drivers/mtd/chips/jedec_probe.c

   1 /*
   2    Common Flash Interface probe code.
   3    (C) 2000 Red Hat. GPL'd.
   4    $Id: jedec_probe.c,v 1.19 2002/11/12 13:12:10 dwmw2 Exp $
   5    See JEDEC (http://www.jedec.org/) standard JESD21C (section 3.5)
   6    for the standard this probe goes back to.
   7 */
   8
   9 #include <linux/config.h>
  10 #include <linux/module.h>
  11 #include <linux/types.h>
  12 #include <linux/kernel.h>
  13 #include <asm/io.h>
  14 #include <asm/byteorder.h>
  15 #include <linux/errno.h>
  16 #include <linux/slab.h>
  17 #include <linux/interrupt.h>
  18
  19 #include <linux/mtd/map.h>
  20 #include <linux/mtd/cfi.h>
  21 #include <linux/mtd/gen_probe.h>
  22
  23 /* Manufacturers */
  24 #define MANUFACTURER_AMD        0x0001
  25 #define MANUFACTURER_ATMEL      0x001f
  26 #define MANUFACTURER_FUJITSU    0x0004
  27 #define MANUFACTURER_INTEL      0x0089
  28 #define MANUFACTURER_MACRONIX   0x00C2
  29 #define MANUFACTURER_ST         0x0020
  30 #define MANUFACTURER_SST        0x00BF
  31 #define MANUFACTURER_TOSHIBA    0x0098
  32
  33
  34 /* AMD */
  35 #define AM29F800BB      0x2258
  36 #define AM29F800BT      0x22D6
  37 #define AM29LV800BB     0x225B
  38 #define AM29LV800BT     0x22DA
  39 #define AM29LV160DT     0x22C4
  40 #define AM29LV160DB     0x2249
  41 #define AM29F017D       0x003D
  42 #define AM29F016        0x00AD
  43 #define AM29F080        0x00D5
  44 #define AM29F040        0x00A4
  45 #define AM29LV040B      0x004F
  46 #define AM29F032B       0x0041
  47
  48 /* Atmel */
  49 #define AT49BV512       0x0003
  50 #define AT29LV512       0x003d
  51 #define AT49BV16X       0x00C0
  52 #define AT49BV16XT      0x00C2
  53 #define AT49BV32X       0x00C8
  54 #define AT49BV32XT      0x00C9
  55
  56 /* Fujitsu */
  57 #define MBM29LV650UE    0x22D7
  58 #define MBM29LV320TE    0x22F6
  59 #define MBM29LV320BE    0x22F9
  60 #define MBM29LV160TE    0x22C4
  61 #define MBM29LV160BE    0x2249
  62 #define MBM29LV800BA    0x225B
  63 #define MBM29LV800TA    0x22DA
  64
  65 /* Intel */
  66 #define I28F004B3T      0x00d4
  67 #define I28F004B3B      0x00d5
  68 #define I28F400B3T      0x8894
  69 #define I28F400B3B      0x8895
  70 #define I28F008S5       0x00a6
  71 #define I28F016S5       0x00a0
  72 #define I28F008SA       0x00a2
  73 #define I28F008B3T      0x00d2
  74 #define I28F008B3B      0x00d3
  75 #define I28F800B3T      0x8892
  76 #define I28F800B3B      0x8893
  77 #define I28F016S3       0x00aa
  78 #define I28F016B3T      0x00d0
  79 #define I28F016B3B      0x00d1
  80 #define I28F160B3T      0x8890
  81 #define I28F160B3B      0x8891
  82 #define I28F320B3T      0x8896
  83 #define I28F320B3B      0x8897
  84 #define I28F640B3T      0x8898
  85 #define I28F640B3B      0x8899
  86 #define I82802AB        0x00ad
  87 #define I82802AC        0x00ac
  88
  89 /* Macronix */
  90 #define MX29LV160T      0x22C4
  91 #define MX29LV160B      0x2249
  92 #define MX29F016        0x00AD
  93 #define MX29F004T       0x0045
  94 #define MX29F004B       0x0046
  95
  96 /* ST - www.st.com */
  97 #define M29W800T        0x00D7
  98 #define M29W160DT       0x22C4
  99 #define M29W160DB       0x2249
 100 #define M29W040B        0x00E3
 101
 102 /* SST */
 103 #define SST29EE512      0x005d
 104 #define SST29LE512      0x003d
 105 #define SST39LF800      0x2781
 106 #define SST39LF160      0x2782
 107 #define SST39LF512      0x00D4
 108 #define SST39LF010      0x00D5
 109 #define SST39LF020      0x00D6
 110 #define SST39LF040      0x00D7
 111 #define SST39SF010A     0x00B5
 112 #define SST39SF020A     0x00B6
 113 #define SST49LF030A     0x001C
 114 #define SST49LF040A     0x0051
 115 #define SST49LF080A     0x005B
 116
 117 /* Toshiba */
 118 #define TC58FVT160      0x00C2
 119 #define TC58FVB160      0x0043
 120 #define TC58FVT321      0x009A
 121 #define TC58FVB321      0x009C
 122 #define TC58FVT641      0x0093
 123 #define TC58FVB641      0x0095
 124
 125
 126 struct amd_flash_info {
 127         const __u16 mfr_id;
 128         const __u16 dev_id;
 129         const char *name;
 130         const int DevSize;
 131         const int InterfaceDesc;
 132         const int NumEraseRegions;
 133         const int CmdSet;
 134         const ulong regions[4];
 135 };
 136
 137 #define ERASEINFO(size,blocks) (size<<8)|(blocks-1)
 138
 139 #define SIZE_64KiB  16
 140 #define SIZE_128KiB 17
 141 #define SIZE_256KiB 18
 142 #define SIZE_512KiB 19
 143 #define SIZE_1MiB   20
 144 #define SIZE_2MiB   21
 145 #define SIZE_4MiB   22
 146 #define SIZE_8MiB   23
 147
 148 static const struct amd_flash_info jedec_table[] = {
 149         {
 150                 mfr_id: MANUFACTURER_AMD,
 151                 dev_id: AM29F032B,
 152                 name: "AMD AM29F032B",
 153                 DevSize: SIZE_4MiB,
 154                 CmdSet: P_ID_AMD_STD,
 155                 NumEraseRegions: 1,
 156                 regions: {ERASEINFO(0x10000,64)
 157                 }
 158         }, {
 159                 mfr_id: MANUFACTURER_AMD,
 160                 dev_id: AM29LV160DT,
 161                 name: "AMD AM29LV160DT",
 162                 DevSize: SIZE_2MiB,
 163                 CmdSet: P_ID_AMD_STD,
 164                 NumEraseRegions: 4,
 165                 regions: {ERASEINFO(0x10000,31),
 166                           ERASEINFO(0x08000,1),
 167                           ERASEINFO(0x02000,2),
 168                           ERASEINFO(0x04000,1)
 169                 }
 170         }, {
 171                 mfr_id: MANUFACTURER_AMD,
 172                 dev_id: AM29LV160DB,
 173                 name: "AMD AM29LV160DB",
 174                 DevSize: SIZE_2MiB,
 175                 CmdSet: P_ID_AMD_STD,
 176                 NumEraseRegions: 4,
 177                 regions: {ERASEINFO(0x04000,1),
 178                           ERASEINFO(0x02000,2),
 179                           ERASEINFO(0x08000,1),
 180                           ERASEINFO(0x10000,31)
 181                 }
 182         }, {
 183                 mfr_id: MANUFACTURER_TOSHIBA,
