Hi Branden, First, welcome and thanks for helping out with my work!
> I wasn't planning on posting unless I could actually contribute > something, but since Keith Hui posted last month about his work on > CBMEM for 440BX and ACPI, I figured I should do some proper testing > and at least post if it worked out. There are certainly something you can contribute, which I'll get to in a moment. > I'm running coreboot on a ASUS P2-99 board with the config copied > straight from P2B. It's not perfect, but it is stable and I haven't > found anything that doesn't work that did with the original firmware. > > Testing I did over the past week: > > 1. Actually made a seperate P2-99 config, I'd been using vanilla P2B > with no renaming for a few months on it. I'd like you to pose your config on the list, so I can see how much different P2-99 is from P2B and if a new mainboard is warranted. Very long ago, I once got a P2-99 by way of a computer discarded by a friend of my father. I later traded it for a P3B-F that I still have today. I remember it uses a 440ZX northbridge, essentially a low-spec BX (2 slots, 512MB max, 4 PCI slots). What I don't remember is the super I/O chip it uses. But from what you wrote, you can run a mostly unmodified P2B build on it, so no new northbridge support should be necessary. > 3. Setup a serial console - seems to work fine. I was using I > different board for flashing anyway, since flashrom doesn't know the > board enable and the asus flasher only works on with original firmware > to find the board enable - it can flash coreboot though if you use the > right flag to tell it to flash the whole rom. As far as I know in this family of boards only P3B-F needs a board enable. Try this flashrom command on the board: # flashrom -p internal and see if a chip is detected. You need to get a i386/i686 build of flashrom to the board. Do you see a chip labelled AS99127F on your board? You may be able to use the flashrom trick for P3B-F [1] to enable internal flashing. > 4. Tried Keith Hui's ACPI patches > (https://review.coreboot.org/c/22067/). It has no problem booting or > restarting, but linux complains about the acpi. Didn't really expect > it to work properly on a different board anyway. Is it complaining about a missing MBRS table? It's an incomplete stub in the P2B board. I'm going to remove that and just include all the motherboard resources it declares in the ASL. > As it stands now, all I've done is run it with a P2B config and not > verified if everything is working as it should, I barely have beginner > knowledge of C and nothing on low level x86 or acpi, so I can't > actually do anything but testing. I can't upload board status for it > since it's a P2-99 not P2B. I'm also still stuck with with using > another board and hot swapping chips to flash roms. I should probably > post on the flashrom list that the board I'm flashing with works as > well as see if anyone knows anything about the asus board enable (it's > getting pretty old). I think the next step is to boot a 100% unmodified P2B build. That should allow you to run board_status (as far as it is concerned you're booting a P2B, albeit on a P2-99 hardware), but to actually do it you need to set yourself up on Gerrit. > > The main reason I'm posting is to say I can test patches the patches > Keith Hui has been working on and post logs. I'd also be glad for any > other recommendations on what I can do to help with this system. > Thanks again! To recap, our next steps: Show us your P2-99 Kconfig. Boot test an unmodified P2B build. Get Gerrit access for yourself so you can run board_status on it. Worse come to worst, I'll submit a asus/p2-99 patch for you. Check if you really need a board enable for flashrom. I'll submit a patch to move P2B to EARLY_CBMEM_INIT. Boot test it as soon as you can, since this is required to keep this board in tree past the real-soon-now 4.7 release. Then I'll update the ACPI patch for P2B (needs more restructuring based on feedbacks I received). It should not complain about missing stuff anymore. We'll go from there. If you need help pulling in a patch, I'll see how/if I can help. Keith [1] https://www.coreboot.org/Board:asus/p3b-f -- coreboot mailing list: [email protected] https://mail.coreboot.org/mailman/listinfo/coreboot
