Introduction - If you have any usage issues, please Google them yourself
It is now YAFFS2- original YAFFS (YAFFS1) only supports 512-byte page
NAND and is now deprecated. YAFFS2 supports 512b page in YAFFS1
compatibility mode (CONFIG_YAFFS_YAFFS1) and 2K or larger page NAND
in YAFFS2 mode