[coreboot] [PATCH] Add support for Asus M4A785-M, with build instructions

Myles Watson mylesgw at gmail.com
Mon Sep 13 21:32:35 CEST 2010

On Mon, Sep 13, 2010 at 1:12 PM, Juhana Helovuo <juhe at iki.fi> wrote:
> On Mon, 2010-09-13 at 11:36 -0600, Myles Watson wrote:
>> I was hoping that changing the uma location would be enough to affect the rest.
>> Could you try
>>         if (msr.lo > 0xc0000000) { msr.lo = 0xc0000000; }
>> I'm thinking that would place uma at 0xb0000000 & coreboot tables at 0xafff0000.
>> Then could you send the log if that's still unstable.
> Yes, the placement is exactly as you said.
I can't see the conflict.  I'll have to think about it.

Marc: Do you have any insight?

> This version is very unstable. On most attempts is does not get past
> "raminit_amdmct" phase before it starts booting from the start.

That's especially interesting because we haven't changed anything that early.

> If it gets to the payload, then VGA output is just random pixel noise
> and usually there is a spontaneous reboot in a few seconds.

Thanks for the info,

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