MTD core include and device code cleanup

 - Move user-visible bits from headers to include/mtd/ directory.
 - Update old DiskOnChip drivers for newer hardware.
 - Switch NFTL and INFTL support to work with new DiskOnChip/NAND code.
 - New phram driver, reimplenting the ugly slram driver.
 - Bug fixes in partitioning code

6 files changed, 56 insertions, 263 deletions

diff --git a/include/linux/mtd/doc2000.h b/include/linux/mtd/doc2000.h
index 64465a963442..0fd8f49c649b 100644
--- a/include/linux/mtd/doc2000.h
+++ b/include/linux/mtd/doc2000.h
@@ -1,13 +1,21 @@
-
-/* Linux driver for Disk-On-Chip 2000       */
-/* (c) 1999 Machine Vision Holdings, Inc.   */
-/* Author: David Woodhouse <dwmw2@mvhi.com> */
-/* $Id: doc2000.h,v 1.17 2003/06/12 01:20:46 gerg Exp $ */
+/* 
+ * Linux driver for Disk-On-Chip devices
+ *
+ * Copyright (C) 1999 Machine Vision Holdings, Inc.   
+ * Copyright (C) 2001-2003 David Woodhouse <dwmw2@infradead.org>
+ * Copyright (C) 2002-2003 Greg Ungerer <gerg@snapgear.com>
+ * Copyright (C) 2002-2003 SnapGear Inc
+ *
+ * $Id: doc2000.h,v 1.22 2003/11/05 10:51:36 dwmw2 Exp $ 
+ *
+ * Released under GPL
+ */
 
 #ifndef __MTD_DOC2000_H__
 #define __MTD_DOC2000_H__
 
 #include <linux/mtd/mtd.h>
+#include <asm/semaphore.h>
 
 #define DoC_Sig1 0
 #define DoC_Sig2 1
@@ -73,12 +81,12 @@
  * Others use readb/writeb 
  */
 #if defined(__arm__)
-#define ReadDOC_(adr, reg)      ((unsigned char)(*(__u32 *)(((unsigned long)adr)+((reg)<<2))))
-#define WriteDOC_(d, adr, reg)  do{ *(__u32 *)(((unsigned long)adr)+((reg)<<2)) = (__u32)d; wmb();} while(0)
+#define ReadDOC_(adr, reg)      ((unsigned char)(*(volatile __u32 *)(((unsigned long)adr)+((reg)<<2))))
+#define WriteDOC_(d, adr, reg)  do{ *(volatile __u32 *)(((unsigned long)adr)+((reg)<<2)) = (__u32)d; wmb();} while(0)
 #define DOC_IOREMAP_LEN 0x8000
 #elif defined(__ppc__)
-#define ReadDOC_(adr, reg)      ((unsigned char)(*(__u16 *)(((unsigned long)adr)+((reg)<<1))))
-#define WriteDOC_(d, adr, reg)  do{ *(__u16 *)(((unsigned long)adr)+((reg)<<1)) = (__u16)d; wmb();} while(0)
+#define ReadDOC_(adr, reg)      ((unsigned char)(*(volatile __u16 *)(((unsigned long)adr)+((reg)<<1))))
+#define WriteDOC_(d, adr, reg)  do{ *(volatile __u16 *)(((unsigned long)adr)+((reg)<<1)) = (__u16)d; wmb();} while(0)
 #define DOC_IOREMAP_LEN 0x4000
 #else
 #define ReadDOC_(adr, reg)      readb(((unsigned long)adr) + (reg))
@@ -106,6 +114,7 @@
 #define DOC_MODE_MDWREN 	0x04
 
 #define DOC_ChipID_Doc2k 	0x20
+#define DOC_ChipID_Doc2kTSOP 	0x21	/* internal number for MTD */
 #define DOC_ChipID_DocMil 	0x30
 #define DOC_ChipID_DocMilPlus32	0x40
 #define DOC_ChipID_DocMilPlus16	0x41
@@ -147,10 +156,10 @@ struct Nand {
 #define MAX_FLOORS 4
 #define MAX_CHIPS 4
 
