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mtd: rawnand: Add support for manufacturer specific lock/unlock operation

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Add nand_lock() & nand_unlock() for manufacturer specific lock & unlock
operation while the device supports Block Portection function.

Signed-off-by: Mason Yang <masonccyang@mxic.com.tw>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/1583220084-10890-2-git-send-email-masonccyang@mxic.com.tw
This commit is contained in:
Mason Yang
2020-03-03 15:21:21 +08:00
committed by Miquel Raynal
parent e015d72f32
commit 92270086b7
2 changed files with 39 additions and 2 deletions
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5
include/linux/mtd/rawnand.h
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@@ -1077,6 +1077,8 @@ struct nand_legacy {
* @manufacturer: [INTERN] Contains manufacturer information
* @manufacturer.desc: [INTERN] Contains manufacturer's description
* @manufacturer.priv: [INTERN] Contains manufacturer private information
* @lock_area: [REPLACEABLE] specific NAND chip lock operation
* @unlock_area: [REPLACEABLE] specific NAND chip unlock operation
*/
struct nand_chip {
@@ -1136,6 +1138,9 @@ struct nand_chip {
const struct nand_manufacturer *desc;
void *priv;
} manufacturer;
int (*lock_area)(struct nand_chip *chip, loff_t ofs, uint64_t len);
int (*unlock_area)(struct nand_chip *chip, loff_t ofs, uint64_t len);
};
extern const struct mtd_ooblayout_ops nand_ooblayout_sp_ops;