[U-Boot-Users] pci memory booting on ppc460

[Stefan Roese]

On Friday 25 April 2008, Ayman El-Khashab wrote:
> > Sounds quite reasonable. The only thing I'm unsure here is the size of
> > the PCI windows that is mapped upon PCI booting.
>
> Thanks for all your help ...
>
> I thought the answer to both questions was in footnote 3 on page 8 of
> the data sheet.  At least that was
> my interpretation of the following statement:  "3. When the optional
> boot from PCI Memory is selected, the
> PCI Boot ROM address space begins at 0000 000C FF00 0000 (16 MB)."

Ah, I didn't notice this.

> I interpreted that to mean the address was not something that needed to
> be configured in any sort of
> bar register and that the address it fetched was fixed.  So the only
> thing that was required was to
> configure the inbound translation on the bridge.

You could be right here.

Good luck with this PCI booting stuff. Please keep us informed on the 
progress.

Best regards,
Stefan

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