The State Of Open-Source Firmware / Coreboot On Intel Tiger Lake
3mdeb used Intel's Reference Validation Platform (RVP) for evaluating the open-source firmware state on Tiger Lake, including the state of Coreboot on the platform. Of course, that's just an internal Intel test platform and not something that end-users can easily procure. Unfortunately when it comes to retail Intel platforms supporting Coreboot / open-source firmware, there isn't many options out there besides the likes of various Google Chromebooks. There is also still the matter of Intel's Firmware Support Package (FSP) being a binary blob.
Sadly it's still difficult finding Coreboot ports for readily available Tiger Lake platforms.
In any event those wanting to learn a bit more about open-source firmware possibilities on Intel Tiger Lake can see the 3mdeb blog for details.
3mdeb is also pursuing interesting open-source work for Alder Lake S.
Likely of interest to more end-users/readers is the work announced this week also being carried out by 3mdeb and that is for porting Coreboot to a retail Alder Lake platform. The 3mdeb engineers are working on bringing Coreboot / open-source firmware to the MSI PRO Z690-A WiFi DDR4 motherboard that's readily available in retail channels. There still is the matter of the FSP blob, but at least this is a path for end-users/enthusiasts to actually get Coreboot up and running on a modern/current-generation desktop platform.