ahci and ICH7?

Xin LI delphij at delphij.net
Sat Dec 12 11:20:52 UTC 2009


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Stefan Bethke wrote:
> After being very satisfied with ahci(4) on an Intel DG45FC (G45 chipset) with 8-stable, I tried on a box with a Asus P-P5G41 (G41 chipset), but ahci is not attaching.  atapci continues to attach, and I'm wondering whether I'm doing something wrong, the BIOS is misconfigured, or ahci can't talk to ICH7-based AHCIs?  I'm loading ahci from loader.conf.
> 
> 
> atapci0 at pci0:0:31:1:	class=0x01018a card=0x81791043 chip=0x27df8086 rev=0x01 hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = '82801G (ICH7 Family) Ultra ATA Storage Controller'
>     class      = mass storage
>     subclass   = ATA
> atapci1 at pci0:0:31:2:	class=0x01018f card=0x81791043 chip=0x27c08086 rev=0x01 hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = '82801GB/GR/GH (ICH7 Family) Serial ATA Storage Controller'
>     class      = mass storage
>     subclass   = ATA

Have you enabled AHCI in BIOS?  It looks like that your ICH7 is in
legacy SATA mode.

Cheers,
- --
Xin LI <delphij at delphij.net>	http://www.delphij.net/
FreeBSD - The Power to Serve!	       Live free or die
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