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}"
13 # 'rootfs' partition on NAND contains the rootfs
14 CI_ROOTPART="${CI_ROOTPART:-rootfs}"
18 local dev="/dev/$(basename $dir)"
20 [ -e "$dev" ] && return 0
22 local devid="$(cat $dir/dev)"
23 local major="${devid%%:*}"
24 local minor="${devid##*:}"
25 mknod "$dev" c $major $minor
29 local ubidevdir ubivoldir
30 ubidevdir="/sys/devices/virtual/ubi/$1"
31 [ ! -d "$ubidevdir" ] && return 1
32 for ubivoldir in $ubidevdir/${1}_*; do
33 [ ! -d "$ubivoldir" ] && continue
34 if [ "$( cat $ubivoldir/name )" = "$2" ]; then
36 ubi_mknod "$ubivoldir"
43 local ubidevdir ubidev mtdnum
44 mtdnum="$( find_mtd_index $1 )"
45 [ ! "$mtdnum" ] && return 1
46 for ubidevdir in /sys/devices/virtual/ubi/ubi*; do
47 [ ! -d "$ubidevdir" ] && continue
48 cmtdnum="$( cat $ubidevdir/mtd_num )"
49 [ ! "$mtdnum" ] && continue
50 if [ "$mtdnum" = "$cmtdnum" ]; then
51 ubidev=$( basename $ubidevdir )
52 ubi_mknod "$ubidevdir"
59 nand_get_magic_long() {
60 dd if="$1" skip=$2 bs=4 count=1 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
63 get_magic_long_tar() {
64 ( tar xf $1 $2 -O | dd bs=4 count=1 | hexdump -v -n 4 -e '1/1 "%02x"') 2> /dev/null
93 identify_magic $(nand_get_magic_long "$1" "${2:-0}")
97 identify_magic $(get_magic_long_tar "$1" "$2")
100 nand_restore_config() {
102 local ubidev=$( nand_find_ubi $CI_UBIPART )
103 local ubivol="$( nand_find_volume $ubidev rootfs_data )"
105 ubivol="$( nand_find_volume $ubidev $CI_ROOTPART )"
107 if ! mount -t ubifs /dev/$ubivol /tmp/new_root; then
108 echo "mounting ubifs $ubivol failed"
112 mv "$1" "/tmp/new_root/sysupgrade.tgz"
118 nand_upgrade_prepare_ubi() {
119 local rootfs_length="$1"
120 local rootfs_type="$2"
121 local has_kernel="${3:-0}"
122 local has_env="${4:-0}"
124 local mtdnum="$( find_mtd_index "$CI_UBIPART" )"
125 if [ ! "$mtdnum" ]; then
126 echo "cannot find ubi mtd partition $CI_UBIPART"
130 local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
131 if [ ! "$ubidev" ]; then
132 ubiattach -m "$mtdnum"
134 ubidev="$( nand_find_ubi "$CI_UBIPART" )"
137 if [ ! "$ubidev" ]; then
138 ubiformat /dev/mtd$mtdnum -y
139 ubiattach -m "$mtdnum"
141 ubidev="$( nand_find_ubi "$CI_UBIPART" )"
142 [ "$has_env" -gt 0 ] && {
143 ubimkvol /dev/$ubidev -n 0 -N ubootenv -s 1MiB
144 ubimkvol /dev/$ubidev -n 1 -N ubootenv2 -s 1MiB
148 local kern_ubivol="$( nand_find_volume $ubidev $CI_KERNPART )"
149 local root_ubivol="$( nand_find_volume $ubidev $CI_ROOTPART )"
150 local data_ubivol="$( nand_find_volume $ubidev rootfs_data )"
152 # remove ubiblock device of rootfs
153 local root_ubiblk="ubiblock${root_ubivol:3}"
154 if [ "$root_ubivol" -a -e "/dev/$root_ubiblk" ]; then
155 echo "removing $root_ubiblk"
156 if ! ubiblock -r /dev/$root_ubivol; then
157 echo "cannot remove $root_ubiblk"
163 [ "$kern_ubivol" ] && ubirmvol /dev/$ubidev -N $CI_KERNPART || true
164 [ "$root_ubivol" ] && ubirmvol /dev/$ubidev -N $CI_ROOTPART || true
165 [ "$data_ubivol" ] && ubirmvol /dev/$ubidev -N rootfs_data || true
168 if [ "$has_kernel" = "1" ]; then
169 if ! ubimkvol /dev/$ubidev -N $CI_KERNPART -s $kernel_length; then
170 echo "cannot create kernel volume"
176 local root_size_param
177 if [ "$rootfs_type" = "ubifs" ]; then
180 root_size_param="-s $rootfs_length"
182 if ! ubimkvol /dev/$ubidev -N $CI_ROOTPART $root_size_param; then
183 echo "cannot create rootfs volume"
187 # create rootfs_data for non-ubifs rootfs
188 if [ "$rootfs_type" != "ubifs" ]; then
