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GTA02 FreeRunner

NOR on GTA02

GTA02 has 2 MB of NOR flash for emergency boot or other usage.

Write NOR (GTA02)

You have to use a debug board and norwp utility to pull high the write enable line. Alternatively, you can just connect an external 1.8-3.3V supply the relevant testpoint (H-TP4711, see schematics and pcb layout); a hackish approach would be to temporarily connect H-TP4711 to H-TP4714 (console rxd) and then issue ``s3c24xx-gpio h7=1 command to ensure needed voltage (this is not supported, though experimentally tested approach). 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)

Flashing script

    #!/bin/sh -e
    # flashnor - Flash a file into NOR (M58WR016KB)
    # Copyright (C) 2008 by Openmoko, Inc.
    # Written by Werner Almesberger <>
    # 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.
        echo "usage: $0 nor.bin" 1>&2
        exit 1
        nor=`dd if=$DEV bs=$size count=1 | md5sum`
        [ "$nor" = "$ref" ]
        ff=`dd if=/dev/zero bs=$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`
        blocks=`expr \( $size - 65536 + 65535 \) / 65536 + 8`
    ref=`md5sum <"$1"`
    check && exit
    flash_unlock $DEV
    empty || flash_erase $DEV 0 $blocks
    cat "$1" >$DEV
    flash_lock /dev/mtd0 0 -1

NOR image

You could check the NOR image sample in following address:

GTA02 NOR image sample