Re: 2.4.2-ac12 unknown southbridge

From: Mike Galbraith (mikeg@wen-online.de)
Date: Tue Mar 06 2001 - 04:29:00 EST


On Tue, 6 Mar 2001, Vojtech Pavlik wrote:

> On Tue, Mar 06, 2001 at 10:09:05AM +0100, Mike Galbraith wrote:
>
> > The driver forget what it always called a vt82c596b before. Reverting
> > the below brought it back on-line, and all seems well again. (hope I
> > don't receive any unpleasant suprises.. I've not the foggiest clue what
> > that number means;)
> >
> > - { "vt82c596b", PCI_DEVICE_ID_VIA_82C596, 0x12, 0x2f, VIA_UDMA_66 },
> > + { "vt82c596b", PCI_DEVICE_ID_VIA_82C596, 0x10, 0x2f, VIA_UDMA_66 },
>
> Can you verify it's a 596b and not 596a? Preferably by looking on the
> chip? This change was brought in because I wasn't sure for the 10 and 11
> revisions. 586a doesn't have a functional UDMA66 engine and causes
> crashes if programmed to UDMA66.

*blur* SQUINT (I _definitely_ need new glasses) it's a 596b.

Probably dumb question wrt hdparm -i output...

/dev/hda:

 Model=IBM-DJNA-352030, FwRev=J58OA30K, SerialNo=GQ0GQFP8740
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=34
 BuffType=DualPortCache, BuffSize=1966kB, MaxMultSect=16, MultSect=off
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=39876480
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes: pio0 pio1 pio2 pio3 pio4
 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 *udma4

Why is it defaulting to udma4, and :) why the heck does it work?

        -Mike

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