Patch Set 5:
What does FSP do if we set it to PRIMARY_PCI but there is no
gfx card plugged in?
In this case, IGD should be used, since this option set the priority device only.
Unfortunately, I can not test this with Appollo Lake CPU, because my board doesn't
have the necessary connectors, but it was tested on the boards with Skylake
(CB:32044).
1 comment:
File src/soc/intel/apollolake/romstage.c:
Patch Set #7, Line 259: PrimaryVideoAdaptor
What does it do and why is it needed?
I suppose that it is necessary to select an active graphics device
https://github.com/intel/FSP/blob/dd34b8c451a23c62a972419287021abfb7d01c2d/ApolloLakeFspBinPkg/Include/FspmUpd.h#L144
In the case of Skylake (See CB:32172), when Display_PEG was selected, Linux was output to an external graphics device. At the same time, IGD was also enabled.
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