> From: Gorwood, Steve [mailto:[EMAIL PROTECTED] 
> Sent: 14 October 2008 14:50

> >   I'm a bit less sure why the RBL can't load u-boot 
> directly.. I think  
> > I worked it out at some point, it's because the RBL can only load 
> > something  that fits into one block, or something like that. The TI 
> > UBL is just a little  bit of glue between RBL and u-boot, 
> as I understand it.
> 
> The UBL has a hard limit of 30K for the size of the program 
> that it loads because it loads it to the internal RAM.  I 
> think that u-boot is a lot larger then that.

Ah yes now I remember, thanks :)
u-boot is around 128KB.
The RBL doesn't know what DRAM you have so can't set it up - that's what
that UBL is needed for.

--
Jon Povey, Design Engineer
[EMAIL PROTECTED] | +44(0)1280 825983  

 
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