The functions document my reverse engineer findings about nand controller. This code is commented out and is purely for reference as FTL scheme is still unknown. Change-Id: I70edeb4bfb0cbd51b6adc15afa7193dd8f71e8da
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30442 a1c6a512-1295-4272-9138-f99709370657