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mtd: nand: Remove support for block locking/unlocking

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Commit 7d70f334ad ("mtd: nand: add lock/unlock routines") introduced
support for the Micron LOCK/UNLOCK commands but no one ever used the
nand_lock/unlock() functions.

Remove support for these vendor-specific operations from the core. If
one ever wants to add them back they should be put in nand_micron.c and
mtd->_lock/_unlock should be directly assigned from there instead of
exporting the functions.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This commit is contained in:
Boris Brezillon
2017-05-16 00:17:42 +02:00
parent 5771a8c088
commit d4cb37e716
2 changed files with 0 additions and 183 deletions
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10
include/linux/mtd/nand.h
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@@ -44,12 +44,6 @@ void nand_release(struct mtd_info *mtd);
/* Internal helper for board drivers which need to override command function */
void nand_wait_ready(struct mtd_info *mtd);
/* locks all blocks present in the device */
int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
/* unlocks specified locked blocks */
int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
/* The maximum number of NAND chips in an array */
#define NAND_MAX_CHIPS 8
@@ -89,10 +83,6 @@ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
#define NAND_CMD_SET_FEATURES 0xef
#define NAND_CMD_RESET 0xff
#define NAND_CMD_LOCK 0x2a
#define NAND_CMD_UNLOCK1 0x23
#define NAND_CMD_UNLOCK2 0x24
/* Extended commands for large page devices */
#define NAND_CMD_READSTART 0x30
#define NAND_CMD_RNDOUTSTART 0xE0