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|
REQUIRE_IMAGE_METADATA=1
RAMFS_COPY_BIN='fwtool'
# Full system upgrade including preloader for MediaTek SoCs on eMMC or SD
mtk_mmc_full_upgrade() {
local diskdev partdev diff oldrecovery
if grep -q root=/dev/mmcblk0p2 /proc/cmdline; then
oldrecovery=1
else
oldrecovery=2
fi
export_bootdevice && export_partdevice diskdev 0 || {
echo "Unable to determine upgrade device"
return 1
}
#Keep the persistent random mac address (if it exists)
mkdir -p /tmp/recovery
export_partdevice recoverydev $oldrecovery
if mount -o rw,noatime "/dev/$recoverydev" -tvfat /tmp/recovery; then
[ -f "/tmp/recovery/mac_addr" ] && cp /tmp/recovery/mac_addr /tmp/
umount /tmp/recovery
fi
sync
if [ "$SAVE_PARTITIONS" = "1" ]; then
get_partitions "/dev/$diskdev" bootdisk
#extract the boot sector from the image
get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b
get_partitions /tmp/image.bs image
#compare tables
diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
else
diff=1
fi
if [ -n "$diff" ]; then
get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync
# Separate removal and addition is necessary; otherwise, partition 1
# will be missing if it overlaps with the old partition 2
partx -d - "/dev/$diskdev"
partx -a - "/dev/$diskdev"
else
# iterate over each partition from the image and write it to the boot disk
while read part start size; do
part="$(($part - 2))"
if export_partdevice partdev $part; then
echo "Writing image to /dev/$partdev..."
get_image "$@" | dd of="/dev/$partdev" ibs="512" obs=1M skip="$start" count="$size" conv=fsync
else
echo "Unable to find partition $part device, skipped."
fi
done < /tmp/partmap.image
#copy partition uuid
echo "Writing new UUID to /dev/$diskdev..."
get_image "$@" | dd of="/dev/$diskdev" bs=1 skip=440 count=4 seek=440 conv=fsync
fi
export_partdevice recoverydev 2
if mount -o rw,noatime "/dev/$recoverydev" -t vfat /tmp/recovery; then
[ -f "/tmp/mac_addr" ] && cp /tmp/mac_addr /tmp/recovery
if [ "$diskdev" = "mmcblk0" -a -r /tmp/recovery/eMMCboot.bin ]; then
echo 0 > /sys/block/mmcblk0boot0/force_ro
dd if=/tmp/recovery/eMMCboot.bin of=/dev/mmcblk0boot0 conv=fsync
sync
echo 1 > /sys/block/mmcblk0boot0/force_ro
fi
sync
umount /tmp/recovery
fi
}
platform_do_upgrade() {
local board=$(board_name)
case "$board" in
bananapi,bpi-r2)
export_bootdevice
export_partdevice fitpart 3
[ "$fitpart" ] || return 1
EMMC_KERN_DEV="/dev/$fitpart"
emmc_do_upgrade "$1"
;;
unielec,u7623-02-emmc-512m)
local magic="$(get_magic_long "$1")"
if [ "$magic" = "53444d4d" ]; then
mtk_mmc_full_upgrade "$1"
else # Old partial image starting with uImage
# Keep the persistent random mac address (if it exists)
recoverydev=mmcblk0p1
mkdir -p /tmp/recovery
mount -o rw,noatime /dev/$recoverydev /tmp/recovery
[ -f "/tmp/recovery/mac_addr" ] && \
mv -f /tmp/recovery/mac_addr /tmp/
umount /tmp/recovery
# 1310720 is the offset in bytes from the start of eMMC and to
# the location of the kernel (2560 512 byte sectors)
get_image "$1" | dd of=/dev/mmcblk0 bs=1310720 seek=1 conv=fsync
mount -o rw,noatime /dev/$recoverydev /tmp/recovery
[ -f "/tmp/mac_addr" ] && mv -f /tmp/mac_addr /tmp/recovery
sync
umount /tmp/recovery
fi
;;
*)
default_do_upgrade "$1"
;;
esac
}
PART_NAME=firmware
platform_check_image() {
local board=$(board_name)
local magic="$(get_magic_long "$1")"
local diskdev partdev diff
[ "$#" -gt 1 ] && return 1
case "$board" in
bananapi,bpi-r2)
[ "$magic" != "d00dfeed" ] && {
echo "Invalid image type."
return 1
}
;;
unielec,u7623-02-emmc-512m)
# Can always upgrade to the new-style full image
[ "$magic" = "53444d4d" ] && return 0
# Legacy uImage directly at 0xA00 on the eMMC.
[ "$magic" != "27051956" ] && {
echo "Invalid image type."
return 1
}
rootpart=$(cat /proc/cmdline)
rootpart="${rootpart##*root=}"
rootpart="${rootpart%% *}"
[ "$rootpart" != "/dev/mmcblk0p2" ] && {
echo "Cannot downgrade to legacy image."
return 1
}
return 0
;;
*)
echo "Sysupgrade is not supported on your board yet."
return 1
;;
esac
return 0
}
platform_copy_config() {
case "$(board_name)" in
bananapi,bpi-r2)
emmc_copy_config
;;
unielec,u7623-02-emmc-512m)
# platform_do_upgrade() will have set $recoverydev
if [ -n "$recoverydev" ]; then
mkdir -p /tmp/recovery
mount -o rw,noatime "/dev/$recoverydev" -t vfat /tmp/recovery
cp -af "$UPGRADE_BACKUP" "/tmp/recovery/$BACKUP_FILE"
sync
umount /tmp/recovery
fi
;;
esac
}
|