 184                 dev_id: TC58FVT160,
 185                 name: "Toshiba TC58FVT160",
 186                 DevSize: SIZE_2MiB,
 187                 CmdSet: P_ID_AMD_STD,
 188                 NumEraseRegions: 4,
 189                 regions: {ERASEINFO(0x10000,31),
 190                           ERASEINFO(0x08000,1),
 191                           ERASEINFO(0x02000,2),
 192                           ERASEINFO(0x04000,1)
 193                 }
 194         }, {
 195                 mfr_id: MANUFACTURER_TOSHIBA,
 196                 dev_id: TC58FVB160,
 197                 name: "Toshiba TC58FVB160",
 198                 DevSize: SIZE_2MiB,
 199                 CmdSet: P_ID_AMD_STD,
 200                 NumEraseRegions: 4,
 201                 regions: {ERASEINFO(0x04000,1),
 202                           ERASEINFO(0x02000,2),
 203                           ERASEINFO(0x08000,1),
 204                           ERASEINFO(0x10000,31)
 205                 }
 206         }, {
 207                 mfr_id: MANUFACTURER_TOSHIBA,
 208                 dev_id: TC58FVB321,
 209                 name: "Toshiba TC58FVB321",
 210                 DevSize: SIZE_4MiB,
 211                 CmdSet: P_ID_AMD_STD,
 212                 NumEraseRegions: 2,
 213                 regions: {ERASEINFO(0x02000,8),
 214                           ERASEINFO(0x10000,63)
 215                 }
 216         }, {
 217                 mfr_id: MANUFACTURER_TOSHIBA,
 218                 dev_id: TC58FVT321,
 219                 name: "Toshiba TC58FVT321",
 220                 DevSize: SIZE_4MiB,
 221                 CmdSet: P_ID_AMD_STD,
 222                 NumEraseRegions: 2,
 223                 regions: {ERASEINFO(0x10000,63),
 224                           ERASEINFO(0x02000,8)
 225                 }
 226         }, {
 227                 mfr_id: MANUFACTURER_TOSHIBA,
 228                 dev_id: TC58FVB641,
 229                 name: "Toshiba TC58FVB641",
 230                 DevSize: SIZE_8MiB,
 231                 CmdSet: P_ID_AMD_STD,
 232                 NumEraseRegions: 2,
 233                 regions: {ERASEINFO(0x02000,8),
 234                           ERASEINFO(0x10000,127)
 235                 }
 236         }, {
 237                 mfr_id: MANUFACTURER_TOSHIBA,
 238                 dev_id: TC58FVT641,
 239                 name: "Toshiba TC58FVT641",
 240                 DevSize: SIZE_8MiB,
 241                 CmdSet: P_ID_AMD_STD,
 242                 NumEraseRegions: 2,
 243                 regions: {ERASEINFO(0x10000,127),
 244                           ERASEINFO(0x02000,8)
 245                 }
 246         }, {
 247                 mfr_id: MANUFACTURER_FUJITSU,
 248                 dev_id: MBM29LV650UE,
 249                 name: "Fujitsu MBM29LV650UE",
 250                 DevSize: SIZE_8MiB,
 251                 CmdSet: P_ID_AMD_STD,
 252                 NumEraseRegions: 1,
 253                 regions: {ERASEINFO(0x10000,128)
 254                 }
 255         }, {
 256                 mfr_id: MANUFACTURER_FUJITSU,
 257                 dev_id: MBM29LV320TE,
 258                 name: "Fujitsu MBM29LV320TE",
 259                 DevSize: SIZE_4MiB,
 260                 CmdSet: P_ID_AMD_STD,
 261                 NumEraseRegions: 2,
 262                 regions: {ERASEINFO(0x10000,63),
 263                           ERASEINFO(0x02000,8)
 264                 }
 265         }, {
 266                 mfr_id: MANUFACTURER_FUJITSU,
 267                 dev_id: MBM29LV320BE,
 268                 name: "Fujitsu MBM29LV320BE",
 269                 DevSize: SIZE_4MiB,
 270                 CmdSet: P_ID_AMD_STD,
 271                 NumEraseRegions: 2,
 272                 regions: {ERASEINFO(0x02000,8),
 273                           ERASEINFO(0x10000,63)
 274                 }
 275         }, {
 276                 mfr_id: MANUFACTURER_FUJITSU,
 277                 dev_id: MBM29LV160TE,
 278                 name: "Fujitsu MBM29LV160TE",
 279                 DevSize: SIZE_2MiB,
 280                 CmdSet: P_ID_AMD_STD,
 281                 NumEraseRegions: 4,
 282                 regions: {ERASEINFO(0x10000,31),
 283                           ERASEINFO(0x08000,1),
 284                           ERASEINFO(0x02000,2),
 285                           ERASEINFO(0x04000,1)
 286                 }
 287         }, {
 288                 mfr_id: MANUFACTURER_FUJITSU,
 289                 dev_id: MBM29LV160BE,
 290                 name: "Fujitsu MBM29LV160BE",
 291                 DevSize: SIZE_2MiB,
 292                 CmdSet: P_ID_AMD_STD,
 293                 NumEraseRegions: 4,
 294                 regions: {ERASEINFO(0x04000,1),
 295                           ERASEINFO(0x02000,2),
 296                           ERASEINFO(0x08000,1),
 297                           ERASEINFO(0x10000,31)
 298                 }
 299         }, {
 300                 mfr_id: MANUFACTURER_FUJITSU,
 301                 dev_id: MBM29LV800BA,
 302                 name: "Fujitsu MBM29LV800BA",
 303                 DevSize: SIZE_1MiB,
 304                 CmdSet: P_ID_AMD_STD,
 305                 NumEraseRegions: 4,
 306                 regions: {ERASEINFO(0x04000,1),
 307                           ERASEINFO(0x02000,2),
 308                           ERASEINFO(0x08000,1),
 309                           ERASEINFO(0x10000,15)
 310                 }
 311         }, {
 312                 mfr_id: MANUFACTURER_FUJITSU,
 313                 dev_id: MBM29LV800TA,
 314                 name: "Fujitsu MBM29LV800TA",
 315                 DevSize: SIZE_1MiB,
 316                 CmdSet: P_ID_AMD_STD,
 317                 NumEraseRegions: 4,
 318                 regions: {ERASEINFO(0x10000,15),
 319                           ERASEINFO(0x08000,1),
 320                           ERASEINFO(0x02000,2),
 321                           ERASEINFO(0x04000,1)
 322                 }
 323         }, {
 324                 mfr_id: MANUFACTURER_AMD,
 325                 dev_id: AM29LV800BB,
 326                 name: "AMD AM29LV800BB",
 327                 DevSize: SIZE_1MiB,
