Re: AMD-756 IDE

From: Andre Hedrick (andre@linux-ide.org)
Date: Wed May 31 2000 - 13:39:39 EST


On Wed, 31 May 2000, Bartlomiej Zolnierkiewicz wrote:

>
> On Mon, 29 May 2000, Bartlomiej Zolnierkiewicz wrote:
>
> > * 0x43, 0x44, 0x46, 0x60, 0x68 and few others (not used in via82cxxx.c)
> > are only described in via datasheets, but I suspect that most of them
> > are implemented in amd's chipset and not documented in data sheet.
>
> Thanks to Juan J. Quintela I verified this.
> I was wrong. These registers are VIA specific. AMD's datasheet is OK!.
> However most of code of via82cxxx.c and amd7409.c can be shared in some
> (clever?) way.

These two are to never mix. VIA code only needs to know about the
north-bridge to begin the guess aof feature support. All of the VIA code
is south-bridge dependent after the north-bridge is found.

Andre Hedrick
The Linux ATA/IDE guy

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