-#define MAX_FLOORS_MIL 4
+#define MAX_FLOORS_MIL 1
 #define MAX_CHIPS_MIL 1
 
-#define MAX_FLOORS_MPLUS 1
+#define MAX_FLOORS_MPLUS 2
 #define MAX_CHIPS_MPLUS 1
 
 #define ADDR_COLUMN 1
@@ -161,7 +170,7 @@ struct DiskOnChip {
 	unsigned long physadr;
 	unsigned long virtadr;
 	unsigned long totlen;
-	char ChipID; /* Type of DiskOnChip */
+	unsigned char ChipID; /* Type of DiskOnChip */
 	int ioreg;
 	
 	unsigned long mfr; /* Flash IDs - only one type of flash per device */
diff --git a/include/linux/mtd/ftl.h b/include/linux/mtd/ftl.h
index ae017efb974e..3678459b4535 100644
--- a/include/linux/mtd/ftl.h
+++ b/include/linux/mtd/ftl.h
@@ -1,5 +1,5 @@
 /*
- * $Id: ftl.h,v 1.5 2001/06/02 20:35:51 dwmw2 Exp $
+ * $Id: ftl.h,v 1.6 2003/01/24 13:20:04 dwmw2 Exp $
  * 
  * Derived from (and probably identical to):
  * ftl.h 1.7 1999/10/25 20:23:17
diff --git a/include/linux/mtd/inftl.h b/include/linux/mtd/inftl.h
index 5cc052da9597..b52c8cbd235c 100644
--- a/include/linux/mtd/inftl.h
+++ b/include/linux/mtd/inftl.h
@@ -3,105 +3,32 @@
  *
  *	(C) Copyright 2002, Greg Ungerer (gerg@snapgear.com)
  *
- *	$Id: inftl.h,v 1.3 2003/05/23 11:35:34 dwmw2 Exp $
+ *	$Id: inftl.h,v 1.6 2004/06/30 14:49:00 dbrown Exp $
  */
 
 #ifndef __MTD_INFTL_H__
 #define __MTD_INFTL_H__
 
+#ifndef __KERNEL__
+#error This is a kernel header. Perhaps include nftl-user.h instead?
+#endif
+
 #include <linux/mtd/blktrans.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nftl.h>
 
-#define	OSAK_VERSION	0x5120
-#define	PERCENTUSED	98
-
-#define	SECTORSIZE	512
+#include <mtd/inftl-user.h>
 
 #ifndef INFTL_MAJOR
-#define INFTL_MAJOR 93 /* FIXME */
+#define INFTL_MAJOR 94
 #endif
 #define INFTL_PARTN_BITS 4
 
-/* Block Control Information */
-
-struct inftl_bci {
-	__u8 ECCsig[6];
-	__u8 Status;
-	__u8 Status1;
-} __attribute__((packed));
-
-struct inftl_unithead1 {
-	__u16 virtualUnitNo;
-	__u16 prevUnitNo;
-	__u8 ANAC;
-	__u8 NACs;
-	__u8 parityPerField;
-	__u8 discarded;
-} __attribute__((packed));
-
-struct inftl_unithead2 {
-	__u8 parityPerField;
-	__u8 ANAC;
-	__u16 prevUnitNo;
-	__u16 virtualUnitNo;
-	__u8 NACs;
-	__u8 discarded;
-} __attribute__((packed));
-
-struct inftl_unittail {
-	__u8 Reserved[4];
-	__u16 EraseMark;
-	__u16 EraseMark1;
-} __attribute__((packed));
-
-union inftl_uci {
-	struct inftl_unithead1 a;
-	struct inftl_unithead2 b;
-	struct inftl_unittail c;
-};
-
-struct inftl_oob {
-	struct inftl_bci b;
-	union inftl_uci u;
-};
-
-
-/* INFTL Media Header */
-
-struct INFTLPartition {
-	__u32 virtualUnits;
-	__u32 firstUnit;
-	__u32 lastUnit;
-	__u32 flags;
-	__u32 spareUnits;
-	__u32 Reserved0;
-	__u32 Reserved1;
-} __attribute__((packed));
-
-struct INFTLMediaHeader {
-	char bootRecordID[8];
-	__u32 NoOfBootImageBlocks;
-	__u32 NoOfBinaryPartitions;
-	__u32 NoOfBDTLPartitions;
-	__u32 BlockMultiplierBits;
-	__u32 FormatFlags;
-	__u32 OsakVersion;
-	__u32 PercentUsed;
-	struct INFTLPartition Partitions[4];
-} __attribute__((packed));
-
-/* Partition flag types */
-#define	INFTL_BINARY	0x20000000
-#define	INFTL_BDTL	0x40000000
-#define	INFTL_LAST	0x80000000
-
-
 #ifdef __KERNEL__
 
