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   1 /*
   2    Common Flash Interface probe code.
   3    (C) 2000 Red Hat. GPL'd.
   4    $Id: jedec_probe.c,v 1.66 2005/11/07 11:14:23 gleixner Exp $
   5    See JEDEC (http://www.jedec.org/) standard JESD21C (section 3.5)
   6    for the standard this probe goes back to.
   7
   8    Occasionally maintained by Thayne Harbaugh tharbaugh at lnxi dot com
   9 */
  10
  11 #include <linux/module.h>
  12 #include <linux/init.h>
  13 #include <linux/types.h>
  14 #include <linux/kernel.h>
  15 #include <asm/io.h>
  16 #include <asm/byteorder.h>
  17 #include <linux/errno.h>
  18 #include <linux/slab.h>
  19 #include <linux/interrupt.h>
  20
  21 #include <linux/mtd/mtd.h>
  22 #include <linux/mtd/map.h>
  23 #include <linux/mtd/cfi.h>
  24 #include <linux/mtd/gen_probe.h>
  25
  26 /* Manufacturers */
  27 #define MANUFACTURER_AMD        0x0001
  28 #define MANUFACTURER_ATMEL      0x001f
  29 #define MANUFACTURER_FUJITSU    0x0004
  30 #define MANUFACTURER_HYUNDAI    0x00AD
  31 #define MANUFACTURER_INTEL      0x0089
  32 #define MANUFACTURER_MACRONIX   0x00C2
  33 #define MANUFACTURER_NEC        0x0010
  34 #define MANUFACTURER_PMC        0x009D
  35 #define MANUFACTURER_SHARP      0x00b0
  36 #define MANUFACTURER_SST        0x00BF
  37 #define MANUFACTURER_ST         0x0020
  38 #define MANUFACTURER_TOSHIBA    0x0098
  39 #define MANUFACTURER_WINBOND    0x00da
  40 #define CONTINUATION_CODE       0x007f
  41
  42
  43 /* AMD */
  44 #define AM29DL800BB     0x22C8
  45 #define AM29DL800BT     0x224A
  46
  47 #define AM29F800BB      0x2258
  48 #define AM29F800BT      0x22D6
  49 #define AM29LV400BB     0x22BA
  50 #define AM29LV400BT     0x22B9
  51 #define AM29LV800BB     0x225B
  52 #define AM29LV800BT     0x22DA
  53 #define AM29LV160DT     0x22C4
  54 #define AM29LV160DB     0x2249
  55 #define AM29F017D       0x003D
  56 #define AM29F016D       0x00AD
  57 #define AM29F080        0x00D5
  58 #define AM29F040        0x00A4
  59 #define AM29LV040B      0x004F
  60 #define AM29F032B       0x0041
  61 #define AM29F002T       0x00B0
  62 #define AM29SL800DB     0x226B
  63 #define AM29SL800DT     0x22EA
  64
  65 /* Atmel */
  66 #define AT49BV512       0x0003
  67 #define AT29LV512       0x003d
  68 #define AT49BV16X       0x00C0
  69 #define AT49BV16XT      0x00C2
  70 #define AT49BV32X       0x00C8
  71 #define AT49BV32XT      0x00C9
  72
  73 /* Fujitsu */
  74 #define MBM29F040C      0x00A4
  75 #define MBM29F800BA     0x2258
  76 #define MBM29LV650UE    0x22D7
  77 #define MBM29LV320TE    0x22F6
  78 #define MBM29LV320BE    0x22F9
  79 #define MBM29LV160TE    0x22C4
  80 #define MBM29LV160BE    0x2249
  81 #define MBM29LV800BA    0x225B
  82 #define MBM29LV800TA    0x22DA
  83 #define MBM29LV400TC    0x22B9
  84 #define MBM29LV400BC    0x22BA
  85
  86 /* Hyundai */
  87 #define HY29F002T       0x00B0
  88
  89 /* Intel */
  90 #define I28F004B3T      0x00d4
  91 #define I28F004B3B      0x00d5
  92 #define I28F400B3T      0x8894
  93 #define I28F400B3B      0x8895
  94 #define I28F008S5       0x00a6
  95 #define I28F016S5       0x00a0
  96 #define I28F008SA       0x00a2
  97 #define I28F008B3T      0x00d2
  98 #define I28F008B3B      0x00d3
  99 #define I28F800B3T      0x8892
 100 #define I28F800B3B      0x8893
 101 #define I28F016S3       0x00aa
 102 #define I28F016B3T      0x00d0
 103 #define I28F016B3B      0x00d1
 104 #define I28F160B3T      0x8890
 105 #define I28F160B3B      0x8891
 106 #define I28F320B3T      0x8896
 107 #define I28F320B3B      0x8897
 108 #define I28F640B3T      0x8898
 109 #define I28F640B3B      0x8899
 110 #define I82802AB        0x00ad
 111 #define I82802AC        0x00ac
 112
 113 /* Macronix */
 114 #define MX29LV040C      0x004F
 115 #define MX29LV160T      0x22C4
 116 #define MX29LV160B      0x2249
 117 #define MX29F040        0x00A4
 118 #define MX29F016        0x00AD
 119 #define MX29F002T       0x00B0
 120 #define MX29F004T       0x0045
 121 #define MX29F004B       0x0046
 122
 123 /* NEC */
 124 #define UPD29F064115    0x221C
 125
 126 /* PMC */
 127 #define PM49FL002       0x006D
 128 #define PM49FL004       0x006E
 129 #define PM49FL008       0x006A
 130
 131 /* Sharp */
 132 #define LH28F640BF      0x00b0
 133
 134 /* ST - www.st.com */
 135 #define M29F800AB       0x0058
 136 #define M29W800DT       0x00D7
 137 #define M29W800DB       0x005B
 138 #define M29W400DT       0x00EE
 139 #define M29W400DB       0x00EF
 140 #define M29W160DT       0x22C4
 141 #define M29W160DB       0x2249
 142 #define M29W040B        0x00E3
 143 #define M50FW040        0x002C
 144 #define M50FW080        0x002D
 145 #define M50FW016        0x002E
 146 #define M50LPW080       0x002F
 147 #define M50FLW080A      0x0080
 148 #define M50FLW080B      0x0081
 149
 150 /* SST */
 151 #define SST29EE020      0x0010
 152 #define SST29LE020      0x0012
 153 #define SST29EE512      0x005d
 154 #define SST29LE512      0x003d
 155 #define SST39LF800      0x2781
 156 #define SST39LF160      0x2782
 157 #define SST39VF1601     0x234b
 158 #define SST39LF512      0x00D4
 159 #define SST39LF010      0x00D5
 160 #define SST39LF020      0x00D6
 161 #define SST39LF040      0x00D7
 162 #define SST39SF010A     0x00B5
 163 #define SST39SF020A     0x00B6
 164 #define SST49LF004B     0x0060
 165 #define SST49LF040B     0x0050
 166 #define SST49LF008A     0x005a
 167 #define SST49LF030A     0x001C
 168 #define SST49LF040A     0x0051
 169 #define SST49LF080A     0x005B
 170 #define SST36VF3203     0x7354
 171
 172 /* Toshiba */
 173 #define TC58FVT160      0x00C2
 174 #define TC58FVB160      0x0043
 175 #define TC58FVT321      0x009A
 176 #define TC58FVB321      0x009C
 177 #define TC58FVT641      0x0093
 178 #define TC58FVB641      0x0095
 179
 180 /* Winbond */
 181 #define W49V002A        0x00b0
 182
 183
 184 /*
 185  * Unlock address sets for AMD command sets.
