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Commit 9db41f9e authored by Michel Pollet's avatar Michel Pollet Committed by Ben Dooks
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[MTD] [NAND] S3C2410: Allow the machine code to get the BBT table from NAND 



Added a flag to allow the machine code to tell the NAND
subsystem that it should try to pickup a BBT from the flash,
and also skip the NAND full scan at startup.

Signed-off-by: default avatarMichel Pollet <buserror@gmail.com>
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent a4536b19

arch/arm/plat-s3c/include/plat/nand.h

+5 −0
Original line number Diff line number Diff line
@@ -13,6 +13,10 @@ 
/**

 * struct s3c2410_nand_set - define a set of one or more nand chips

 * @disable_ecc:	Entirely disable ECC - Dangerous

 * @flash_bbt: 		Openmoko u-boot can create a Bad Block Table

 *			Setting this flag will allow the kernel to

 *			look for it at boot time and also skip the NAND

 *			scan.

 * @nr_chips:		Number of chips in this set

 * @nr_partitions:	Number of partitions pointed to by @partitions

 * @name:		Name of set (optional)
@@ -25,6 +29,7 @@ 
 */

struct s3c2410_nand_set {

	unsigned int		disable_ecc:1;

	unsigned int		flash_bbt:1;



	int			nr_chips;

	int			nr_partitions;

drivers/mtd/nand/s3c2410.c

+6 −0
Original line number Diff line number Diff line
@@ -845,6 +845,12 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, 
		dev_info(info->device, "NAND ECC UNKNOWN\n");

		break;

	}



	/* If you use u-boot BBT creation code, specifying this flag will

	 * let the kernel fish out the BBT from the NAND, and also skip the

	 * full NAND scan that can take 1/2s or so. Little things... */

	if (set->flash_bbt)

		chip->options |= NAND_USE_FLASH_BBT | NAND_SKIP_BBTSCAN;

}



/**