 328                 CmdSet: P_ID_AMD_STD,
 329                 NumEraseRegions: 4,
 330                 regions: {ERASEINFO(0x04000,1),
 331                           ERASEINFO(0x02000,2),
 332                           ERASEINFO(0x08000,1),
 333                           ERASEINFO(0x10000,15),
 334                 }
 335         }, {
 336                 mfr_id: MANUFACTURER_AMD,
 337                 dev_id: AM29F800BB,
 338                 name: "AMD AM29F800BB",
 339                 DevSize: SIZE_1MiB,
 340                 CmdSet: P_ID_AMD_STD,
 341                 NumEraseRegions: 4,
 342                 regions: {ERASEINFO(0x04000,1),
 343                           ERASEINFO(0x02000,2),
 344                           ERASEINFO(0x08000,1),
 345                           ERASEINFO(0x10000,15),
 346                 }
 347         }, {
 348                 mfr_id: MANUFACTURER_AMD,
 349                 dev_id: AM29LV800BT,
 350                 name: "AMD AM29LV800BT",
 351                 DevSize: SIZE_1MiB,
 352                 CmdSet: P_ID_AMD_STD,
 353                 NumEraseRegions: 4,
 354                 regions: {ERASEINFO(0x10000,15),
 355                           ERASEINFO(0x08000,1),
 356                           ERASEINFO(0x02000,2),
 357                           ERASEINFO(0x04000,1)
 358                 }
 359         }, {
 360                 mfr_id: MANUFACTURER_AMD,
 361                 dev_id: AM29F800BT,
 362                 name: "AMD AM29F800BT",
 363                 DevSize: SIZE_1MiB,
 364                 CmdSet: P_ID_AMD_STD,
 365                 NumEraseRegions: 4,
 366                 regions: {ERASEINFO(0x10000,15),
 367                           ERASEINFO(0x08000,1),
 368                           ERASEINFO(0x02000,2),
 369                           ERASEINFO(0x04000,1)
 370                 }
 371         }, {
 372                 mfr_id: MANUFACTURER_AMD,
 373                 dev_id: AM29LV800BB,
 374                 name: "AMD AM29LV800BB",
 375                 DevSize: SIZE_1MiB,
 376                 CmdSet: P_ID_AMD_STD,
 377                 NumEraseRegions: 4,
 378                 regions: {ERASEINFO(0x10000,15),
 379                           ERASEINFO(0x08000,1),
 380                           ERASEINFO(0x02000,2),
 381                           ERASEINFO(0x04000,1)
 382                 }
 383         }, {
 384                 mfr_id:                 MANUFACTURER_INTEL,
 385                 dev_id:                 I28F004B3B,
 386                 name:                   "Intel 28F004B3B",
 387                 DevSize:                SIZE_512KiB,
 388                 CmdSet:                 P_ID_INTEL_STD,
 389                 NumEraseRegions:        2,
 390                 regions: {
 391                         ERASEINFO(0x02000, 8),
 392                         ERASEINFO(0x10000, 7),
 393                 }
 394         }, {
 395                 mfr_id:                 MANUFACTURER_INTEL,
 396                 dev_id:                 I28F004B3T,
 397                 name:                   "Intel 28F004B3T",
 398                 DevSize:                SIZE_512KiB,
 399                 CmdSet:                 P_ID_INTEL_STD,
 400                 NumEraseRegions:        2,
 401                 regions: {
 402                         ERASEINFO(0x10000, 7),
 403                         ERASEINFO(0x02000, 8),
 404                 }
 405         }, {
 406                 mfr_id:                 MANUFACTURER_INTEL,
 407                 dev_id:                 I28F400B3B,
 408                 name:                   "Intel 28F400B3B",
 409                 DevSize:                SIZE_512KiB,
 410                 CmdSet:                 P_ID_INTEL_STD,
 411                 NumEraseRegions:        2,
 412                 regions: {
 413                         ERASEINFO(0x02000, 8),
 414                         ERASEINFO(0x10000, 7),
 415                 }
 416         }, {
 417                 mfr_id:                 MANUFACTURER_INTEL,
 418                 dev_id:                 I28F400B3T,
 419                 name:                   "Intel 28F400B3T",
 420                 DevSize:                SIZE_512KiB,
 421                 CmdSet:                 P_ID_INTEL_STD,
 422                 NumEraseRegions:        2,
 423                 regions: {
 424                         ERASEINFO(0x10000, 7),
 425                         ERASEINFO(0x02000, 8),
 426                 }
 427         }, {
 428                 mfr_id:                 MANUFACTURER_INTEL,
 429                 dev_id:                 I28F008B3B,
 430                 name:                   "Intel 28F008B3B",
 431                 DevSize:                SIZE_1MiB,
 432                 CmdSet:                 P_ID_INTEL_STD,
 433                 NumEraseRegions:        2,
 434                 regions: {
 435                         ERASEINFO(0x02000, 8),
 436                         ERASEINFO(0x10000, 15),
 437                 }
 438         }, {
 439                 mfr_id:                 MANUFACTURER_INTEL,
 440                 dev_id:                 I28F008B3T,
 441                 name:                   "Intel 28F008B3T",
 442                 DevSize:                SIZE_1MiB,
 443                 CmdSet:                 P_ID_INTEL_STD,
 444                 NumEraseRegions:        2,
 445                 regions: {
 446                         ERASEINFO(0x10000, 15),
 447                         ERASEINFO(0x02000, 8),
 448                 }
 449         }, {
 450                 mfr_id: MANUFACTURER_INTEL,
 451                 dev_id: I28F008S5,
 452                 name: "Intel 28F008S5",
 453                 DevSize: SIZE_1MiB,
 454                 CmdSet: P_ID_INTEL_EXT,
 455                 NumEraseRegions: 1,
 456                 regions: {ERASEINFO(0x10000,16),
 457                 }
 458         }, {
 459                 mfr_id: MANUFACTURER_INTEL,
 460                 dev_id: I28F016S5,
 461                 name: "Intel 28F016S5",
 462                 DevSize: SIZE_2MiB,
