Date: Fri, 6 Jun 2003 13:02:24 +0200 From: Alexander Leidinger <Alexander@Leidinger.net> To: Terry Lambert <tlambert2@mindspring.com> Cc: current@freebsd.org Subject: Re: VIA ACPI power management controller Message-ID: <20030606130224.382b66df.Alexander@Leidinger.net> In-Reply-To: <3EDF7A7F.24480C7B@mindspring.com> References: <20030605161425.71dec07a.Alexander@Leidinger.net> <3EDF576F.8FAA751C@mindspring.com> <20030605171451.4140656b.Alexander@Leidinger.net> <3EDF7A7F.24480C7B@mindspring.com>
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On Thu, 05 Jun 2003 10:14:39 -0700
Terry Lambert <tlambert2@mindspring.com> wrote:
> Alexander Leidinger wrote:
> > Terry Lambert <tlambert2@mindspring.com> wrote:
> > > Be aware that if your machine is a "B" (82C686B), then you have
> >
> > It is.
I'm not that sure anymore... see below.
> > > the buggy version of the chip; you need to eiter not use the
> > > second IDE channel for anything, or you need a BIOS update, or
> >
> > Not using the second IDE channel: not an option.
>
> Additional PCI IDE controller...
Having this information available via ACPI isn't worth that much money
for me. I already get thermal information with xmbmon.
> > BIOS update: how do I know if the latest BIOS for the port has the
> > appropriate fix? I don't think the support people know enough to answer
> > such a question.
>
> They had better, or you had better find a different vendor.
It's an old board (KT133A chipset), my desktop system. I don't care that
much, and I don't expect the vendor to support it for that long
(typically I'm more optimistic, but it seems I know too much about how
bad the world in reality is now).
> Basically:
>
> o Disable PCI master read caching
> o Lower PCI latency to "0-32"
> o Disable PCI delay transaction
>
> Yes, it's ugly on your PCI throughput; you are better off adding
> an IDE interface on a PCI card, IMO.
I'm a little bit confused now...
atapci0: <VIA 82C686B UDMA100 controller> port 0xd000-0xd00f at device 7.1 on pci0
viapropm0: <VIA VT82C686A Power Management Unit> port 0x5000-0x500f at device 7.4 on pci0
pcm0: <VIA VT82C686A> port 0xe400-0xe403,0xe000-0xe003,0xdc00-0xdcff irq 5 at device 7.5 on pci0
I think I should look at the chip itself...
Bye,
Alexander.
--
Yes, I've heard of "decaf." What's your point?
http://www.Leidinger.net Alexander @ Leidinger.net
GPG fingerprint = C518 BC70 E67F 143F BE91 3365 79E2 9C60 B006 3FE7
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