M68360 ethernet troubles.

Eric Norum eric.norum at usask.ca
Thu Apr 19 22:55:44 UTC 2001

Jake Janovetz wrote:
> Howdy folks...
>    I've been using the 68360 (5v version) with the Motorola 68160
> ethernet PHY for some time and recently started a board using
> the 68360 (3.3v version) and AMD Am79C874 PHY.
>    The board comes up, then starts to initialize ethernet by calling
> rtems_bsdnet_initialize_network(), but it never returns.  When I
> try to break (using CTRL-C in GDB), I'm notified that the processor
> was stopped in _Thread_Idle_body.  So, it doesn't appear that the
> board has hung.
>    Hardware looks good.  The PHY recognizes the ethernet cable and
> shows receive activity information on the LEDs.
>    Being pretty ignorant about the ethernet driver, I don't exactly
> know where to set breakpoints and what to check for.  Can I get any
> suggestions?  Very similar code works on my 5v 68360 boards.

Are you sure the new board is using the same I/O pins as the old one? 
The SCC1 signals can be routed more than one way!

Eric Norum                                 eric.norum at usask.ca
Department of Electrical Engineering       Phone: (306) 966-5394
University of Saskatchewan                 FAX:   (306) 966-5407
Saskatoon, Canada.

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