mtd: nand: remove AG-AND support

We have only one AG-AND driver and it was not touched since 2005. It looks
like AG-AND was not really make it to mass-production and can be considered
a dead technology.

Along with the AG-AND support, this patch removes the BBT_AUTO_REFRESH feature,
because the only user of this feature is AG-AND. And even though it is
implemented as a generic feature, I prefer to remove it because NAND flashes do
not really need it in this form.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 0 insertions, 16 deletions

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index ef52d9c91459..7cc299436f94 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -172,22 +172,6 @@ typedef enum {
 /* Chip has copy back function */
 #define NAND_COPYBACK           0x00000010
 /*
- * AND Chip which has 4 banks and a confusing page / block
- * assignment. See Renesas datasheet for further information.
- */
-#define NAND_IS_AND             0x00000020
-/*
- * Chip has a array of 4 pages which can be read without
- * additional ready /busy waits.
- */
-#define NAND_4PAGE_ARRAY        0x00000040
-/*
- * Chip requires that BBT is periodically rewritten to prevent
- * bits from adjacent blocks from 'leaking' in altering data.
- * This happens with the Renesas AG-AND chips, possibly others.
- */
-#define BBT_AUTO_REFRESH        0x00000080
-/*
  * Chip requires ready check on read (for auto-incremented sequential read).
  * True only for small page devices; large page devices do not support
  * autoincrement.