The BCM on the pi is not open source friendly and some drivers are reverse engineered with some bits needing binary blobs. Honestly it's not a great SoC and ori

The BCM on the pi is not open source friendly and some drivers are reverse engineered with some bits needing binary blobs. Honestly it's not a great SoC and originally started life as an EoL'd set top box chip if I'm not mistaken. I mean it boots from the GPU because booting from the CPU was not secure enough for cable companies or whatever vampires they intended to sell to. That's just one of the goofy quirks.