Hello, Try to boot linux in legacy mode(enable CSM and set all boot options to legacy mode), and run getpir, i've made my table this way. I also recommend to enable AGESA debug output to serial port, it can help you with ddr training problems.
29 нояб. 2017 г. 12:40 пользователь "Gergely Kiss" <mail.g...@gmail.com> написал: > Hi Sergej, > > thanks a lot for your feedback, it's much appreciated. > > As far as I can tell, my board only has 8 IRQ slots while the one you > ported has 10. I believe this is (partially) due to the number of PCI-e > slots does not match (the Biostar board has one extra PCI-e x16 slot) so > there definitely is a difference regardless of sharing the same chipset. > > Can you please share some information on how you fetched the PIRQ table > from the vendor firmware? I have tried the (now deprecated) getpir utility > but it could not find a PIRQ table neither in the vendor firmware nor in > the memory. > > Is there some other tool I could use? > > Thanks, > Gergely > > On 28 November 2017 at 19:59, Sergej Ivanov <getin...@gmail.com> wrote: > >> Hello, >> >> Almost everyone socket AM1 boards have same PIRQ tables. While porting >> Biostar AM1ML i've dumped this table from vendor UEFI (using old method, >> that was depricated long time ago). BTW don't forget to remove additional >> SIO config code from romstage. >> >> 28 нояб. 2017 г. 19:16 пользователь "Gergely Kiss" <mail.g...@gmail.com> >> написал: >> >>> Hi All, >>> >>> my name is Gergely Kiss and I'm currently working on porting Coreboot >>> to the ASUS AM1I-A board. >>> >>> I'm a great fan of open source software, I've contributed a few times to >>> some well-known projects like Squid, Monodevelop and Openwrt, just to name >>> a few. >>> >>> I would need a little bit of help from the devs about how to create the >>> PCI IRQ routing table for my board (the easiest way possible). >>> >>> I'm using the Biostar AM1ML board as a template as it looks to be a very >>> similar board as the one I have. The only differences I can see is the >>> SuperIO (ITE 8623E) & the audio chip (Realtek ALC887-VD) and also some >>> minor things with the board layout so I'm not expecting to have too much >>> difficulties. >>> >>> Looking at the file https://review.coreboot.org/cg >>> it/coreboot.git/tree/src/mainboard/biostar/am1ml/irq_tables.c, the >>> following questions came to my mind: >>> >>> * Do I really have to follow the "long way" as outlined in the Wiki page >>> at https://www.coreboot.org/Creating_Valid_IRQ_Tables? Couldn't I just >>> fetch the routing table from the OEM BIOS somehow and implement it in the >>> source? >>> * What's the meaning of the fields "link" & "bitmap"? Are these common >>> for all boards with the same chipset? Where should I look up this >>> information? >>> * I believe I have to create as many entries within the struct as many >>> IRQ slots exist for the board. Am I right? >>> >>> I found a table in the board's manual (attached) which looks useful but >>> I'm afraid it might not contain all the information I need to construct a >>> valid routing table. >>> >>> As for the SuperIO chip, I think I won't have too much issues getting it >>> to work as it looks like ITE SIO chips are quite similar from the >>> developer's perspective but I still miss having a datasheet available. I'll >>> try to reach out to the vendor to see if they are willing to share a >>> datasheet with me. >>> >>> Any help from you guys is much appreciated. >>> >>> Thanks & Regards, >>> Gergely >>> >>> >>> -- >>> coreboot mailing list: coreboot@coreboot.org >>> https://mail.coreboot.org/mailman/listinfo/coreboot >>> >> >
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