[coreboot-gerrit] [M] Change in coreboot[master]: soc/intel/alderlake: Add romstage early graphics support

[Jérémy Compostella (Code Review)]

Attention is currently required from: Bora Guvendik, Anil Kumar K, Hannah Williams, Cliff Huang, Paul Menzel, Angel Pons, Arthur Heymans, Tarun Tuli, Nico Huber, Michał Żygowski, Subrata Banik, Swift Geek (Sebastian Grzywna), Elyes Haouas.

Jérémy Compostella has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/70303 )

Change subject: soc/intel/alderlake: Add romstage early graphics support
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Patch Set 47:

(2 comments)

File src/soc/intel/alderlake/Kconfig:

https://review.coreboot.org/c/coreboot/+/70303/comment/265398a3_59962bac 
PS42, Line 211: 0xfa000000
> > I understand but the change you have recommended, libgfinit does not run anymore in both romstage  […]

I am sorry, were you trying to respond ?

File src/soc/intel/alderlake/romstage/fsp_params.c:

https://review.coreboot.org/c/coreboot/+/70303/comment/ad894727_370ca2fb 
PS46, Line 427: 	m_cfg->GttMmAdr = CONFIG_GFX_GMA_DEFAULT_MMIO;
> for user without LIBGFXINIT config being selected this value could be 0. […]

I guarded it with `HWBASE_STATIC_MMIO` as `CONFIG` cannot work with non-boolean `CONFIG_GFX_GMA_DEFAULT_MMIO`.