Merge git://git.infradead.org/mtd-2.6

* git://git.infradead.org/mtd-2.6: (90 commits)
  jffs2: Fix long-standing bug with symlink garbage collection.
  mtd: OneNAND: Fix test of unsigned in onenand_otp_walk()
  mtd: cfi_cmdset_0002, fix lock imbalance
  Revert "mtd: move mxcnd_remove to .exit.text"
  mtd: m25p80: add support for Macronix MX25L4005A
  kmsg_dump: fix build for CONFIG_PRINTK=n
  mtd: nandsim: add support for 4KiB pages
  mtd: mtdoops: refactor as a kmsg_dumper
  mtd: mtdoops: make record size configurable
  mtd: mtdoops: limit the maximum mtd partition size
  mtd: mtdoops: keep track of used/unused pages in an array
  mtd: mtdoops: several minor cleanups
  core: Add kernel message dumper to call on oopses and panics
  mtd: add ARM pismo support
  mtd: pxa3xx_nand: Fix PIO data transfer
  mtd: nand: fix multi-chip suspend problem
  mtd: add support for switching old SST chips into QRY mode
  mtd: fix M29W800D dev_id and uaddr
  mtd: don't use PF_MEMALLOC
  mtd: Add bad block table overrides to Davinci NAND driver
  ...

Fixed up conflicts (mostly trivial) in
	drivers/mtd/devices/m25p80.c
	drivers/mtd/maps/pcmciamtd.c
	drivers/mtd/nand/pxa3xx_nand.c
	kernel/printk.c

8 files changed, 113 insertions, 132 deletions

diff --git a/include/linux/kmsg_dump.h b/include/linux/kmsg_dump.h
new file mode 100644
index 00000000000..e32aa268efa
--- /dev/null
+++ b/include/linux/kmsg_dump.h
@@ -0,0 +1,60 @@
+/*
+ * linux/include/kmsg_dump.h
+ *
+ * Copyright (C) 2009 Net Insight AB
+ *
+ * Author: Simon Kagstrom <simon.kagstrom@netinsight.net>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+#ifndef _LINUX_KMSG_DUMP_H
+#define _LINUX_KMSG_DUMP_H
+
+#include <linux/list.h>
+
+enum kmsg_dump_reason {
+	KMSG_DUMP_OOPS,
+	KMSG_DUMP_PANIC,
+};
+
+/**
+ * struct kmsg_dumper - kernel crash message dumper structure
+ * @dump:	The callback which gets called on crashes. The buffer is passed
+ * 		as two sections, where s1 (length l1) contains the older
+ * 		messages and s2 (length l2) contains the newer.
+ * @list:	Entry in the dumper list (private)
+ * @registered:	Flag that specifies if this is already registered
+ */
+struct kmsg_dumper {
+	void (*dump)(struct kmsg_dumper *dumper, enum kmsg_dump_reason reason,
+			const char *s1, unsigned long l1,
+			const char *s2, unsigned long l2);
+	struct list_head list;
+	int registered;
+};
+
+#ifdef CONFIG_PRINTK
+void kmsg_dump(enum kmsg_dump_reason reason);
+
+int kmsg_dump_register(struct kmsg_dumper *dumper);
+
+int kmsg_dump_unregister(struct kmsg_dumper *dumper);
+#else
+static inline void kmsg_dump(enum kmsg_dump_reason reason)
+{
+}
+
+static inline int kmsg_dump_register(struct kmsg_dumper *dumper)
+{
+	return -EINVAL;
+}
+
+static inline int kmsg_dump_unregister(struct kmsg_dumper *dumper)
+{
+	return -EINVAL;
+}
+#endif
+
+#endif /* _LINUX_KMSG_DUMP_H */
diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h
index fff8c53e543..9c3757c5759 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/cfi.h b/include/linux/mtd/cfi.h
index 88d3d8fbf9f..df89f427523 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -518,10 +518,11 @@ struct cfi_fixup {
 #define CFI_MFR_ANY 0xffff
 #define CFI_ID_ANY  0xffff
 
