e6f58df4f5aa016fc191b3858fdc5cd05d698810
1 # Copyright (C) 2014 OpenWrt.org
6 # 'kernel' partition on NAND contains the kernel
7 CI_KERNPART
="${CI_KERNPART:-kernel}"
9 # 'ubi' partition on NAND contains UBI
10 CI_UBIPART
="${CI_UBIPART:-ubi}"
12 # 'rootfs' partition on NAND contains the rootfs
13 CI_ROOTPART
="${CI_ROOTPART:-rootfs}"
17 local dev
="/dev/$(basename $dir)"
19 [ -e "$dev" ] && return 0
21 local devid
="$(cat $dir/dev)"
22 local major
="${devid%%:*}"
23 local minor
="${devid##*:}"
24 mknod
"$dev" c
$major $minor
28 local ubidevdir ubivoldir
29 ubidevdir
="/sys/devices/virtual/ubi/$1"
30 [ ! -d "$ubidevdir" ] && return 1
31 for ubivoldir
in $ubidevdir/${1}_
*; do
32 [ ! -d "$ubivoldir" ] && continue
33 if [ "$( cat $ubivoldir/name )" = "$2" ]; then
35 ubi_mknod
"$ubivoldir"
42 local ubidevdir ubidev mtdnum
43 mtdnum
="$( find_mtd_index $1 )"
44 [ ! "$mtdnum" ] && return 1
45 for ubidevdir
in /sys
/devices
/virtual
/ubi
/ubi
*; do
46 [ ! -d "$ubidevdir" ] && continue
47 cmtdnum
="$( cat $ubidevdir/mtd_num )"
48 [ ! "$mtdnum" ] && continue
49 if [ "$mtdnum" = "$cmtdnum" ]; then
50 ubidev
=$
( basename $ubidevdir )
51 ubi_mknod
"$ubidevdir"
58 nand_get_magic_long
() {
59 dd if="$1" skip
=$2 bs
=4 count
=1 2>/dev
/null |
hexdump -v -n 4 -e '1/1 "%02x"'
62 get_magic_long_tar
() {
63 ( tar xf
$1 $2 -O |
dd bs
=4 count
=1 |
hexdump -v -n 4 -e '1/1 "%02x"') 2> /dev
/null
92 identify_magic $
(nand_get_magic_long
"$1" "${2:-0}")
96 identify_magic $
(get_magic_long_tar
"$1" "$2")
99 nand_restore_config
() {
101 local ubidev
=$
( nand_find_ubi
$CI_UBIPART )
102 local ubivol
="$( nand_find_volume $ubidev rootfs_data )"
104 ubivol
="$( nand_find_volume $ubidev $CI_ROOTPART )"
106 if ! mount
-t ubifs
/dev
/$ubivol /tmp
/new_root
; then
107 echo "mounting ubifs $ubivol failed"
111 mv "$1" "/tmp/new_root/$BACKUP_FILE"
117 nand_upgrade_prepare_ubi
() {
118 local rootfs_length
="$1"
119 local rootfs_type
="$2"
120 local has_kernel
="${3:-0}"
121 local has_env
="${4:-0}"
123 local mtdnum
="$( find_mtd_index "$CI_UBIPART" )"
124 if [ ! "$mtdnum" ]; then
125 echo "cannot find ubi mtd partition $CI_UBIPART"
129 local ubidev
="$( nand_find_ubi "$CI_UBIPART" )"
130 if [ ! "$ubidev" ]; then
131 ubiattach
-m "$mtdnum"
133 ubidev
="$( nand_find_ubi "$CI_UBIPART" )"
136 if [ ! "$ubidev" ]; then
137 ubiformat
/dev
/mtd
$mtdnum -y
138 ubiattach
-m "$mtdnum"
140 ubidev
="$( nand_find_ubi "$CI_UBIPART" )"
141 [ "$has_env" -gt 0 ] && {
142 ubimkvol
/dev
/$ubidev -n 0 -N ubootenv
-s 1MiB
143 ubimkvol
/dev
/$ubidev -n 1 -N ubootenv2
-s 1MiB
147 local kern_ubivol
="$( nand_find_volume $ubidev $CI_KERNPART )"
148 local root_ubivol
="$( nand_find_volume $ubidev $CI_ROOTPART )"
149 local data_ubivol
="$( nand_find_volume $ubidev rootfs_data )"
151 # remove ubiblock device of rootfs
152 local root_ubiblk
="ubiblock${root_ubivol:3}"
153 if [ "$root_ubivol" -a -e "/dev/$root_ubiblk" ]; then
154 echo "removing $root_ubiblk"
155 if ! ubiblock
-r /dev
/$root_ubivol; then
156 echo "cannot remove $root_ubiblk"
162 [ "$kern_ubivol" ] && ubirmvol
/dev
/$ubidev -N $CI_KERNPART || true
163 [ "$root_ubivol" ] && ubirmvol
/dev
/$ubidev -N $CI_ROOTPART || true
164 [ "$data_ubivol" ] && ubirmvol
/dev
/$ubidev -N rootfs_data || true
167 if [ "$has_kernel" = "1" ]; then
168 if ! ubimkvol
/dev
/$ubidev -N $CI_KERNPART -s $kernel_length; then
169 echo "cannot create kernel volume"
175 local root_size_param
176 if [ "$rootfs_type" = "ubifs" ]; then
179 root_size_param
="-s $rootfs_length"
181 if ! ubimkvol
/dev
/$ubidev -N $CI_ROOTPART $root_size_param; then
