[Soekris] Correct 4801 CompactFlash?

[Hans Zaunere]

Jed Clear wrote on Wednesday, December 26, 2007 10:10 PM:
> On Wed, 26 Dec 2007, Hans Zaunere wrote:
> > Emilio Perea wrote on Wednesday, December 26, 2007 4:59 PM:
> > > On Wed, Dec 26, 2007 at 04:25:34PM -0500, Hans Zaunere wrote:
> > > "The net4801 added support for DMA on the CompactFlash from PCB
> > > rev 3, dated 040226. If you have an older board then you will
> > > need to tell the ATA driver to disable DMA, as it will detect
> > > that the disk supports DMA but doesn't know it's not wired..."
> > > 
> > > If you also have an early board, this is probably the problem.
> > 
> > Not sure of the revision though.  I bought the card in December
> > 2006.  On the back of the box, it has Model Number:  net4801-60
> > 
> > Any thoughts on how I can confirm if this is the problem or not?
> 
> For starters, disable DMA in your OS' ATA driver and see if the
> problem goes away.

This is my next step...

> Secondly you could check the date of your printed circuit card
> revision. 
> > From the photo, http://www.soekris.com/Pictures/net4801_top.jpg,  it
> appears to be silkscreened on near the reset switch in the lower left
> in YYMMDD format.  If yours is older than the date referenced above,
> then DMA won't work.

My date appears to be 040823 - so in theory, DMA should work.  However, it
doesn't.

I guess the best bet then is to try to disable DMA in the BIOS and/or OS,
from what I've read.

H