fwup.conf

# Firmware configuration file for the Beaglebone Black

# Default paths if not specified via the commandline
define(ROOTFS, "${NERVES_SYSTEM}/images/rootfs.squashfs")

# This configuration file will create an image that
# has an MBR and the following 3 partitions:
#
# +----------------------------+
# | MBR                        |
# +----------------------------+
# | Boot partition (FAT32)     |
# | u-boot.img                 |
# | uenv.txt                   |
# | zImage                     |
# +----------------------------+
# | p1*: Rootfs A (squashfs)   |
# +----------------------------+
# | p1*: Rootfs B (squashfs)   |
# +----------------------------+
# | p2: Application (FAT32)    |
# +----------------------------+
# | p3: Provision (FAT32)      |
# +----------------------------+
#
# The p1 partition points to whichever of Rootfs A or B that
# is active.
define(BOOT0_OFFSET, 16) # 16 blocks * 512byte/block = 8092 byte offset, per H3 requirements

# The boot partition contains u-boot.img, zImage, and has
# room for a debug uEnv.txt if desired
define(BOOT_PART_OFFSET, 2048)
define(BOOT_PART_COUNT, 30720)

# Let the rootfs have room to grow up to 256 MiB and align
# it to the nearest 1 MB boundary
define(ROOTFS_A_PART_OFFSET, 32768)
define(ROOTFS_A_PART_COUNT, 131072) # 64mb
define(ROOTFS_B_PART_OFFSET, 163840)
define(ROOTFS_B_PART_COUNT, 131072) # 64mb

# Application partition
define(APP_PART_OFFSET, 294912)
define(APP_PART_COUNT, 131072) # 64mb

# Provision partition
define(PROV_PART_OFFSET, 425984)
define(PROV_PART_COUNT, 20480) # 10mb

# Firmware metadata
meta-product = "Nerves Firmware"
meta-description = ""
meta-version = ${NERVES_SDK_VERSION}
meta-platform = "nanopi_neo"
meta-architecture = "arm"
meta-author = "David Hanson" # but mostly copied from Frank Hunleth

# File resources are listed in the order that they are included in the .fw file
# This is important, since this is the order that they're written on a firmware
# update due to the event driven nature of the update system.
file-resource u-boot.img {
    host-path = "${NERVES_SYSTEM}/images/u-boot.img"
}
file-resource boot.scr {
    host-path = "${NERVES_SYSTEM}/images/boot.scr"
}
file-resource zImage {
    host-path = "${NERVES_SYSTEM}/images/zImage"
}
file-resource sun8i-h3-orangepi-pc.dtb {
    host-path = "${NERVES_SYSTEM}/images/sun8i-h3-orangepi-pc.dtb"
}
file-resource rootfs.img {
    host-path = ${ROOTFS}
}
file-resource sunxi-spl.bin {
    host-path = "${NERVES_SYSTEM}/images/u-boot-sunxi-with-spl.bin"
}

mbr mbr-a {
    partition 0 {
        block-offset = ${BOOT_PART_OFFSET}
        block-count = ${BOOT_PART_COUNT}
        type = 0xc # FAT32
        boot = true
    }
    partition 1 {
        block-offset = ${ROOTFS_A_PART_OFFSET}
        block-count = ${ROOTFS_A_PART_COUNT}
        type = 0x83 # Linux
    }
    partition 2 {
        block-offset = ${APP_PART_OFFSET}
        block-count = ${APP_PART_COUNT}
        type = 0xc # FAT32
    }
    partition 3 {
        block-offset = ${PROV_PART_OFFSET}
        block-count = ${PROV_PART_COUNT}
        type = 0xc # FAT32
    }
}

mbr mbr-b {
    partition 0 {
        block-offset = ${BOOT_PART_OFFSET}
        block-count = ${BOOT_PART_COUNT}
        type = 0xc # FAT32
        boot = true
    }
    partition 1 {
        block-offset = ${ROOTFS_B_PART_OFFSET}
        block-count = ${ROOTFS_B_PART_COUNT}
        type = 0x83 # Linux
    }
    partition 2 {
        block-offset = ${APP_PART_OFFSET}
        block-count = ${APP_PART_COUNT}
        type = 0xc # FAT32
    }
    partition 3 {
        block-offset = ${PROV_PART_OFFSET}
        block-count = ${PROV_PART_COUNT}
        type = 0xc # FAT32
    }
}

# This firmware task writes everything to the destination media
task complete {
    # Only match if not mounted
    require-unmounted-destination = true

    # Everything that gets written can be verified on the fly.
    # This speeds things up, since we don't care about detecting
    # errors before data gets written.
    verify-on-the-fly = true

    on-init {
        mbr_write(mbr-a)

        fat_mkfs(${BOOT_PART_OFFSET}, ${BOOT_PART_COUNT})
        fat_setlabel(${BOOT_PART_OFFSET}, "BOOT")
    }

