kernel spi-nand driver leaves this field empty and let mtd set it later.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
(cherry-picked from commit 6fa50e26e7)
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)
Copy from the previously mapped block (in case it was remapped already)
Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry-picked from commit 7d1e2be160)
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)
This does not have spare blocks for remapping, and it is also not suitable
for random write access. It only skips over bad blocks on linear writes of an
image to a partition. As such, it is really only suitable for the kernel
partition, or other partitions with mostly static data
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This can be used to support ubi on top of mtk_bmt without reflashing the
boot loader. The boot loader + factory + kernel area is covered, while the
rest is passed through as-is
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Add support for showing remapped blocks and garbage collecting old
remapped blocks triggered by using the mark_good/mark_bad files
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Preparation for supporting BMT on MT7621. Move source files to the files/
subdirectory in order to simplify maintenance
Signed-off-by: Felix Fietkau <nbd@nbd.name>
