Mike Timmons wrote:
I'm trying to wrestle the peak CAN driver for the old, non-device-tree
ppc into submission but I'm making a mess of it so far.
I think I'll get it going at some point, but if anybody has or knows of
an mscan driver for the mpc5200 can you alert me?
http://svn.berlios.de/svnroot/repos/socketcan/trunk/README
The Socket-CAN core is part of the official kernel since 2.6.25.
Wolfgang.
Thanks,
Mike
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
On Behalf Of Scott Wood
Sent: Tuesday, June 17, 2008 4:30 PM
To: Mike Winter
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: PCI DMA Problems With 82xx?
Mike Winter wrote:
We are developing with an 8248-based platform, and we have a vendor
telling us that the PCI hardware is unreliable on this CPU family, in
particular the DMA functionality. A quick search of this list doesn't
turn up any horror stories, although the processor does have some PCI
errata listed. Does anybody have any practical experience using PCI
on
the 8248 or similar that they can share with me? Thanks.
Make sure that you park the bus on PCI, and elevate PCI's arbitration
priority. See fixup_pci() in arch/powerpc/boot/cuboot-pq2.c.
I haven't had a problem with PCI DMA when that is done, though I haven't
done significant stress testing.
-Scott
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