#!/bin/sh


usage()
{
    echo "usage: $0 [-m gta01|gta02] [dirname]" 1>&2
    exit 1
}


mach=gta02

while true; do
    case "$1" in
        -m)
	    shift
	    mach="$1";;
	-*)
	    usage;;
	*)
	    break;;
    esac
    shift
done

dir=${1:-root}
name="`basename $dir`"

if [ ! -d "$dir" ]; then
    echo "usage: $0 [dirname]" 1>&2
    exit 1
fi

case $mach in
    gta01)
	eb=0x4000;;
    gta02)
	eb=0x20000
	ps_opt="--pagesize=0x800";;
    *)
	usage;;
esac

mkfs.jffs2 --eraseblock=$eb $ps_opt --no-cleanmarkers \
  --little-endian --pad -o _tmp -d $dir
sumtool --eraseblock=$eb --no-cleanmarkers \
  --littleendian --pad -i _tmp -o $name.jffs2
rm -f _tmp