 463                 CmdSet: P_ID_INTEL_EXT,
 464                 NumEraseRegions: 1,
 465                 regions: {ERASEINFO(0x10000,32),
 466                 }
 467         }, {
 468                 mfr_id:                 MANUFACTURER_INTEL,
 469                 dev_id:                 I28F008SA,
 470                 name:                   "Intel 28F008SA",
 471                 DevSize:                SIZE_1MiB,
 472                 CmdSet:                 P_ID_INTEL_STD,
 473                 NumEraseRegions:        1,
 474                 regions: {
 475                         ERASEINFO(0x10000, 16),
 476                 }
 477         }, {
 478                 mfr_id:                 MANUFACTURER_INTEL,
 479                 dev_id:                 I28F800B3B,
 480                 name:                   "Intel 28F800B3B",
 481                 DevSize:                SIZE_1MiB,
 482                 CmdSet:                 P_ID_INTEL_STD,
 483                 NumEraseRegions:        2,
 484                 regions: {
 485                         ERASEINFO(0x02000, 8),
 486                         ERASEINFO(0x10000, 15),
 487                 }
 488         }, {
 489                 mfr_id:                 MANUFACTURER_INTEL,
 490                 dev_id:                 I28F800B3T,
 491                 name:                   "Intel 28F800B3T",
 492                 DevSize:                SIZE_1MiB,
 493                 CmdSet:                 P_ID_INTEL_STD,
 494                 NumEraseRegions:        2,
 495                 regions: {
 496                         ERASEINFO(0x10000, 15),
 497                         ERASEINFO(0x02000, 8),
 498                 }
 499         }, {
 500                 mfr_id:                 MANUFACTURER_INTEL,
 501                 dev_id:                 I28F016B3B,
 502                 name:                   "Intel 28F016B3B",
 503                 DevSize:                SIZE_2MiB,
 504                 CmdSet:                 P_ID_INTEL_STD,
 505                 NumEraseRegions:        2,
 506                 regions: {
 507                         ERASEINFO(0x02000, 8),
 508                         ERASEINFO(0x10000, 31),
 509                 }
 510         }, {
 511                 mfr_id:                 MANUFACTURER_INTEL,
 512                 dev_id:                 I28F016S3,
 513                 name:                   "Intel I28F016S3",
 514                 DevSize:                SIZE_2MiB,
 515                 CmdSet:                 P_ID_INTEL_STD,
 516                 NumEraseRegions:        1,
 517                 regions: {
 518                         ERASEINFO(0x10000, 32),
 519                 }
 520         }, {
 521                 mfr_id:                 MANUFACTURER_INTEL,
 522                 dev_id:                 I28F016B3T,
 523                 name:                   "Intel 28F016B3T",
 524                 DevSize:                SIZE_2MiB,
 525                 CmdSet:                 P_ID_INTEL_STD,
 526                 NumEraseRegions:        2,
 527                 regions: {
 528                         ERASEINFO(0x10000, 31),
 529                         ERASEINFO(0x02000, 8),
 530                 }
 531         }, {
 532                 mfr_id:                 MANUFACTURER_INTEL,
 533                 dev_id:                 I28F160B3B,
 534                 name:                   "Intel 28F160B3B",
 535                 DevSize:                SIZE_2MiB,
 536                 CmdSet:                 P_ID_INTEL_STD,
 537                 NumEraseRegions:        2,
 538                 regions: {
 539                         ERASEINFO(0x02000, 8),
 540                         ERASEINFO(0x10000, 31),
 541                 }
 542         }, {
 543                 mfr_id:                 MANUFACTURER_INTEL,
 544                 dev_id:                 I28F160B3T,
 545                 name:                   "Intel 28F160B3T",
 546                 DevSize:                SIZE_2MiB,
 547                 CmdSet:                 P_ID_INTEL_STD,
 548                 NumEraseRegions:        2,
 549                 regions: {
 550                         ERASEINFO(0x10000, 31),
 551                         ERASEINFO(0x02000, 8),
 552                 }
 553         }, {
 554                 mfr_id:                 MANUFACTURER_INTEL,
 555                 dev_id:                 I28F320B3B,
 556                 name:                   "Intel 28F320B3B",
 557                 DevSize:                SIZE_4MiB,
 558                 CmdSet:                 P_ID_INTEL_STD,
 559                 NumEraseRegions:        2,
 560                 regions: {
 561                         ERASEINFO(0x02000, 8),
 562                         ERASEINFO(0x10000, 63),
 563                 }
 564         }, {
 565                 mfr_id:                 MANUFACTURER_INTEL,
 566                 dev_id:                 I28F320B3T,
 567                 name:                   "Intel 28F320B3T",
 568                 DevSize:                SIZE_4MiB,
 569                 CmdSet:                 P_ID_INTEL_STD,
 570                 NumEraseRegions:        2,
 571                 regions: {
 572                         ERASEINFO(0x10000, 63),
 573                         ERASEINFO(0x02000, 8),
 574                 }
 575         }, {
 576                 mfr_id:                 MANUFACTURER_INTEL,
 577                 dev_id:                 I28F640B3B,
 578                 name:                   "Intel 28F640B3B",
 579                 DevSize:                SIZE_8MiB,
 580                 CmdSet:                 P_ID_INTEL_STD,
 581                 NumEraseRegions:        2,
 582                 regions: {
 583                         ERASEINFO(0x02000, 8),
 584                         ERASEINFO(0x10000, 127),
 585                 }
 586         }, {
 587                 mfr_id:                 MANUFACTURER_INTEL,
 588                 dev_id:                 I28F640B3T,
 589                 name:                   "Intel 28F640B3T",
