Re: [PATCH] AHCI: add Dell PowerEdge SC430 pci id

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On Fri, May 09, 2008 at 12:34:35AM +0100, Matthew Garrett wrote:
> On Thu, May 08, 2008 at 10:40:28PM +0200, maximilian attems wrote:
> > ATA chipset on Dell PowerEdge SC430 is identified as:
> > 00:1f.2 IDE interface [0101]: Intel Corporation 82801GB/GR/GH (ICH7
> > Family) Serial ATA Storage Controller IDE [8086:27c0] (rev 01)
> > 
> > Kernel load the ahci driver with NCQ support after I added it's
> > device IDs into ahci.c.
> 
> Please don't do that. The BIOS has programmed the chip into IDE mode, 
> not AHCI mode. It seems to have also set up the AHCI BAR, but the 
> majority of chips with this ID won't have been and so the ahci driver 
> will fail with them. If the chip was in AHCI mode, the device ID would 
> automatically have changed to 0x27c1.

thanks for the info.
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