 struct INFTLrecord {
 	struct mtd_blktrans_dev mbd;
-	__u16 MediaUnit, SpareMediaUnit;
+	__u16 MediaUnit;
 	__u32 EraseSize;
 	struct INFTLMediaHeader MediaHdr;
 	int usecount;
@@ -119,6 +46,7 @@ struct INFTLrecord {
         unsigned int nb_blocks;		/* number of physical blocks */
         unsigned int nb_boot_blocks;	/* number of blocks used by the bios */
         struct erase_info instr;
+        struct nand_oobinfo oobinfo;
 };
 
 int INFTL_mount(struct INFTLrecord *s);
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 2f0e43db0307..fd7b15d077b3 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -1,10 +1,17 @@
-
-/* $Id: mtd.h,v 1.45 2003/05/20 21:56:40 dwmw2 Exp $ */
+/* 
+ * $Id: mtd.h,v 1.54 2004/07/15 01:13:12 dwmw2 Exp $
+ *
+ * Copyright (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> et al.
+ *
+ * Released under GPL
+ */
 
 #ifndef __MTD_MTD_H__
 #define __MTD_MTD_H__
 
-#ifdef __KERNEL__
+#ifndef __KERNEL__
+#error This is a kernel header. Perhaps include mtd-user.h instead?
+#endif
 
 #include <linux/config.h>
 #include <linux/version.h>
@@ -12,115 +19,26 @@
 #include <linux/module.h>
 #include <linux/uio.h>
 
-#endif /* __KERNEL__ */
-
-struct erase_info_user {
-	u_int32_t start;
-	u_int32_t length;
-};
-
-struct mtd_oob_buf {
-	u_int32_t start;
-	u_int32_t length;
-	unsigned char __user *ptr;
-};
+#include <mtd/mtd-abi.h>
 
 #define MTD_CHAR_MAJOR 90
 #define MTD_BLOCK_MAJOR 31
 #define MAX_MTD_DEVICES 16
 
