From: Dan Malek <dan@embeddededge.com>
To: Ole Andreas Torvmark <ole.torvmark@radionor.no>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: Problems with DMA transfers on Sandpoint
Date: Fri, 09 Nov 2001 21:23:28 -0500 [thread overview]
Message-ID: <3BEC8FA0.5060600@embeddededge.com> (raw)
In-Reply-To: MHEAIGEFFBAFIOMKCIGCKEJLCAAA.ole.torvmark@radionor.no
Ole Andreas Torvmark wrote:
> I have tried numerous different cards like sound cards,network adapters and
> even frame grabbers and all the cards that use dma transfers dont work.
Hmmm...I haven't tried that many, but I use a variety of Ethernet cards
and SCSI without trouble.
> Since this is just one of the cards that fail in the sandpoint board i am
> wondering if there is something that I haven't done to initialize DMA
> transfers on the sandpoint or should they just work ?
They are PCI bus masters, and "should just work." I am having some
challenges with the 7450 on Sandpoint, but they appears to be pipeline
related.
> Motorola SPS Sandpoint X3 with Unity X4 PPMC MPC8240 @ 266 MHz
> IRQ and GNT/REQ mode = 1 (Sandpoint X2 Compability) (I have tested the other
> modes too)
Ummmm....I've never had much success with X2 compatibility and don't use it.
You may want to try an X3 configuration.
Thanks.
-- Dan
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
prev parent reply other threads:[~2001-11-10 2:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-09 17:38 Problems with DMA transfers on Sandpoint Ole Andreas Torvmark
2001-11-10 2:23 ` Dan Malek [this message]
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