[U-Boot-Users] Field upgrade

[Callebaut, Benoit]

Hi,
We use a fail back mecanism for Linux but no such mechanism fo u-boot. 
During the upgrade, we do also a CRC check to be sure that the updgrade was
done correctly.
And with a flag written in a custom config sector of the flash, we can tell
to ppcboot if the upgraded kernel was running correctly.
But for our safety we won't never upgrade ppcboot.


> -----Original Message-----
> From: Chris Simmonds [mailto:chris at 2net.co.uk]
> Sent: Tuesday, December 02, 2003 3:39 PM
> To: u-boot-users at lists.sourceforge.net
> Subject: [U-Boot-Users] Field upgrade
> 
> 
> Hi,
> 
> One of my requirements is that the firmware be field upgradeable. The 
> problem at the moment is that if something goes wrong while 
> erasing and 
> programming a new u-boot there is no recovery without a jtag/bdm 
> debugger. Does anyone have a solution, or is it not a problem in 
> practice? I was playing with the idea of having a backup 
> u-boot and some 
> method of falling back to it if the primary copy is corrupt.
> 
> Chris.
> 
> 
> -- 
> Chris Simmonds                        2net Limited
> chris at 2net.co.uk                      http://www.2net.co.uk/
> Tel:   +44 (0)1962 869003             Fax:   +44 (0)870 056 7556
> "If it's not connected, it's not effective"(tm)
> 
> 
> 
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