[coreboot] VGA doesn't work on Mohon Peak

[Kuzmichev Viktor]

I did a bit more debugging and actually was able to test the board with 
different graphics card. So, with the nvidia adapter it works just fine, 
whereas with the aspeed controller in the same PCIe slot it hangs.

I put in attachment to this email two logs, one with nvidia graphics 
card and another with aspeed controller. However, there's something else 
I consider worth mensioning. After SeaBIOS outputs 'Running option rom 
at c000:0003', there also some output appears on the monitor:

AST1300/2300 VGA True Color Graphics and Video Accelerator
VBIOS Version 0.96.00
DRAM Size: 64MB

-Viktor

On 19/03/15 21:20, Marc Jones wrote:
>
> Hi Viktor,
>
> On Thu, Mar 19, 2015 at 4:23 AM Kuzmichev Viktor 
> <kuzmichevviktorv at gmail.com <mailto:kuzmichevviktorv at gmail.com>> wrote:
>
>     Hello,
>
>     I'm using coreboot + SeaBIOS on Mohon Peak CRB. And I've tried to make
>     VGA work for a while now. I used this article as a guide:
>     http://www.coreboot.org/VGA_support
>
>
> Since it is an add-in card, you don't need to extract the VBIOS and 
> put it into cbfs. The VBIOS on the card will run during the PCI card 
> enumeration. It seems that there is a problem with that specific 
> aspeed card and/or VBIOS. You may want to try a different card to 
> avoid the issue. Please let us know the results if you debug that card 
> further.
>
> Regards,
> Marc
>
>     Extracting VGA BIOS from vendor BIOS image did not work:
>     $ ./bios_extract EDVLCRB1.86B.0043.R00.1408290947_MPK.bin
>     Using file "EDVLCRB1.86B.0043.R00.1408290947_MPK.bin" (8192kB)
>     Error: Unable to detect BIOS Image type.
>
>     Then, I've downloaded VGA BIOS from here:
>     http://www.aspeedtech.com/support.php
>     Mohon Peak uses Aspeed VGA controller AST1300.
>
>     And also, I've extracted Video ROM from /dev/mem:
>     # dd if=/dev/mem of=vgabios.bin bs=1k count=32 skip=768
>
>     Neither of them worked. Here's what I've tried. I've tried to add them
>     via coreboot's menuconfig (' Add VGA BIOS image' option). I've
>     tried to
>     add them manually via cbfstool as an optionrom and as a raw file. I've
>     tried to put them in CBFS under vgaroms/ directory. Here's my latest
>     ROM-file layout:
>     $ ./build/cbfstool build/coreboot.rom print
>     coreboot.rom: 8192 kB, bootblocksize 1024, romsize 8388608, offset
>     0x600000
>     alignment: 64 bytes, architecture: x86
>
>     Name                           Offset     Type  Size
>     cmos_layout.bin                0x600000   cmos_layout 1352
>     pci1a03,2000.rom               0x600580   optionrom 32768
>     fallback/romstage              0x6085c0   stage 26616
>     fallback/ramstage              0x60ee00   stage 59904
>     fallback/payload               0x61d840   payload 56100
>     config                         0x62b3c0   raw 4532
>     revision                       0x62c5c0   raw          708
>     pci8086,1f41.rom               0x62c8c0   raw 61952
>     vgaroms/pci1a03,2000.rom       0x63bb00   raw 32768
>     img/Memtest86+(5.01)           0x643b40   payload 159492
>     (empty)                        0x66aa80   null  939288
>     mrc.cache                      0x74ffc0   (unknown) 65536
>     cpu_microcode_blob.bin         0x760000   microcode 83968
>     (empty)                        0x774840   null  46936
>     fsp.bin                        0x77ffc0   (unknown) 372736
>     (empty)                        0x7db000   null  150424
>
>     The entries pci1a03,2000.rom are the VGA ROMs there. I also tried to
>     remove either of them. I've tested with coreboot option 'Run VGA
>     Option
>     ROMs' checked and unchecked without any difference. In SeaBIOS I set
>     'VGA Hardware Type (coreboot linear framebuffer)' as the other options
>     are None, GeodeGX2 and GeodeLX, so coreboot linear framebuffer seemed
>     more logical.
>
>     I saw this mailing list:
>     http://www.seabios.org/pipermail/seabios/2015-January/008588.html
>     but found no solution there and it seems not to be my case as my board
>     does not hang.
>
>     I put coreboot and SeaBIOS output in the attachment. Debug levels
>     set to
>     7 for both. In coreboot only 'Output verbose CBFS debug messages'
>     checked in 'Debugging' submenu.
>
>     Is there anything I'm doing wrong or simply missing?
>
>     Viktor
>     --
>     coreboot mailing list: coreboot at coreboot.org
>     <mailto:coreboot at coreboot.org>
>     http://www.coreboot.org/mailman/listinfo/coreboot
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.coreboot.org/pipermail/coreboot/attachments/20150414/01b1caf7/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: seabios_aspeed.log
Type: text/x-log
Size: 6527 bytes
Desc: not available
URL: <http://www.coreboot.org/pipermail/coreboot/attachments/20150414/01b1caf7/attachment-0002.log>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: seabios_nvidia.log
Type: text/x-log
Size: 24620 bytes
Desc: not available
URL: <http://www.coreboot.org/pipermail/coreboot/attachments/20150414/01b1caf7/attachment-0003.log>