This doc is for the SoC in the Pi 4B. I personally haven’t read through it yet, but glancing at the table of contents I see there are many goodies here. Hooray for not having to look at Pi 4B DTS (device tree) sources as documentation! 😇
Based on feedback in the Discord channel (thanks Samer!) I reworked the status page to scale better across future releases and provide more information in an easier-to-consume fashion.
Not only does the new version aggregate all of the release notes, but provides an easy way for locating firmware feature, development status, OS support and standards compliance reports for every new release. All of the OS and firmware status reports will be per release, meaning you will be able to reference old reports if needed.
I’ve added a new link to menu – a status page, providing a fairly-detailed view of things working or broken in the current release. It probably needs to be split into more pages to separate UEFI implementation from operating system-visible aspects like SMBIOS and ACPI, but it’s a place to start.
The Pi 3B/3B+ is still a great platform to explore UEFI functionality, and it’s EBBR-compliant UEFI boot for Linux (that is, with device tree) is still way better than messing with config files. Plus you can do PXE and iSCSI. Isn’t that awesome? Or port Doom to it :-).