On Jul 28, 2008, at 1:13 PM, Wolfgang Grandegger wrote:

> Kumar Gala wrote:
>> One topic that come up during OLS in discussions and u-boot BOF  
>> was  the idea of driving u-boot configuration from a device tree  
>> instead of  from "config.h".  I was wondering if anyone has  
>> actually looked at  doing this.
>
> Last year I brought up the topic twice:
>
> http://sourceforge.net/mailarchive/message.php?msg_name=46F384E6.5030603%40grandegger.com
>
>> One question I have is how does (or should) u-boot identify where  
>> to  find the device tree.  I think the idea would be that this  
>> "area"  could be easily reflashed with a new blob to get a new  
>> configuration.
>
> Yep, it's even feasible to flash more than one blob and select one  
> somehow in the early boot phase.
>
> Our main interest in using FDT for U-Boot is to make it dynamically  
> configurable having just one image for various variants of the  
> hardware. Replacing config.h completely seems overkill to me (and  
> will not even be possible).

Agreed.  I'm not suggesting replacing config.h, but removing bits and  
pieces of it.

- k

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