Firmware Upgrade
From Rockchip open source Document
Overall
This guide provides information which will help you choose a firmware upgrade way on rockchip platform.
MASKROM
MASKROM is the simplest way.
Belows are the advantages and disadvantages of using maskrom.
Advantages:
- Avoid brick
- Simple, unified
Disadvantages:
- Need a maskrom key
Support update from
- USB OTG
U-boot
Rockchip mainline u-boot have support various upgrade ways, such as rockusb/fastboot/ums, each of them could be used.
It could be entered by issuing "reboot ums/fastboot/rockusb" from linux, or add the board-spefic key detection code.
It's also possible to do network/usb-disk upgrade in u-boot, though you must be familiar with u-boot to use them.
Belows are the advantages and disadvantages of using maskrom.
Advantages:
- normal
Disadvantages:
- Must be familiar with u-boot
Support update from
- USB OTG
- USB DISK
- Network
