Dear Rob Westfall,
In message 63e059e40912161855q31eb64e4h84f8fbbdb088ab44@mail.gmail.com you wrote:
Where exactly is the line for what you have to provide vs what you don't have to provide?
If you want to know exactly, then please read the GPL itself (see file COPYING in the top level directory) or http://www.gnu.org/licenses/gpl-2.0.html
We are building boards that are based on a standard board, but we have obviously had to modify include/config/<boardname> to setup for our hardware and create customized files to support our board. We have NOT modified files outside of customizing a /include/config/<boardname> and creating a board/<boardname> directory based on a existing board that is already released from the cpu vendor.
For a quick summary, see "A Practical Guide to GPL Compliance" at http://www.softwarefreedom.org/resources/2008/compliance-guide.html
Best regards,
Wolfgang Denk