189 if ! ubimkvol /dev/$ubidev -N rootfs_data -m; then
190 echo "cannot initialize rootfs_data volume"
198 nand_do_upgrade_success() {
199 local conf_tar="/tmp/sysupgrade.tgz"
202 [ -f "$conf_tar" ] && nand_restore_config "$conf_tar"
203 echo "sysupgrade successful"
208 # Flash the UBI image to MTD partition
209 nand_upgrade_ubinized() {
211 local mtdnum="$(find_mtd_index "$CI_UBIPART")"
215 mtdnum="$(find_mtd_index "$CI_UBIPART")"
218 if [ ! "$mtdnum" ]; then
219 echo "cannot find mtd device $CI_UBIPART"
224 local mtddev="/dev/mtd${mtdnum}"
225 ubidetach -p "${mtddev}" || true
227 ubiformat "${mtddev}" -y -f "${ubi_file}"
228 ubiattach -p "${mtddev}"
229 nand_do_upgrade_success
232 # Write the UBIFS image to UBI volume
233 nand_upgrade_ubifs() {
234 local rootfs_length=`(cat $1 | wc -c) 2> /dev/null`
236 nand_upgrade_prepare_ubi "$rootfs_length" "ubifs" "0" "0"
238 local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
239 local root_ubivol="$(nand_find_volume $ubidev $CI_ROOTPART)"
240 ubiupdatevol /dev/$root_ubivol -s $rootfs_length $1
242 nand_do_upgrade_success
247 local kernel_mtd="$(find_mtd_index $CI_KERNPART)"
249 local board_dir=$(tar tf $tar_file | grep -m 1 '^sysupgrade-.*/$')
250 board_dir=${board_dir%/}
252 local kernel_length=`(tar xf $tar_file ${board_dir}/kernel -O | wc -c) 2> /dev/null`
253 local rootfs_length=`(tar xf $tar_file ${board_dir}/root -O | wc -c) 2> /dev/null`
255 local rootfs_type="$(identify_tar "$tar_file" ${board_dir}/root)"
260 [ "$kernel_length" != 0 -a -n "$kernel_mtd" ] && {
261 tar xf $tar_file ${board_dir}/kernel -O | mtd write - $CI_KERNPART
263 [ "$kernel_length" = 0 -o ! -z "$kernel_mtd" ] && has_kernel=0
265 nand_upgrade_prepare_ubi "$rootfs_length" "$rootfs_type" "$has_kernel" "$has_env"
267 local ubidev="$( nand_find_ubi "$CI_UBIPART" )"
268 [ "$has_kernel" = "1" ] && {
269 local kern_ubivol="$(nand_find_volume $ubidev $CI_KERNPART)"
270 tar xf $tar_file ${board_dir}/kernel -O | \
271 ubiupdatevol /dev/$kern_ubivol -s $kernel_length -
274 local root_ubivol="$(nand_find_volume $ubidev $CI_ROOTPART)"
275 tar xf $tar_file ${board_dir}/root -O | \
276 ubiupdatevol /dev/$root_ubivol -s $rootfs_length -
278 nand_do_upgrade_success
281 # Recognize type of passed file and start the upgrade process
283 local file_type=$(identify $1)
285 if type 'platform_nand_pre_upgrade' >/dev/null 2>/dev/null; then
286 platform_nand_pre_upgrade "$1"
289 [ ! "$(find_mtd_index "$CI_UBIPART")" ] && CI_UBIPART="rootfs"
292 "ubi") nand_upgrade_ubinized $1;;
293 "ubifs") nand_upgrade_ubifs $1;;
294 *) nand_upgrade_tar $1;;
298 # Check if passed file is a valid one for NAND sysupgrade. Currently it accepts
300 # 1) UBI - should contain an ubinized image, header is checked for the proper
302 # 2) UBIFS - should contain UBIFS partition that will replace "rootfs" volume,
303 # header is checked for the proper MAGIC
304 # 3) TAR - archive has to include "sysupgrade-BOARD" directory with a non-empty
305 # "CONTROL" file (at this point its content isn't verified)
307 # You usually want to call this function in platform_check_image.
309 # $(1): board name, used in case of passing TAR file
310 # $(2): file to be checked
311 nand_do_platform_check() {
312 local board_name="$1"
314 local control_length=`(tar xf $tar_file sysupgrade-$board_name/CONTROL -O | wc -c) 2> /dev/null`
315 local file_type="$(identify $2)"
317 [ "$control_length" = 0 -a "$file_type" != "ubi" -a "$file_type" != "ubifs" ] && {
318 echo "Invalid sysupgrade file."