The Asus F2A85-M and F2A85-M LE boards are currently supported in Coreboot. However, as the wiki[0] page emphasis, the F2A85-M PRO version of the board is the more widely available one.
A few weeks ago, GNUtoo (CC-ed) and I decided to get one each and add Coreboot support to those. It looks like the main difference between the F2A85-M and the F2A85-M PRO is the Super I/O, according to the wiki[0].
A year ago, Alec Ari (CC-ed) submitted support for that Super I/O, his code[1] was not merged and eventually, Matt DeVillier (CC-ed) added support for that chip (but apparently missing early serial support).
I wonder if either Alec or Matt have the F2A85-M PRO in hands and whether they did write code to support the board, as the wiki[0] suggests. If so, it would be useful to send it as-is so that I could have a base to add support for the board.
Otherwise, I will start "from scratch", using the F2A85-M code as a base.
Note that I'm new to working on low-level on x86 hardware (but I'm used to ARM hardware), so I may need some pointers here and there to get this done properly.
Generally speaking, any help regarding that board is welcome!
Thanks!
[0]: http://www.coreboot.org/Board:asus/f2a85-m#F2A85_series_status [1]: http://review.coreboot.org/#/c/4589/ [2]: http://review.coreboot.org/#/c/10232/