[coreboot] Haswell port

Zoran Stojsavljevic zoran.stojsavljevic at gmail.com
Sat Jul 29 12:18:53 CEST 2017


Dobro Pozalovat6 na Coreboot.. Esli voproci vozniknut/est6, prosto
posilaite ssilki. :-)

Gde bi mne konec bil kogda/esli bi ja Nemeckij boltal hotja na pol-Russkogo
?! :-((

Udaci!
Zoran

On Sat, Jul 29, 2017 at 6:57 AM, Konstantin Novikov <theshtabel at gmail.com>
wrote:

> Hello again, coreboot community!
>
> Thanks a lot Zoran Stojsavljevic and Nico Huber for their help and
> answers. You're lead us in "GFX-way", so it was a right direction.
> At first, we're added our PCI id in two structures (map_oprom_vendev and
> pci_device_ids) in northbridge/intel/haswell/gma.c. But after this we're
> see only black screen on display, no any BIOS/Linux output.
> gma_setup_panel(dev) - this function was critical for us.
>
> gtt_write(DDI_BUF_CTL_A, DDI_BUF_IS_IDLE | DDI_A_4_LANES |
> DDI_INIT_DISPLAY_DETECTED);
> Without DDI_A_4_LANES in this row we saw the Linux Ubuntu output (without
> any errors) and logging screen. After trying to use some VGA BIOS we're see
> BIOS output and bootsplash too. Linux Ubuntu works correct, fully
> reinstalled and loaded.
>
> Again, thanks Nico and Zoran (от всей души) for help. Coreboot community
> are awesome.
>
> Konstantin Novikov.
>
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