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: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>

diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index bb2da2fd069e8aa4c9af0d9b4ff50232ff3a70cc..5ac3eb07c6d667aca69865b7fd73dfd42c52ab6a 100644 (file)
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -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 */