blob: acc550ba42134bdb6e6b981ce42c1968fe313171 [file] [log] [blame]
#!/bin/sh
# Get the mtd device number (mtdX)
findmtd() {
m="$(grep -xl "$1" /sys/class/mtd/*/name)"
m="${m%/name}"
m="${m##*/}"
echo "${m}"
}
# Attach the pnor mtd device to ubi
attach_ubi() {
pnormtd="$(findmtd pnor)"
pnor="${pnormtd#mtd}"
pnordev="/dev/mtd${pnor}"
ubiattach /dev/ubi_ctrl -m "${pnor}" -d "${pnor}"
rc=$?
if [ ${rc} -ne 0 ]; then
# Check the pnor mtd device is formatted as ubi by reading the first 3 byes,
# which should be the ascii chars 'UBI'
magic="$(hexdump -C -n 3 ${pnordev})"
if [[ "${magic}" =~ "UBI" ]]; then
# Device already formatted as ubi, ubiattach failed for some other reason
return ${rc}
else
# Format device as ubi
echo "Starting ubiformat ${pnordev}"
ubiformat "${pnordev}" -y -q
# Retry the ubiattach
ubiattach /dev/ubi_ctrl -m "${pnor}" -d "${pnor}"
fi
fi
}
case "$1" in
ubiattach)
attach_ubi
;;
*)
echo "Invalid argument"
exit 1
;;
esac
rc=$?
if [ ${rc} -ne 0 ]; then
echo "$0: error ${rc}"
exit ${rc}
fi