diff options
Diffstat (limited to 'target/linux/mediatek/mt7622/base-files/lib/upgrade/buffalo.sh')
| -rw-r--r-- | target/linux/mediatek/mt7622/base-files/lib/upgrade/buffalo.sh | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/target/linux/mediatek/mt7622/base-files/lib/upgrade/buffalo.sh b/target/linux/mediatek/mt7622/base-files/lib/upgrade/buffalo.sh new file mode 100644 index 0000000000..844cc4ed95 --- /dev/null +++ b/target/linux/mediatek/mt7622/base-files/lib/upgrade/buffalo.sh @@ -0,0 +1,126 @@ +# ======== dev note ======== +# for following buffalo MT7622 devices: +# +# - WSR-2533DHP2 (trx magic: "DHP2") +# - WSR-2533DHP3 (trx magic: "DHP3") +# - WSR-3200AX4S (trx magic: "DHP3") +# +# sysupgrade-tar image: +# +# This is for normal upgrading for OpenWrt. +# use nand_do_upgrade with CI_KERNPART="firmware" +# +# - if the size of new kernel is not equal with the current kernel's +# -> block upgrade and print a message about using TRX + UBI +# formatted image +# (should be flashed the new ubi contains rootfs + rootfs_data +# with the offset (=new padded kernel's end) if this case? But +# it maybe too hard for writing scripts...) +# +# TRX + UBI formatted image: +# +# This is for upgrading if the new kernel is larger than the +# current kernel. +# +# ex: +# - stock firmware is installed in the flash and booted with +# OpenWrt initramfs image +# - kernel partition is increased from 4MiB in OpenWrt in the +# future +# +# packing TRX + UBI formatted image by tar is needed for image validation +# with the metadata in the future? +# ====== dev note end ====== +# +# The mtd partitions "firmware" and "Kernel2" on NAND flash are os-image +# partitions. These partitions are called as "Image1/Image2" in U-Boot +# on WSR-2533DHP2, and they are checked conditions when booting. +# "Image1" is always used for booting. +# +# == U-Boot Behaviors == +# - "Image1"/"Image2" images are good, images are different or +# "Image2" image is broken +# -> writes os-image to "Image2" from "Image1" +# +# - "Image1" image is broken +# -> writes os-image to "Image1" from "Image2" +# +# - "Image1"/"Image2" images are broken +# -> fall to U-Boot command line + +buffalo_check_image() { + local board="$1" + local boardname="$(echo $board | tr ',' '_')" + local magic="$2" + local fw_image="$3" + + # return error state if TRX + UBI formatted image specified + # to notify about configurations + if [ "$magic" = "44485032" -o "$magic" = "44485033" ]; then + echo "Your configurations won't be saved if factory-uboot.bin image specified." + echo "But if you want to upgrade, please execute sysupgrade with \"-F\" option." + return 1 + fi + + # check if valid tar file specifed + if ! tar tf "$fw_image" &>/dev/null; then + echo "Specified file is not a tar archive: $fw_image" + return 1 + fi + + local control_len=$( (tar xf $fw_image sysupgrade-$boardname/CONTROL -O | wc -c) 2> /dev/null) + + # check if valid sysupgrade tar archive + if [ "$control_len" = "0" ]; then + echo "Invalid sysupgrade file: $fw_image" + return 1 + fi + + local kern_part_len=$(grep "\"linux\"" /proc/mtd | sed "s/mtd[0-9]*:[ \t]*\([^ \t]*\).*/\1/") + [ -z "$kern_part_len" ] && { + echo "Unable to get \"linux\" partition size" + return 1 + } + kern_part_len=$((0x$kern_part_len)) + + # this also checks if the sysupgrade image is for correct models + local kern_bin_len=$( (tar xf $fw_image sysupgrade-${boardname}/kernel -O | wc -c) 2> /dev/null) + if [ -z "$kern_bin_len" ]; then + echo "Failed to get new kernel size, is valid sysupgrade image specified for the device?" + return 1 + fi + + # kernel binary has a trx header (len: 28 (0x1c)) + kern_bin_len=$((kern_bin_len - 28)) + + if [ "$kern_bin_len" != "$kern_part_len" ]; then + echo -n "The length of new kernel is invalid for current " + echo "\"linux\" partition, please use factory-uboot.bin image." + echo "\"linux\" partition: $kern_part_len, new kernel: $kern_bin_len" + return 1 + fi +} + +# for TRX + UBI formatted image +buffalo_upgrade_ubinized() { + sync + echo 3 > /proc/sys/vm/drop_caches + + local mtdnum="$( find_mtd_index "ubi" )" + # if no "ubi", don't return error for the purpose of recovery + # ex: recovery after accidental erasing "firmware" partition + if [ ! "$mtdnum" ]; then + echo "cannot find ubi mtd partition \"ubi\", skip detachment" + else + ubidetach -m "$mtdnum" + fi + + # erase all data in "firmware" + mtd erase "${PART_NAME}" + # write TRX + UBI formatted image to "firmware" + get_image "$1" | mtd $MTD_ARGS write - "${PART_NAME:-firmware}" + if [ $? -ne 0 ]; then + echo "Failed to write the specified image." + exit 1 + fi +} |