As part of FreeBSD's 14.0 deprecation plans, the MIPS architecture port has been removed. The following information is kept as a historical reference.
There was once a FreeBSD/mips TODO List containing items that we would have liked to see, but it is now OBE.
There are a variety of MIPS32 platforms supported.
The most popular / tested is the Atheros MIPS SoCs.
The CPU families in question (in 32-bit mode):
Specific boards (non-exhaustive):
May other devices have an AR71xx, AR724x, AR91xx, AR933x, AR934x, QCA955x in them. Any of those boards will work - provided enough RAM (32MB) and flash (8MB) is available to run FreeBSD-HEAD.
See Octeon article.
The 32-bit and 64-bit MIPS platforms (both big and little endian) can be tested under various emulator environments. Please see MipsEmulation for further information.
A very simple (and perhaps out of date) overview can be found here - BuildingMIPS .
AdrianChadd has built a set of build scripts to build MIPS/ARM access point images: https://github.com/freebsd/freebsd-wifi-build/ .
Cavium Simulator – How to run the Cavium Network Simulator on FreeBSD with a FreeBSD kernel