Hi, I m using Samsung K9WBG08U1M NAND. And after looking at Samsung's product decoder sheet, I can decode it's size as 4GiB. However, on matching it's signature id i.e. 0xD5 in 'nand_flash_ids[]' table, I can see it's size defined to be 2GiB by mtd framework. Is there any specific reason for doing so? Regards, Vaibhav.