this month we will work on ALIX platforms and will look into your issue. Truly binary you sent looks really weird - more like Option ROM then BIOS. We have to test coreboot on 2d13 (or similar board) and let you know it makes sense to switch. Do you have ability to recover that platform? If not I would recommend you to order http://pcengines.ch/lpc1a.htm to make sure you will not demage platform during firmware upgrade.
I assume you tried recent BIOS: http://pcengines.ch/alix2.htm ?