Add support to VELL Chromebook

[gabriel-lando]

Hello, I have a VELL Chromebook. Based on the coreboot documentation, this model should be supported, but when I try to run the firmware-util.sh script, I receive this error message:

Device: ERROR: unknown or unidentifiable device (VELL)
Platform: (unrecognized)
Fw Type: Stock ChromeOS w/RW_LEGACY
Fw Ver: Google_Vell.14505.485.0 (05/23/2023)
Fw WP: Disabled

Is it possible to add support to this platform? I tried to build by myself the coreboot with edk2 for this platform, but I couldn't succeed. Is there any tutorial that I can follow to build and install a custom firmware?

Thanks

[MrChromebox]

Based on the coreboot documentation, this model should be supported

the MrChromebox firmware distribution does not support every board that the coreboot project does. It tries to support all x86_64 ChromeOS devices. New boards are released all of the time, and if based on an older platform, support isn't added until someone requests it. VELL was released well after the rest of the Alderlake-based boards.

Is it possible to add support to this platform?

done

I tried to build by myself the coreboot with edk2 for this platform, but I couldn't succeed.

can't help you there without knowing what the problem was

Is there any tutorial that I can follow to build and install a custom firmware?

https://docs.chrultrabook.com might have something

[gabriel-lando]

It worked :) Thanks a lot

[junnikokuki]

It worked :) Thanks a lot

What os do you use? Linux or Windows?

[gabriel-lando]

It worked :) Thanks a lot

What os do you use? Linux or Windows?

Sorry for the late response :D I'm using Windows. The OS works well, it automatically installed almost all drivers. The firmware has some issues with C-states, so sometimes the hibernation doesn't work well, but except for that, everything works fine