NAME

       rkdeveloptool - rockusb bootloader utility

SYNOPSIS

       rkdeveloptool [OPTIONS] COMMAND [ARGS]...

       COMMAND := {list | list-partitions | read | read-partition | write | write-partition |
       write-partition-table | write-parameter | erase-flash | boot | test-device | upgrade-
       loader | reset | reboot | reboot-maskrom | shutdown | read-flash-id | read-flash-info |
       read-chip-info | read-capability | pack | unpack | tag-spl }

       OPTIONS := { -h | -v }

DESCRIPTION

       Reads or writes the storage of a rockchip device booted into the rockusb bootloader mode

OPTIONS

       -h, --help
           Show the help message and quit

       -v, --version
           Show the version number and quit

COMMANDS

       list
           Show the connected devices

       list-partitions
           Show the GPT partition table entries if a GPT table exists on the flash

       read START-SECTOR NUM-BYTES FILENAME
           Read the specified number of bytes from the sector offset into the specified file

       read-partition PARTITION FILENAME
           Read the contents of a named partition to a file

       write START-SECTOR FILENAME
           Write the contents of the file to the eMMC starting at a specific sector

       write-partition PARTITION FILENAME
           Write the contents of the file into a named partition

       write-partition-table DEFINITION-FILE
           Write a new GPT partition table block with partitions defined in a file

       write-parameter ?
           Not sure what this does

       erase-flash
           Wipe the internal flash storage

       boot FILENAME
           Load an image into ram and boot it

       test-device
           Check if there is a device attached in the ready state

       upgrade-loader FILENAME
           Write a new rockusb bootloader to the flash

       reset [SUBCODE]
           Reset the device. Optionally with a subcode which is a number between 0 and 5

       reboot
           Reboot the device, this is an alias for reset 0

       reboot-maskrom
           Reset the device and trigger maskrom mode

       shutdown
           Reset device without triggering a reboot

       read-flash-id
           Read the eMMC flash id

       read-flash-info
           Read the flash chip specifications

       read-chip-info
           Read the SoC info bytes

       read-capability
           Read the permissions of the rockusb bootloader

       pack
           Merge a boot image

       unpack [FILENAME]
           Unpack a boot image into the separate files

       tag-spl [TAG] [SPL-FILE]
           Prepend the tag to the SPL-FILE and save it as filename.tag

EXAMPLES

       Backup a partition of the device

           rkdeveloptool read-partition uboot uboot.img

       Restore a partition of the device

           rkdeveloptool write-partition uboot uboot.img

       Read the bootloader magic block from sector 64

           rkdeveloptool read 64 512 bootloader-magic.bin