1 # Copyright (C) 2014 OpenWrt.org
6 # 'kernel' partition or UBI volume 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' UBI volume 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
="$2"
120 local rootfs_data_max
="$(fw_printenv -n rootfs_data_max 2>/dev/null)"
121 [ -n "$rootfs_data_max" ] && rootfs_data_max
=$
((rootfs_data_max
))
123 local kernel_length
="$3"
124 local has_env
="${4:-0}"
126 [ -n "$rootfs_length" -o -n "$kernel_length" ] ||
return 1
128 local mtdnum
="$( find_mtd_index "$CI_UBIPART" )"
129 if [ ! "$mtdnum" ]; then
130 echo "cannot find ubi mtd partition $CI_UBIPART"
134 local ubidev
="$( nand_find_ubi "$CI_UBIPART" )"
135 if [ ! "$ubidev" ]; then
136 ubiattach
-m "$mtdnum"
138 ubidev
="$( nand_find_ubi "$CI_UBIPART" )"
141 if [ ! "$ubidev" ]; then
142 ubiformat
/dev
/mtd
$mtdnum -y
143 ubiattach
-m "$mtdnum"
145 ubidev
="$( nand_find_ubi "$CI_UBIPART" )"
146 [ "$has_env" -gt 0 ] && {
147 ubimkvol
/dev
/$ubidev -n 0 -N ubootenv
-s 1MiB
148 ubimkvol
/dev
/$ubidev -n 1 -N ubootenv2
-s 1MiB
152 local kern_ubivol
="$( nand_find_volume $ubidev $CI_KERNPART )"
153 local root_ubivol
="$( nand_find_volume $ubidev $CI_ROOTPART )"
154 local data_ubivol
="$( nand_find_volume $ubidev rootfs_data )"
156 local ubiblk ubiblkvol
157 for ubiblk
in /dev
/ubiblock
*_?
; do
158 [ -e "$ubiblk" ] ||
continue
159 echo "removing ubiblock${ubiblk:13}"
160 ubiblkvol
=ubi
${ubiblk:13}
161 if ! ubiblock
-r /dev
/$ubiblkvol; then
162 echo "cannot remove $ubiblk"
168 [ "$kern_ubivol" ] && ubirmvol
/dev
/$ubidev -N $CI_KERNPART || true
169 [ "$root_ubivol" -a "$root_ubivol" != "$kern_ubivol" ] && ubirmvol
/dev
/$ubidev -N $CI_ROOTPART || true
170 [ "$data_ubivol" ] && ubirmvol
/dev
/$ubidev -N rootfs_data || true
173 if [ -n "$kernel_length" ]; then
174 if ! ubimkvol
/dev
/$ubidev -N $CI_KERNPART -s $kernel_length; then
175 echo "cannot create kernel volume"
181 if [ -n "$rootfs_length" ]; then
182 local rootfs_size_param
183 if [ "$rootfs_type" = "ubifs" ]; then
184 rootfs_size_param
="-m"
186 rootfs_size_param
="-s $rootfs_length"
188 if ! ubimkvol
/dev
/$ubidev -N $CI_ROOTPART $rootfs_size_param; then
189 echo "cannot create rootfs volume"
194 # create rootfs_data for non-ubifs rootfs
195 if [ "$rootfs_type" != "ubifs" ]; then
196 local availeb
=$
(cat /sys
/devices
/virtual
/ubi
/$ubidev/avail_eraseblocks
)
197 local ebsize
=$
(cat /sys
/devices
/virtual
/ubi
/$ubidev/eraseblock_size
)
198 local avail_size
=$
((availeb
* ebsize
))
199 local rootfs_data_size_param
="-m"
200 if [ -n "$rootfs_data_max" ] &&
201 [ "$rootfs_data_max" != "0" ] &&
202 [ "$rootfs_data_max" -le "$avail_size" ]; then
203 rootfs_data_size_param
="-s $rootfs_data_max"
205 if ! ubimkvol
/dev
/$ubidev -N rootfs_data
$rootfs_data_size_param; then
206 echo "cannot initialize rootfs_data volume"
214 nand_do_upgrade_success
() {
215 local conf_tar
="/tmp/sysupgrade.tgz"
218 [ -f "$conf_tar" ] && nand_restore_config
"$conf_tar"
219 echo "sysupgrade successful"
224 # Flash the UBI image to MTD partition
225 nand_upgrade_ubinized
() {
227 local mtdnum
="$(find_mtd_index "$CI_UBIPART")"
231 mtdnum
="$(find_mtd_index "$CI_UBIPART")"
234 if [ ! "$mtdnum" ]; then
235 echo "cannot find mtd device $CI_UBIPART"
240 local mtddev
="/dev/mtd${mtdnum}"
241 ubidetach
-p "${mtddev}" || true
243 ubiformat
"${mtddev}" -y -f "${ubi_file}"
244 ubiattach
