2 # Copyright (C) 2014 OpenWrt.org
7 # 'kernel' partition on NAND contains the kernel
8 CI_KERNPART="${CI_KERNPART:-kernel}"
10 # 'ubi' partition on NAND contains UBI
11 CI_UBIPART="${CI_UBIPART:-ubi}"
15 local dev="/dev/$(basename $dir)"
17 [ -e "$dev" ] && return 0
19 local devid="$(cat $dir/dev)"
20 local major="${devid%%:*}"
21 local minor="${devid##*:}"
22 mknod "$dev" c $major $minor
26 local ubidevdir ubivoldir
27 ubidevdir="/sys/devices/virtual/ubi/$1"
28 [ ! -d "$ubidevdir" ] && return 1
29 for ubivoldir in $ubidevdir/${1}_*; do
30 [ ! -d "$ubivoldir" ] && continue
31 if [ "$( cat $ubivoldir/name )" = "$2" ]; then
33 ubi_mknod "$ubivoldir"
40 local ubidevdir ubidev mtdnum
41 mtdnum="$( find_mtd_index $1 )"
42 [ ! "$mtdnum" ] && return 1
43 for ubidevdir in /sys/devices/virtual/ubi/ubi*; do
44 [ ! -d "$ubidevdir" ] && continue
45 cmtdnum="$( cat $ubidevdir/mtd_num )"
46 [ ! "$mtdnum" ] && continue
47 if [ "$mtdnum" = "$cmtdnum" ]; then
48 ubidev=$( basename $ubidevdir )
49 ubi_mknod "$ubidevdir"
56 nand_get_magic_long() {
57 dd if="$1" skip=$2 bs=4 count=1 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
60 get_magic_long_tar() {
61 ( tar xf $1 $2 -O | dd bs=4 count=1 | hexdump -v -n 4 -e '1/1 "%02x"') 2> /dev/null
90 identify_magic $(nand_get_magic_long "$1" "${2:-0}")
94 identify_magic $(get_magic_long_tar "$1" "$2")
97 nand_restore_config() {
99 local ubidev=$( nand_find_ubi $CI_UBIPART )
100 local ubivol="$( nand_find_volume $ubidev rootfs_data )"
102 ubivol="$( nand_find_volume $ubidev rootfs )"
104 if ! mount -t ubifs /dev/$ubivol /tmp/new_root; then
105 echo "mounting ubifs $ubivol failed"
109 mv "$1" "/tmp/new_root/sysupgrade.tgz"
115 nand_upgrade_prepare_ubi() {
116 local rootfs_length="$1"
117 local rootfs_type="$2"
118 local has_kernel="${3:-0}"
119 local has_env="${4:-0}"
121 local mtdnum="$( find_mtd_index "$CI_UBIPART" )"
122 if [ ! "$mtdnum" ]; then
123 echo "cannot find ubi mtd partition $CI_UBIPART"
127 local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
128 if [ ! "$ubidev" ]; then
129 ubiattach -m "$mtdnum"
131 ubidev="$( nand_find_ubi "$CI_UBIPART" )"
134 if [ ! "$ubidev" ]; then
135 ubiformat /dev/mtd$mtdnum -y
136 ubiattach -m "$mtdnum"
138 ubidev="$( nand_find_ubi "$CI_UBIPART" )"
139 [ "$has_env" -gt 0 ] && {
140 ubimkvol /dev/$ubidev -n 0 -N ubootenv -s 1MiB
141 ubimkvol /dev/$ubidev -n 1 -N ubootenv2 -s 1MiB
145 local kern_ubivol="$( nand_find_volume $ubidev $CI_KERNPART )"
146 local root_ubivol="$( nand_find_volume $ubidev rootfs )"
147 local data_ubivol="$( nand_find_volume $ubidev rootfs_data )"
149 # remove ubiblock device of rootfs
150 local root_ubiblk="ubiblock${root_ubivol:3}"
151 if [ "$root_ubivol" -a -e "/dev/$root_ubiblk" ]; then
152 echo "removing $root_ubiblk"
153 if ! ubiblock -r /dev/$root_ubivol; then
154 echo "cannot remove $root_ubiblk"
160 [ "$kern_ubivol" ] && ubirmvol /dev/$ubidev -N $CI_KERNPART || true
161 [ "$root_ubivol" ] && ubirmvol /dev/$ubidev -N rootfs || true
162 [ "$data_ubivol" ] && ubirmvol /dev/$ubidev -N rootfs_data || true
165 if [ "$has_kernel" = "1" ]; then
166 if ! ubimkvol /dev/$ubidev -N $CI_KERNPART -s $kernel_length; then
167 echo "cannot create kernel volume"
173 local root_size_param
174 if [ "$rootfs_type" = "ubifs" ]; then
177 root_size_param="-s $rootfs_length"
179 if ! ubimkvol /dev/$ubidev -N rootfs $root_size_param; then
180 echo "cannot create rootfs volume"
184 # create rootfs_data for non-ubifs rootfs
185 if [ "$rootfs_type" != "ubifs" ]; then
186 if ! ubimkvol /dev/$ubidev -N rootfs_data -m; then
187 echo "cannot initialize rootfs_data volume"
195 nand_do_upgrade_success() {
196 local conf_tar="/tmp/sysupgrade.tgz"
