Bitmain Antminer controlboards run linux and are perfectly capable of running Mujina firmware. Mujina on Antminers represents an incredible opportunity for increased performance, customization and of course freedom for these machines.
Initial proof-of-concept has been completed: Mujina running on a S19j Pro with a stock amlogic controlboard works.
So far, building Mujina and loading on Amlogic controlboards is a very manual process. This topic is for tracking progress.
I mean, it would be nice to support bitmain antminer and a key feature would be to have a PSU bypass so we don’t have to use loki kits or sort of the half-ass solution from some of the other third-party firmwares. Is the thought to just add support for Bitaxe Antminer miners on a per-case basis, or create a framework so you could add it if you wanted to support a particular miner?
It’s both, really. Internally, we’re trying to build Mujina as a framework of modular components: ASIC chips, power supplies, fan controllers, temp sensors, and so on. Then we build particular miners out of those pieces. A “supported miner” is just a built-in recipe for how one system composes them together.
The goal is that supporting a new miner is something you can do mostly by describing how it wires the existing pieces together. And when a piece is missing, you add it: a new ASIC gets a chip driver, a new PSU or fan controller gets a peripheral driver, and it all slots into the same framework for the next person to reuse.
Mujina is working on my S19XP with amlogic control board (LuxOS preinstalled).
Remaining issues:
UART is stuck at 115200, advancing this to 3M caused us to loose contact with the chips. Not sure why, but it’s hashing happily at 110MHz.
This relied on LuxOS to handle the secure boot exploit. Eventually it may be nice to not need LuxOS at all.
Code is here: GitHub - keegreil/mujina: Open-Source Bitcoin Mining Firmware · GitHub
Let me know if/how you’d like this packaged up into a PR. Cheers!