doc2000.h (1a247ba7fa5fb09f56892a09a990f03ce564b3e2) doc2000.h (cfa460adfdefcc30d104e1a9ee44994ee349bb7b)
1/*
2 * Linux driver for Disk-On-Chip devices
3 *
4 * Copyright (C) 1999 Machine Vision Holdings, Inc.
5 * Copyright (C) 2001-2003 David Woodhouse <dwmw2@infradead.org>
6 * Copyright (C) 2002-2003 Greg Ungerer <gerg@snapgear.com>
7 * Copyright (C) 2002-2003 SnapGear Inc
8 *
9 * $Id: doc2000.h,v 1.25 2005/11/07 11:14:54 gleixner Exp $
10 *
11 * Released under GPL
12 */
1
13
2/* Linux driver for Disk-On-Chip 2000 */
3/* (c) 1999 Machine Vision Holdings, Inc. */
4/* Author: David Woodhouse <dwmw2@mvhi.com> */
5/* $Id: doc2000.h,v 1.15 2001/09/19 00:22:15 dwmw2 Exp $ */
6
7#ifndef __MTD_DOC2000_H__
8#define __MTD_DOC2000_H__
9
14#ifndef __MTD_DOC2000_H__
15#define __MTD_DOC2000_H__
16
10struct DiskOnChip;
17#include <linux/mtd/mtd.h>
18#if 0
19#include <linux/mutex.h>
20#endif
11
21
12#include <linux/mtd/nftl.h>
13
14#define DoC_Sig1 0
15#define DoC_Sig2 1
16
17#define DoC_ChipID 0x1000
18#define DoC_DOCStatus 0x1001
19#define DoC_DOCControl 0x1002
20#define DoC_FloorSelect 0x1003
21#define DoC_CDSNControl 0x1004

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35#define DoC_ReadPipeInit 0x101d
36#define DoC_WritePipeTerm 0x101e
37#define DoC_LastDataRead 0x101f
38#define DoC_NOP 0x1020
39
40#define DoC_Mil_CDSN_IO 0x0800
41#define DoC_2k_CDSN_IO 0x1800
42
22#define DoC_Sig1 0
23#define DoC_Sig2 1
24
25#define DoC_ChipID 0x1000
26#define DoC_DOCStatus 0x1001
27#define DoC_DOCControl 0x1002
28#define DoC_FloorSelect 0x1003
29#define DoC_CDSNControl 0x1004

--- 13 unchanged lines hidden (view full) ---

43#define DoC_ReadPipeInit 0x101d
44#define DoC_WritePipeTerm 0x101e
45#define DoC_LastDataRead 0x101f
46#define DoC_NOP 0x1020
47
48#define DoC_Mil_CDSN_IO 0x0800
49#define DoC_2k_CDSN_IO 0x1800
50
43#define ReadDOC_(adr, reg) ((volatile unsigned char)(*(volatile __u8 *)(((unsigned long)adr)+((reg)))))
44#define WriteDOC_(d, adr, reg) do{ *(volatile __u8 *)(((unsigned long)adr)+((reg))) = (__u8)d; eieio();} while(0)
51#define DoC_Mplus_NOP 0x1002
52#define DoC_Mplus_AliasResolution 0x1004
53#define DoC_Mplus_DOCControl 0x1006
54#define DoC_Mplus_AccessStatus 0x1008
55#define DoC_Mplus_DeviceSelect 0x1008
56#define DoC_Mplus_Configuration 0x100a
57#define DoC_Mplus_OutputControl 0x100c
58#define DoC_Mplus_FlashControl 0x1020
59#define DoC_Mplus_FlashSelect 0x1022
60#define DoC_Mplus_FlashCmd 0x1024
61#define DoC_Mplus_FlashAddress 0x1026
62#define DoC_Mplus_FlashData0 0x1028
63#define DoC_Mplus_FlashData1 0x1029
64#define DoC_Mplus_ReadPipeInit 0x102a
65#define DoC_Mplus_LastDataRead 0x102c
66#define DoC_Mplus_LastDataRead1 0x102d
67#define DoC_Mplus_WritePipeTerm 0x102e
68#define DoC_Mplus_ECCSyndrome0 0x1040
69#define DoC_Mplus_ECCSyndrome1 0x1041
70#define DoC_Mplus_ECCSyndrome2 0x1042
71#define DoC_Mplus_ECCSyndrome3 0x1043
72#define DoC_Mplus_ECCSyndrome4 0x1044
73#define DoC_Mplus_ECCSyndrome5 0x1045
74#define DoC_Mplus_ECCConf 0x1046
75#define DoC_Mplus_Toggle 0x1046
76#define DoC_Mplus_DownloadStatus 0x1074
77#define DoC_Mplus_CtrlConfirm 0x1076
78#define DoC_Mplus_Power 0x1fff
45
79
46#define DOC_IOREMAP_LEN 0x4000
80/* How to access the device?
