[U-Boot] TSEC ethernet controller problems (crc errors / corruption)

[Peter Tyser]

On Tue, 2009-06-02 at 09:42 -0700, David Hawkins wrote:
> > I am unable to reproduce the corruption on my MPC8349EMDS eval board,
> > but I'm running out of ideas to try and find the source of this problem.
> 
> One more piece of info: the MPC8349E-MDS board contains the
> MPC8349E processor, whereas our board contains the MPC8349EA
> (silicon v 3.1) processor. We did have a couple of MPC8349EA-MDS
> boards, however, the Xilinx CPLD on both boards spontaneously
> destructed (the CPLD sticky labels melted!).
> 
> We can try putting the MPC8349EA processor from one of the
> dead boards into the MPC8349E-MDS board socket - I believe
> this is ok - feel free to warn us that its not :)

What interface are you using between the MAC and PHY?  I saw somewhat
similar weirdness at gigabit on a board when using RGMII and the clock
delays in the PHY and PCB didn't match up correctly (Section 5.12.2 from
the 88e1111 manual).  If you aren't using RGMII, this wouldn't be your
issue though...

Best,
Peter