Hi, Did any one tried to use yaffs2 on onenand ? When I looked at the onenand_base.c, the oobinfo is as per the following format. /** * onenand_oob_64 - oob info for large (2KB) page */ static struct nand_oobinfo onenand_oob_64 = { .useecc = MTD_NANDECC_AUTOPLACE, .eccbytes = 20, .eccpos = { 8, 9, 10, 11, 12, 24, 25, 26, 27, 28, 40, 41, 42, 43, 44, 56, 57, 58, 59, 60, }, .oobfree = { {2, 3}, {14, 2}, {18, 3}, {30, 2}, {24, 3}, {46, 2}, {40, 3}, {62, 2} } }; But I have not seen code in onenand_base.c for doing the autoplace of the yaffs tags into the oobfree area as its there in nand_base.c Can the yaffs2 work with current onenand_base.c ? Thanks Naushad