I assume you guys are familiar with www.opencores.org There is a GNU licensed System-on-Chip (SoC) called WISHBONE that has developed a pretty good following. If you want to do Linux - like cores, I think you will find that WISHBONE has matured into the one-and-only open source SoC. Looking at the first paragraph of the descriptioni of Wishbone you will find:
"The WISHBONE standard is not copyrighted, and is in the public domain. It may be freely copied and distributed by any means. Furthermore, it may be used for the design and production of integrated circuit components without royalties or other financial obligations. " Ford-N0FP [EMAIL PROTECTED]