-#define CFI_MFR_AMD 0x0001
-#define CFI_MFR_ATMEL 0x001F
-#define CFI_MFR_SAMSUNG 0x00EC
-#define CFI_MFR_ST  0x0020 	/* STMicroelectronics */
+#define CFI_MFR_AMD	0x0001
+#define CFI_MFR_INTEL	0x0089
+#define CFI_MFR_ATMEL	0x001F
+#define CFI_MFR_SAMSUNG	0x00EC
+#define CFI_MFR_ST	0x0020 /* STMicroelectronics */
 
 void cfi_fixup(struct mtd_info *mtd, struct cfi_fixup* fixups);
 
diff --git a/include/linux/mtd/flashchip.h b/include/linux/mtd/flashchip.h
index d4f38c5fd44..d0bf422ae37 100644
--- a/include/linux/mtd/flashchip.h
+++ b/include/linux/mtd/flashchip.h
@@ -38,6 +38,15 @@ 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 4 come from onenand_state_t, which has been unified here */
+	FL_RESETING,
+	FL_OTPING,
+	FL_PREPARING_ERASE,
+	FL_VERIFYING_ERASE,
+
 	FL_UNKNOWN
 } flstate_t;
 
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 7a232a9bdd6..ccab9dfc521 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 */
@@ -168,7 +170,6 @@ typedef enum {
 /* Chip does not allow subpage writes */
 #define NAND_NO_SUBPAGE_WRITE	0x00000200
 
-
 /* Options valid for Samsung large page devices */
 #define NAND_SAMSUNG_LP_OPTIONS \
 	(NAND_NO_PADDING | NAND_CACHEPRG | NAND_COPYBACK)
@@ -194,6 +195,9 @@ typedef enum {
 /* This option is defined if the board driver allocates its own buffers
    (e.g. because it needs them DMA-coherent */
 #define NAND_OWN_BUFFERS	0x00040000
+/* Chip may not exist, so silence any errors in scan */
+#define NAND_SCAN_SILENT_NODEV	0x00080000
+
 /* Options set by nand scan */
 /* Nand scan has allocated controller struct */
 #define NAND_CONTROLLER_ALLOC	0x80000000
@@ -202,20 +206,6 @@ 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 +392,7 @@ 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 +460,6 @@ 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 +469,6 @@ 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/nand_ecc.h b/include/linux/mtd/nand_ecc.h
index 052ea8ca243..41bc013571d 100644
--- a/include/linux/mtd/nand_ecc.h
+++ b/include/linux/mtd/nand_ecc.h
@@ -16,7 +16,13 @@
 struct mtd_info;
 
 /*
- * Calculate 3 byte ECC code for 256 byte block
+ * Calculate 3 byte ECC code for eccsize byte block
+ */
+void __nand_calculate_ecc(const u_char *dat, unsigned int eccsize,
+				u_char *ecc_code);
+
+/*
+ * Calculate 3 byte ECC code for 256/512 byte block
  */
 int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code);
 
@@ -27,7 +33,7 @@ int __nand_correct_data(u_char *dat, u_char *read_ecc, u_char *calc_ecc,
 			unsigned int eccsize);
 
 /*
- * Detect and correct a 1 bit error for 256 byte block
+ * Detect and correct a 1 bit error for 256/512 byte block
  */
 int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
 
diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h
index 4e49f335067..5509eb06b32 100644
--- a/include/linux/mtd/onenand.h
+++ b/include/linux/mtd/onenand.h
@@ -1,7 +1,7 @@
 /*
  *  linux/include/linux/mtd/onenand.h
  *
- *  Copyright (C) 2005-2007 Samsung Electronics
+ *  Copyright © 2005-2009 Samsung Electronics
  *  Kyungmin Park <kyungmin.park@samsung.com>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -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;
 
@@ -152,6 +137,8 @@ struct onenand_chip {
 /*
  * Helper macros
  */
+#define ONENAND_PAGES_PER_BLOCK        (1<<6)
+
 #define ONENAND_CURRENT_BUFFERRAM(this)		(this->bufferram_index)
 #define ONENAND_NEXT_BUFFERRAM(this)		(this->bufferram_index ^ 1)
 #define ONENAND_SET_NEXT_BUFFERRAM(this)	(this->bufferram_index ^= 1)
diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h
index acadbf53a69..cd6f3b43119 100644
--- a/include/linux/mtd/onenand_regs.h
+++ b/include/linux/mtd/onenand_regs.h
@@ -131,6 +131,8 @@
 #define ONENAND_CMD_LOCK_TIGHT		(0x2C)
 #define ONENAND_CMD_UNLOCK_ALL		(0x27)
 #define ONENAND_CMD_ERASE		(0x94)
+#define ONENAND_CMD_MULTIBLOCK_ERASE	(0x95)
+#define ONENAND_CMD_ERASE_VERIFY	(0x71)
 #define ONENAND_CMD_RESET		(0xF0)
 #define ONENAND_CMD_OTP_ACCESS		(0x65)
 #define ONENAND_CMD_READID		(0x90)