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Date: Wed, 8 Jan 2003 22:53:53 +0100 (MET)
From: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
To: Petr Vandrovec <VANDROVE@vc.cvut.cz>
cc: "H. Peter Anvin" <hpa@zytor.com>, linux-kernel@vger.kernel.org
Subject: Re: PCI code:  why need  outb (0x01, 0xCFB); ?
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Organization: Technical University of Gdansk
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On Wed, 8 Jan 2003, Petr Vandrovec wrote:

> >  Fortunately that's not true.  Grab the relevant docs from: 
> > 'ftp://download.intel.com/support/chipsets/430nx/'.  The semantics of
> > 0xcf8, 0xcf9, 0xcfa and 0xcfb I/O ports when used as byte quantities is
> > explained there.  Note that 0xcf8 and 0xcfa are the way to get at the PCI
> > config space using conf2 accesses. 
> 
> Thanks, page 34 of 290479.pdf is exactly what I was looking for 
> (i.e. write 1 to 0xCFB to get PCI conf1, write 0 to get PCI conf2).
> Next time I'll complain immediately instead of spending time with
> browsing Intel website and google.

 Well, the download.intel.com docs are sometimes hard to get by.  There
are a few EISA and basic peripheral specs nearby, too.

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +

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