Commit b8f80684 authored by Brian Norris's avatar Brian Norris Committed by Artem Bityutskiy
Browse files

mtd: nand: move NAND_CREATE_EMPTY_BBT flag 



The NAND_CREATE_EMPTY_BBT flag was added by commit:
  453281a9
  mtd: nand: introduce NAND_CREATE_EMPTY_BBT
This flag is not used within the kernel and not explained well, so I
took the liberty to edit its comments.

Also, this is a BBT-related flag (and closely tied with NAND_BBT_CREATE)
so I'm moving it to bbm.h next to NAND_BBT_CREATE, thus requiring that
we use the flag in nand_chip.bbt_options, *not* in nand_chip.options.

Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
Signed-off-by: default avatarArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
parent bb9ebd4e

drivers/mtd/nand/nand_bbt.c

+1 −1
Original line number Diff line number Diff line
@@ -970,7 +970,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc 
			continue;



		/* Create the table in memory by scanning the chip(s) */

		if (!(this->options & NAND_CREATE_EMPTY_BBT))

		if (!(this->bbt_options & NAND_CREATE_EMPTY_BBT))

			create_bbt(mtd, buf, bd, chipsel);



		td->version[i] = 1;

include/linux/mtd/bbm.h

+7 −0
Original line number Diff line number Diff line
@@ -86,6 +86,13 @@ struct nand_bbt_descr { 
#define NAND_BBT_VERSION	0x00000100

/* Create a bbt if none exists */

#define NAND_BBT_CREATE		0x00000200

/*

 * Create an empty BBT with no vendor information. Vendor's information may be

 * unavailable, for example, if the NAND controller has a different data and OOB

 * layout or if this information is already purged. Must be used in conjunction

 * with NAND_BBT_CREATE.

 */

#define NAND_CREATE_EMPTY_BBT	0x01000000

/* Search good / bad pattern through all pages of a block */

#define NAND_BBT_SCANALLPAGES	0x00000400

/* Scan block empty during good / bad block scan */

include/linux/mtd/nand.h

+0 −2
Original line number Diff line number Diff line
@@ -228,8 +228,6 @@ typedef enum { 
#define NAND_OWN_BUFFERS	0x00040000

/* Chip may not exist, so silence any errors in scan */

#define NAND_SCAN_SILENT_NODEV	0x00080000

/* Create an empty BBT with no vendor information if the BBT is available */

#define NAND_CREATE_EMPTY_BBT		0x01000000



/* Options set by nand scan */

/* Nand scan has allocated controller struct */

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