Commit 777f2d49 authored by Masahiro Yamada's avatar Masahiro Yamada Committed by Boris Brezillon
Browse files

mtd: nand: denali: enable bad block table scan 



Now this driver is ready to remove NAND_SKIP_BBTSCAN.

The BBT descriptors in denali.c are equivalent to the ones in
nand_bbt.c.  There is no need to duplicate the equivalent structures.
The with-oob decriptors do not work for this driver anyway.

The bbt_pattern (offs = 8) and the version (veroffs = 12) area
overlaps the ECC area.  Set NAND_BBT_NO_OOB flag to use the no_oob
variant of the BBT descriptors.

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: default avatarBoris Brezillon <boris.brezillon@free-electrons.com>
parent 7d370b2c

drivers/mtd/nand/denali.c

+2 −29
Original line number Diff line number Diff line
@@ -1211,29 +1211,6 @@ static const struct mtd_ooblayout_ops denali_ooblayout_ops = { 
	.free = denali_ooblayout_free,

};



static uint8_t bbt_pattern[] = {'B', 'b', 't', '0' };

static uint8_t mirror_pattern[] = {'1', 't', 'b', 'B' };



static struct nand_bbt_descr bbt_main_descr = {

	.options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE

		| NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,

	.offs =	8,

	.len = 4,

	.veroffs = 12,

	.maxblocks = 4,

	.pattern = bbt_pattern,

};



static struct nand_bbt_descr bbt_mirror_descr = {

	.options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE

		| NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,

	.offs =	8,

	.len = 4,

	.veroffs = 12,

	.maxblocks = 4,

	.pattern = mirror_pattern,

};



/* initialize driver data structures */

static void denali_drv_init(struct denali_nand_info *denali)

{
@@ -1378,13 +1355,9 @@ int denali_init(struct denali_nand_info *denali) 
	 * bad block management.

	 */



	/* Bad block management */

	chip->bbt_td = &bbt_main_descr;

	chip->bbt_md = &bbt_mirror_descr;



	/* skip the scan for now until we have OOB read and write support */

	chip->bbt_options |= NAND_BBT_USE_FLASH;

	chip->options |= NAND_SKIP_BBTSCAN;

	chip->bbt_options |= NAND_BBT_NO_OOB;



	chip->ecc.mode = NAND_ECC_HW_SYNDROME;



	/* no subpage writes on denali */

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