 186  * Intel command sets use the MTD_UADDR_UNNECESSARY.
 187  * Each identifier, except MTD_UADDR_UNNECESSARY, and
 188  * MTD_UADDR_NO_SUPPORT must be defined below in unlock_addrs[].
 189  * MTD_UADDR_NOT_SUPPORTED must be 0 so that structure
 190  * initialization need not require initializing all of the
 191  * unlock addresses for all bit widths.
 192  */
 193 enum uaddr {
 194         MTD_UADDR_NOT_SUPPORTED = 0,    /* data width not supported */
 195         MTD_UADDR_0x0555_0x02AA,
 196         MTD_UADDR_0x0555_0x0AAA,
 197         MTD_UADDR_0x5555_0x2AAA,
 198         MTD_UADDR_0x0AAA_0x0555,
 199         MTD_UADDR_DONT_CARE,            /* Requires an arbitrary address */
 200         MTD_UADDR_UNNECESSARY,          /* Does not require any address */
 201 };
 202
 203
 204 struct unlock_addr {
 205         uint32_t addr1;
 206         uint32_t addr2;
 207 };
 208
 209
 210 /*
 211  * I don't like the fact that the first entry in unlock_addrs[]
 212  * exists, but is for MTD_UADDR_NOT_SUPPORTED - and, therefore,
 213  * should not be used.  The  problem is that structures with
 214  * initializers have extra fields initialized to 0.  It is _very_
 215  * desireable to have the unlock address entries for unsupported
 216  * data widths automatically initialized - that means that
 217  * MTD_UADDR_NOT_SUPPORTED must be 0 and the first entry here
 218  * must go unused.
 219  */
 220 static const struct unlock_addr  unlock_addrs[] = {
 221         [MTD_UADDR_NOT_SUPPORTED] = {
 222                 .addr1 = 0xffff,
 223                 .addr2 = 0xffff
 224         },
 225
 226         [MTD_UADDR_0x0555_0x02AA] = {
 227                 .addr1 = 0x0555,
 228                 .addr2 = 0x02aa
 229         },
 230
 231         [MTD_UADDR_0x0555_0x0AAA] = {
 232                 .addr1 = 0x0555,
 233                 .addr2 = 0x0aaa
 234         },
 235
 236         [MTD_UADDR_0x5555_0x2AAA] = {
 237                 .addr1 = 0x5555,
 238                 .addr2 = 0x2aaa
 239         },
 240
 241         [MTD_UADDR_0x0AAA_0x0555] = {
 242                 .addr1 = 0x0AAA,
 243                 .addr2 = 0x0555
 244         },
 245
 246         [MTD_UADDR_DONT_CARE] = {
 247                 .addr1 = 0x0000,      /* Doesn't matter which address */
 248                 .addr2 = 0x0000       /* is used - must be last entry */
 249         },
 250
 251         [MTD_UADDR_UNNECESSARY] = {
 252                 .addr1 = 0x0000,
 253                 .addr2 = 0x0000
 254         }
 255 };
 256
 257 struct amd_flash_info {
 258         const char *name;
 259         const uint16_t mfr_id;
 260         const uint16_t dev_id;
 261         const uint8_t dev_size;
 262         const uint8_t nr_regions;
 263         const uint16_t cmd_set;
 264         const uint32_t regions[6];
 265         const uint8_t devtypes;         /* Bitmask for x8, x16 etc. */
 266         const uint8_t uaddr;            /* unlock addrs for 8, 16, 32, 64 */
 267 };
 268
 269 #define ERASEINFO(size,blocks) (size<<8)|(blocks-1)
 270
 271 #define SIZE_64KiB  16
 272 #define SIZE_128KiB 17
 273 #define SIZE_256KiB 18
 274 #define SIZE_512KiB 19
 275 #define SIZE_1MiB   20
 276 #define SIZE_2MiB   21
 277 #define SIZE_4MiB   22
 278 #define SIZE_8MiB   23
 279
 280
 281 /*
 282  * Please keep this list ordered by manufacturer!
 283  * Fortunately, the list isn't searched often and so a
 284  * slow, linear search isn't so bad.
