I think serial is to the southbridge and out to LPC. I don't know if there is a working PCI serial device with the AGESA based systems.
Regards, Marc On Wed, Nov 8, 2017 at 9:28 AM Abhishek Chaudhary <[email protected]> wrote: > Hi Everyone, > > I am working onAMD OliveHillPlus board that has AMD G-series - Steppe > eagle (Mullins, Family 16h Model 30h-3Fh). > > I am running coreboot that calls AGESA APIs to initialize the platform. > > What i observed is the GPP PCIe ports (Device 2, Func 1,2,3,4) > doesn't indicate link as active unless amdinitreset, amdinitearly, > and amdinitpost calls are made. > > My question is, in Bootlog for OliveHillPlus has serail prints before any > AGESA calls. Since serial port must be connected on GPP PCIe port and these > ports are not active before first 3 AGESA calls, how serial port is able to > communicate? > > When i connected a OXPCI serial card on mini PICe port that Coreboot > supports, the serial card was not getting initialized by Coreboot. > > Is there some way to configure the PCIe ports early enough (before making > any AGESA call)? > > Any inputs will be very helpful. > > Thanks, > Abhishek. > -- > coreboot mailing list: [email protected] > https://mail.coreboot.org/mailman/listinfo/coreboot -- http://marcjonesconsulting.com
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