Subject: Re: pchb PCI Bridge (82452KX/GX?) support
To: MOCHIDA Shuji <mochid@netside.co.jp>
From: Jason R Thorpe <thorpej@wasabisystems.com>
List: port-i386
Date: 06/21/2002 10:17:25
On Sat, Jun 22, 2002 at 01:54:20AM +0900, MOCHIDA Shuji wrote:
> FreeBSD:
> motherboard -+- pcib0 - pci0 -+- fxp0
> | (+- etc.)
> |
> +- pcib1 - pci1 -+- ahc0
> +- ahc1
> (+- etc.)
>
>
> NetBSD(with Masanori Kanaoka's patch):
> mainbus0 - pci0 -+- pchb0 - pci1 -+- pchb1 (- nothing)
> +- fxp0 +- ahc0
> (+- etc.) +- ahc1
> (+- etc.)
>
> ...strange.
Not that strange -- it's an artifact of how FreeBSD does PCI
configuration. The way we do it is actually more logical,
since we follow the way the PCI devices actually present
themselves.
--
-- Jason R. Thorpe <thorpej@wasabisystems.com>