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authorSergey Lapin <slapin@ossfans.org>2013-01-14 03:46:50 +0000
committerScott Wood <scottwood@freescale.com>2013-05-31 17:12:03 -0500
commitdfe64e2c89731a3f9950d7acd8681b68df2bae03 (patch)
tree880eae93d5f4bd3e9747960eea71502c67e49d8e /include/linux/mtd/bbm.h
parenta1b81ab26fbbdcbaa6e2a096397c75415181c298 (diff)
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mtd: resync with Linux-3.7.1
This patch is essentially an update of u-boot MTD subsystem to the state of Linux-3.7.1 with exclusion of some bits: - the update is concentrated on NAND, no onenand or CFI/NOR/SPI flashes interfaces are updated EXCEPT for API changes. - new large NAND chips support is there, though some updates have got in Linux-3.8.-rc1, (which will follow on top of this patch). To produce this update I used tag v3.7.1 of linux-stable repository. The update was made using application of relevant patches, with changes relevant to U-Boot-only stuff sticked together to keep bisectability. Then all changes were grouped together to this patch. Signed-off-by: Sergey Lapin <slapin@ossfans.org> [scottwood@freescale.com: some eccstrength and build fixes] Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'include/linux/mtd/bbm.h')
-rw-r--r--include/linux/mtd/bbm.h49
1 files changed, 35 insertions, 14 deletions
diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h
index 8cbcdae..71292b1 100644
--- a/include/linux/mtd/bbm.h
+++ b/include/linux/mtd/bbm.h
@@ -81,32 +81,53 @@ struct nand_bbt_descr {
#define NAND_BBT_LASTBLOCK 0x00000010
/* The bbt is at the given page, else we must scan for the bbt */
#define NAND_BBT_ABSPAGE 0x00000020
-/* The bbt is at the given page, else we must scan for the bbt */
-#define NAND_BBT_SEARCH 0x00000040
/* bbt is stored per chip on multichip devices */
#define NAND_BBT_PERCHIP 0x00000080
/* bbt has a version counter at offset veroffs */
#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_BBT_CREATE_EMPTY 0x00000400
/* Search good / bad pattern through all pages of a block */
-#define NAND_BBT_SCANALLPAGES 0x00000400
+#define NAND_BBT_SCANALLPAGES 0x00000800
/* Scan block empty during good / bad block scan */
-#define NAND_BBT_SCANEMPTY 0x00000800
+#define NAND_BBT_SCANEMPTY 0x00001000
/* Write bbt if neccecary */
-#define NAND_BBT_WRITE 0x00001000
+#define NAND_BBT_WRITE 0x00002000
/* Read and write back block contents when writing bbt */
-#define NAND_BBT_SAVECONTENT 0x00002000
+#define NAND_BBT_SAVECONTENT 0x00004000
/* Search good / bad pattern on the first and the second page */
-#define NAND_BBT_SCAN2NDPAGE 0x00004000
+#define NAND_BBT_SCAN2NDPAGE 0x00008000
/* Search good / bad pattern on the last page of the eraseblock */
-#define NAND_BBT_SCANLASTPAGE 0x00008000
-/* Chip stores bad block marker on BOTH 1st and 6th bytes of OOB */
-#define NAND_BBT_SCANBYTE1AND6 0x00100000
-/* The nand_bbt_descr was created dynamicaly and must be freed */
-#define NAND_BBT_DYNAMICSTRUCT 0x00200000
-/* The bad block table does not OOB for marker */
-#define NAND_BBT_NO_OOB 0x00400000
+#define NAND_BBT_SCANLASTPAGE 0x00010000
+/*
+ * Use a flash based bad block table. By default, OOB identifier is saved in
+ * OOB area. This option is passed to the default bad block table function.
+ */
+#define NAND_BBT_USE_FLASH 0x00020000
+/*
+ * Do not store flash based bad block table marker in the OOB area; store it
+ * in-band.
+ */
+#define NAND_BBT_NO_OOB 0x00040000
+/*
+ * Do not write new bad block markers to OOB; useful, e.g., when ECC covers
+ * entire spare area. Must be used with NAND_BBT_USE_FLASH.
+ */
+#define NAND_BBT_NO_OOB_BBM 0x00080000
+
+/*
+ * Flag set by nand_create_default_bbt_descr(), marking that the nand_bbt_descr
+ * was allocated dynamicaly and must be freed in nand_release(). Has no meaning
+ * in nand_chip.bbt_options.
+ */
+#define NAND_BBT_DYNAMICSTRUCT 0x80000000
/* The maximum number of blocks to scan for a bbt */
#define NAND_BBT_SCAN_MAXBLOCKS 4