ajokela
commented
1 year ago @samuk thanks for checking out my write-up! I am really unfamilar with OpenWRT. From the bit of sleuthing I did after I saw your comment, it looks like out-of-box the RPi CM4 should work. Seeed Studio has a router board that they say is specifically for OpenWRT and the CM4 - https://www.seeedstudio.com/Rapberry-Pi-CM4-Dual-GbE-Carrier-Board-p-4874.html.
If I understand the concept of device overlays (here is an explainer: https://bootlin.com/blog/using-device-tree-overlays-example-on-beaglebone-boards/), there would need to be overlays that OpenWRT would need to include to be able to use the alternatives to the RPi CM4. I'm really versed on things-overlays, so I could have this wrong.'
My intent for making simple routers using the compute modules is something along the lines of this: https://kifarunix.com/configure-ubuntu-20-04-as-linux-router/
samuk
Your CM4 comparison was useful. I did a bit of looking around here: https://community.twistedfields.com/t/alternative-cm4-modules/334
I saw you were planning to do a router, It's also a use case I'm interested in. Did you consider looking at OpenWRT for it? They support the A311D https://github.com/hyphop/khadas-openwrt#readme
Some Wifi cards/ carrier boards I've looked at are here: https://github.com/markqvist/Reticulum/discussions/179