 285  */
 286 static const struct amd_flash_info jedec_table[] = {
 287         {
 288                 .mfr_id         = MANUFACTURER_AMD,
 289                 .dev_id         = AM29F032B,
 290                 .name           = "AMD AM29F032B",
 291                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
 292                 .devtypes       = CFI_DEVICETYPE_X8,
 293                 .dev_size       = SIZE_4MiB,
 294                 .cmd_set        = P_ID_AMD_STD,
 295                 .nr_regions     = 1,
 296                 .regions        = {
 297                         ERASEINFO(0x10000,64)
 298                 }
 299         }, {
 300                 .mfr_id         = MANUFACTURER_AMD,
 301                 .dev_id         = AM29LV160DT,
 302                 .name           = "AMD AM29LV160DT",
 303                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 304                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 305                 .dev_size       = SIZE_2MiB,
 306                 .cmd_set        = P_ID_AMD_STD,
 307                 .nr_regions     = 4,
 308                 .regions        = {
 309                         ERASEINFO(0x10000,31),
 310                         ERASEINFO(0x08000,1),
 311                         ERASEINFO(0x02000,2),
 312                         ERASEINFO(0x04000,1)
 313                 }
 314         }, {
 315                 .mfr_id         = MANUFACTURER_AMD,
 316                 .dev_id         = AM29LV160DB,
 317                 .name           = "AMD AM29LV160DB",
 318                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 319                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 320                 .dev_size       = SIZE_2MiB,
 321                 .cmd_set        = P_ID_AMD_STD,
 322                 .nr_regions     = 4,
 323                 .regions        = {
 324                         ERASEINFO(0x04000,1),
 325                         ERASEINFO(0x02000,2),
 326                         ERASEINFO(0x08000,1),
 327                         ERASEINFO(0x10000,31)
 328                 }
 329         }, {
 330                 .mfr_id         = MANUFACTURER_AMD,
 331                 .dev_id         = AM29LV400BB,
 332                 .name           = "AMD AM29LV400BB",
 333                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 334                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 335                 .dev_size       = SIZE_512KiB,
 336                 .cmd_set        = P_ID_AMD_STD,
 337                 .nr_regions     = 4,
 338                 .regions        = {
 339                         ERASEINFO(0x04000,1),
 340                         ERASEINFO(0x02000,2),
 341                         ERASEINFO(0x08000,1),
 342                         ERASEINFO(0x10000,7)
 343                 }
 344         }, {
 345                 .mfr_id         = MANUFACTURER_AMD,
 346                 .dev_id         = AM29LV400BT,
 347                 .name           = "AMD AM29LV400BT",
 348                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 349                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 350                 .dev_size       = SIZE_512KiB,
 351                 .cmd_set        = P_ID_AMD_STD,
 352                 .nr_regions     = 4,
 353                 .regions        = {
 354                         ERASEINFO(0x10000,7),
 355                         ERASEINFO(0x08000,1),
 356                         ERASEINFO(0x02000,2),
 357                         ERASEINFO(0x04000,1)
 358                 }
 359         }, {
 360                 .mfr_id         = MANUFACTURER_AMD,
 361                 .dev_id         = AM29LV800BB,
 362                 .name           = "AMD AM29LV800BB",
 363                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 364                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 365                 .dev_size       = SIZE_1MiB,
 366                 .cmd_set        = P_ID_AMD_STD,
 367                 .nr_regions     = 4,
 368                 .regions        = {
 369                         ERASEINFO(0x04000,1),
 370                         ERASEINFO(0x02000,2),
 371                         ERASEINFO(0x08000,1),
 372                         ERASEINFO(0x10000,15),
 373                 }
 374         }, {
 375 /* add DL */
 376                 .mfr_id         = MANUFACTURER_AMD,
 377                 .dev_id         = AM29DL800BB,
 378                 .name           = "AMD AM29DL800BB",
 379                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 380                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 381                 .dev_size       = SIZE_1MiB,
 382                 .cmd_set        = P_ID_AMD_STD,
 383                 .nr_regions     = 6,
 384                 .regions        = {
 385                         ERASEINFO(0x04000,1),
 386                         ERASEINFO(0x08000,1),
 387                         ERASEINFO(0x02000,4),
 388                         ERASEINFO(0x08000,1),
 389                         ERASEINFO(0x04000,1),
 390                         ERASEINFO(0x10000,14)
 391                 }
 392         }, {
 393                 .mfr_id         = MANUFACTURER_AMD,
 394                 .dev_id         = AM29DL800BT,
 395                 .name           = "AMD AM29DL800BT",
 396                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 397                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 398                 .dev_size       = SIZE_1MiB,
 399                 .cmd_set        = P_ID_AMD_STD,
 400                 .nr_regions     = 6,
 401                 .regions        = {
 402                         ERASEINFO(0x10000,14),
 403                         ERASEINFO(0x04000,1),
 404                         ERASEINFO(0x08000,1),
 405                         ERASEINFO(0x02000,4),
 406                         ERASEINFO(0x08000,1),
 407                         ERASEINFO(0x04000,1)
 408                 }
 409         }, {
 410                 .mfr_id         = MANUFACTURER_AMD,
 411                 .dev_id         = AM29F800BB,
 412                 .name           = "AMD AM29F800BB",
 413                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 414                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 415                 .dev_size       = SIZE_1MiB,
 416                 .cmd_set        = P_ID_AMD_STD,
 417                 .nr_regions     = 4,
 418                 .regions        = {
 419                         ERASEINFO(0x04000,1),
 420                         ERASEINFO(0x02000,2),
 421                         ERASEINFO(0x08000,1),
 422                         ERASEINFO(0x10000,15),
 423                 }
 424         }, {
 425                 .mfr_id         = MANUFACTURER_AMD,
 426                 .dev_id         = AM29LV800BT,
 427                 .name           = "AMD AM29LV800BT",
 428                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 429                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 430                 .dev_size       = SIZE_1MiB,
 431                 .cmd_set        = P_ID_AMD_STD,
 432                 .nr_regions     = 4,
 433                 .regions        = {
 434                         ERASEINFO(0x10000,15),
 435                         ERASEINFO(0x08000,1),
 436                         ERASEINFO(0x02000,2),
 437                         ERASEINFO(0x04000,1)