 590                 DevSize:                SIZE_8MiB,
 591                 CmdSet:                 P_ID_INTEL_STD,
 592                 NumEraseRegions:        2,
 593                 regions: {
 594                         ERASEINFO(0x10000, 127),
 595                         ERASEINFO(0x02000, 8),
 596                 }
 597         }, {
 598                 mfr_id: MANUFACTURER_INTEL,
 599                 dev_id: I82802AB,
 600                 name: "Intel 82802AB",
 601                 DevSize: SIZE_512KiB,
 602                 CmdSet: P_ID_INTEL_EXT,
 603                 NumEraseRegions: 1,
 604                 regions: {ERASEINFO(0x10000,8),
 605                 }
 606         }, {
 607                 mfr_id: MANUFACTURER_INTEL,
 608                 dev_id: I82802AC,
 609                 name: "Intel 82802AC",
 610                 DevSize: SIZE_1MiB,
 611                 CmdSet: P_ID_INTEL_EXT,
 612                 NumEraseRegions: 1,
 613                 regions: {ERASEINFO(0x10000,16),
 614                 }
 615         }, {
 616                 mfr_id: MANUFACTURER_ST,
 617                 dev_id: M29W800T,
 618                 name: "ST M29W800T",
 619                 DevSize: SIZE_1MiB,
 620                 CmdSet: P_ID_AMD_STD,
 621                 NumEraseRegions: 4,
 622                 regions: {ERASEINFO(0x10000,15),
 623                           ERASEINFO(0x08000,1),
 624                           ERASEINFO(0x02000,2),
 625                           ERASEINFO(0x04000,1)
 626                 }
 627         }, {
 628                 mfr_id: MANUFACTURER_ST,
 629                 dev_id: M29W160DT,
 630                 name: "ST M29W160DT",
 631                 DevSize: SIZE_2MiB,
 632                 CmdSet: P_ID_AMD_STD,
 633                 NumEraseRegions: 4,
 634                 regions: {ERASEINFO(0x10000,31),
 635                           ERASEINFO(0x08000,1),
 636                           ERASEINFO(0x02000,2),
 637                           ERASEINFO(0x04000,1)
 638                 }
 639         }, {
 640                 mfr_id: MANUFACTURER_ST,
 641                 dev_id: M29W160DB,
 642                 name: "ST M29W160DB",
 643                 DevSize: SIZE_2MiB,
 644                 CmdSet: P_ID_AMD_STD,
 645                 NumEraseRegions: 4,
 646                 regions: {ERASEINFO(0x04000,1),
 647                           ERASEINFO(0x02000,2),
 648                           ERASEINFO(0x08000,1),
 649                           ERASEINFO(0x10000,31)
 650                 }
 651         }, {
 652                 mfr_id: MANUFACTURER_ATMEL,
 653                 dev_id: AT49BV512,
 654                 name: "Atmel AT49BV512",
 655                 DevSize: SIZE_64KiB,
 656                 CmdSet: P_ID_AMD_STD,
 657                 NumEraseRegions: 1,
 658                 regions: {ERASEINFO(0x10000,1)
 659                 }
 660         }, {
 661                 mfr_id: MANUFACTURER_ATMEL,
 662                 dev_id: AT29LV512,
 663                 name: "Atmel AT29LV512",
 664                 DevSize: SIZE_64KiB,
 665                 CmdSet: P_ID_AMD_STD,
 666                 NumEraseRegions: 1,
 667                 regions: {
 668                         ERASEINFO(0x80,256),
 669                         ERASEINFO(0x80,256)
 670                 }
 671         }, {
 672                 mfr_id: MANUFACTURER_ATMEL,
 673                 dev_id: AT49BV16X,
 674                 name: "Atmel AT49BV16X",
 675                 DevSize: SIZE_2MiB,
 676                 CmdSet: P_ID_AMD_STD,
 677                 NumEraseRegions: 2,
 678                 regions: {ERASEINFO(0x02000,8),
 679                           ERASEINFO(0x10000,31)
 680                 }
 681         }, {
 682                 mfr_id: MANUFACTURER_ATMEL,
 683                 dev_id: AT49BV16XT,
 684                 name: "Atmel AT49BV16XT",
 685                 DevSize: SIZE_2MiB,
 686                 CmdSet: P_ID_AMD_STD,
 687                 NumEraseRegions: 2,
 688                 regions: {ERASEINFO(0x10000,31),
 689                           ERASEINFO(0x02000,8)
 690                 }
 691         }, {
 692                 mfr_id: MANUFACTURER_ATMEL,
 693                 dev_id: AT49BV32X,
 694                 name: "Atmel AT49BV32X",
 695                 DevSize: SIZE_4MiB,
 696                 CmdSet: P_ID_AMD_STD,
 697                 NumEraseRegions: 2,
 698                 regions: {ERASEINFO(0x02000,8),
 699                           ERASEINFO(0x10000,63)
 700                 }
 701         }, {
 702                 mfr_id: MANUFACTURER_ATMEL,
 703                 dev_id: AT49BV32XT,
 704                 name: "Atmel AT49BV32XT",
 705                 DevSize: SIZE_4MiB,
 706                 CmdSet: P_ID_AMD_STD,
 707                 NumEraseRegions: 2,
 708                 regions: {ERASEINFO(0x10000,63),
 709                           ERASEINFO(0x02000,8)
 710                 }
 711         }, {
 712                 mfr_id: MANUFACTURER_AMD,
 713                 dev_id: AM29F017D,
 714                 name: "AMD AM29F017D",
 715                 DevSize: SIZE_2MiB,
 716                 CmdSet: P_ID_AMD_STD,
 717                 NumEraseRegions: 1,
 718                 regions: {ERASEINFO(0x10000,32),
 719                 }
 720         }, {
 721                 mfr_id: MANUFACTURER_AMD,
 722                 dev_id: AM29F016,
 723                 name: "AMD AM29F016",
 724                 DevSize: SIZE_2MiB,
 725                 CmdSet: P_ID_AMD_STD,
 726                 NumEraseRegions: 1,
 727                 regions: {ERASEINFO(0x10000,32),
 728                 }
 729         }, {
 730                 mfr_id: MANUFACTURER_AMD,
 731                 dev_id: AM29F080,
 732                 name: "AMD AM29F080",
 733                 DevSize: SIZE_1MiB,
 734                 CmdSet: P_ID_AMD_STD,
 735                 NumEraseRegions: 1,
 736                 regions: {ERASEINFO(0x10000,16),
 737                 }
 738         }, {
 739                 mfr_id: MANUFACTURER_AMD,