81 * On ARM, it'll be mmap'd directly with 32-bit wide accesses.
82 * On PPC, it's mmap'd and 16-bit wide.
83 * Others use readb/writeb
84 */
85#if defined(__arm__)
86#define ReadDOC_(adr, reg) ((unsigned char)(*(volatile __u32 *)(((unsigned long)adr)+((reg)<<2))))
87#define WriteDOC_(d, adr, reg) do{ *(volatile __u32 *)(((unsigned long)adr)+((reg)<<2)) = (__u32)d; wmb();} while(0)
88#define DOC_IOREMAP_LEN 0x8000
89#elif defined(__ppc__)
90#define ReadDOC_(adr, reg) ((unsigned char)(*(volatile __u16 *)(((unsigned long)adr)+((reg)<<1))))
91#define WriteDOC_(d, adr, reg) do{ *(volatile __u16 *)(((unsigned long)adr)+((reg)<<1)) = (__u16)d; wmb();} while(0)
92#define DOC_IOREMAP_LEN 0x4000
93#else
94#define ReadDOC_(adr, reg) readb((void __iomem *)(adr) + (reg))
95#define WriteDOC_(d, adr, reg) writeb(d, (void __iomem *)(adr) + (reg))
96#define DOC_IOREMAP_LEN 0x2000
47
97
98#endif
99
100#if defined(__i386__) || defined(__x86_64__)
101#define USE_MEMCPY
102#endif
103
48/* These are provided to directly use the DoC_xxx defines */
49#define ReadDOC(adr, reg) ReadDOC_(adr,DoC_##reg)
50#define WriteDOC(d, adr, reg) WriteDOC_(d,adr,DoC_##reg)
51
52#define DOC_MODE_RESET 0
53#define DOC_MODE_NORMAL 1
54#define DOC_MODE_RESERVED1 2
55#define DOC_MODE_RESERVED2 3
56
104/* These are provided to directly use the DoC_xxx defines */
105#define ReadDOC(adr, reg) ReadDOC_(adr,DoC_##reg)
106#define WriteDOC(d, adr, reg) WriteDOC_(d,adr,DoC_##reg)
107
108#define DOC_MODE_RESET 0
109#define DOC_MODE_NORMAL 1
110#define DOC_MODE_RESERVED1 2
111#define DOC_MODE_RESERVED2 3
112
57#define DOC_MODE_MDWREN 4
58#define DOC_MODE_CLR_ERR 0x80
113#define DOC_MODE_CLR_ERR 0x80
114#define DOC_MODE_RST_LAT 0x10
115#define DOC_MODE_BDECT 0x08
116#define DOC_MODE_MDWREN 0x04
59
117
60#define DOC_ChipID_UNKNOWN 0x00
61#define DOC_ChipID_Doc2k 0x20
118#define DOC_ChipID_Doc2k 0x20
119#define DOC_ChipID_Doc2kTSOP 0x21 /* internal number for MTD */
62#define DOC_ChipID_DocMil 0x30
120#define DOC_ChipID_DocMil 0x30
121#define DOC_ChipID_DocMilPlus32 0x40
122#define DOC_ChipID_DocMilPlus16 0x41
63
64#define CDSN_CTRL_FR_B 0x80
123
124#define CDSN_CTRL_FR_B 0x80
125#define CDSN_CTRL_FR_B0 0x40
126#define CDSN_CTRL_FR_B1 0x80
127
65#define CDSN_CTRL_ECC_IO 0x20
66#define CDSN_CTRL_FLASH_IO 0x10
67#define CDSN_CTRL_WP 0x08
68#define CDSN_CTRL_ALE 0x04
69#define CDSN_CTRL_CLE 0x02
70#define CDSN_CTRL_CE 0x01
71
72#define DOC_ECC_RESET 0
73#define DOC_ECC_ERROR 0x80
74#define DOC_ECC_RW 0x20
75#define DOC_ECC__EN 0x08
76#define DOC_TOGGLE_BIT 0x04
77#define DOC_ECC_RESV 0x02
78#define DOC_ECC_IGNORE 0x01
79
128#define CDSN_CTRL_ECC_IO 0x20
129#define CDSN_CTRL_FLASH_IO 0x10
130#define CDSN_CTRL_WP 0x08
