[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: Michel Pollet <buserror@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index ef5665258968..d315b513db5c 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -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;
 }
 
 /**