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Re: port-amd64/30654: Not all PCI busses configured on Tyan Thunder K8WE when using ACPI
The following reply was made to PR port-amd64/30654; it has been noted by GNATS.
From: Nicolas Joly <njoly%pasteur.fr@localhost>
Subject: Re: port-amd64/30654: Not all PCI busses configured on Tyan Thunder
K8WE when using ACPI
Date: Sat, 19 Jan 2008 15:27:14 +0100
On Sat, Jul 02, 2005 at 06:22:00AM +0000, Dave Huang wrote:
> >Number: 30654
> >Category: port-amd64
> >Synopsis: Not all PCI busses configured on Tyan Thunder K8WE when
> >using ACPI
> When using ACPI (acpi0 at mainbus0, options MPACPI, and
> options MPACPI_SCANPCI), NetBSD seems to configure only the PCI busses
> attached to the "main" nForce Professional 2200 chip of the Tyan
> Thunder K8WE (S2895) motherboard: it sees the first PCI Express slot
> and all of the onboard devices (SATA, USB, Firewire, etc...) except
> for the second Ethernet port. The second ethernet port and the second
> PCI Express slot are connected to a nForce Professional 2050 chip,
> which NetBSD doesn't detect. It also doesn't see any of the three
> PCI-X slots that are attached to the AMD 8131 PCI-X tunnel.
> However, all PCI slots are detected when using MPBIOS.
I do see a similar issue with a Tyan s2885 (Thunder K8W) motherboard,
where the 2nd root bus isn't detected with ACPI kernels.
The problem is that the DSDT is missing the PCI Routing Table (_PRT)
for this bus, which is AFAIK mandatory.
I asked Tyan to fix the BIOS; but unfortunately, as my motherboard is
EOLed, they said that they won't correct it :-(
Biological Software and Databanks.
Institut Pasteur, Paris.
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