Difference between revisions of "Firmware Upgrade"

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Both yocto and debian use deb as the package manager, so firmware upgrade could be done by deb installation.
 
Both yocto and debian use deb as the package manager, so firmware upgrade could be done by deb installation.
  
(SDK build scripts can pack kernel/u-boot in deb)
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<small>(SDK build scripts&nbsp;can pack kernel/u-boot in deb)</small>
  
 
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Revision as of 07:38, 25 October 2017

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:

  • Common

Disadvantages:

  • Must be familiar with u-boot

Support update from

  • USB OTG
  • USB DISK
  • Network

 



Linux

Both yocto and debian use deb as the package manager, so firmware upgrade could be done by deb installation.

(SDK build scripts can pack kernel/u-boot in deb)

 

Advantages:

  • standard
  • friendly to the users

Disadvantages:

  •  could be brick

 

SD-Card Recovery

By changing boot order in u-boot, it's possible to let u-boot load kernel and rootfs from sd-card at first.

We could use it to create a sd-card recovery image.

When the board boot into sd-card, the init scripts in SD-Card can install kernel/u-boot deb  which will burn firmware to eMMC.

A sd-card recovery image could created by meta-rockchip-initramfs.

Advantages:

  • Convenient
  • Easy to customize, like a normal linux

Disadvantages:

  • Slow

 


Initramfs/Recovery

Advantages:

  • Easy to customize, like a normal linux
  • Powerful

Disadvantages:

  • Slow