Change in coreboot[master]: mb/supermicro/x11ssh: Add Supermicro X11SSH-TF

[Maxim Polyakov (Code Review)]

Maxim Polyakov has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/32734 )

Change subject: mb/supermicro/x11ssh: Add Supermicro X11SSH-TF
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Patch Set 71:

(3 comments)

https://review.coreboot.org/c/coreboot/+/32734/68/src/mainboard/supermicro/x... 
File src/mainboard/supermicro/x11ssh/variants/tf/devicetree.cb:

https://review.coreboot.org/c/coreboot/+/32734/68/src/mainboard/supermicro/x... 
PS68, Line 28: register "SkipExtGfxScan" = "1"
> Works without FSP knowing about that device as it only claims 16MiB BAR.

Will the video also be output to Aspeed VGA If I install an external graphics card in the PEG port?

https://review.coreboot.org/c/coreboot/+/32734/68/src/mainboard/supermicro/x... 
PS68, Line 209: device pci 01.0 on  end # PCI Slot
> unused

Sorry, it seemed to me that PEG0 is used for the NVMe M.2

https://review.coreboot.org/c/coreboot/+/32734/68/src/mainboard/supermicro/x... 
PS68, Line 210: device pci 01.1 on
> PEGx8 slot, […]

- I think it would be better to use width limit. This allows SFP to do bus training only for the PCIe data lines that are used in the slot/connector.

- In my case, PEG Gen3 only works with SRCCLKREQ/CLKSRC.