On 10/14/2010 08:35 AM, Joseph Smith wrote:
On 10/13/2010 03:00 PM, Uwe Hermann wrote:
Hi,
patch is committed with Peter's ack in r5949 as it's not really directly
related to this discussion and also boot-tested by me on MSI MS-6178
as mentioned in the patch description.
On Wed, Oct 13, 2010 at 09:50:52AM -0400, Joseph Smith wrote:
On 10/13/2010 01:24 AM, Warren Turkal wrote:
On Tuesday 12 October 2010 19:22:43 Joseph Smith wrote:
FC-PGA's support SSE2 while the PGA's do not. that is the
difference. I
created FC_PGA370 to make the CAR coversion simpler. Hope that helps.
I must be misunderstanding this entirely.
First, you say there is a difference in that the FC version support
SSE2. Then,
you say that the FC_PGA370 socket is simply a mechanism to make
conversion to
CAR easier.
Hm, this stuff may need some clarification and/or fixing in coreboot
indeed.
As far as I can see, e.g. from
http://www.cpu-world.com/Sockets/Socket%20370%20%28PGA370%29.html
there were 3 different sockets named socket370, all of which were
physically compatible, but not electrically.
I'm not so sure about the naming, but these seem to be the different
packages / form factors of the sockets:
- Plastic pin grid array (PPGA)
- Flip-chip pin grid array (FC-PGA)
- Flip-chip pin grid array (FC-PGA2)
(http://en.wikipedia.org/wiki/Socket_370)
Now, whether or not we need or want different socket_* directories for
these I'm not sure yet, probably needs some investigation.
However, as we're switchting all CPUs/boards to CAR sooner or later,
having an extra dir just for the CAR (vs. ROMCC) version of the socket
will not be required.
As for SSE/SSE2, that seems to be a mess in coreboot too right now.
Yes. I would like to see a common socket for all three maybe just
socket_370 (Socket 370 is all that is in most mainboard vendor
descriptions)?. There must be some way to probe and detect what features
the cpu has and include the features based in that? Maybe a simple table
with the model numbers?
Anyways why can't cpu specific features be implemented at the model
level and not at the socket level???
--
Thanks,
Joseph Smith
Set-Top-Linux
www.settoplinux.org
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