device trees.

[Stephen Neuendorffer]

Another possibility is to pad the DTB with a DESYNC command and the correct pad frame, just in case it cannot be prevented.

Steve

> -----Original Message-----
> From: Grant Likely [mailto:grant.likely at secretlab.ca]
> Sent: Monday, May 11, 2009 10:30 PM
> To: Stephen Neuendorffer
> Cc: David H. Lynch Jr.; linuxppc-dev at ozlabs.org
> Subject: Re: device trees.
> 
> On Mon, May 11, 2009 at 10:27 PM, Stephen Neuendorffer
> <stephen.neuendorffer at xilinx.com> wrote:
> >> > OK, so the key question seems to be *when* the bitstream is
> > associated
> >> > with the
> >> > device tree.  If at bitstream generation time, you can prepend the
> > .dtb
> >> > to the bitstream.  As long as the dtb doesn't contain the magic
> >> > bitstream start code, you can go back and access it later.
> >> >
> >> You really mean prepend ? I was presuming that things would work
> > better
> >> if it was appended ?
> >
> > Yes, actually prepend is simpler because you don't have to know the size
> > of the bitstream.
> > Everything before the SYNC code in the bitstream is ignored.
> 
> ...In this case, might need to preprocess the .dtb the escape out the
> possibility of a sync code appearing.
> 
> g.
> 
> --
> Grant Likely, B.Sc., P.Eng.
> Secret Lab Technologies Ltd.


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