131#define CDSN_CTRL_ALE 0x04
132#define CDSN_CTRL_CLE 0x02
133#define CDSN_CTRL_CE 0x01
134
135#define DOC_ECC_RESET 0
136#define DOC_ECC_ERROR 0x80
137#define DOC_ECC_RW 0x20
138#define DOC_ECC__EN 0x08
139#define DOC_TOGGLE_BIT 0x04
140#define DOC_ECC_RESV 0x02
141#define DOC_ECC_IGNORE 0x01
142
143#define DOC_FLASH_CE 0x80
144#define DOC_FLASH_WP 0x40
145#define DOC_FLASH_BANK 0x02
146
80/* We have to also set the reserved bit 1 for enable */
81#define DOC_ECC_EN (DOC_ECC__EN | DOC_ECC_RESV)
82#define DOC_ECC_DIS (DOC_ECC_RESV)
83
147/* We have to also set the reserved bit 1 for enable */
148#define DOC_ECC_EN (DOC_ECC__EN | DOC_ECC_RESV)
149#define DOC_ECC_DIS (DOC_ECC_RESV)
150
151struct Nand {
152 char floor, chip;
153 unsigned long curadr;
154 unsigned char curmode;
155 /* Also some erase/write/pipeline info when we get that far */
156};
157
84#define MAX_FLOORS 4
85#define MAX_CHIPS 4
86
158#define MAX_FLOORS 4
159#define MAX_CHIPS 4
160
87#define MAX_FLOORS_MIL 4
161#define MAX_FLOORS_MIL 1
88#define MAX_CHIPS_MIL 1
89
162#define MAX_CHIPS_MIL 1
163
164#define MAX_FLOORS_MPLUS 2
165#define MAX_CHIPS_MPLUS 1
166
90#define ADDR_COLUMN 1
91#define ADDR_PAGE 2
92#define ADDR_COLUMN_PAGE 3
93
167#define ADDR_COLUMN 1
168#define ADDR_PAGE 2
169#define ADDR_COLUMN_PAGE 3
170
94struct Nand {
95 char floor, chip;
96 unsigned long curadr;
97 unsigned char curmode;
98 /* Also some erase/write/pipeline info when we get that far */
99};
100
101struct DiskOnChip {
102 unsigned long physadr;
171struct DiskOnChip {
172 unsigned long physadr;
103 unsigned long virtadr;
173 void __iomem *virtadr;
104 unsigned long totlen;
174 unsigned long totlen;
105 char* name;
106 char ChipID; /* Type of DiskOnChip */
175 unsigned char ChipID; /* Type of DiskOnChip */
107 int ioreg;
108
176 int ioreg;
177
109 char* chips_name;
110 unsigned long mfr; /* Flash IDs - only one type of flash per device */
111 unsigned long id;
112 int chipshift;
113 char page256;
114 char pageadrlen;
178 unsigned long mfr; /* Flash IDs - only one type of flash per device */
179 unsigned long id;
180 int chipshift;
181 char page256;
182 char pageadrlen;
183 char interleave; /* Internal interleaving - Millennium Plus style */
115 unsigned long erasesize;
116
117 int curfloor;
118 int curchip;
119
120 int numchips;
121 struct Nand *chips;
184 unsigned long erasesize;
185
186 int curfloor;
187 int curchip;
188
189 int numchips;
190 struct Nand *chips;
122
123 int nftl_found;
124 struct NFTLrecord nftl;
191 struct mtd_info *nextdoc;
192/* XXX U-BOOT XXX */
193#if 0
194 struct mutex lock;
195#endif
125};
126
196};
197
127#define SECTORSIZE 512
128
129/* Return codes from doc_write(), doc_read(), and doc_erase().