182 echo "cannot create rootfs volume"
186 # create rootfs_data for non-ubifs rootfs
187 if [ "$rootfs_type" != "ubifs" ]; then
188 if ! ubimkvol
/dev
/$ubidev -N rootfs_data
-m; then
189 echo "cannot initialize rootfs_data volume"
197 nand_do_upgrade_success
() {
198 local conf_tar
="/tmp/sysupgrade.tgz"
201 [ -f "$conf_tar" ] && nand_restore_config
"$conf_tar"
202 echo "sysupgrade successful"
207 # Flash the UBI image to MTD partition
208 nand_upgrade_ubinized
() {
210 local mtdnum
="$(find_mtd_index "$CI_UBIPART")"
214 mtdnum
="$(find_mtd_index "$CI_UBIPART")"
217 if [ ! "$mtdnum" ]; then
218 echo "cannot find mtd device $CI_UBIPART"
223 local mtddev
="/dev/mtd${mtdnum}"
224 ubidetach
-p "${mtddev}" || true
226 ubiformat
"${mtddev}" -y -f "${ubi_file}"
227 ubiattach
-p "${mtddev}"
228 nand_do_upgrade_success
231 # Write the UBIFS image to UBI volume
232 nand_upgrade_ubifs
() {
233 local rootfs_length
=$
( (cat $1 |
wc -c) 2> /dev
/null
)
235 nand_upgrade_prepare_ubi
"$rootfs_length" "ubifs" "0" "0"
237 local ubidev
="$( nand_find_ubi "$CI_UBIPART" )"
238 local root_ubivol
="$(nand_find_volume $ubidev $CI_ROOTPART)"
239 ubiupdatevol
/dev
/$root_ubivol -s $rootfs_length $1
241 nand_do_upgrade_success
246 local kernel_mtd
="$(find_mtd_index $CI_KERNPART)"
248 local board_dir
=$
(tar tf
$tar_file |
grep -m 1 '^sysupgrade-.*/$')
249 board_dir
=${board_dir%/}
251 local kernel_length
=$
( (tar xf
$tar_file ${board_dir}/kernel
-O |
wc -c) 2> /dev
/null
)
252 local rootfs_length
=$
( (tar xf
$tar_file ${board_dir}/root
-O |
wc -c) 2> /dev
/null
)
254 local rootfs_type
="$(identify_tar "$tar_file" ${board_dir}/root)"
259 [ "$kernel_length" != 0 -a -n "$kernel_mtd" ] && {
260 tar xf
$tar_file ${board_dir}/kernel
-O | mtd
write - $CI_KERNPART
262 [ "$kernel_length" = 0 -o ! -z "$kernel_mtd" ] && has_kernel
=0
264 nand_upgrade_prepare_ubi
"$rootfs_length" "$rootfs_type" "$has_kernel" "$has_env"
266 local ubidev
="$( nand_find_ubi "$CI_UBIPART" )"
267 [ "$has_kernel" = "1" ] && {
268 local kern_ubivol
="$(nand_find_volume $ubidev $CI_KERNPART)"
269 tar xf
$tar_file ${board_dir}/kernel
-O | \
270 ubiupdatevol
/dev
/$kern_ubivol -s $kernel_length -
273 local root_ubivol
="$(nand_find_volume $ubidev $CI_ROOTPART)"
274 tar xf
$tar_file ${board_dir}/root
-O | \
275 ubiupdatevol
/dev
/$root_ubivol -s $rootfs_length -
277 nand_do_upgrade_success
280 # Recognize type of passed file and start the upgrade process
282 local file_type
=$
(identify
$1)
284 [ ! "$(find_mtd_index "$CI_UBIPART")" ] && CI_UBIPART
="rootfs"
287 "ubi") nand_upgrade_ubinized
$1;;
288 "ubifs") nand_upgrade_ubifs
$1;;
289 *) nand_upgrade_tar
$1;;
293 # Check if passed file is a valid one for NAND sysupgrade. Currently it accepts
295 # 1) UBI - should contain an ubinized image, header is checked for the proper
297 # 2) UBIFS - should contain UBIFS partition that will replace "rootfs" volume,
298 # header is checked for the proper MAGIC
299 # 3) TAR - archive has to include "sysupgrade-BOARD" directory with a non-empty
300 # "CONTROL" file (at this point its content isn't verified)
302 # You usually want to call this function in platform_check_image.
304 # $(1): board name, used in case of passing TAR file
305 # $(2): file to be checked
306 nand_do_platform_check
() {
307 local board_name
="$1"
309 local control_length
=$
( (tar xf
$tar_file sysupgrade-
$board_name/CONTROL
-O |
wc -c) 2> /dev
/null
)
310 local file_type
="$(identify $2)"
312 [ "$control_length" = 0 -a "$file_type" != "ubi" -a "$file_type" != "ubifs" ] && {
313 echo "Invalid sysupgrade file."