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authorStephen Rothwell <sfr@canb.auug.org.au>2009-11-25 15:51:44 +1100
committerStephen Rothwell <sfr@canb.auug.org.au>2009-11-25 15:51:44 +1100
commitb27dc03abdd641ac6cfc14a5c0c5d70b2eea5cc1 (patch)
tree2cb6f94ff24892fb15dc9ba3d1675f953afa924c /include
parent4b0b0fb44f5272e7dcc89945ce160b8c2c294f37 (diff)
parent8ce110ac19bc88b82e3feacfbb3a2ee08a07fe22 (diff)
Merge remote branch 'mtd/master'
Diffstat (limited to 'include')
-rw-r--r--include/linux/mtd/bbm.h35
-rw-r--r--include/linux/mtd/flashchip.h7
-rw-r--r--include/linux/mtd/nand.h93
-rw-r--r--include/linux/mtd/onenand.h19
4 files changed, 30 insertions, 124 deletions
diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h
index fff8c53e5434..9c3757c5759d 100644
--- a/include/linux/mtd/bbm.h
+++ b/include/linux/mtd/bbm.h
@@ -19,22 +19,21 @@
/**
* struct nand_bbt_descr - bad block table descriptor
- * @options: options for this descriptor
- * @pages: the page(s) where we find the bbt, used with
- * option BBT_ABSPAGE when bbt is searched,
- * then we store the found bbts pages here.
- * Its an array and supports up to 8 chips now
- * @offs: offset of the pattern in the oob area of the page
- * @veroffs: offset of the bbt version counter in the oob area of the page
- * @version: version read from the bbt page during scan
- * @len: length of the pattern, if 0 no pattern check is performed
- * @maxblocks: maximum number of blocks to search for a bbt. This
- * number of blocks is reserved at the end of the device
- * where the tables are written.
- * @reserved_block_code: if non-0, this pattern denotes a reserved
- * (rather than bad) block in the stored bbt
- * @pattern: pattern to identify bad block table or factory marked
- * good / bad blocks, can be NULL, if len = 0
+ * @options: options for this descriptor
+ * @pages: the page(s) where we find the bbt, used with option BBT_ABSPAGE
+ * when bbt is searched, then we store the found bbts pages here.
+ * Its an array and supports up to 8 chips now
+ * @offs: offset of the pattern in the oob area of the page
+ * @veroffs: offset of the bbt version counter in the oob are of the page
+ * @version: version read from the bbt page during scan
+ * @len: length of the pattern, if 0 no pattern check is performed
+ * @maxblocks: maximum number of blocks to search for a bbt. This number of
+ * blocks is reserved at the end of the device where the tables are
+ * written.
+ * @reserved_block_code: if non-0, this pattern denotes a reserved (rather than
+ * bad) block in the stored bbt
+ * @pattern: pattern to identify bad block table or factory marked good /
+ * bad blocks, can be NULL, if len = 0
*
* Descriptor for the bad block table marker and the descriptor for the
* pattern which identifies good and bad blocks. The assumption is made
@@ -90,7 +89,9 @@ struct nand_bbt_descr {
/*
* Constants for oob configuration
*/
-#define ONENAND_BADBLOCK_POS 0
+#define NAND_SMALL_BADBLOCK_POS 5
+#define NAND_LARGE_BADBLOCK_POS 0
+#define ONENAND_BADBLOCK_POS 0
/*
* Bad block scanning errors
diff --git a/include/linux/mtd/flashchip.h b/include/linux/mtd/flashchip.h
index d4f38c5fd44e..f350a4879f75 100644
--- a/include/linux/mtd/flashchip.h
+++ b/include/linux/mtd/flashchip.h
@@ -38,6 +38,13 @@ typedef enum {
FL_XIP_WHILE_ERASING,
FL_XIP_WHILE_WRITING,
FL_SHUTDOWN,
+ /* These 2 come from nand_state_t, which has been unified here */
+ FL_READING,
+ FL_CACHEDPRG,
+ /* These 2 come from onenand_state_t, which has been unified here */
+ FL_RESETING,
+ FL_OTPING,
+
FL_UNKNOWN
} flstate_t;
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 7a232a9bdd62..2476078a032f 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -21,6 +21,8 @@
#include <linux/wait.h>
#include <linux/spinlock.h>
#include <linux/mtd/mtd.h>
+#include <linux/mtd/flashchip.h>
+#include <linux/mtd/bbm.h>
struct mtd_info;
/* Scan and identify a NAND device */
@@ -202,20 +204,6 @@ typedef enum {
#define NAND_CI_CHIPNR_MSK 0x03
#define NAND_CI_CELLTYPE_MSK 0x0C
-/*
- * nand_state_t - chip states
- * Enumeration for NAND flash chip state
- */
-typedef enum {
- FL_READY,
- FL_READING,
- FL_WRITING,
- FL_ERASING,
- FL_SYNCING,
- FL_CACHEDPRG,
- FL_PM_SUSPENDED,
-} nand_state_t;
-
/* Keep gcc happy */
struct nand_chip;
@@ -402,7 +390,7 @@ struct nand_chip {
uint8_t cellinfo;
int badblockpos;
- nand_state_t state;
+ flstate_t state;
uint8_t *oob_poi;
struct nand_hw_control *controller;
@@ -470,75 +458,6 @@ struct nand_manufacturers {
extern struct nand_flash_dev nand_flash_ids[];
extern struct nand_manufacturers nand_manuf_ids[];
-/**
- * struct nand_bbt_descr - bad block table descriptor
- * @options: options for this descriptor
- * @pages: the page(s) where we find the bbt, used with option BBT_ABSPAGE
- * when bbt is searched, then we store the found bbts pages here.
