[coreboot-gerrit] Change in coreboot[master]: mb/clevo/tgl-u: Add Clevo NV4x Tiger Lake laptop support

[Michał Kopeć (Code Review)]

Attention is currently required from: Felix Singer, Michał Żygowski, Angel Pons, Michael Niewöhner.
Michał Kopeć has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62498 )

Change subject: mb/clevo/tgl-u: Add Clevo NV4x Tiger Lake laptop support
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Patch Set 12:

(2 comments)

File src/mainboard/clevo/tgl-u/variants/baseboard/devicetree.cb:

https://review.coreboot.org/c/coreboot/+/62498/comment/f436bfc8_39689356 
PS1, Line 58: 	register "LpmStateDisableMask" = "
            : 		LPM_S0i2_1 |
            : 		LPM_S0i2_2 |
            : 		LPM_S0i3_1 |
            : 		LPM_S0i3_2 |
            : 		LPM_S0i3_3 |
            : 		LPM_S0i3_4
            :
> Why does s0i2. […]

Vendor firmware does this, I assumed there was a reason for it, but maybe there isn't? :D

File src/mainboard/clevo/tgl-u/variants/nv4x/overridetree.cb:

PS3:
> Are any PCIe RPs wired to a slot?

Yes, one CPU RP wired to SSD slot and one PCH RP wired to WiFi card slot