Bayley Bay is the codename for one of Intel's consumer reference boards for the Bay Trail SoC platform. The Bayley Bay CRB-I sdupports dual-channel DDR3L DIMMs, Bay Trail-I SoC support, and uses the Intel FSP. This Bayley Bay motherboard support with Coreboot has been tested on Ubuntu 14.04, Mint 16, and Fedora 20 using Coreboot's SeaBIOS payload. The only major limitation of this new motherboard support is that S3 suspend support doesn't work.
More information on the Intel Bayley Bay Coreboot support can be found via this commit that introduced the new Bay Trail motherboard support.