Hi Piotr,
On Mon, May 11, 2020 at 4:02 PM Piotr Król <piotr.krol@3mdeb.com> wrote:
>
> On 3/13/20 11:23 AM, Angel Pons wrote:
> > Hi,
> >
> > On Thu, Mar 12, 2020 at 11:07 AM Michal Zygowski
> > <michal.zygowski@3mdeb.com> wrote:
> >>
> >> Hi,
> >>
> >> it may also be a Cedarview chipset. According to my knowledge there is
> >> no support for Cedarview chipset in coreboot. However coreboot has
> >> slightly older (1 year older) chipset support - Pineview.
> >
> > Pineview is very different, though. Memory initialization for Pineview
> > resembles that of Eaglelake (src/northbridge/intel/x4x). Although it
> > only has one memory channel, the registers in MCHBAR are very similar.
> >
> > On the other hand, Cedarview's internal architecture differs radically
> > from Pineview, and it is actually more like Bay Trail. Both use the
> > IOSF architecture, and memory is initialized by interacting with
> > various "units" inside the chip.
> >
> > About the southbridge, I don't know if Cedarview can use NM10 (found
> > on Pineview) or if it must use an EG20T PCH:
> > https://ark.intel.com/content/www/us/en/ark/products/52501/intel-platform-controller-hub-eg20t.html
>
> Hi,
> isn't Cedarview a processor code name and Cedar Trail platform code name?
Yes, I was talking about the processor.
Also, looks like I confused Cedarview with the older Tunnel Creek.
Cedarview would only support the EG20T PCH, it seems.
> This presentation mix both:
> https://manualzz.com/doc/26041007/cedar-trail-platform-bios-session
>
> Interesting slide is 21, this lead me to pre-FSP time when BLDK was used
> and I found this:
> https://www.intel.pl/content/dam/www/public/us/en/documents/guides/cedar-trail-bldk-get-started-guide.pdf
I recall that there were binaries for this somewhere, but can't find
them anymore.
> Probably only companies that have CNDA with Intel can still obtain
> those, but who knows maybe it lays on some server somewhere.
>
> Best Regards,
> --
> Piotr Król
> Embedded Systems Consultant
> GPG: B2EE71E967AA9E4C
> https://3mdeb.com | @3mdeb_com
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Best regards,
Angel
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