| #!/bin/sh |
| |
| # Get the mtd device number (mtdX) |
| findmtd() { |
| m="$(grep -xl "$1" /sys/class/mtd/*/name)" |
| m="${m%/name}" |
| m="${m##*/}" |
| echo "${m}" |
| } |
| |
| # Get the ubi device number (ubiX_Y) |
| findubi() { |
| u="$(grep -xl "$1" /sys/class/ubi/ubi?/subsystem/ubi*/name)" |
| u="${u%/name}" |
| u="${u##*/}" |
| echo "${u}" |
| } |
| |
| ubi_rw() { |
| rwmtd="$(findmtd "${reqmtd}")" |
| rw="${rwmtd#mtd}" |
| ubidev="/dev/ubi${rw}" |
| |
| # Create a ubi volume of size 4MB, that is the current size of the rwfs image |
| vol="$(findubi "${name}")" |
| if [ -z "${vol}" ]; then |
| ubimkvol "${ubidev}" -N "${name}" -s 4MiB |
| fi |
| } |
| |
| ubi_ro() { |
| romtd="$(findmtd "${reqmtd}")" |
| ro="${romtd#mtd}" |
| ubidev="/dev/ubi${ro}" |
| |
| # Create a static ubi volume |
| # TODO Get the actual image size openbmc/openbmc#1840 |
| vol="$(findubi "${name}")" |
| if [ -z "${vol}" ]; then |
| ubimkvol "${ubidev}" -N "${name}" -s "${imgsize}" --type=static |
| vol="$(findubi "${name}")" |
| fi |
| } |
| |
| # Squashfs images need a ubi block |
| ubi_block() { |
| vol="$(findubi "${name}")" |
| ubidevid="${vol#ubi}" |
| block="/dev/ubiblock${ubidevid}" |
| if [ ! -e "$block" ]; then |
| ubiblock --create "/dev/ubi${ubidevid}" |
| fi |
| } |
| |
| ubi_updatevol() { |
| vol="$(findubi "${name}")" |
| ubidevid="${vol#ubi}" |
| img="/tmp/images/${version}/${imgfile}" |
| ubiupdatevol "/dev/ubi${ubidevid}" "${img}" |
| } |
| |
| case "$1" in |
| ubirw) |
| reqmtd="$2" |
| name="$3" |
| ubi_rw |
| ;; |
| ubiro) |
| reqmtd="$2" |
| name="$3" |
| version="$4" |
| imgfile="image-rofs" |
| imgsize="16MiB" |
| ubi_ro |
| ubi_block |
| ubi_updatevol |
| ;; |
| ubikernel) |
| reqmtd="$2" |
| name="$3" |
| version="$4" |
| imgfile="image-kernel" |
| imgsize="4MiB" |
| ubi_ro |
| ubi_updatevol |
| ;; |
| *) |
| echo "Invalid argument" |
| exit 1 |
| ;; |
| esac |
| rc=$? |
| if [ ${rc} -ne 0 ]; then |
| echo "$0: error ${rc}" |
| exit ${rc} |
| fi |