 438                 }
 439         }, {
 440                 .mfr_id         = MANUFACTURER_AMD,
 441                 .dev_id         = AM29F800BT,
 442                 .name           = "AMD AM29F800BT",
 443                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 444                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 445                 .dev_size       = SIZE_1MiB,
 446                 .cmd_set        = P_ID_AMD_STD,
 447                 .nr_regions     = 4,
 448                 .regions        = {
 449                         ERASEINFO(0x10000,15),
 450                         ERASEINFO(0x08000,1),
 451                         ERASEINFO(0x02000,2),
 452                         ERASEINFO(0x04000,1)
 453                 }
 454         }, {
 455                 .mfr_id         = MANUFACTURER_AMD,
 456                 .dev_id         = AM29F017D,
 457                 .name           = "AMD AM29F017D",
 458                 .devtypes       = CFI_DEVICETYPE_X8,
 459                 .uaddr          = MTD_UADDR_DONT_CARE,
 460                 .dev_size       = SIZE_2MiB,
 461                 .cmd_set        = P_ID_AMD_STD,
 462                 .nr_regions     = 1,
 463                 .regions        = {
 464                         ERASEINFO(0x10000,32),
 465                 }
 466         }, {
 467                 .mfr_id         = MANUFACTURER_AMD,
 468                 .dev_id         = AM29F016D,
 469                 .name           = "AMD AM29F016D",
 470                 .devtypes       = CFI_DEVICETYPE_X8,
 471                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
 472                 .dev_size       = SIZE_2MiB,
 473                 .cmd_set        = P_ID_AMD_STD,
 474                 .nr_regions     = 1,
 475                 .regions        = {
 476                         ERASEINFO(0x10000,32),
 477                 }
 478         }, {
 479                 .mfr_id         = MANUFACTURER_AMD,
 480                 .dev_id         = AM29F080,
 481                 .name           = "AMD AM29F080",
 482                 .devtypes       = CFI_DEVICETYPE_X8,
 483                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
 484                 .dev_size       = SIZE_1MiB,
 485                 .cmd_set        = P_ID_AMD_STD,
 486                 .nr_regions     = 1,
 487                 .regions        = {
 488                         ERASEINFO(0x10000,16),
 489                 }
 490         }, {
 491                 .mfr_id         = MANUFACTURER_AMD,
 492                 .dev_id         = AM29F040,
 493                 .name           = "AMD AM29F040",
 494                 .devtypes       = CFI_DEVICETYPE_X8,
 495                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
 496                 .dev_size       = SIZE_512KiB,
 497                 .cmd_set        = P_ID_AMD_STD,
 498                 .nr_regions     = 1,
 499                 .regions        = {
 500                         ERASEINFO(0x10000,8),
 501                 }
 502         }, {
 503                 .mfr_id         = MANUFACTURER_AMD,
 504                 .dev_id         = AM29LV040B,
 505                 .name           = "AMD AM29LV040B",
 506                 .devtypes       = CFI_DEVICETYPE_X8,
 507                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
 508                 .dev_size       = SIZE_512KiB,
 509                 .cmd_set        = P_ID_AMD_STD,
 510                 .nr_regions     = 1,
 511                 .regions        = {
 512                         ERASEINFO(0x10000,8),
 513                 }
 514         }, {
 515                 .mfr_id         = MANUFACTURER_AMD,
 516                 .dev_id         = AM29F002T,
 517                 .name           = "AMD AM29F002T",
 518                 .devtypes       = CFI_DEVICETYPE_X8,
 519                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
 520                 .dev_size       = SIZE_256KiB,
 521                 .cmd_set        = P_ID_AMD_STD,
 522                 .nr_regions     = 4,
 523                 .regions        = {
 524                         ERASEINFO(0x10000,3),
 525                         ERASEINFO(0x08000,1),
 526                         ERASEINFO(0x02000,2),
 527                         ERASEINFO(0x04000,1),
 528                 }
 529         }, {
 530                 .mfr_id         = MANUFACTURER_AMD,
 531                 .dev_id         = AM29SL800DT,
 532                 .name           = "AMD AM29SL800DT",
 533                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 534                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 535                 .dev_size       = SIZE_1MiB,
 536                 .cmd_set        = P_ID_AMD_STD,
 537                 .nr_regions     = 4,
 538                 .regions        = {
 539                         ERASEINFO(0x10000,15),
 540                         ERASEINFO(0x08000,1),
 541                         ERASEINFO(0x02000,2),
 542                         ERASEINFO(0x04000,1),
 543                 }
 544         }, {
 545                 .mfr_id         = MANUFACTURER_AMD,
 546                 .dev_id         = AM29SL800DB,
 547                 .name           = "AMD AM29SL800DB",
 548                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 549                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 550                 .dev_size       = SIZE_1MiB,
 551                 .cmd_set        = P_ID_AMD_STD,
 552                 .nr_regions     = 4,
 553                 .regions        = {
 554                         ERASEINFO(0x04000,1),
 555                         ERASEINFO(0x02000,2),
 556                         ERASEINFO(0x08000,1),
 557                         ERASEINFO(0x10000,15),
 558                 }
 559         }, {
 560                 .mfr_id         = MANUFACTURER_ATMEL,
 561                 .dev_id         = AT49BV512,
 562                 .name           = "Atmel AT49BV512",
 563                 .devtypes       = CFI_DEVICETYPE_X8,
 564                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
 565                 .dev_size       = SIZE_64KiB,
 566                 .cmd_set        = P_ID_AMD_STD,
 567                 .nr_regions     = 1,
 568                 .regions        = {
 569                         ERASEINFO(0x10000,1)
 570                 }
 571         }, {
 572                 .mfr_id         = MANUFACTURER_ATMEL,
 573                 .dev_id         = AT29LV512,
 574                 .name           = "Atmel AT29LV512",
 575                 .devtypes       = CFI_DEVICETYPE_X8,
 576                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
 577                 .dev_size       = SIZE_64KiB,
 578                 .cmd_set        = P_ID_AMD_STD,
 579                 .nr_regions     = 1,
 580                 .regions        = {
 581                         ERASEINFO(0x80,256),
 582                         ERASEINFO(0x80,256)
 583                 }
 584         }, {
 585                 .mfr_id         = MANUFACTURER_ATMEL,
 586                 .dev_id         = AT49BV16X,
 587                 .name           = "Atmel AT49BV16X",
 588                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 589                 .uaddr          = MTD_UADDR_0x0555_0x0AAA,      /* ???? */
 590                 .dev_size       = SIZE_2MiB,
 591                 .cmd_set        = P_ID_AMD_STD,
 592                 .nr_regions     = 2,
