MDIO clock speed computation

Wolfgang Denk wd at
Tue Jul 23 06:15:29 EST 2002

In message <3D3C6233.3090007 at> you wrote:
> system/bus clock speed.  Up to this point, I don't believe there are
> any 8xx parts that are qualified to run beyond a 50 MHz CPU/bus
> speed, so the software is just fine.  If you are running something
> faster than a 50 MHz bus, you may want to look into this.

There are. I've seen MPC823E, 860T, 860P and 862 qualified for 66 MHz
CPU/bus, and 862 for 100/50 MHz CPU/bus.

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at
They weren't that important. They were merely at the top. The  people
who  really  run organizations are usually found several levels down,
where it's still possible to get things done.
                                      - Terry Pratchett, _Small Gods_

** Sent via the linuxppc-embedded mail list. See

More information about the Linuxppc-embedded mailing list