Re: [coreboot] RYZen single APU design

[qma ster]

As far as I know, AMD does not have any "evil brother" of Intel ME. It only
has AMD PSP (Platform Secure Processor) that is built-in to CPU. So, I
don't think that cutting a PCH from AMD CPU has any practical value: even
if the platform will boot after such a radical change to computer's
hardware, you'll lose a lot of essential stuff like USB ports

2017-03-16 8:03 GMT+03:00 Zoran Stojsavljevic <[e-mail]
> :
> Hello Coreboot folks,
>
> I have couple of interesting questions here.
>
> Recently, I have started learning about AMD (RYZen did not live me
> unemotional), so after reading several articles (especially one with AMD
> architecture):
> http://www.anandtech.com/show/11182/how-to-get-ryzen-working
> -on-windows-7-x64
>
> I found/got from this article very interesting thought: AMD's APU, as
> shown on this picture, could be left alone, even not connecting
> Chipset/PCH!?
>
> I know that for INTEL this is impossible to do. With early INTEL ME
> involvement to HW bring up (wrt PMIC and EC), I am wondering if this is
> very similar architecture with AMD?
>
> [image: Inline image 1]
>
> [1] Did anybody try some proprietary embedded design, with AMD's APU all
> alone (is it at all possible)?
> [2] if [1] true, does anybody have some HW schema showing in details how
> this is done/designed?
> [3] if [1] is true. does Coreboot support such AMD designs (sans
> chipsets/PCHs)?
>
> Thank you,
> Zoran