[coreboot] EARLY_CBMEM_INIT for Geode LX platforms

[Piotr Król]

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Hi Kyösti,
if you can support us and provide some guidance about correct way of
approaching below issue we would appreciate that.

On 12/14/2017 04:56 PM, Michal Zygowski wrote:
> Hello Everyone,
> 
> As a result of incoming 4.7 release many boards are going to be 
> deprecated. We would like to support alix platforms which are based
> on Geode LX and yet not EARLY_CBMEM_INIT enabled. We have all
> hardware at hand and would gladly bring these platforms up to
> current standards.
> 
> We saw that Kyösti Mälkki did a lot of good work for other AMD
> platforms and even offered to help with implementing
> EARLY_CBMEM_INIT on Geode. Unfortunately the thread died: 
> https://www.mail-archive.com/coreboot@coreboot.org/msg50205.html
> 
> Could You give us any tips where and how to start?
> 
> AFAIK it is about calculating the top of RAM and recovering the
> cbmem on S3 resume (am I wrong?). I have already tried to implement
> it, but when trying to get timestamps with cbmem, it complains that
> it could not find timestamp table (did not even get error with
> cpufreq missing as this module occurs to be a problem on Geode).
> 
> Has anybody maybe done some work yet?
> 
> Best Regards, --- Michał Żygowski https://3mdeb.com | @3mdeb_com
> 

Best Regards,
- -- 
Piotr Król
Embedded Systems Consultant
https://3mdeb.com | @3mdeb_com
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