_oob_read returns number of bitflips on success while
bbt_nand_read should return 0.
Fixes: 2d49e49b18 ("mediatek: bmt: use generic mtd api")
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
(cherry picked from commit f183ce35b8)
This NAND flash remapping method is used on newer MediaTek devices with NAND
flash.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry-picked from commit 06382d1af7)
Used by the mapping implementation to indicate that no backing block is
available
Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry-picked from commit b4c7f8c5f7)
