linux-old/drivers/mtd/chips/jedec_probe.c
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   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
 126struct 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
 148static 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
 907static int cfi_jedec_setup(struct cfi_private *p_cfi, int index);
 908
 909static int jedec_probe_chip(struct map_info *map, __u32 base,
 910                            struct flchip *chips, struct cfi_private *cfi);
 911
 912struct mtd_info *jedec_probe(struct map_info *map);
 913
 914static 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
 924static 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
 936static 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}
 949static 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
 977static 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                
1127ok_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
1138static struct chip_probe jedec_chip_probe = {
1139        name: "JEDEC",
1140        probe_chip: jedec_probe_chip
1141};
1142
1143struct 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
1152static struct mtd_chip_driver jedec_chipdrv = {
1153        probe: jedec_probe,
1154        name: "jedec_probe",
1155        module: THIS_MODULE
1156};
1157
1158int __init jedec_probe_init(void)
1159{
1160        register_mtd_chip_driver(&jedec_chipdrv);
1161        return 0;
1162}
1163
1164static void __exit jedec_probe_exit(void)
1165{
1166        unregister_mtd_chip_driver(&jedec_chipdrv);
1167}
1168
1169module_init(jedec_probe_init);
1170module_exit(jedec_probe_exit);
1171
1172MODULE_LICENSE("GPL");
1173MODULE_AUTHOR("Erwin Authried <eauth@softsys.co.at> et al.");
1174MODULE_DESCRIPTION("Probe code for JEDEC-compliant flash chips");
1175