 740                 dev_id: AM29F040,
 741                 name: "AMD AM29F040",
 742                 DevSize: SIZE_512KiB,
 743                 CmdSet: P_ID_AMD_STD,
 744                 NumEraseRegions: 1,
 745                 regions: {ERASEINFO(0x10000,8),
 746                 }
 747         }, {
 748                 mfr_id: MANUFACTURER_AMD,
 749                 dev_id: AM29LV040B,
 750                 name: "AMD AM29LV040B",
 751                 DevSize: SIZE_512KiB,
 752                 CmdSet: P_ID_AMD_STD,
 753                 NumEraseRegions: 1,
 754                 regions: {ERASEINFO(0x10000,8),
 755                 }
 756         }, {
 757                 mfr_id: MANUFACTURER_ST,
 758                 dev_id: M29W040B,
 759                 name: "ST M29W040B",
 760                 DevSize: SIZE_512KiB,
 761                 CmdSet: P_ID_AMD_STD,
 762                 NumEraseRegions: 1,
 763                 regions: {ERASEINFO(0x10000,8),
 764                 }
 765         }, {
 766                 mfr_id: MANUFACTURER_MACRONIX,
 767                 dev_id: MX29LV160T,
 768                 name: "MXIC MX29LV160T",
 769                 DevSize: SIZE_2MiB,
 770                 CmdSet: P_ID_AMD_STD,
 771                 NumEraseRegions: 4,
 772                 regions: {ERASEINFO(0x10000,31),
 773                           ERASEINFO(0x08000,1),
 774                           ERASEINFO(0x02000,2),
 775                           ERASEINFO(0x04000,1)
 776                 }
 777         }, {
 778                 mfr_id: MANUFACTURER_MACRONIX,
 779                 dev_id: MX29LV160B,
 780                 name: "MXIC MX29LV160B",
 781                 DevSize: SIZE_2MiB,
 782                 CmdSet: P_ID_AMD_STD,
 783                 NumEraseRegions: 4,
 784                 regions: {ERASEINFO(0x04000,1),
 785                           ERASEINFO(0x02000,2),
 786                           ERASEINFO(0x08000,1),
 787                           ERASEINFO(0x10000,31)
 788                 }
 789         }, {
 790                 mfr_id: MANUFACTURER_MACRONIX,
 791                 dev_id: MX29F016,
 792                 name: "Macronix MX29F016",
 793                 DevSize: SIZE_2MiB,
 794                 CmdSet: P_ID_AMD_STD,
 795                 NumEraseRegions: 1,
 796                 regions: {ERASEINFO(0x10000,32),
 797                 }
 798         }, {
 799                 mfr_id: MANUFACTURER_MACRONIX,
 800                 dev_id: MX29F004T,
 801                 name: "Macronix MX29F004T",
 802                 DevSize: SIZE_512KiB,
 803                 CmdSet: P_ID_AMD_STD,
 804                 NumEraseRegions: 4,
 805                 regions: {ERASEINFO(0x10000,7),
 806                           ERASEINFO(0x08000,1),
 807                           ERASEINFO(0x02000,2),
 808                           ERASEINFO(0x04000,1),
 809                 }
 810         }, {
 811                 mfr_id: MANUFACTURER_MACRONIX,
 812                 dev_id: MX29F004B,
 813                 name: "Macronix MX29F004B",
 814                 DevSize: SIZE_512KiB,
 815                 CmdSet: P_ID_AMD_STD,
 816                 NumEraseRegions: 4,
 817                 regions: {ERASEINFO(0x04000,1),
 818                           ERASEINFO(0x02000,2),
 819                           ERASEINFO(0x08000,1),
 820                           ERASEINFO(0x10000,7),
 821                 }
 822         }, {
 823                 mfr_id: MANUFACTURER_SST,
 824                 dev_id: SST39LF512,
 825                 name: "SST 39LF512",
 826                 DevSize: SIZE_64KiB,
 827                 CmdSet: P_ID_AMD_STD,
 828                 NumEraseRegions: 1,
 829                 regions: {ERASEINFO(0x01000,16),
 830                 }
 831         }, {
 832                 mfr_id: MANUFACTURER_SST,
 833                 dev_id: SST39LF010,
 834                 name: "SST 39LF010",
 835                 DevSize: SIZE_128KiB,
 836                 CmdSet: P_ID_AMD_STD,
 837                 NumEraseRegions: 1,
 838                 regions: {ERASEINFO(0x01000,32),
 839                 }
 840         }, {
 841                 mfr_id: MANUFACTURER_SST,
 842                 dev_id: SST39LF020,
 843                 name: "SST 39LF020",
 844                 DevSize: SIZE_256KiB,
 845                 CmdSet: P_ID_AMD_STD,
 846                 NumEraseRegions: 1,
 847                 regions: {ERASEINFO(0x01000,64),
 848                 }
 849         }, {
 850                 mfr_id: MANUFACTURER_SST,
 851                 dev_id: SST39LF040,
 852                 name: "SST 39LF040",
 853                 DevSize: SIZE_512KiB,
 854                 CmdSet: P_ID_AMD_STD,
 855                 NumEraseRegions: 1,
 856                 regions: {ERASEINFO(0x01000,128),
 857                 }
 858         }, {
 859                 mfr_id: MANUFACTURER_SST,
 860                 dev_id: SST39SF010A,
 861                 name: "SST 39SF010A",
 862                 DevSize: SIZE_128KiB,
 863                 CmdSet: P_ID_AMD_STD,
 864                 NumEraseRegions: 1,
 865                 regions: {ERASEINFO(0x01000,32),
 866                 }
 867         }, {
 868                 mfr_id: MANUFACTURER_SST,
 869                 dev_id: SST39SF020A,
 870                 name: "SST 39SF020A",
 871                 DevSize: SIZE_256KiB,
 872                 CmdSet: P_ID_AMD_STD,
 873                 NumEraseRegions: 1,
 874                 regions: {ERASEINFO(0x01000,64),
 875                 }
 876         }, {
 877                 mfr_id: MANUFACTURER_SST,
 878                 dev_id: SST49LF030A,
 879                 name: "SST 49LF030A",
 880                 DevSize: SIZE_512KiB,
 881                 CmdSet: P_ID_AMD_STD,
 882                 NumEraseRegions: 1,
 883                 regions: {ERASEINFO(0x01000,96),
 884                 }
 885         }, {
 886                 mfr_id: MANUFACTURER_SST,
 887                 dev_id: SST49LF040A,
 888                 name: "SST 49LF040A",
 889                 DevSize: SIZE_512KiB,
