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nand: Make NAND lock status compatible with Micron

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Micron NAND flash (e.g. MT29F4G08ABADAH4) BLOCK LOCK READ STATUS is not
the same as others.  Instead of bit 1 being lock, it is #lock_tight.
To make the driver support either format, ignore bit 1 and use only
bit 0 and bit 2.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Joe Hershberger
2012-08-22 16:49:45 -05:00
committed by Scott Wood
parent 33b1d5cae3
commit e70bfa2986
3 changed files with 7 additions and 4 deletions
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include/nand.h
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@@ -141,7 +141,6 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts);
#define NAND_LOCK_STATUS_TIGHT 0x01
#define NAND_LOCK_STATUS_LOCK 0x02
#define NAND_LOCK_STATUS_UNLOCK 0x04
int nand_lock(nand_info_t *meminfo, int tight);