ichwd for ICH8

[Mike Tancsa]

At 02:55 PM 8/10/2007, John Baldwin wrote:

>Don't use ~0ul for the end address, but use the real one.  However, the
>resource management in this driver is all wrong.  What it should be doing, is
>to identify as a child of 'isab' and create a child device of 'isab'.  It
>should then allocate the appropriate BAR from the 'isab' device (the isab
>driver can "proxy" alloc_resource requests from direct children to its bars
>just like the vgapci(4) device) and use that single BAR resource for I/O.
>However, just fixing the end address to be appropriate should fix the driver
>for now.

Hi,
Apart from the FreeBSD Architecture Handbook, are there any other 
resources you can point to that will help me better understand 
FreeBSD and PCI drivers ? I am trying to make a watchdog driver for 
http://wwwd.amd.com/support/PCSGtech.nsf/FAQTablookup/FAQ.49?OpenDocument

as a learning exercise and am trying to understand how to get

"The base address of the MFGPT hardware is typically located in PCI 
configuration space at 80007818h. This is Bus 0h, Device Fh, Function 
0h, Offset 18h."

from FreeBSD.  I have the Linux driver as an example as well.  I was 
using the ichwd as a template, but if thats the "wrong way of doing 
it", I will look elsewhere :)

         ---Mike