. You could use utility in follwoing address
GTA02 A5 DVT1 units (in prototypes page, comes without write protection nor, you could re-flash it anytime)
Flashing script
#!/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
NOR image
You could check the NOR image sample in following address: