Messages in this thread | | | Date | Mon, 23 Aug 1999 22:07:22 -0700 (PDT) | From | <> | Subject | Re: 2.3.14 and VIA IDE controller (MPV3 boards) |
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0x20 is hex -->> rev. 32 or newer. Your chipset is rev. 25 and is not capable of UDMA.
Andre Hedrick The Linux IDE guy
On Tue, 24 Aug 1999, Jamie Lokier wrote:
> andre@suse.com wrote: > > If the ISA-Bridge revision on any VIA chipset group is not 0x20 or > > greater, UDMA is questionable. > > Miness 0x25, VP2/97 and pretty questionable. Locks up after an hour or > two if I just enable DMA. I found `hdparm -X34 -d1' lets me use DMA > without any hangs. Speed is markedly improved with it. Can't get UDMA > at all though. Not a clue how. BIOS doesn't support it but disk does. > > I don't know if the recent chipset tuning stuff helps. Haven't tried > removing the -X34 to find out. > > 00:00.0 Host bridge: VIA Technologies, Inc. VT82C595/97 [Apollo VP2/97] (rev 03) > Flags: bus master, 66Mhz, medium devsel, latency 32 > > 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C586 ISA [Apollo VP] (rev 25) > Flags: bus master, medium devsel, latency 0 > > 00:07.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo] (rev 06) (prog-if 8a) > Flags: bus master, medium devsel, latency 32 > I/O ports at ffa0 > > enjoy, > -- Jamie > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.rutgers.edu > Please read the FAQ at http://www.tux.org/lkml/ >
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