Forcing ICH7-M into AHCI mode?

[Hauke Fath <hauke%Espresso.Rhein-Neckar.DE@localhost>]

All,

I am twiddling a Samsung NC10 equipped with an ICH7-M sata controller 
whose bios setup does not offer* an AHCI option. NetBSD attaches it as 
piixide.

The procedure suggested in 
<https://dreamlayers.blogspot.com/2016/11/switching-from-ide-to-ahci-on-ich7-m.html>, 
running a setpci command from grub, successfully put the controller in 
AHCI mode and booted an ubuntu 16 installation.

Is there a way (PCI quirk?) for NetBSD to switch the controller to AHCI 
in the config phase? 

Cheerio,
hauke


*Reportedly, there are other vendors' models from that period with 
similar problems

-- 
Hauke Fath                        <hauke%Espresso.Rhein-Neckar.DE@localhost>
Ernst-Ludwig-Straße 15
64625 Bensheim
Germany