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Commit 53552d22 authored by Artem Bityutskiy's avatar Artem Bityutskiy Committed by David Woodhouse
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mtd: introduce a macro for max NAND ID sequence length 



Introduce a helpful macro for the maximum NAND ID sequence length instead of
using the "8" magic number.

Signed-off-by: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Acked-by: default avatarHuang Shijie <shijie8@gmail.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent ecb42fea

include/linux/mtd/nand.h

+4 −1
Original line number Diff line number Diff line
@@ -546,6 +546,9 @@ struct nand_chip { 
#define NAND_MFR_MACRONIX	0xc2

#define NAND_MFR_EON		0x92



/* The maximum expected count of bytes in the NAND ID sequence */

#define NAND_MAX_ID_LEN 8



/*

 * A helper for defining older NAND chips where the second ID byte fully

 * defined the chip, including the geometry (chip size, eraseblock size, page
@@ -593,7 +596,7 @@ struct nand_flash_dev { 
			uint8_t mfr_id;

			uint8_t dev_id;

		};

		uint8_t id[8];

		uint8_t id[NAND_MAX_ID_LEN];

	};

	unsigned int pagesize;

	unsigned int chipsize;