PCI to PCI Bridge initialization fails or is corrupted

From: Don L. Belcher <don_at_siad.net>
Date: Fri, 28 Sep 2007 09:34:07 -0700
If somebody could point out to me where the prefetch decode
occurs in the code, this would be a big help.

> This worked around about march of this year. It
> seems to be failing configuration of prefetch
> decode.
>
> Works with 6.0
> 7.0-CURRENT FreeBSD
>
>
> pcib3_at_pci2:6:0: class=0x060400 card=0x00000000 chip=0x01001668 
> rev=0x11 hdr=0x01
>    vendor     = 'Actiontec Electronics Inc.'
>    device     = '0304 PCI to PCI Bridge'
>    class      = bridge
>    subclass   = PCI-PCI
>
> IS:
> pcib3: <ACPI PCI-PCI bridge> at device 6.0 on pci2
> pcib3:   secondary bus     3
> pcib3:   subordinate bus   3
> pcib3:   I/O decode        0x3000-0x3fff
> pcib3:   memory decode     0xf0600000-0xf07fffff
> pcib3:   no prefetched decode
> pci3: <ACPI PCI bus> on pcib3
> pci3: physical bus=3
>
>
>
> SHOULD BE:
> pcib3: <ACPI PCI-PCI bridge> at device 6.0 on pci2
> pcib3:   secondary bus     3
> pcib3:   subordinate bus   3
> pcib3:   I/O decode        0x3000-0x3fff
> pcib3:   memory decode     0xf0600000-0xf07fffff
> pcib3:   prefetched decode 0xfff00000-0xfffff
>
Received on Fri Sep 28 2007 - 14:36:23 UTC

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