[LinuxBIOS] MB1030 / 3036 VGA comes up :D

Goodrich,Steven steven.goodrich at amd.com
Fri Apr 28 01:06:39 CEST 2006

Hmm... Let me back up a step.  I'm apparently answering a question
you're not asking.  Your problem is that you want to disable the
internal video (and PCI header) and use external, right?  Is that it?

    -- Steve G. 

Steve Goodrich (Steven.Goodrich at amd.com)
Advanced Micro Devices, Inc.

-----Original Message-----
From: Richard Smith [mailto:smithbone at gmail.com] 
Sent: Thursday, April 27, 2006 4:11 PM
To: Goodrich,Steven
Cc: LinuxBIOS
Subject: Re: [LinuxBIOS] MB1030 / 3036 VGA comes up :D

On 4/27/06, Goodrich,Steven <steven.goodrich at amd.com> wrote:
> We have an older board (from before I came to be with AMD) which was
built with a GXm, CS5530, and NSC 97317 SIO.   I can pull preferred
register settings from a document if that would help.

Yes those would probally help..

> Our preferred settings for this platform were:
> BC_XMAP_1 = 0x1300C060
> BC_XMAP_2 = 0x09999999
> BC_XMAP_3 = 0x99****99 (* = don't care)

Or perhpaps just confuse things more.  9's in XMAP2 is PCI accessable,
No Cache, No Write, Read.

I'm not sure how you would load the shadow copy of the bios into this
range with write disabled .  Until we started setting the write bit for
these ranges the emulator was getting all 0xFFs for its data.

> Are you loading an SMM handler on this platform?

Dosen't look like it.  Is that a big problem?  I know for the gx2 it's a
big issue since it dosen't have PCI config space without it.  But this
part seems to have PCI config method #1 without SMM.

Richard A. Smith

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