The article itself contains little to no useful content. What it links to is really the content of the piece.
Perhaps of more interest is the comparison of different single-board computers on Wikipedia.
FSF’s take on it is important to some folks.
One missing piece of info: systems with DDR4 memory often need a blob to train the memory. This is the case with:
It’s not impossible to reimplement this code with a FOSS license. It’s just that nobody has done that yet. And it’s not a big blob, it’s mostly tables IIRC, if you’re paranoid about blobs you could audit the disassembly. I’m okay with these blobs, but of course the FSF wouldn’t be :)
(oh and the article doesn’t mention X1 and i.MX8 – they both have a good graphics situation with nouveau and entaviv)
Also relevant: https://lobste.rs/s/vmphwq/introducing_panfrost_for_mali_midgard
Albeit I don’t think this is mainline yet, so some time off.