ICH7M limited to SATA-150?

[Xin LI]

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Michael Butler wrote:
> Jeremy Chadwick wrote:
> 
>> On Thu, Oct 30, 2008 at 01:47:48PM -0700, Xin LI wrote:
>>> Personally I don't really think ICH7M is capable to do SATA-300.  Intel
>>> datasheet 307013, page 191 says:
>>>
>>>                        Supported      Supported
>>> 3 Gb/s Transfer Rate
>>>                      (Desktop Only) (Desktop Only)
>>>
>>> My understanding is that ICH7- *M* does not support SATA-300 at all.
>> Xin Li is correct -- the mobile version doesn't do SATA300.
> 
> Then there is a correction required to /sys/dev/ata/ata_chipset.c - mine
> identifies itself as:
> 
> atapci0 at pci0:0:31:2:    class=0x010180 card=0xff101179 chip=0x27c48086
> rev=0x02 hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = '82801GBM/GHM (ICH7-M Family) Serial ATA Storage
> Controller'
>     class      = mass storage
>     subclass   = ATA
> 
>  .. where 0x27c4 is "legacy" mode and 0x27c5 is AHCI mode,

Yes.  I have actually already submitted a patch to sos@ for review.
Please note that 27c4, 27c5 and *27c6* should all be changed, according
to the datasheet.  Thanks for bringing this to our attention.

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