Difference between revisions of "Firmware Upgrade"

From Rockchip open source Document
Jump to: navigation, search
Line 52: Line 52:
  
 
 
 
 
 +
  
 
= Linux =
 
= Linux =
  
Our SDK build scripts have support pack deb for kernel/u-boot and both yocto and debian coudl deb as the package manager,
+
Our SDK build scripts support pack kernel/u-boot in deb and both yocto and debian use deb as the package manager,
  
So firmware upgrade could be done by deb installation.
+
so firmware upgrade could be done by deb installation.
  
 
Advantages:
 
Advantages:

Revision as of 06:23, 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

Our SDK build scripts support pack kernel/u-boot in deb and both yocto and debian use deb as the package manager,

so firmware upgrade could be done by deb installation.

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

See meta-rockchip-initramfs.

Advantages:

  • Easy to customize, like a normal linux
  • Powerful

Disadvantages:

  • Slow