 593                 .regions        = {
 594                         ERASEINFO(0x02000,8),
 595                         ERASEINFO(0x10000,31)
 596                 }
 597         }, {
 598                 .mfr_id         = MANUFACTURER_ATMEL,
 599                 .dev_id         = AT49BV16XT,
 600                 .name           = "Atmel AT49BV16XT",
 601                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 602                 .uaddr          = MTD_UADDR_0x0555_0x0AAA,      /* ???? */
 603                 .dev_size       = SIZE_2MiB,
 604                 .cmd_set        = P_ID_AMD_STD,
 605                 .nr_regions     = 2,
 606                 .regions        = {
 607                         ERASEINFO(0x10000,31),
 608                         ERASEINFO(0x02000,8)
 609                 }
 610         }, {
 611                 .mfr_id         = MANUFACTURER_ATMEL,
 612                 .dev_id         = AT49BV32X,
 613                 .name           = "Atmel AT49BV32X",
 614                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 615                 .uaddr          = MTD_UADDR_0x0555_0x0AAA,      /* ???? */
 616                 .dev_size       = SIZE_4MiB,
 617                 .cmd_set        = P_ID_AMD_STD,
 618                 .nr_regions     = 2,
 619                 .regions        = {
 620                         ERASEINFO(0x02000,8),
 621                         ERASEINFO(0x10000,63)
 622                 }
 623         }, {
 624                 .mfr_id         = MANUFACTURER_ATMEL,
 625                 .dev_id         = AT49BV32XT,
 626                 .name           = "Atmel AT49BV32XT",
 627                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 628                 .uaddr          = MTD_UADDR_0x0555_0x0AAA,      /* ???? */
 629                 .dev_size       = SIZE_4MiB,
 630                 .cmd_set        = P_ID_AMD_STD,
 631                 .nr_regions     = 2,
 632                 .regions        = {
 633                         ERASEINFO(0x10000,63),
 634                         ERASEINFO(0x02000,8)
 635                 }
 636         }, {
 637                 .mfr_id         = MANUFACTURER_FUJITSU,
 638                 .dev_id         = MBM29F040C,
 639                 .name           = "Fujitsu MBM29F040C",
 640                 .devtypes       = CFI_DEVICETYPE_X8,
 641                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 642                 .dev_size       = SIZE_512KiB,
 643                 .cmd_set        = P_ID_AMD_STD,
 644                 .nr_regions     = 1,
 645                 .regions        = {
 646                         ERASEINFO(0x10000,8)
 647                 }
 648         }, {
 649                 .mfr_id         = MANUFACTURER_FUJITSU,
 650                 .dev_id         = MBM29F800BA,
 651                 .name           = "Fujitsu MBM29F800BA",
 652                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 653                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 654                 .dev_size       = SIZE_1MiB,
 655                 .cmd_set        = P_ID_AMD_STD,
 656                 .nr_regions     = 4,
 657                 .regions        = {
 658                         ERASEINFO(0x04000,1),
 659                         ERASEINFO(0x02000,2),
 660                         ERASEINFO(0x08000,1),
 661                         ERASEINFO(0x10000,15),
 662                 }
 663         }, {
 664                 .mfr_id         = MANUFACTURER_FUJITSU,
 665                 .dev_id         = MBM29LV650UE,
 666                 .name           = "Fujitsu MBM29LV650UE",
 667                 .devtypes       = CFI_DEVICETYPE_X8,
 668                 .uaddr          = MTD_UADDR_DONT_CARE,
 669                 .dev_size       = SIZE_8MiB,
 670                 .cmd_set        = P_ID_AMD_STD,
 671                 .nr_regions     = 1,
 672                 .regions        = {
 673                         ERASEINFO(0x10000,128)
 674                 }
 675         }, {
 676                 .mfr_id         = MANUFACTURER_FUJITSU,
 677                 .dev_id         = MBM29LV320TE,
 678                 .name           = "Fujitsu MBM29LV320TE",
 679                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 680                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 681                 .dev_size       = SIZE_4MiB,
 682                 .cmd_set        = P_ID_AMD_STD,
 683                 .nr_regions     = 2,
 684                 .regions        = {
 685                         ERASEINFO(0x10000,63),
 686                         ERASEINFO(0x02000,8)
 687                 }
 688         }, {
 689                 .mfr_id         = MANUFACTURER_FUJITSU,
 690                 .dev_id         = MBM29LV320BE,
 691                 .name           = "Fujitsu MBM29LV320BE",
 692                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 693                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 694                 .dev_size       = SIZE_4MiB,
 695                 .cmd_set        = P_ID_AMD_STD,
 696                 .nr_regions     = 2,
 697                 .regions        = {
 698                         ERASEINFO(0x02000,8),
 699                         ERASEINFO(0x10000,63)
 700                 }
 701         }, {
 702                 .mfr_id         = MANUFACTURER_FUJITSU,
 703                 .dev_id         = MBM29LV160TE,
 704                 .name           = "Fujitsu MBM29LV160TE",
 705                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 706                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 707                 .dev_size       = SIZE_2MiB,
 708                 .cmd_set        = P_ID_AMD_STD,
 709                 .nr_regions     = 4,
 710                 .regions        = {
 711                         ERASEINFO(0x10000,31),
 712                         ERASEINFO(0x08000,1),
 713                         ERASEINFO(0x02000,2),
 714                         ERASEINFO(0x04000,1)
 715                 }
 716         }, {
 717                 .mfr_id         = MANUFACTURER_FUJITSU,
 718                 .dev_id         = MBM29LV160BE,
 719                 .name           = "Fujitsu MBM29LV160BE",
 720                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 721                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 722                 .dev_size       = SIZE_2MiB,
 723                 .cmd_set        = P_ID_AMD_STD,
 724                 .nr_regions     = 4,
 725                 .regions        = {
 726                         ERASEINFO(0x04000,1),
 727                         ERASEINFO(0x02000,2),
 728                         ERASEINFO(0x08000,1),
 729                         ERASEINFO(0x10000,31)
 730                 }
 731         }, {
 732                 .mfr_id         = MANUFACTURER_FUJITSU,
 733                 .dev_id         = MBM29LV800BA,
 734                 .name           = "Fujitsu MBM29LV800BA",
 735                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 736                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 737                 .dev_size       = SIZE_1MiB,
 738                 .cmd_set        = P_ID_AMD_STD,
 739                 .nr_regions     = 4,
 740                 .regions        = {
 741                         ERASEINFO(0x04000,1),
 742                         ERASEINFO(0x02000,2),
 743                         ERASEINFO(0x08000,1),