130 */
131#define DOC_OK 0
132#define DOC_EIO 1
133#define DOC_EINVAL 2
134#define DOC_EECC 3
135#define DOC_ETIMEOUT 4
136
137/*
138 * Function Prototypes
139 */
140int doc_decode_ecc(unsigned char sector[512], unsigned char ecc1[6]);
141
198int doc_decode_ecc(unsigned char sector[512], unsigned char ecc1[6]);
199
142int doc_rw(struct DiskOnChip* this, int cmd, loff_t from, size_t len,
143 size_t *retlen, u_char *buf);
144int doc_read_ecc(struct DiskOnChip* this, loff_t from, size_t len,
145 size_t *retlen, u_char *buf, u_char *eccbuf);
146int doc_write_ecc(struct DiskOnChip* this, loff_t to, size_t len,
147 size_t *retlen, const u_char *buf, u_char *eccbuf);
148int doc_read_oob(struct DiskOnChip* this, loff_t ofs, size_t len,
149 size_t *retlen, u_char *buf);
150int doc_write_oob(struct DiskOnChip* this, loff_t ofs, size_t len,
151 size_t *retlen, const u_char *buf);
152int doc_erase (struct DiskOnChip* this, loff_t ofs, size_t len);
153
154void doc_probe(unsigned long physadr);
155
156void doc_print(struct DiskOnChip*);
157
200/* XXX U-BOOT XXX */
201#if 1
158/*
202/*
159 * Standard NAND flash commands
160 */
161#define NAND_CMD_READ0 0
162#define NAND_CMD_READ1 1
163#define NAND_CMD_PAGEPROG 0x10
164#define NAND_CMD_READOOB 0x50
165#define NAND_CMD_ERASE1 0x60
166#define NAND_CMD_STATUS 0x70
167#define NAND_CMD_SEQIN 0x80
168#define NAND_CMD_READID 0x90
169#define NAND_CMD_ERASE2 0xd0
170#define NAND_CMD_RESET 0xff
171
172/*
173 * NAND Flash Manufacturer ID Codes
174 */
203 * NAND Flash Manufacturer ID Codes
204 */
175#define NAND_MFR_TOSHIBA 0x98
176#define NAND_MFR_SAMSUNG 0xec
205#define NAND_MFR_TOSHIBA 0x98
206#define NAND_MFR_SAMSUNG 0xec
207#endif
177
208
178/*
179 * NAND Flash Device ID Structure
180 *
181 * Structure overview:
182 *
183 * name - Complete name of device
184 *
185 * manufacture_id - manufacturer ID code of device.
186 *
187 * model_id - model ID code of device.
188 *
189 * chipshift - total number of address bits for the device which
190 * is used to calculate address offsets and the total
191 * number of bytes the device is capable of.
192 *
193 * page256 - denotes if flash device has 256 byte pages or not.
194 *
195 * pageadrlen - number of bytes minus one needed to hold the
196 * complete address into the flash array. Keep in
197 * mind that when a read or write is done to a
198 * specific address, the address is input serially
199 * 8 bits at a time. This structure member is used
200 * by the read/write routines as a loop index for
201 * shifting the address out 8 bits at a time.
202 *
203 * erasesize - size of an erase block in the flash device.
204 */
205struct nand_flash_dev {
206 char * name;
207 int manufacture_id;
208 int model_id;
209 int chipshift;
210 char page256;
211 char pageadrlen;
212 unsigned long erasesize;
213 int bus16;
214};
215
216#endif /* __MTD_DOC2000_H__ */
209#endif /* __MTD_DOC2000_H__ */