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mtd: nand: add nand_check_erased helper functions

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Add two helper functions to help NAND controller drivers test whether a
specific NAND region is erased or not.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Boris BREZILLON 2015-09-03 18:03:38 +02:00 • committed by Brian Norris
parent db66e32e0d
commit 730a43fbc1
2 changed files with 133 additions and 0 deletions
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5
include/linux/mtd/nand.h
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@ -1030,4 +1030,9 @@ struct nand_sdr_timings {
/* get timing characteristics from ONFI timing mode. */
const struct nand_sdr_timings *onfi_async_timing_mode_to_sdr_timings(int mode);
int nand_check_erased_ecc_chunk(void *data, int datalen,
void *ecc, int ecclen,
void *extraoob, int extraooblen,
int threshold);
#endif /* __LINUX_MTD_NAND_H */