[U-Boot] Using YAFFS in u-boot

Does anyone have a "cheat sheet" for how to use yaffs2 in u-boot? There's not much documentation and google isn't turning up anything useful (i.e. u-boot command example(s)).

I'm trying to use a portion of the NAND in my OMAP3 system for YAFFS (and have it interoperate with Linux).

Thanks in advance!