766de7013f
Some vendors of Senao boards have a similar flash layout situation that causes the need to split the firmware partition and use the lzma-loader, but do not store checksums of the partitions or otherwise do not even have a uboot environment partition. This adds simple shell logic to skip that part. Also, simplify some lines and variable usage. Signed-off-by: Michael Pratt <mcpratt@pm.me>
65 lines
2.4 KiB
Bash
65 lines
2.4 KiB
Bash
# U-Boot with the datachk patchset requires image sizes, offsets,
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# and checksums to be provided in the U-Boot environment.
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# This script is based on the dualboot version for devices that come with 2 OS partitions.
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# For Senao boards with a "failsafe" partition image, the process is almost the same.
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# Instead of booting a secondary instalation on checksum failure,
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# the failsafe image is booted instead.
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# These boards also use the OKLI lzma kernel loader and mtd-concat
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# So the kernel check is for the loader, the rootfs check is for kernel + rootfs
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platform_do_upgrade_failsafe_datachk() {
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local flash_base=0x9f000000
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local kernel_mtd=$(find_mtd_index ${KERNEL_PART:-kernel})
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local rootfs_mtd=$(find_mtd_index ${ROOTFS_PART:-rootfs})
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local kernel_offset=$(cat /sys/class/mtd/mtd${kernel_mtd}/offset)
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local rootfs_offset=$(cat /sys/class/mtd/mtd${rootfs_mtd}/offset)
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if [ -n "$IMAGE_LIST" ]; then
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KERNEL_FILE=$($IMAGE_LIST | grep $KERNEL_FILE)
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ROOTFS_FILE=$($IMAGE_LIST | grep $ROOTFS_FILE)
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fi
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local kernel_size=$($IMAGE_CMD $KERNEL_FILE | wc -c)
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local rootfs_size=$($IMAGE_CMD $ROOTFS_FILE | wc -c)
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# rootfs without JFFS2
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local rootfs_blocks=$((rootfs_size / 4096))
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rootfs_size=$((rootfs_blocks * 4096))
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local kernel_md5=$($IMAGE_CMD $KERNEL_FILE | md5sum | cut -d ' ' -f1)
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local rootfs_md5=$($IMAGE_CMD $ROOTFS_FILE | dd bs=4k count=$rootfs_blocks iflag=fullblock | md5sum | cut -d ' ' -f1)
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# prepare new u-boot-env vars
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printf "vmlinux_start_addr 0x%08x\n" $((flash_base + kernel_offset)) >> $ENV_SCRIPT
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printf "vmlinux_size 0x%08x\n" ${kernel_size} >> $ENV_SCRIPT
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printf "vmlinux_checksum %s\n" ${kernel_md5} >> $ENV_SCRIPT
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printf "rootfs_start_addr 0x%08x\n" $((flash_base + rootfs_offset)) >> $ENV_SCRIPT
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printf "rootfs_size 0x%08x\n" ${rootfs_size} >> $ENV_SCRIPT
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printf "rootfs_checksum %s\n" ${rootfs_md5} >> $ENV_SCRIPT
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# store u-boot-env
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mkdir -p /var/lock
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[ -n "$SKIP_HASH" ] || fw_setenv -s $ENV_SCRIPT || {
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echo 'failed to update U-Boot environment'
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exit 1
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}
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# sysupgrade
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sleep 2 && sync && echo 3 > /proc/sys/vm/drop_caches
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$IMAGE_CMD $KERNEL_FILE | mtd $MTD_ARGS write - ${KERNEL_PART:-kernel}
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sleep 2 && sync && echo 3 > /proc/sys/vm/drop_caches
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if [ -n "$UPGRADE_BACKUP" ]; then
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$IMAGE_CMD $ROOTFS_FILE | mtd $MTD_ARGS $MTD_CONFIG_ARGS -j $UPGRADE_BACKUP write - ${ROOTFS_PART:-rootfs}
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else
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$IMAGE_CMD $ROOTFS_FILE | mtd $MTD_ARGS write - ${ROOTFS_PART:-rootfs}
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fi
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sync
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}
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