- * Its an array and supports up to 8 chips now
- * @offs: offset of the pattern in the oob area of the page
- * @veroffs: offset of the bbt version counter in the oob are of the page
- * @version: version read from the bbt page during scan
- * @len: length of the pattern, if 0 no pattern check is performed
- * @maxblocks: maximum number of blocks to search for a bbt. This number of
- * blocks is reserved at the end of the device where the tables are
- * written.
- * @reserved_block_code: if non-0, this pattern denotes a reserved (rather than
- * bad) block in the stored bbt
- * @pattern: pattern to identify bad block table or factory marked good /
- * bad blocks, can be NULL, if len = 0
- *
- * Descriptor for the bad block table marker and the descriptor for the
- * pattern which identifies good and bad blocks. The assumption is made
- * that the pattern and the version count are always located in the oob area
- * of the first block.
- */
-struct nand_bbt_descr {
- int options;
- int pages[NAND_MAX_CHIPS];
- int offs;
- int veroffs;
- uint8_t version[NAND_MAX_CHIPS];
- int len;
- int maxblocks;
- int reserved_block_code;
- uint8_t *pattern;
-};
-
-/* Options for the bad block table descriptors */
-
-/* The number of bits used per block in the bbt on the device */
-#define NAND_BBT_NRBITS_MSK 0x0000000F
-#define NAND_BBT_1BIT 0x00000001
-#define NAND_BBT_2BIT 0x00000002
-#define NAND_BBT_4BIT 0x00000004
-#define NAND_BBT_8BIT 0x00000008
-/* The bad block table is in the last good block of the device */
-#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 axists */
-#define NAND_BBT_CREATE 0x00000200
-/* Search good / bad pattern through all pages of a block */
-#define NAND_BBT_SCANALLPAGES 0x00000400
-/* Scan block empty during good / bad block scan */
-#define NAND_BBT_SCANEMPTY 0x00000800
-/* Write bbt if neccecary */
-#define NAND_BBT_WRITE 0x00001000
-/* Read and write back block contents when writing bbt */
-#define NAND_BBT_SAVECONTENT 0x00002000
-/* Search good / bad pattern on the first and the second page */
-#define NAND_BBT_SCAN2NDPAGE 0x00004000
-
-/* The maximum number of blocks to scan for a bbt */
-#define NAND_BBT_SCAN_MAXBLOCKS 4
-
extern int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd);
extern int nand_update_bbt(struct mtd_info *mtd, loff_t offs);
extern int nand_default_bbt(struct mtd_info *mtd);
@@ -548,12 +467,6 @@ extern int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
extern int nand_do_read(struct mtd_info *mtd, loff_t from, size_t len,
size_t * retlen, uint8_t * buf);
-/*
-* Constants for oob configuration
-*/
-#define NAND_SMALL_BADBLOCK_POS 5
-#define NAND_LARGE_BADBLOCK_POS 0
-
/**
* struct platform_nand_chip - chip level device structure
* @nr_chips: max. number of chips to scan for
diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h
index 4e49f3350678..f57e29e17bb0 100644
--- a/include/linux/mtd/onenand.h
+++ b/include/linux/mtd/onenand.h
@@ -14,6 +14,7 @@
#include <linux/spinlock.h>
#include <linux/completion.h>
+#include <linux/mtd/flashchip.h>
#include <linux/mtd/onenand_regs.h>
#include <linux/mtd/bbm.h>
@@ -25,22 +26,6 @@ extern int onenand_scan(struct mtd_info *mtd, int max_chips);
/* Free resources held by the OneNAND device */
extern void onenand_release(struct mtd_info *mtd);
-/*
- * onenand_state_t - chip states
- * Enumeration for OneNAND flash chip state
- */
-typedef enum {
- FL_READY,
- FL_READING,
- FL_WRITING,
- FL_ERASING,
- FL_SYNCING,
- FL_LOCKING,
- FL_RESETING,
- FL_OTPING,
- FL_PM_SUSPENDED,
-} onenand_state_t;
-
/**
* struct onenand_bufferram - OneNAND BufferRAM Data
* @blockpage: block & page address in BufferRAM
@@ -137,7 +122,7 @@ struct onenand_chip {
spinlock_t chip_lock;
wait_queue_head_t wq;
- onenand_state_t state;
+ flstate_t state;
unsigned char *page_buf;
unsigned char *oob_buf;