[U-Boot-Users] Re: Problems with MPC8247, HRCW, PCI_MODCK and PLL multiplication factors

[Ron Kellam]

On Mon, 10 Oct 2005 10:55:52 -0500, "Rune Torgersen"
<runet at innovsys.com> wrote:

>> From: Ron Kellam
>> In short, my current problem is that the PCI_MODCK bit in the
>> SCCR register does not reflect the PCI_MODCK bit in the Hard 
>> Reset Configuration Word.  Thus I can't get the clocks I want.
>
>Sounds like the PCI is enabled in hardware, because then the MODCK_H
>bits in the HRCW are ignored and the MODCK_H pins on the CPU are used
>instead.

The MPC8272 family does not have MODCK_H pins, or a PCI_MODCK pin -
these bits only exist as part of the HRCW.  AFAIK, the 8272 was a
derivative of the 8260 and 8280 families, and these were some of the
changes.

Any other ideas?