[U-Boot] Adding a new board

I have a quick question about adding a board to the u-boot project. I would like to submit my code for review and subsequent inclusion in the project, however the branch I would like to base my code on is the u-boot-nand-flash. Is it possible/appropriate to add my board to that branch or do I have to wait until the changes in that branch are merged with the main project and then submit?

Thanks.

Ron Madrid