-
-
-#define MTD_ABSENT		0
-#define MTD_RAM			1
-#define MTD_ROM			2
-#define MTD_NORFLASH		3
-#define MTD_NANDFLASH		4
-#define MTD_PEROM		5
-#define MTD_OTHER		14
-#define MTD_UNKNOWN		15
-
-
-
-#define MTD_CLEAR_BITS		1       // Bits can be cleared (flash)
-#define MTD_SET_BITS		2       // Bits can be set
-#define MTD_ERASEABLE		4       // Has an erase function
-#define MTD_WRITEB_WRITEABLE	8       // Direct IO is possible
-#define MTD_VOLATILE		16      // Set for RAMs
-#define MTD_XIP			32	// eXecute-In-Place possible
-#define MTD_OOB			64	// Out-of-band data (NAND flash)
-#define MTD_ECC			128	// Device capable of automatic ECC
-
-// Some common devices / combinations of capabilities
-#define MTD_CAP_ROM		0
-#define MTD_CAP_RAM		(MTD_CLEAR_BITS|MTD_SET_BITS|MTD_WRITEB_WRITEABLE)
-#define MTD_CAP_NORFLASH        (MTD_CLEAR_BITS|MTD_ERASEABLE)
-#define MTD_CAP_NANDFLASH       (MTD_CLEAR_BITS|MTD_ERASEABLE|MTD_OOB)
-#define MTD_WRITEABLE		(MTD_CLEAR_BITS|MTD_SET_BITS)
-
-
-// Types of automatic ECC/Checksum available
-#define MTD_ECC_NONE		0 	// No automatic ECC available
-#define MTD_ECC_RS_DiskOnChip	1	// Automatic ECC on DiskOnChip
-#define MTD_ECC_SW		2	// SW ECC for Toshiba & Samsung devices
-
-struct mtd_info_user {
-	u_char type;
-	u_int32_t flags;
-	u_int32_t size;	 // Total size of the MTD
-	u_int32_t erasesize;
-	u_int32_t oobblock;  // Size of OOB blocks (e.g. 512)
-	u_int32_t oobsize;   // Amount of OOB data per block (e.g. 16)
-	u_int32_t ecctype;
-	u_int32_t eccsize;
-};
-
-struct region_info_user {
-	u_int32_t offset;		/* At which this region starts, 
-					 * from the beginning of the MTD */
-	u_int32_t erasesize;		/* For this region */
-	u_int32_t numblocks;		/* Number of blocks in this region */
-	u_int32_t regionindex;
-};
-
-#define MEMGETINFO              _IOR('M', 1, struct mtd_info_user)
-#define MEMERASE                _IOW('M', 2, struct erase_info_user)
-#define MEMWRITEOOB             _IOWR('M', 3, struct mtd_oob_buf)
-#define MEMREADOOB              _IOWR('M', 4, struct mtd_oob_buf)
-#define MEMLOCK                 _IOW('M', 5, struct erase_info_user)
-#define MEMUNLOCK               _IOW('M', 6, struct erase_info_user)
-#define MEMGETREGIONCOUNT	_IOR('M', 7, int)
-#define MEMGETREGIONINFO	_IOWR('M', 8, struct region_info_user)
-#define MEMSETOOBSEL		_IOW('M', 9, struct nand_oobinfo)
-
-struct nand_oobinfo {
-	int	useecc;
-	int	eccpos[6];	
-};
-
-
-#ifndef __KERNEL__
-
-typedef struct mtd_info_user mtd_info_t;
-typedef struct erase_info_user erase_info_t;
-typedef struct region_info_user region_info_t;
-typedef struct nand_oobinfo nand_oobinfo_t;
-
-	/* User-space ioctl definitions */
-
-#else /* __KERNEL__ */
-
-
 #define MTD_ERASE_PENDING      	0x01
 #define MTD_ERASING		0x02
 #define MTD_ERASE_SUSPEND	0x04
 #define MTD_ERASE_DONE          0x08
 #define MTD_ERASE_FAILED        0x10
 
+/* If the erase fails, fail_addr might indicate exactly which block failed.  If
+   fail_addr = 0xffffffff, the failure was not at the device level or was not
+   specific to any particular block. */
 struct erase_info {
 	struct mtd_info *mtd;
 	u_int32_t addr;
 	u_int32_t len;
+	u_int32_t fail_addr;
 	u_long time;
 	u_long retries;
 	u_int dev;
@@ -150,6 +68,7 @@ struct mtd_info {
 
 	u_int32_t oobblock;  // Size of OOB blocks (e.g. 512)
 	u_int32_t oobsize;   // Amount of OOB data per block (e.g. 16)
+	u_int32_t oobavail;  // Number of bytes in OOB area available for fs 
 	u_int32_t ecctype;
 	u_int32_t eccsize;
 	
@@ -223,6 +142,10 @@ struct mtd_info {
 	int (*suspend) (struct mtd_info *mtd);
 	void (*resume) (struct mtd_info *mtd);
 
+	/* Bad block management functions */
+	int (*block_isbad) (struct mtd_info *mtd, loff_t ofs);
+	int (*block_markbad) (struct mtd_info *mtd, loff_t ofs);
+
 	void *priv;
 
 	struct module *owner;
@@ -288,6 +211,4 @@ int default_mtd_readv(struct mtd_info *mtd, struct kvec *vecs,
 
