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authorBrian Norris <computersforpeace@gmail.com>2011-06-01 03:31:24 +0400
committerArtem Bityutskiy <artem.bityutskiy@intel.com>2011-09-11 16:01:56 +0400
commitb8f80684054ec8a3bcdf35dc9c76ddf629a36482 (patch)
tree0cb7074e709c2ec0095881079f2acca8ad717b94 /include
parentbb9ebd4e714385a2592a482845865ef2d58b2868 (diff)
downloadlinux-b8f80684054ec8a3bcdf35dc9c76ddf629a36482.tar.xz
mtd: nand: move NAND_CREATE_EMPTY_BBT flag
The NAND_CREATE_EMPTY_BBT flag was added by commit: 453281a973c10bce941b240d1c654d536623b16b mtd: nand: introduce NAND_CREATE_EMPTY_BBT This flag is not used within the kernel and not explained well, so I took the liberty to edit its comments. Also, this is a BBT-related flag (and closely tied with NAND_BBT_CREATE) so I'm moving it to bbm.h next to NAND_BBT_CREATE, thus requiring that we use the flag in nand_chip.bbt_options, *not* in nand_chip.options. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mtd/bbm.h7
-rw-r--r--include/linux/mtd/nand.h2
2 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h
index ff18c0850519..3cf4a8adc6af 100644
--- a/include/linux/mtd/bbm.h
+++ b/include/linux/mtd/bbm.h
@@ -86,6 +86,13 @@ struct nand_bbt_descr {
#define NAND_BBT_VERSION 0x00000100
/* Create a bbt if none exists */
#define NAND_BBT_CREATE 0x00000200
+/*
+ * Create an empty BBT with no vendor information. Vendor's information may be
+ * unavailable, for example, if the NAND controller has a different data and OOB
+ * layout or if this information is already purged. Must be used in conjunction
+ * with NAND_BBT_CREATE.
+ */
+#define NAND_CREATE_EMPTY_BBT 0x01000000
/* Search good / bad pattern through all pages of a block */
#define NAND_BBT_SCANALLPAGES 0x00000400
/* Scan block empty during good / bad block scan */
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 8a086d2cacf4..c1fca4fd35e7 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -228,8 +228,6 @@ typedef enum {
#define NAND_OWN_BUFFERS 0x00040000
/* Chip may not exist, so silence any errors in scan */
#define NAND_SCAN_SILENT_NODEV 0x00080000
-/* Create an empty BBT with no vendor information if the BBT is available */
-#define NAND_CREATE_EMPTY_BBT 0x01000000
/* Options set by nand scan */
/* Nand scan has allocated controller struct */