 890                 CmdSet: P_ID_AMD_STD,
 891                 NumEraseRegions: 1,
 892                 regions: {ERASEINFO(0x01000,128),
 893                 }
 894         }, {
 895                 mfr_id: MANUFACTURER_SST,
 896                 dev_id: SST49LF080A,
 897                 name: "SST 49LF080A",
 898                 DevSize: SIZE_1MiB,
 899                 CmdSet: P_ID_AMD_STD,
 900                 NumEraseRegions: 1,
 901                 regions: {ERASEINFO(0x01000,256),
 902                 }
 903         }
 904 };
 905
 906
 907 static int cfi_jedec_setup(struct cfi_private *p_cfi, int index);
 908
 909 static int jedec_probe_chip(struct map_info *map, __u32 base,
 910                             struct flchip *chips, struct cfi_private *cfi);
 911
 912 struct mtd_info *jedec_probe(struct map_info *map);
 913
 914 static inline u32 jedec_read_mfr(struct map_info *map, __u32 base,
 915         struct cfi_private *cfi)
 916 {
 917         u32 result, mask;
 918         mask = (1 << (cfi->device_type * 8)) -1;
 919         result = cfi_read(map, base);
 920         result &= mask;
 921         return result;
 922 }
 923
 924 static inline u32 jedec_read_id(struct map_info *map, __u32 base,
 925         struct cfi_private *cfi)
 926 {
 927         int osf;
 928         u32 result, mask;
 929         osf = cfi->interleave *cfi->device_type;
 930         mask = (1 << (cfi->device_type * 8)) -1;
 931         result = cfi_read(map, base + osf);
 932         result &= mask;
 933         return result;
 934 }
 935
 936 static inline void jedec_reset(u32 base, struct map_info *map,
 937         struct cfi_private *cfi)
 938 {
 939         /* Reset */
 940         cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);
 941         /* Some misdesigned intel chips do not respond for 0xF0 for a reset,
 942          * so ensure we're in read mode.  Send both the Intel and the AMD command
 943          * for this.  Intel uses 0xff for this, AMD uses 0xff for NOP, so
 944          * this should be safe.
 945          */
 946         cfi_send_gen_cmd(0xFF, 0, base, map, cfi, cfi->device_type, NULL);
 947
 948 }
 949 static int cfi_jedec_setup(struct cfi_private *p_cfi, int index)
 950 {
 951         int i,num_erase_regions;
 952
 953         printk("Found: %s\n",jedec_table[index].name);
 954
 955         num_erase_regions = jedec_table[index].NumEraseRegions;
 956
 957         p_cfi->cfiq = kmalloc(sizeof(struct cfi_ident) + num_erase_regions * 4, GFP_KERNEL);
 958         if (!p_cfi->cfiq) {
 959                 //xx printk(KERN_WARNING "%s: kmalloc failed for CFI ident structure\n", map->name);
 960                 return 0;
 961         }
 962
 963         memset(p_cfi->cfiq,0,sizeof(struct cfi_ident));
 964
 965         p_cfi->cfiq->P_ID = jedec_table[index].CmdSet;
 966         p_cfi->cfiq->NumEraseRegions = jedec_table[index].NumEraseRegions;
 967         p_cfi->cfiq->DevSize = jedec_table[index].DevSize;
 968         p_cfi->cfi_mode = CFI_MODE_JEDEC;
 969
 970         for (i=0; i<num_erase_regions; i++){
 971                 p_cfi->cfiq->EraseRegionInfo[i] = jedec_table[index].regions[i];
 972         }
 973         p_cfi->cmdset_priv = 0;
 974         return 1;       /* ok */
 975 }
 976
 977 static int jedec_probe_chip(struct map_info *map, __u32 base,
 978                               struct flchip *chips, struct cfi_private *cfi)
 979 {
 980         int i;
 981         int unlockpass = 0;
 982
 983         if (!cfi->numchips) {
 984                 switch (cfi->device_type) {
 985                 case CFI_DEVICETYPE_X8:
 986                         cfi->addr_unlock1 = 0x555;
 987                         cfi->addr_unlock2 = 0x2aa;
 988                         break;
 989                 case CFI_DEVICETYPE_X16:
 990                         cfi->addr_unlock1 = 0xaaa;
 991                         if (map->buswidth == cfi->interleave) {
 992                                 /* X16 chip(s) in X8 mode */
 993                                 cfi->addr_unlock2 = 0x555;
 994                         } else {
 995                                 cfi->addr_unlock2 = 0x554;
 996                         }
 997                         break;
 998                 case CFI_DEVICETYPE_X32:
 999                         cfi->addr_unlock1 = 0x1555;
1000                         cfi->addr_unlock2 = 0xaaa;
1001                         break;
1002                 default:
1003                         printk(KERN_NOTICE "Eep. Unknown jedec_probe device type %d\n", cfi->device_type);
1004                 return 0;
1005                 }
1006         }
1007
1008  retry:
1009         /* Make certain we aren't probing past the end of map */
1010         if (base >= map->size) {
1011                 printk(KERN_NOTICE
1012                         "Probe at base(0x%08x) past the end of the map(0x%08lx)\n",
1013                         base, map->size -1);
1014                 return 0;
1015
1016         }
1017         if ((base + cfi->addr_unlock1) >= map->size) {
1018                 printk(KERN_NOTICE
1019                         "Probe at addr_unlock1(0x%08x + 0x%08x) past the end of the map(0x%08lx)\n",
1020                         base, cfi->addr_unlock1, map->size -1);
1021
1022                 return 0;
1023         }
1024         if ((base + cfi->addr_unlock2) >= map->size) {
1025                 printk(KERN_NOTICE
1026                         "Probe at addr_unlock2(0x%08x + 0x%08x) past the end of the map(0x%08lx)\n",
1027                         base, cfi->addr_unlock2, map->size -1);
1028                 return 0;
1029
1030         }
1031
1032         /* Reset */
1033         jedec_reset(base, map, cfi);
1034
1035         /* Autoselect Mode */
1036         if(cfi->addr_unlock1) {
1037                 cfi_send_gen_cmd(0xaa, cfi->addr_unlock1, base, map, cfi, CFI_DEVICETYPE_X8, NULL);
1038                 cfi_send_gen_cmd(0x55, cfi->addr_unlock2, base, map, cfi, CFI_DEVICETYPE_X8, NULL);
1039         }
1040         cfi_send_gen_cmd(0x90, cfi->addr_unlock1, base, map, cfi, CFI_DEVICETYPE_X8, NULL);
1041
