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authorRafał Miłecki <zajec5@gmail.com>2016-06-11 01:50:34 +0200
committerRafał Miłecki <zajec5@gmail.com>2016-06-20 08:02:32 +0200
commit776b24d9aa7dcc1dfa1ecb9c9d70764b46b0c46f (patch)
tree3b7f8333004e3e190c096d34924c8361a381935d /target/linux/bcm53xx/base-files
parent7e08f2ccbdb717c502810085457b824d0f2d067b (diff)
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bcm53xx: properly support sysupgrade using Seama on NAND devices
It updates kernel and then formats UBI without loosing erase counters. Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Diffstat (limited to 'target/linux/bcm53xx/base-files')
-rw-r--r--target/linux/bcm53xx/base-files/lib/upgrade/platform.sh49
1 files changed, 48 insertions, 1 deletions
diff --git a/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh b/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh
index d613595..f0a48dd 100644
--- a/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh
@@ -197,6 +197,53 @@ platform_pre_upgrade_trx() {
nand_do_upgrade /tmp/root.ubi
}
+platform_pre_upgrade_seama() {
+ local dir="/tmp/sysupgrade-bcm53xx"
+ local seama="$1"
+ local tmp
+
+ # Extract Seama entity from Seama seal
+ rm -fR $dir
+ mkdir -p $dir
+ oseama extract "$seama" \
+ -e 0 \
+ -o $dir/seama.entity
+ [ $? -ne 0 ] && {
+ echo "Failed to extract Seama entity."
+ return
+ }
+ local entity_size=$(wc -c $dir/seama.entity | cut -d ' ' -f 1)
+
+ local ubi_offset=0
+ tmp=0
+ while [ 1 ]; do
+ [ $tmp -ge $entity_size ] && break
+ [ "$(dd if=$dir/seama.entity skip=$tmp bs=1 count=4 2>/dev/null)" = "UBI#" ] && {
+ ubi_offset=$tmp
+ break
+ }
+ tmp=$(($tmp + 131072))
+ done
+ [ $ubi_offset -eq 0 ] && {
+ echo "Failed to find UBI in Seama entity."
+ return
+ }
+
+ local ubi_length=0
+ while [ "$(dd if=$dir/seama.entity skip=$(($ubi_offset + $ubi_length)) bs=1 count=4 2>/dev/null)" = "UBI#" ]; do
+ ubi_length=$(($ubi_length + 131072))
+ done
+
+ dd if=$dir/seama.entity of=$dir/kernel.seama bs=131072 count=$(($ubi_offset / 131072)) 2>/dev/null
+ dd if=$dir/seama.entity of=$dir/root.ubi bs=131072 skip=$(($ubi_offset / 131072)) count=$(($ubi_length / 131072)) 2>/dev/null
+
+ # Flash
+ local kernel_size=$(sed -n 's/mtd[0-9]*: \([0-9a-f]*\).*"\(kernel\|linux\)".*/\1/p' /proc/mtd)
+ mtd write $dir/kernel.seama firmware
+ mtd ${kernel_size:+-c 0x$kernel_size} fixseama firmware
+ nand_do_upgrade $dir/root.ubi
+}
+
platform_pre_upgrade() {
export RAMFS_COPY_BIN="${RAMFS_COPY_BIN} /usr/bin/oseama /bin/sed"
@@ -208,7 +255,7 @@ platform_pre_upgrade() {
case "$file_type" in
"chk") platform_pre_upgrade_trx "$1" $((0x$(get_magic_long_at "$1" 4)));;
"cybertan") platform_pre_upgrade_trx "$1" 32;;
- "seama") return;;
+ "seama") platform_pre_upgrade_seama "$1";;
"trx") platform_pre_upgrade_trx "$1";;
esac
}