[LinuxBIOS] are SST49LF016C compatible with LPC *and* FWH?

[Jeremy Jackson]

I thought it was when I ordered, and I just got it working as FWH, but
I'm not having much luck using it with LPC (ie CK804).  It looks like
IDSEL needs to be inverted among other things.

I think the CK804 had 4MB rom decoded, if the code in LinuxBIOSv2 does
what it says, so I don't think that's a problem any more.

Suggestions?  Buy LPC for LPC boards and FWH for FWH boards?

Cheers,

Jeremy

[Ed Swierk]

I couldn't get the 016C to work on an LPC board (nVidia MCP55).  The 160C works fine.

--Ed

----- Original Message -----
From: "Jeremy Jackson" 
To: [e-mail]
Sent: Tuesday, May 15, 2007 8:26:42 PM (GMT-0800) America/Los_Angeles
Subject: [LinuxBIOS] are SST49LF016C compatible with LPC *and* FWH?

I thought it was when I ordered, and I just got it working as FWH, but
I'm not having much luck using it with LPC (ie CK804).  It looks like
IDSEL needs to be inverted among other things.

I think the CK804 had 4MB rom decoded, if the code in LinuxBIOSv2 does
what it says, so I don't think that's a problem any more.

Suggestions?  Buy LPC for LPC boards and FWH for FWH boards?

Cheers,

Jeremy

[Jeremy Jackson]

I would have thought LPC spec 1.1 would be a superset of 1.0, but it
seems SST *replaced* the LPC Memory Read/Write transactions with
Firmware Memory Read/Write (multiple bytes).

So I get egg on my face, enough 2MB FWH parts to fire up 8 Intel boards,
a good understanding of LPC vs FWH, and 2 choices for the LPC parts I
actually need.  I guess I shouldn't complain.

ST.com and Atmel.com both have the oh-so-fashionable dual mode LPC/FWH
parts, but they do not have the larger 16Mbit (or bigger) sizes

http://www.chingistek.com/products/fwh.cfm

Has a dual 16Mbit part, I've sent a request for sales info for PLCC32
parts.

Cheers,

Jeremy

On Tue, 2007-05-15 at 21:11 -0700, Ed Swierk wrote:
> I couldn't get the 016C to work on an LPC board (nVidia MCP55).  The 160C works fine.
>
> --Ed
>
> ----- Original Message -----
> From: "Jeremy Jackson" 
> To: [e-mail]
> Sent: Tuesday, May 15, 2007 8:26:42 PM (GMT-0800) America/Los_Angeles
> Subject: [LinuxBIOS] are SST49LF016C compatible with LPC *and* FWH?
>
> I thought it was when I ordered, and I just got it working as FWH, but
> I'm not having much luck using it with LPC (ie CK804).  It looks like
> IDSEL needs to be inverted among other things.
>
> I think the CK804 had 4MB rom decoded, if the code in LinuxBIOSv2 does
> what it says, so I don't think that's a problem any more.
>
> Suggestions?  Buy LPC for LPC boards and FWH for FWH boards?
>
> Cheers,
>
> Jeremy