 744                         ERASEINFO(0x10000,15)
 745                 }
 746         }, {
 747                 .mfr_id         = MANUFACTURER_FUJITSU,
 748                 .dev_id         = MBM29LV800TA,
 749                 .name           = "Fujitsu MBM29LV800TA",
 750                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 751                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 752                 .dev_size       = SIZE_1MiB,
 753                 .cmd_set        = P_ID_AMD_STD,
 754                 .nr_regions     = 4,
 755                 .regions        = {
 756                         ERASEINFO(0x10000,15),
 757                         ERASEINFO(0x08000,1),
 758                         ERASEINFO(0x02000,2),
 759                         ERASEINFO(0x04000,1)
 760                 }
 761         }, {
 762                 .mfr_id         = MANUFACTURER_FUJITSU,
 763                 .dev_id         = MBM29LV400BC,
 764                 .name           = "Fujitsu MBM29LV400BC",
 765                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 766                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 767                 .dev_size       = SIZE_512KiB,
 768                 .cmd_set        = P_ID_AMD_STD,
 769                 .nr_regions     = 4,
 770                 .regions        = {
 771                         ERASEINFO(0x04000,1),
 772                         ERASEINFO(0x02000,2),
 773                         ERASEINFO(0x08000,1),
 774                         ERASEINFO(0x10000,7)
 775                 }
 776         }, {
 777                 .mfr_id         = MANUFACTURER_FUJITSU,
 778                 .dev_id         = MBM29LV400TC,
 779                 .name           = "Fujitsu MBM29LV400TC",
 780                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 781                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
 782                 .dev_size       = SIZE_512KiB,
 783                 .cmd_set        = P_ID_AMD_STD,
 784                 .nr_regions     = 4,
 785                 .regions        = {
 786                         ERASEINFO(0x10000,7),
 787                         ERASEINFO(0x08000,1),
 788                         ERASEINFO(0x02000,2),
 789                         ERASEINFO(0x04000,1)
 790                 }
 791         }, {
 792                 .mfr_id         = MANUFACTURER_HYUNDAI,
 793                 .dev_id         = HY29F002T,
 794                 .name           = "Hyundai HY29F002T",
 795                 .devtypes       = CFI_DEVICETYPE_X8,
 796                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
 797                 .dev_size       = SIZE_256KiB,
 798                 .cmd_set        = P_ID_AMD_STD,
 799                 .nr_regions     = 4,
 800                 .regions        = {
 801                         ERASEINFO(0x10000,3),
 802                         ERASEINFO(0x08000,1),
 803                         ERASEINFO(0x02000,2),
 804                         ERASEINFO(0x04000,1),
 805                 }
 806         }, {
 807                 .mfr_id         = MANUFACTURER_INTEL,
 808                 .dev_id         = I28F004B3B,
 809                 .name           = "Intel 28F004B3B",
 810                 .devtypes       = CFI_DEVICETYPE_X8,
 811                 .uaddr          = MTD_UADDR_UNNECESSARY,
 812                 .dev_size       = SIZE_512KiB,
 813                 .cmd_set        = P_ID_INTEL_STD,
 814                 .nr_regions     = 2,
 815                 .regions        = {
 816                         ERASEINFO(0x02000, 8),
 817                         ERASEINFO(0x10000, 7),
 818                 }
 819         }, {
 820                 .mfr_id         = MANUFACTURER_INTEL,
 821                 .dev_id         = I28F004B3T,
 822                 .name           = "Intel 28F004B3T",
 823                 .devtypes       = CFI_DEVICETYPE_X8,
 824                 .uaddr          = MTD_UADDR_UNNECESSARY,
 825                 .dev_size       = SIZE_512KiB,
 826                 .cmd_set        = P_ID_INTEL_STD,
 827                 .nr_regions     = 2,
 828                 .regions        = {
 829                         ERASEINFO(0x10000, 7),
 830                         ERASEINFO(0x02000, 8),
 831                 }
 832         }, {
 833                 .mfr_id         = MANUFACTURER_INTEL,
 834                 .dev_id         = I28F400B3B,
 835                 .name           = "Intel 28F400B3B",
 836                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 837                 .uaddr          = MTD_UADDR_UNNECESSARY,
 838                 .dev_size       = SIZE_512KiB,
 839                 .cmd_set        = P_ID_INTEL_STD,
 840                 .nr_regions     = 2,
 841                 .regions        = {
 842                         ERASEINFO(0x02000, 8),
 843                         ERASEINFO(0x10000, 7),
 844                 }
 845         }, {
 846                 .mfr_id         = MANUFACTURER_INTEL,
 847                 .dev_id         = I28F400B3T,
 848                 .name           = "Intel 28F400B3T",
 849                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
 850                 .uaddr          = MTD_UADDR_UNNECESSARY,
 851                 .dev_size       = SIZE_512KiB,
 852                 .cmd_set        = P_ID_INTEL_STD,
 853                 .nr_regions     = 2,
 854                 .regions        = {
 855                         ERASEINFO(0x10000, 7),
 856                         ERASEINFO(0x02000, 8),
 857                 }
 858         }, {
 859                 .mfr_id         = MANUFACTURER_INTEL,
 860                 .dev_id         = I28F008B3B,
 861                 .name           = "Intel 28F008B3B",
 862                 .devtypes       = CFI_DEVICETYPE_X8,
 863                 .uaddr          = MTD_UADDR_UNNECESSARY,
 864                 .dev_size       = SIZE_1MiB,
 865                 .cmd_set        = P_ID_INTEL_STD,
 866                 .nr_regions     = 2,
 867                 .regions        = {
 868                         ERASEINFO(0x02000, 8),
 869                         ERASEINFO(0x10000, 15),
 870                 }
 871         }, {
 872                 .mfr_id         = MANUFACTURER_INTEL,
 873                 .dev_id         = I28F008B3T,
 874                 .name           = "Intel 28F008B3T",
 875                 .devtypes       = CFI_DEVICETYPE_X8,
 876                 .uaddr          = MTD_UADDR_UNNECESSARY,
 877                 .dev_size       = SIZE_1MiB,
 878                 .cmd_set        = P_ID_INTEL_STD,
 879                 .nr_regions     = 2,
 880                 .regions        = {
 881                         ERASEINFO(0x10000, 15),
 882                         ERASEINFO(0x02000, 8),
 883                 }
 884         }, {
 885                 .mfr_id         = MANUFACTURER_INTEL,
 886                 .dev_id         = I28F008S5,
 887                 .name           = "Intel 28F008S5",
 888                 .devtypes       = CFI_DEVICETYPE_X8,
 889                 .uaddr          = MTD_UADDR_UNNECESSARY,
 890                 .dev_size       = SIZE_1MiB,
 891                 .cmd_set        = P_ID_INTEL_EXT,
 892                 .nr_regions     = 1,
 893                 .regions        = {
 894                         ERASEINFO(0x10000,16),
 895                 }
 896         }, {
 897                 .mfr_id         = MANUFACTURER_INTEL,
 898                 .dev_id         = I28F016S5,
