ok, so you're hanging on FSP-S execution. So your PSP bootloader, ABL,
APCB, etc are all good since you're getting out of x86 reset and into
coreboot.
I suspect an issue with your port descriptors.
Another thought - is your board using LPC or eSPI? I don't think FSP
supports the former


On Wed, Dec 17, 2025 at 8:33 AM Joursoir <[email protected]> wrote:

> Hey Matt,
>
> That's strange, vim easily opens file for me, but anyway.
>
> paste.sh link: https://paste.sh/0SSmYl-x#l7Q-MPEowFKwzKfn63e0qASH
> And i've also attached ascii version this time.
>
> ```
> $ file putty_coreboot_cezanne_ascii.log
> putty_coreboot_cezanne_ascii.log: ASCII text, with CRLF line
> terminators, with escape sequences
> ```
>
> --
> Joursoir
>
> On Wed, 17 Dec 2025 07:57:32 -0600
> Matt DeVillier <[email protected]> wrote:
>
> > hi Joursoir,
> >
> > the attached log does not appear to be UTF-8 (or anything else my
> > editor recognizes)
> >
> > -Matt
> >
> > On Wed, Dec 17, 2025 at 5:55 AM Joursoir <[email protected]> wrote:
> >
> > > Hey Matt,
> > >
> > > Sure! I attached the debug output (UTF-8 encoding) from coreboot.rom
> > > built with the following criteria.
> > >
> > > NDA PSP binaries used:
> > > * TypeId0x01_PspBootLoader_CZN.sbin
> > > * TypeId0x02_PspOS_CZN.sbin
> > > * TypeId0x28_PspSystemDriver_CZN.sbin
> > >
> > > APCBs: Using my own APCBs (instances 0/10/18). I have not modified
> > > them in any way, these exact APCBs work with the proprietary
> > > firmware.
> > >
> > > All other blobs are taken from the `amd_blobs` repo as you
> > > suggested.
> > >
> > > --
> > > Joursoir
> > >
> > > On Mon, 15 Dec 2025 11:04:13 -0600
> > > Matt DeVillier <[email protected]> wrote:
> > >
> > > > hi Joursoir,
> > > >
> > > > try using your own ABL (for sodimm) and APCBs, but everything else
> > > > from the amd_blobs repo. That should get you booting at least.
> > > > posting a link to a full log might help better understand the
> > > > issue, since you appear to be getting some debug output.
> > > >
> > > > cheers,
> > > > Matt
> > > >
> > > > On Mon, Dec 15, 2025 at 5:18 AM Joursoir <[email protected]>
> > > > wrote:
> > > >
> > > > > Thank you for the response. It took me a while to reply because
> > > > > I have been testing different combinations of PSP images, as you
> > > > > suggested that mixing different PSP firmware is not expected to
> > > > > work.
> > > > >
> > > > > >From the logs I can see:
> > > > >   [DEBUG] Family_Model: 00a50f00
> > > > >
> > > > > So this is Cezanne silicon, not Renoir.
> > > > >
> > > > > Unfortunately, I have not been able to boot my board using the
> > > > > default binaries available under amd_blobs, so I am currently
> > > > > forced to use NDA binaries. Also note that the board uses
> > > > > SO-DIMM memory rather than soldered-down memory.
> > > > >
> > > > > I have tried to replace as many binaries as possible with
> > > > > default ones. However, the following PSP components appear to be
> > > > > irreplaceable on my platform:
> > > > > * TypeId0x01_PspBootLoader_AB_Stage1_CZN.sbin
> > > > > * TypeId0x01_PspBootLoader_CZN.sbin
> > > > > * TypeId0x02_PspOS_CZN.sbin
> > > > >
> > > > > At this point I am not sure what else to try. Any ideas would be
> > > > > appreciated.
> > > > >
> > > > > On Thu, 4 Dec 2025 15:00:45 +0100
> > > > > Felix Held <[email protected]> wrote:
> > > > >
> > > > > > Hi,
> > > > > >
> > > > > > The Cezanne FSP binaries are only expected to work on Cezanne
> > > > > > silicon; not sure if you're trying this on Renoir or Cezanne.
> > > > > > The Cezanne FSP expects that the corresponding Cezanne PSP
> > > > > > firmware from the same repo is used; mixing some different
> > > > > > PSP firmware with the Cezanne FSP isn't expected to work. I
> > > > > > don't remember if in that case things will fail inside FSP-M
> > > > > > or FSP-S though. This isn't exactly an FSP issue, but a
> > > > > > combining mismatching parts issue. Only the soldered-down
> > > > > > memory configuration is tested with Cezanne; this shouldn't
> > > > > > result in the symptoms you described though. Both the
> > > > > > Chromebooks and the Cezanne reference board worked when I
> > > > > > tried that the last time, but that was quite a while ago.
> > > > > >
> > > > > > Regards,
> > > > > > Felix
> > > > > > _______________________________________________
> > > > > > coreboot mailing list -- [email protected]
> > > > > > To unsubscribe send an email to [email protected]
> > > > >
> > > > > --
> > > > > Joursoir
> > > > > _______________________________________________
> > > > > coreboot mailing list -- [email protected]
> > > > > To unsubscribe send an email to [email protected]
> > > > >
> > >
> > >
>
>
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