    #on-resource MLO { fat_write(${BOOT_PART_OFFSET}, "MLO") }
    on-resource u-boot.img { fat_write(${BOOT_PART_OFFSET}, "u-boot.img") }
    on-resource boot.scr { fat_write(${BOOT_PART_OFFSET}, "boot.scr") }
    on-resource zImage { fat_write(${BOOT_PART_OFFSET}, "zImage") }
    on-resource sun8i-h3-orangepi-pc.dtb { fat_write(${BOOT_PART_OFFSET}, "sun8i-h3-orangepi-pc.dtb") }

    on-resource sunxi-spl.bin {
        raw_write(${BOOT0_OFFSET})
    }

    on-resource rootfs.img {
        # write to the first rootfs partition
        raw_write(${ROOTFS_A_PART_OFFSET})
    }

    on-finish {
        # Initialize the app partition last so that the boot
        # partition can be written in one go.
        fat_mkfs(${APP_PART_OFFSET}, ${APP_PART_COUNT})
        fat_setlabel(${APP_PART_OFFSET}, "APPDATA")
        fat_mkfs(${PROV_PART_OFFSET}, ${PROV_PART_COUNT})
        fat_setlabel(${PROV_PART_OFFSET}, "PROVDATA")
    }
}

task upgrade.a {
    # This task upgrades the A partition
    require-partition1-offset = ${ROOTFS_B_PART_OFFSET}

    # Since the upgrade won't run until it has been finalized, it's ok
    # to write data as it is read.
    verify-on-the-fly = true

    on-init {
        # Erase any old saved files from previous upgrades
        fat_rm(${BOOT_PART_OFFSET}, "zImage.pre")
        fat_rm(${BOOT_PART_OFFSET}, "boot.scr.pre")
    }

    # Write the new firmware and Linux images, but don't
    # commit them. That way if the user aborts midway, we
    # still are using the original firmware.
    on-resource zImage { fat_write(${BOOT_PART_OFFSET}, "zImage.new") }
    on-resource boot.scr { fat_write(${BOOT_PART_OFFSET}, "boot.scr.new") }

    on-resource rootfs.img {
        # write to the first rootfs partition
        raw_write(${ROOTFS_A_PART_OFFSET})
    }

    on-finish {
	# Switch over to boot the new firmware
        mbr_write(mbr-a)

        fat_mv(${BOOT_PART_OFFSET}, "zImage", "zImage.pre")
        fat_mv(${BOOT_PART_OFFSET}, "boot.scr", "boot.scr.pre")
        #fat_mv(${BOOT_PART_OFFSET}, "am335x-boneblack.dtb", "am335x-boneblack.dtb.pre")

        fat_mv(${BOOT_PART_OFFSET}, "zImage.new", "zImage")
        fat_mv(${BOOT_PART_OFFSET}, "boot.scr.new", "boot.scr")
        #fat_mv(${BOOT_PART_OFFSET}, "am335x-boneblack.dtb.new", "am335x-boneblack.dtb")
    }

    on-error {
        # Clean up in case something goes wrong
        fat_rm(${BOOT_PART_OFFSET}, "zImage.new")
        #fat_rm(${BOOT_PART_OFFSET}, "am335x-boneblack.dtb.new")
        fat_rm(${BOOT_PART_OFFSET}, "boot.scr.new")
    }
}

task upgrade.b {
    # This task upgrades the B partition
    require-partition1-offset = ${ROOTFS_A_PART_OFFSET}

    # Since the upgrade won't run until it has been finalized, it's ok
    # to write data as it is read.
    verify-on-the-fly = true

    on-init {
        fat_rm(${BOOT_PART_OFFSET}, "zImage.pre")
        #fat_rm(${BOOT_PART_OFFSET}, "am335x-boneblack.dtb.pre")
        fat_rm(${BOOT_PART_OFFSET}, "boot.scr.pre")
    }

    on-resource zImage { fat_write(${BOOT_PART_OFFSET}, "zImage.new") }
    on-resource boot.scr { fat_write(${BOOT_PART_OFFSET}, "boot.scr.new") }
    #on-resource am335x-boneblack.dtb { fat_write(${BOOT_PART_OFFSET}, "am335x-boneblack.dtb.new") }

    on-resource rootfs.img {
        # write to the first rootfs partition
        raw_write(${ROOTFS_B_PART_OFFSET})
    }

    on-finish {
	# Switch over to boot the new firmware
        mbr_write(mbr-b)

        fat_mv(${BOOT_PART_OFFSET}, "zImage", "zImage.pre")
        fat_mv(${BOOT_PART_OFFSET}, "boot.scr", "boot.scr.pre")
        #fat_mv(${BOOT_PART_OFFSET}, "am335x-boneblack.dtb", "am335x-boneblack.dtb.pre")

        fat_mv(${BOOT_PART_OFFSET}, "zImage.new", "zImage")
        fat_mv(${BOOT_PART_OFFSET}, "boot.scr.new", "boot.scr")
        #fat_mv(${BOOT_PART_OFFSET}, "am335x-boneblack.dtb.new", "am335x-boneblack.dtb")
    }

    on-error {
        # Clean up in case something goes wrong
        fat_rm(${BOOT_PART_OFFSET}, "zImage.new")
        #fat_rm(${BOOT_PART_OFFSET}, "am335x-boneblack.dtb.new")
        fat_rm(${BOOT_PART_OFFSET}, "boot.scr.new")
    }
}