From: Dan Malek <dan@mvista.com>
To: Rainer Kloud <rainer.kloud@siemens.at>
Cc: linuxppc-embedded <linuxppc-embedded@lists.linuxppc.org>
Subject: Re: 8260 FCC Ethernet driver, cpm_8260.h
Date: Wed, 20 Sep 2000 12:26:32 -0400 [thread overview]
Message-ID: <39C8E538.B9F0DA84@mvista.com> (raw)
In-Reply-To: 39C8C584.D845678A@siemens.at
Rainer Kloud wrote:
> But one further question:
> After compelation of your driver I was able to send some
> data (bootp request), but I couldn't receive any.
Check to make sure you are using the same pins for clocks as
the driver has. That is a common problem.
> So setting the desired events in the FCC mask register has
> no effect!
Well, you have to be a little careful here. I don't have the
book handy to look up the details, but there are several places
where things are assigned 32-bit address alignments, but only
the upper 8 or 16 are valid. In some cases, these also have
to be accessed as 16-bit operations on the 32-bit aligment.
One of the reasons is an attempt to use legacy microcode from
the 8xx, which is a 16/20/32-bit CPM architecture in a fully 32-bit
CPM of the 8260....
The code that is posted works on Rev. A parts on several platforms.
I am sure there are some mistakes, but look at it carefully....:-)
> What do you think about this?
I guess I better take a closer look.....
Thanks.
-- Dan
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
prev parent reply other threads:[~2000-09-20 16:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-09-15 8:31 8260 FCC Ethernet driver Rainer Kloud
2000-09-15 15:43 ` Dan Malek
2000-09-15 16:12 ` Dan Malek
2000-09-20 14:11 ` 8260 FCC Ethernet driver, cpm_8260.h Rainer Kloud
2000-09-20 16:26 ` Dan Malek [this message]
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