 899                 .name           = "Intel 28F016S5",
 900                 .devtypes       = CFI_DEVICETYPE_X8,
 901                 .uaddr          = MTD_UADDR_UNNECESSARY,
 902                 .dev_size       = SIZE_2MiB,
 903                 .cmd_set        = P_ID_INTEL_EXT,
 904                 .nr_regions     = 1,
 905                 .regions        = {
 906                         ERASEINFO(0x10000,32),
 907                 }
 908         }, {
 909                 .mfr_id         = MANUFACTURER_INTEL,
 910                 .dev_id         = I28F008SA,
 911                 .name           = "Intel 28F008SA",
 912                 .devtypes       = CFI_DEVICETYPE_X8,
 913                 .uaddr          = MTD_UADDR_UNNECESSARY,
 914                 .dev_size       = SIZE_1MiB,
 915                 .cmd_set        = P_ID_INTEL_STD,
 916                 .nr_regions     = 1,
 917                 .regions        = {
 918                         ERASEINFO(0x10000, 16),
 919                 }
 920         }, {
 921                 .mfr_id         = MANUFACTURER_INTEL,
 922                 .dev_id         = I28F800B3B,
 923                 .name           = "Intel 28F800B3B",
 924                 .devtypes       = CFI_DEVICETYPE_X16,
 925                 .uaddr          = MTD_UADDR_UNNECESSARY,
 926                 .dev_size       = SIZE_1MiB,
 927                 .cmd_set        = P_ID_INTEL_STD,
 928                 .nr_regions     = 2,
 929                 .regions        = {
 930                         ERASEINFO(0x02000, 8),
 931                         ERASEINFO(0x10000, 15),
 932                 }
 933         }, {
 934                 .mfr_id         = MANUFACTURER_INTEL,
 935                 .dev_id         = I28F800B3T,
 936                 .name           = "Intel 28F800B3T",
 937                 .devtypes       = CFI_DEVICETYPE_X16,
 938                 .uaddr          = MTD_UADDR_UNNECESSARY,
 939                 .dev_size       = SIZE_1MiB,
 940                 .cmd_set        = P_ID_INTEL_STD,
 941                 .nr_regions     = 2,
 942                 .regions        = {
 943                         ERASEINFO(0x10000, 15),
 944                         ERASEINFO(0x02000, 8),
 945                 }
 946         }, {
 947                 .mfr_id         = MANUFACTURER_INTEL,
 948                 .dev_id         = I28F016B3B,
 949                 .name           = "Intel 28F016B3B",
 950                 .devtypes       = CFI_DEVICETYPE_X8,
 951                 .uaddr          = MTD_UADDR_UNNECESSARY,
 952                 .dev_size       = SIZE_2MiB,
 953                 .cmd_set        = P_ID_INTEL_STD,
 954                 .nr_regions     = 2,
 955                 .regions        = {
 956                         ERASEINFO(0x02000, 8),
 957                         ERASEINFO(0x10000, 31),
 958                 }
 959         }, {
 960                 .mfr_id         = MANUFACTURER_INTEL,
 961                 .dev_id         = I28F016S3,
 962                 .name           = "Intel I28F016S3",
 963                 .devtypes       = CFI_DEVICETYPE_X8,
 964                 .uaddr          = MTD_UADDR_UNNECESSARY,
 965                 .dev_size       = SIZE_2MiB,
 966                 .cmd_set        = P_ID_INTEL_STD,
 967                 .nr_regions     = 1,
 968                 .regions        = {
 969                         ERASEINFO(0x10000, 32),
 970                 }
 971         }, {
 972                 .mfr_id         = MANUFACTURER_INTEL,
 973                 .dev_id         = I28F016B3T,
 974                 .name           = "Intel 28F016B3T",
 975                 .devtypes       = CFI_DEVICETYPE_X8,
 976                 .uaddr          = MTD_UADDR_UNNECESSARY,
 977                 .dev_size       = SIZE_2MiB,
 978                 .cmd_set        = P_ID_INTEL_STD,
 979                 .nr_regions     = 2,
 980                 .regions        = {
 981                         ERASEINFO(0x10000, 31),
 982                         ERASEINFO(0x02000, 8),
 983                 }
 984         }, {
 985                 .mfr_id         = MANUFACTURER_INTEL,
 986                 .dev_id         = I28F160B3B,
 987                 .name           = "Intel 28F160B3B",
 988                 .devtypes       = CFI_DEVICETYPE_X16,
 989                 .uaddr          = MTD_UADDR_UNNECESSARY,
 990                 .dev_size       = SIZE_2MiB,
 991                 .cmd_set        = P_ID_INTEL_STD,
 992                 .nr_regions     = 2,
 993                 .regions        = {
 994                         ERASEINFO(0x02000, 8),
 995                         ERASEINFO(0x10000, 31),
 996                 }
 997         }, {
 998                 .mfr_id         = MANUFACTURER_INTEL,
 999                 .dev_id         = I28F160B3T,
1000                 .name           = "Intel 28F160B3T",
1001                 .devtypes       = CFI_DEVICETYPE_X16,
1002                 .uaddr          = MTD_UADDR_UNNECESSARY,
1003                 .dev_size       = SIZE_2MiB,
1004                 .cmd_set        = P_ID_INTEL_STD,
1005                 .nr_regions     = 2,
1006                 .regions        = {
1007                         ERASEINFO(0x10000, 31),
1008                         ERASEINFO(0x02000, 8),
1009                 }
1010         }, {
1011                 .mfr_id         = MANUFACTURER_INTEL,
1012                 .dev_id         = I28F320B3B,
1013                 .name           = "Intel 28F320B3B",
1014                 .devtypes       = CFI_DEVICETYPE_X16,
1015                 .uaddr          = MTD_UADDR_UNNECESSARY,
1016                 .dev_size       = SIZE_4MiB,
1017                 .cmd_set        = P_ID_INTEL_STD,
1018                 .nr_regions     = 2,
1019                 .regions        = {
1020                         ERASEINFO(0x02000, 8),
1021                         ERASEINFO(0x10000, 63),
1022                 }
1023         }, {
1024                 .mfr_id         = MANUFACTURER_INTEL,
1025                 .dev_id         = I28F320B3T,
1026                 .name           = "Intel 28F320B3T",
1027                 .devtypes       = CFI_DEVICETYPE_X16,
1028                 .uaddr          = MTD_UADDR_UNNECESSARY,
1029                 .dev_size       = SIZE_4MiB,
1030                 .cmd_set        = P_ID_INTEL_STD,
1031                 .nr_regions     = 2,
1032                 .regions        = {
1033                         ERASEINFO(0x10000, 63),
1034                         ERASEINFO(0x02000, 8),
1035                 }
1036         }, {
1037                 .mfr_id         = MANUFACTURER_INTEL,
1038                 .dev_id         = I28F640B3B,
1039                 .name           = "Intel 28F640B3B",
1040                 .devtypes       = CFI_DEVICETYPE_X16,
1041                 .uaddr          = MTD_UADDR_UNNECESSARY,
1042                 .dev_size       = SIZE_8MiB,
1043                 .cmd_set        = P_ID_INTEL_STD,
1044                 .nr_regions     = 2,
1045                 .regions        = {
1046                         ERASEINFO(0x02000, 8),
1047                         ERASEINFO(0x10000, 127),
1048                 }
1049         }, {
1050                 .mfr_id         = MANUFACTURER_INTEL,
1051                 .dev_id         = I28F640B3T,
1052                 .name           = "Intel 28F640B3T",
1053                 .devtypes       = CFI_DEVICETYPE_X16,
1054                 .uaddr          = MTD_UADDR_UNNECESSARY,
