Raspberry Pi 5 support (OpenBSD)

I found it funny that the missing pcie storage hat support had a reason, but the wifi issue is just 'doesn't work'. I wonder if it's a totally unexplored problem.

Yes. I run my mail server on a Raspberry Pi 4 on OpenBSD. Aside from having to flash an SD card (and having the install program install the sets to… itself) everythhing works exactly as you expect on any other OpenBSD install. You can’t really stray far outside the list of supported hardware unless you plan to roll things yourself, however. Eg, I’ve discovered that Waveshare carrier boards for the CM4 are hit or miss. NetBSD has much more comprehensive support for Raspberry Pis and the various accoutrements.

Pretty excited about Pi 5 support!

Heads-up: OpenBSD does not yet support power-saving on anything Arm64. The CPU will be running at full throttle the entire time, which will be a showstopper in some cases.

Couple of caveats:

1. Last I tried about 9mo. ago on a Pi 4, you still need 3rd party firmware to make use of >3gb RAM. Unfortunately, I couldn't get that to work.

2. Even though the full image has the complete software set, the installer can't see it; you have to either use the network (I have a datacap, it's a pain point with FOSS sometimes), or load another drive with the sets.

Besides reading documentation, before installing, you should ensure you have:

- Latest firmware installed (much easier to upgrade them from Linux)

- UEFI.

> How is this the OS's sole role?

Embedded Design.

A PWM driver (or a hardware timer) will handle the nanosecond-to-nanosecond wait states and counts, but the OS has to still setup the hardware timer to send the right PWM wave down to the system.

Besides, the OS should have some degree of custom fan controls for any modern computer, embedded or not. My PC can control all of my fans for example.