 #endif /* CONFIG_MTD_DEBUG */
 
-#endif /* __KERNEL__ */
-
 #endif /* __MTD_MTD_H__ */
diff --git a/include/linux/mtd/nftl.h b/include/linux/mtd/nftl.h
index fd57ffddd69a..d35d2c21ff3e 100644
--- a/include/linux/mtd/nftl.h
+++ b/include/linux/mtd/nftl.h
@@ -1,5 +1,5 @@
 /*
- * $Id: nftl.h,v 1.13 2003/05/23 11:25:02 dwmw2 Exp $
+ * $Id: nftl.h,v 1.16 2004/06/30 14:49:00 dbrown Exp $
  *
  * (C) 1999-2003 David Woodhouse <dwmw2@infradead.org>
  */
@@ -10,71 +10,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/blktrans.h>
 
-/* Block Control Information */
-
-struct nftl_bci {
-	unsigned char ECCSig[6];
-	__u8 Status;
-	__u8 Status1;
-}__attribute__((packed));
-
-/* Unit Control Information */
-
-struct nftl_uci0 {
-	__u16 VirtUnitNum;
-	__u16 ReplUnitNum;
-	__u16 SpareVirtUnitNum;
-	__u16 SpareReplUnitNum;
-} __attribute__((packed));
-
-struct nftl_uci1 {
-	__u32 WearInfo;
-	__u16 EraseMark;
-	__u16 EraseMark1;
-} __attribute__((packed));
-
-struct nftl_uci2 {
-        __u16 FoldMark;
-        __u16 FoldMark1;
-	__u32 unused;
-} __attribute__((packed));
-
-union nftl_uci {
-	struct nftl_uci0 a;
-	struct nftl_uci1 b;
-	struct nftl_uci2 c;
-};
-
-struct nftl_oob {
-	struct nftl_bci b;
-	union nftl_uci u;
-};
-
-/* NFTL Media Header */
-
-struct NFTLMediaHeader {
-	char DataOrgID[6];
-	__u16 NumEraseUnits;
-	__u16 FirstPhysicalEUN;
-	__u32 FormattedSize;
-	unsigned char UnitSizeFactor;
-} __attribute__((packed));
-
-#define MAX_ERASE_ZONES (8192 - 512)
-
-#define ERASE_MARK 0x3c69
-#define SECTOR_FREE 0xff
-#define SECTOR_USED 0x55
-#define SECTOR_IGNORE 0x11
-#define SECTOR_DELETED 0x00
-
-#define FOLD_MARK_IN_PROGRESS 0x5555
-
-#define ZONE_GOOD 0xff
-#define ZONE_BAD_ORIGINAL 0
-#define ZONE_BAD_MARKED 7
-
-#ifdef __KERNEL__
+#include <mtd/nftl-user.h>
 
 /* these info are used in ReplUnitTable */
 #define BLOCK_NIL          0xffff /* last block of a chain */
@@ -101,6 +37,7 @@ struct NFTLrecord {
         unsigned int nb_blocks;		/* number of physical blocks */
         unsigned int nb_boot_blocks;	/* number of blocks used by the bios */
         struct erase_info instr;
+	struct nand_oobinfo oobinfo;
 };
 
 int NFTL_mount(struct NFTLrecord *s);
@@ -114,6 +51,4 @@ int NFTL_formatblock(struct NFTLrecord *s, int block);
 #define MAX_SECTORS_PER_UNIT 64
 #define NFTL_PARTN_BITS 4
 
-#endif /* __KERNEL__ */
-
 #endif /* __MTD_NFTL_H__ */
diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h
index 5c5f8770b86d..100ea79de16d 100644
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -5,7 +5,7 @@
  *
  * This code is GPL
  *
- * $Id: partitions.h,v 1.14 2003/05/20 21:56:29 dwmw2 Exp $
+ * $Id: partitions.h,v 1.15 2003/07/09 11:15:43 dwmw2 Exp $
  */
 
 #ifndef MTD_PARTITIONS_H
@@ -50,7 +50,7 @@ struct mtd_partition {
 #define MTDPART_SIZ_FULL	(0)
 
 
-int add_mtd_partitions(struct mtd_info *, struct mtd_partition *, int);
+int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int);
 int del_mtd_partitions(struct mtd_info *);
 
 /*