mtd: nand: consolidate redundant flash-based BBT flags

This patch works with the following three flags from two headers (nand.h
and bbm.h):
  (1) NAND_USE_FLASH_BBT (nand.h)
  (2) NAND_USE_FLASH_BBT_NO_OOB (nand.h)
  (3) NAND_BBT_NO_OOB (bbm.h)

These flags are all related and interdependent, yet they were in
different headers. Flag (2) is simply the combination of (1) and (3) and
can be eliminated.

This patch accomplishes the following:
  * eliminate NAND_USE_FLASH_BBT_NO_OOB (i.e., flag (2))
  * move NAND_USE_FLASH_BBT (i.e., flag (1)) to bbm.h

It's important to note that because (1) and (3) are now both found in
bbm.h, they should NOT be used in the "nand_chip.options" field.

I removed a small section from the mtdnand DocBook because it referes to
NAND_USE_FLASH_BBT in nand.h, which has been moved to bbm.h.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/arm/mach-davinci/include/mach/nand.h b/arch/arm/mach-davinci/include/mach/nand.h
index 025151049f05..2c506f905cb8 100644
--- a/arch/arm/mach-davinci/include/mach/nand.h
+++ b/arch/arm/mach-davinci/include/mach/nand.h
@@ -74,8 +74,10 @@ struct davinci_nand_pdata {		/* platform_data */
         nand_ecc_modes_t        ecc_mode;
         u8                      ecc_bits;
 
-        /* e.g. NAND_BUSWIDTH_16 or NAND_USE_FLASH_BBT */
+        /* e.g. NAND_BUSWIDTH_16 */
         unsigned                options;
+        /* e.g. NAND_USE_FLASH_BBT */
+        unsigned                bbt_options;
 
         /* Main and mirror bbt descriptor overrides */
         struct nand_bbt_descr   *bbt_td;