[coreboot] DDR1 K8 boot broken too (was: Re: PC Engines apu2 boot regression)

Aaron Durbin adurbin at google.com
Fri May 4 18:25:23 CEST 2018


On Fri, May 4, 2018 at 10:01 AM, Jonathan A. Kollasch
<jakllsch at kollasch.net> wrote:
> On Fri, May 04, 2018 at 05:23:40PM +0200, Piotr Król wrote:
>> Hi Aaron,
>> I tried to boot PC Engines apu2 on recent master branch and discovered
>> that it not boot. Bisection points to:
>>
>> 60320182d011 console: only allow console messages after initialization
>>
>> It is hard to believe that this change cause AGESA reset loop, but I
>> checked 3 times. After applying above commit I end up with loop:
>
> I see a similar romstage boot loop starting with this commit on
> msi/ms7135 (K8N Neo3), a DDR1 K8 board.

I think it's the AMD boards and their weird config. CAR_GLOBAL is
used, but apparently these boards fail if accessing CAR_GLOBAL at the
wrong time? If you have log diffs w/ and w/o the patch it'd help with
root cause.

>
>         Jonathan Kollasch
>
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