[U-Boot-Users] [PATCH] 83xx: Put the version (and magic) after the HRCW.

Jerry Van Baren gerald.vanbaren at smiths-aerospace.com
Fri Dec 8 17:50:14 CET 2006

Timur Tabi wrote:
> Jerry Van Baren wrote:
>> Arrgh, I forgot about the 8260 master + 7 slaves mode, which fills the 
>> first 256 bytes with HRCWs.  As a result, we cannot put the magic number 
>> and version at offset 0x40 like I did with the 8360 (well, we could do 
>> it, but only if the system doesn't have slaves).  We could, however, put 
>> the magic number and version in a different vector area that has room 
>> (e.g. offset 0x240).
> Or, you could tag the version string with a checksum and a signature, then have 
> the application scan memory until it finds it.  That way, you could put it 
> wherever you want, even in different places on different systems, and it would 
> still work.
> Joakim asked me to ack or nack this patch, but at this point I can't tell who 
> wants what.  Can someone summarize the status of this patch for me?

Hi Timur,

The root post and patch is
which is a patch for the 83xx and is what Joakim is interested in 
(tested on the MPC8360EMDS).  The posting (above) was a followup.  I 
intended to do an equivalent patch for the 8260, but decided not to due 
to the level of effort vs. reward.

The git repository with my patches is at:
Actual repository:

* version-in-text - Put the version (and magic) after the HRCW.
* lowboot - Add high/lowboot configuration to the Makefile, etc.


More information about the U-Boot mailing list