199 [ -f "$conf_tar" ] && nand_restore_config "$conf_tar"
200 echo "sysupgrade successful"
205 # Flash the UBI image to MTD partition
206 nand_upgrade_ubinized() {
208 local mtdnum="$(find_mtd_index "$CI_UBIPART")"
212 mtdnum="$(find_mtd_index "$CI_UBIPART")"
215 if [ ! "$mtdnum" ]; then
216 echo "cannot find mtd device $CI_UBIPART"
221 local mtddev="/dev/mtd${mtdnum}"
222 ubidetach -p "${mtddev}" || true
224 ubiformat "${mtddev}" -y -f "${ubi_file}"
225 ubiattach -p "${mtddev}"
226 nand_do_upgrade_success
229 # Write the UBIFS image to UBI volume
230 nand_upgrade_ubifs() {
231 local rootfs_length=`(cat $1 | wc -c) 2> /dev/null`
233 nand_upgrade_prepare_ubi "$rootfs_length" "ubifs" "0" "0"
235 local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
236 local root_ubivol="$(nand_find_volume $ubidev rootfs)"
237 ubiupdatevol /dev/$root_ubivol -s $rootfs_length $1
239 nand_do_upgrade_success
244 local kernel_mtd="$(find_mtd_index $CI_KERNPART)"
246 local board_dir=$(tar tf $tar_file | grep -m 1 '^sysupgrade-.*/$')
247 board_dir=${board_dir%/}
249 local kernel_length=`(tar xf $tar_file ${board_dir}/kernel -O | wc -c) 2> /dev/null`
250 local rootfs_length=`(tar xf $tar_file ${board_dir}/root -O | wc -c) 2> /dev/null`
252 local rootfs_type="$(identify_tar "$tar_file" ${board_dir}/root)"
257 [ "$kernel_length" != 0 -a -n "$kernel_mtd" ] && {
258 tar xf $tar_file ${board_dir}/kernel -O | mtd write - $CI_KERNPART
260 [ "$kernel_length" = 0 -o ! -z "$kernel_mtd" ] && has_kernel=0
262 nand_upgrade_prepare_ubi "$rootfs_length" "$rootfs_type" "$has_kernel" "$has_env"
264 local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
265 [ "$has_kernel" = "1" ] && {
266 local kern_ubivol="$(nand_find_volume $ubidev $CI_KERNPART)"
267 tar xf $tar_file ${board_dir}/kernel -O | \
268 ubiupdatevol /dev/$kern_ubivol -s $kernel_length -
271 local root_ubivol="$(nand_find_volume $ubidev rootfs)"
272 tar xf $tar_file ${board_dir}/root -O | \
273 ubiupdatevol /dev/$root_ubivol -s $rootfs_length -
275 nand_do_upgrade_success
278 # Recognize type of passed file and start the upgrade process
280 if [ -n "$IS_PRE_UPGRADE" ]; then
281 # Previously, nand_do_upgrade was called from the platform_pre_upgrade
282 # hook; this piece of code handles scripts that haven't been
283 # updated. All scripts should gradually move to call nand_do_upgrade
284 # from platform_do_upgrade instead.
285 export do_upgrade="nand_do_upgrade '$1'"
289 local file_type=$(identify $1)
291 if type 'platform_nand_pre_upgrade' >/dev/null 2>/dev/null; then
292 platform_nand_pre_upgrade "$1"
295 [ ! "$(find_mtd_index "$CI_UBIPART")" ] && CI_UBIPART="rootfs"
298 "ubi") nand_upgrade_ubinized $1;;
299 "ubifs") nand_upgrade_ubifs $1;;
300 *) nand_upgrade_tar $1;;
304 # Check if passed file is a valid one for NAND sysupgrade. Currently it accepts
306 # 1) UBI - should contain an ubinized image, header is checked for the proper
308 # 2) UBIFS - should contain UBIFS partition that will replace "rootfs" volume,
309 # header is checked for the proper MAGIC
310 # 3) TAR - archive has to include "sysupgrade-BOARD" directory with a non-empty
311 # "CONTROL" file (at this point its content isn't verified)
313 # You usually want to call this function in platform_check_image.
315 # $(1): board name, used in case of passing TAR file
316 # $(2): file to be checked
317 nand_do_platform_check() {
318 local board_name="$1"
320 local control_length=`(tar xf $tar_file sysupgrade-$board_name/CONTROL -O | wc -c) 2> /dev/null`
321 local file_type="$(identify $2)"
323 [ "$control_length" = 0 -a "$file_type" != "ubi" -a "$file_type" != "ubifs" ] && {
324 echo "Invalid sysupgrade file."