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

[Stefan Roese]

On Tuesday 22 April 2008, David Hawkins wrote:
> So, its not impossible, but it does seem like more work than
> using Flash to boot the board.

Full ACK from me. I would always recommend to use a small NOR FLASH with a 
full-blown U-Boot for booting from NOR with full DDR2 setup etc. All this 
will be hard to implement with all the restrictions for booting from PCI 
(even though I have never done this before, but I suspect that it will be 
quite as limited as booting from NAND).

> But of course there may be 
> reasons to want to boot over PCI ...

Yes, what is the main reason you want to do this? As mentioned above, I 
recommend to boot from a small NOR FLASH (512kB) and "wait" in U-Boot for the 
PCI host to provide the OS/application image via PCI.

Best regards,
Stefan

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