From af9932c9b7b94417d46ba59439793514e93ba8a6 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Mon, 15 Jun 2020 17:48:19 +0100 Subject: [PATCH] mediatek: Implement sysupgrade support for Banana Pi R2 Based on work by Alexey Loukianov and others. Signed-off-by: David Woodhouse --- target/linux/mediatek/image/Config.in | 2 +- .../base-files/lib/preinit/79_move_config | 20 ++- .../mt7623/base-files/lib/upgrade/platform.sh | 118 ++++++++++++++++-- 3 files changed, 128 insertions(+), 12 deletions(-) diff --git a/target/linux/mediatek/image/Config.in b/target/linux/mediatek/image/Config.in index f32f83c321..0e5449e2f9 100644 --- a/target/linux/mediatek/image/Config.in +++ b/target/linux/mediatek/image/Config.in @@ -1,4 +1,4 @@ config BANANA_PI_BOOT_PARTSIZE int "Boot (SD Card) filesystem partition size (in MiB)" - depends on TARGET_mediatek_mt7623_DEVICE_bpi_bananapi-r2 + depends on TARGET_mediatek_mt7623_DEVICE_bpi_bananapi-r2 || TARGET_DEVICE_mediatek_mt7623_DEVICE_bpi_bananapi-r2 default 32 diff --git a/target/linux/mediatek/mt7623/base-files/lib/preinit/79_move_config b/target/linux/mediatek/mt7623/base-files/lib/preinit/79_move_config index 895240a3bc..cbb6c604c8 100644 --- a/target/linux/mediatek/mt7623/base-files/lib/preinit/79_move_config +++ b/target/linux/mediatek/mt7623/base-files/lib/preinit/79_move_config @@ -2,16 +2,28 @@ . /lib/upgrade/common.sh -RECOVERY_PART=/dev/mmcblk0p1 - move_config() { - if [ -b $RECOVERY_PART ]; then + local partdev partnum + + case $(board_name) in + bananapi,bpi-r2) + partnum=2 + ;; + unielec,u7623-02-emmc-512m) + partnum=1 + ;; + *) + return 1 + ;; + esac + + if export_bootdevice && export_partdevice partdev $partnum; then insmod nls_cp437 insmod nls_iso8859-1 insmod fat insmod vfat mkdir -p /recovery - mount -o rw,noatime $RECOVERY_PART /recovery + mount -o rw,noatime "/dev/$partdev" -t vfat /recovery [ -f "/recovery/$BACKUP_FILE" ] && mv -f "/recovery/$BACKUP_FILE" / umount /recovery fi diff --git a/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh b/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh index 225fec0bca..2b37846456 100755 --- a/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh +++ b/target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh @@ -2,6 +2,75 @@ platform_do_upgrade() { local board=$(board_name) case "$board" in + bananapi,bpi-r2) + local diskdev partdev diff + + 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 2 + 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 addtion 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 + + 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 + ;; + unielec,u7623-02-emmc-512m) #Keep the persisten random mac address (if it exists) mkdir -p /tmp/recovery @@ -30,11 +99,39 @@ 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 "$board" in - bananapi,bpi-r2|\ + bananapi,bpi-r2) + [ "$magic" != "53444d4d" ] && { + echo "Invalid image type." + return 1 + } + export_bootdevice && export_partdevice diskdev 0 || { + echo "Unable to determine upgrade device" + return 1 + } + + get_partitions "/dev/$diskdev" bootdisk + + #extract the boot sector from the image + get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b 2>/dev/null + + get_partitions /tmp/image.bs image + + #compare tables + diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)" + + rm -f /tmp/image.bs /tmp/partmap.bootdisk /tmp/partmap.image + + if [ -n "$diff" ]; then + echo "Partition layout has changed. Full image will be written." + ask_bool 0 "Abort" && exit 1 + return 0 + fi + ;; unielec,u7623-02-emmc-512m) [ "$magic" != "27051956" ] && { echo "Invalid image type." @@ -52,17 +149,24 @@ platform_check_image() { } platform_copy_config_emmc() { - mkdir -p /recovery - mount -o rw,noatime /dev/mmcblk0p1 /recovery - cp -af "$UPGRADE_BACKUP" "/recovery/$BACKUP_FILE" - sync - umount /recovery + local partdev + + if export_bootdevice && export_partdevice partdev $1; then + mkdir -p /recovery + mount -o rw,noatime "/dev/$partdev" -t vfat /recovery + cp -af "$UPGRADE_BACKUP" "/recovery/$BACKUP_FILE" + sync + umount /recovery + fi } platform_copy_config() { case "$(board_name)" in + bananapi,bpi-r2) + platform_copy_config_emmc 2 + ;; unielec,u7623-02-emmc-512m) - platform_copy_config_emmc + platform_copy_config_emmc 1 ;; esac } -- 2.30.2