-p "${mtddev}"
245 nand_do_upgrade_success
248 # Write the UBIFS image to UBI volume
249 nand_upgrade_ubifs
() {
250 local rootfs_length
=$
( (cat $1 |
wc -c) 2> /dev
/null
)
252 nand_upgrade_prepare_ubi
"$rootfs_length" "ubifs" "" ""
254 local ubidev
="$( nand_find_ubi "$CI_UBIPART" )"
255 local root_ubivol
="$(nand_find_volume $ubidev $CI_ROOTPART)"
256 ubiupdatevol
/dev
/$root_ubivol -s $rootfs_length $1
258 nand_do_upgrade_success
263 local fit_length
="$(wc -c < "$fit_file")"
265 nand_upgrade_prepare_ubi
"" "" "$fit_length" "1"
267 local fit_ubidev
="$(nand_find_ubi "$CI_UBIPART")"
268 local fit_ubivol
="$(nand_find_volume $fit_ubidev "$CI_KERNPART")"
269 ubiupdatevol
/dev
/$fit_ubivol -s $fit_length $fit_file
271 nand_do_upgrade_success
276 local kernel_mtd
="$(find_mtd_index $CI_KERNPART)"
278 local board_dir
=$
(tar tf
"$tar_file" |
grep -m 1 '^sysupgrade-.*/$')
279 board_dir
=${board_dir%/}
281 kernel_length
=$
( (tar xf
"$tar_file" ${board_dir}/kernel
-O |
wc -c) 2> /dev
/null
)
286 tar tf
"$tar_file" ${board_dir}/root
1>/dev
/null
2>/dev
/null
&& has_rootfs
=1
287 [ "$has_rootfs" = "1" ] && {
288 rootfs_length
=$
( (tar xf
"$tar_file" ${board_dir}/root
-O |
wc -c) 2> /dev
/null
)
289 rootfs_type
="$(identify_tar "$tar_file" ${board_dir}/root)"
295 [ "$kernel_length" != 0 -a -n "$kernel_mtd" ] && {
296 tar xf
"$tar_file" ${board_dir}/kernel
-O | mtd
write - $CI_KERNPART
298 [ "$kernel_length" = 0 -o ! -z "$kernel_mtd" ] && has_kernel
=
299 [ "$CI_KERNPART" = "none" ] && has_kernel
=
301 nand_upgrade_prepare_ubi
"$rootfs_length" "$rootfs_type" "${has_kernel:+$kernel_length}" "$has_env"
303 local ubidev
="$( nand_find_ubi "$CI_UBIPART" )"
304 [ "$has_kernel" = "1" ] && {
305 local kern_ubivol
="$( nand_find_volume $ubidev $CI_KERNPART )"
306 tar xf
"$tar_file" ${board_dir}/kernel
-O | \
307 ubiupdatevol
/dev
/$kern_ubivol -s $kernel_length -
310 [ "$has_rootfs" = "1" ] && {
311 local root_ubivol
="$( nand_find_volume $ubidev $CI_ROOTPART )"
312 tar xf
"$tar_file" ${board_dir}/root
-O | \
313 ubiupdatevol
/dev
/$root_ubivol -s $rootfs_length -
315 nand_do_upgrade_success
318 # Recognize type of passed file and start the upgrade process
320 local file_type
=$
(identify
$1)
322 [ ! "$(find_mtd_index "$CI_UBIPART")" ] && CI_UBIPART
="rootfs"
325 "fit") nand_upgrade_fit
$1;;
326 "ubi") nand_upgrade_ubinized
$1;;
327 "ubifs") nand_upgrade_ubifs
$1;;
328 *) nand_upgrade_tar
$1;;
332 # Check if passed file is a valid one for NAND sysupgrade. Currently it accepts
334 # 1) UBI - should contain an ubinized image, header is checked for the proper
336 # 2) UBIFS - should contain UBIFS partition that will replace "rootfs" volume,
337 # header is checked for the proper MAGIC
338 # 3) TAR - archive has to include "sysupgrade-BOARD" directory with a non-empty
339 # "CONTROL" file (at this point its content isn't verified)
341 # You usually want to call this function in platform_check_image.
343 # $(1): board name, used in case of passing TAR file
344 # $(2): file to be checked
345 nand_do_platform_check
() {
346 local board_name
="$1"
348 local control_length
=$
( (tar xf
$tar_file sysupgrade-
$board_name/CONTROL
-O |
wc -c) 2> /dev
/null
)
349 local file_type
="$(identify $2)"
351 [ "$control_length" = 0 -a "$file_type" != "ubi" -a "$file_type" != "ubifs" -a "$file_type" != "fit" ] && {
352 echo "Invalid sysupgrade file."