1042         if (!cfi->numchips) {
1043                 /* This is the first time we're called. Set up the CFI
1044                    stuff accordingly and return */
1045
1046                 cfi->mfr = jedec_read_mfr(map, base, cfi);
1047                 cfi->id = jedec_read_id(map, base, cfi);
1048                 printk(KERN_INFO "Search for id:(%02x %02x) interleave(%d) type(%d)\n",
1049                         cfi->mfr, cfi->id, cfi->interleave, cfi->device_type);
1050                 for (i=0; i<sizeof(jedec_table)/sizeof(jedec_table[0]); i++) {
1051                         if (cfi->mfr == jedec_table[i].mfr_id &&
1052                             cfi->id == jedec_table[i].dev_id) {
1053                                 if (!cfi_jedec_setup(cfi, i))
1054                                         return 0;
1055                                 goto ok_out;
1056                         }
1057                 }
1058                 switch(unlockpass++) {
1059                 case 0:
1060                         cfi->addr_unlock1 |= cfi->addr_unlock1 << 4;
1061                         cfi->addr_unlock2 |= cfi->addr_unlock2 << 4;
1062                         goto retry;
1063                 case 1:
1064                         cfi->addr_unlock1 = cfi->addr_unlock2 = 0;
1065                         goto retry;
1066                 }
1067                 return 0;
1068         } else {
1069                 __u16 mfr;
1070                 __u16 id;
1071
1072                 /* Make sure it is a chip of the same manufacturer and id */
1073                 mfr = jedec_read_mfr(map, base, cfi);
1074                 id = jedec_read_id(map, base, cfi);
1075
1076                 if ((mfr != cfi->mfr) || (id != cfi->id)) {
1077                         printk(KERN_DEBUG "%s: Found different chip or no chip at all (mfr 0x%x, id 0x%x) at 0x%x\n",
1078                                map->name, mfr, id, base);
1079                         jedec_reset(base, map, cfi);
1080                         return 0;
1081                 }
1082         }
1083
1084         /* Check each previous chip to see if it's an alias */
1085         for (i=0; i<cfi->numchips; i++) {
1086                 /* This chip should be in read mode if it's one
1087                    we've already touched. */
1088                 if (jedec_read_mfr(map, chips[i].start, cfi) == cfi->mfr &&
1089                     jedec_read_id(map, chips[i].start, cfi) == cfi->id) {
1090                         /* Eep. This chip also looks like it's in autoselect mode.
1091                            Is it an alias for the new one? */
1092                         jedec_reset(chips[i].start, map, cfi);
1093
1094                         /* If the device IDs go away, it's an alias */
1095                         if (jedec_read_mfr(map, base, cfi) != cfi->mfr ||
1096                             jedec_read_id(map, base, cfi) != cfi->id) {
1097                                 printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n",
1098                                        map->name, base, chips[i].start);
1099                                 return 0;
1100                         }
1101
1102                         /* Yes, it's actually got the device IDs as data. Most
1103                          * unfortunate. Stick the new chip in read mode
1104                          * too and if it's the same, assume it's an alias. */
1105                         /* FIXME: Use other modes to do a proper check */
1106                         jedec_reset(base, map, cfi);
1107                         if (jedec_read_mfr(map, base, cfi) == cfi->mfr &&
1108                             jedec_read_id(map, base, cfi) == cfi->id) {
1109                                 printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n",
1110                                        map->name, base, chips[i].start);
1111                                 return 0;
1112                         }
1113                 }
1114         }
1115
1116         /* OK, if we got to here, then none of the previous chips appear to
1117            be aliases for the current one. */
1118         if (cfi->numchips == MAX_CFI_CHIPS) {
1119                 printk(KERN_WARNING"%s: Too many flash chips detected. Increase MAX_CFI_CHIPS from %d.\n", map->name, MAX_CFI_CHIPS);
1120                 /* Doesn't matter about resetting it to Read Mode - we're not going to talk to it anyway */
1121                 return -1;
1122         }
1123         chips[cfi->numchips].start = base;
1124         chips[cfi->numchips].state = FL_READY;
1125         cfi->numchips++;
1126
1127 ok_out:
1128         /* Put it back into Read Mode */
1129         jedec_reset(base, map, cfi);
1130
1131         printk(KERN_INFO "%s: Found %d x%d devices at 0x%x in %d-bit mode\n",
1132                map->name, cfi->interleave, cfi->device_type*8, base,
1133                map->buswidth*8);
1134
1135         return 1;
1136 }
1137
1138 static struct chip_probe jedec_chip_probe = {
1139         name: "JEDEC",
1140         probe_chip: jedec_probe_chip
1141 };
1142
1143 struct mtd_info *jedec_probe(struct map_info *map)
1144 {
1145         /*
1146          * Just use the generic probe stuff to call our CFI-specific
1147          * chip_probe routine in all the possible permutations, etc.
1148          */
1149         return mtd_do_chip_probe(map, &jedec_chip_probe);
1150 }
1151
1152 static struct mtd_chip_driver jedec_chipdrv = {
1153         probe: jedec_probe,
1154         name: "jedec_probe",
1155         module: THIS_MODULE
1156 };
1157
1158 int __init jedec_probe_init(void)
1159 {
1160         register_mtd_chip_driver(&jedec_chipdrv);
1161         return 0;
1162 }
1163
1164 static void __exit jedec_probe_exit(void)
1165 {
1166         unregister_mtd_chip_driver(&jedec_chipdrv);
1167 }
1168
1169 module_init(jedec_probe_init);
1170 module_exit(jedec_probe_exit);
1171
1172 MODULE_LICENSE("GPL");
1173 MODULE_AUTHOR("Erwin Authried <eauth@softsys.co.at> et al.");
1174 MODULE_DESCRIPTION("Probe code for JEDEC-compliant flash chips");