1055                 .dev_size       = SIZE_8MiB,
1056                 .cmd_set        = P_ID_INTEL_STD,
1057                 .nr_regions     = 2,
1058                 .regions        = {
1059                         ERASEINFO(0x10000, 127),
1060                         ERASEINFO(0x02000, 8),
1061                 }
1062         }, {
1063                 .mfr_id         = MANUFACTURER_INTEL,
1064                 .dev_id         = I82802AB,
1065                 .name           = "Intel 82802AB",
1066                 .devtypes       = CFI_DEVICETYPE_X8,
1067                 .uaddr          = MTD_UADDR_UNNECESSARY,
1068                 .dev_size       = SIZE_512KiB,
1069                 .cmd_set        = P_ID_INTEL_EXT,
1070                 .nr_regions     = 1,
1071                 .regions        = {
1072                         ERASEINFO(0x10000,8),
1073                 }
1074         }, {
1075                 .mfr_id         = MANUFACTURER_INTEL,
1076                 .dev_id         = I82802AC,
1077                 .name           = "Intel 82802AC",
1078                 .devtypes       = CFI_DEVICETYPE_X8,
1079                 .uaddr          = MTD_UADDR_UNNECESSARY,
1080                 .dev_size       = SIZE_1MiB,
1081                 .cmd_set        = P_ID_INTEL_EXT,
1082                 .nr_regions     = 1,
1083                 .regions        = {
1084                         ERASEINFO(0x10000,16),
1085                 }
1086         }, {
1087                 .mfr_id         = MANUFACTURER_MACRONIX,
1088                 .dev_id         = MX29LV040C,
1089                 .name           = "Macronix MX29LV040C",
1090                 .devtypes       = CFI_DEVICETYPE_X8,
1091                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
1092                 .dev_size       = SIZE_512KiB,
1093                 .cmd_set        = P_ID_AMD_STD,
1094                 .nr_regions     = 1,
1095                 .regions        = {
1096                         ERASEINFO(0x10000,8),
1097                 }
1098         }, {
1099                 .mfr_id         = MANUFACTURER_MACRONIX,
1100                 .dev_id         = MX29LV160T,
1101                 .name           = "MXIC MX29LV160T",
1102                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1103                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
1104                 .dev_size       = SIZE_2MiB,
1105                 .cmd_set        = P_ID_AMD_STD,
1106                 .nr_regions     = 4,
1107                 .regions        = {
1108                         ERASEINFO(0x10000,31),
1109                         ERASEINFO(0x08000,1),
1110                         ERASEINFO(0x02000,2),
1111                         ERASEINFO(0x04000,1)
1112                 }
1113         }, {
1114                 .mfr_id         = MANUFACTURER_NEC,
1115                 .dev_id         = UPD29F064115,
1116                 .name           = "NEC uPD29F064115",
1117                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1118                 .uaddr          = MTD_UADDR_0x0555_0x02AA,      /* ???? */
1119                 .dev_size       = SIZE_8MiB,
1120                 .cmd_set        = P_ID_AMD_STD,
1121                 .nr_regions     = 3,
1122                 .regions        = {
1123                         ERASEINFO(0x2000,8),
1124                         ERASEINFO(0x10000,126),
1125                         ERASEINFO(0x2000,8),
1126                 }
1127         }, {
1128                 .mfr_id         = MANUFACTURER_MACRONIX,
1129                 .dev_id         = MX29LV160B,
1130                 .name           = "MXIC MX29LV160B",
1131                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1132                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
1133                 .dev_size       = SIZE_2MiB,
1134                 .cmd_set        = P_ID_AMD_STD,
1135                 .nr_regions     = 4,
1136                 .regions        = {
1137                         ERASEINFO(0x04000,1),
1138                         ERASEINFO(0x02000,2),
1139                         ERASEINFO(0x08000,1),
1140                         ERASEINFO(0x10000,31)
1141                 }
1142         }, {
1143                 .mfr_id         = MANUFACTURER_MACRONIX,
1144                 .dev_id         = MX29F040,
1145                 .name           = "Macronix MX29F040",
1146                 .devtypes       = CFI_DEVICETYPE_X8,
1147                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
1148                 .dev_size       = SIZE_512KiB,
1149                 .cmd_set        = P_ID_AMD_STD,
1150                 .nr_regions     = 1,
1151                 .regions        = {
1152                         ERASEINFO(0x10000,8),
1153                 }
1154         }, {
1155                 .mfr_id         = MANUFACTURER_MACRONIX,
1156                 .dev_id         = MX29F016,
1157                 .name           = "Macronix MX29F016",
1158                 .devtypes       = CFI_DEVICETYPE_X8,
1159                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
1160                 .dev_size       = SIZE_2MiB,
1161                 .cmd_set        = P_ID_AMD_STD,
1162                 .nr_regions     = 1,
1163                 .regions        = {
1164                         ERASEINFO(0x10000,32),
1165                 }
1166         }, {
1167                 .mfr_id         = MANUFACTURER_MACRONIX,
1168                 .dev_id         = MX29F004T,
1169                 .name           = "Macronix MX29F004T",
1170                 .devtypes       = CFI_DEVICETYPE_X8,
1171                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
1172                 .dev_size       = SIZE_512KiB,
1173                 .cmd_set        = P_ID_AMD_STD,
1174                 .nr_regions     = 4,
1175                 .regions        = {
1176                         ERASEINFO(0x10000,7),
1177                         ERASEINFO(0x08000,1),
1178                         ERASEINFO(0x02000,2),
1179                         ERASEINFO(0x04000,1),
1180                 }
1181         }, {
1182                 .mfr_id         = MANUFACTURER_MACRONIX,
1183                 .dev_id         = MX29F004B,
1184                 .name           = "Macronix MX29F004B",
1185                 .devtypes       = CFI_DEVICETYPE_X8,
1186                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
1187                 .dev_size       = SIZE_512KiB,
1188                 .cmd_set        = P_ID_AMD_STD,
1189                 .nr_regions     = 4,
1190                 .regions        = {
1191                         ERASEINFO(0x04000,1),
1192                         ERASEINFO(0x02000,2),
1193                         ERASEINFO(0x08000,1),
1194                         ERASEINFO(0x10000,7),
1195                 }
1196         }, {
1197                 .mfr_id         = MANUFACTURER_MACRONIX,
1198                 .dev_id         = MX29F002T,
1199                 .name           = "Macronix MX29F002T",
1200                 .devtypes       = CFI_DEVICETYPE_X8,
1201                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
1202                 .dev_size       = SIZE_256KiB,
1203                 .cmd_set        = P_ID_AMD_STD,
1204                 .nr_regions     = 4,
1205                 .regions        = {
1206                         ERASEINFO(0x10000,3),
1207                         ERASEINFO(0x08000,1),
1208                         ERASEINFO(0x02000,2),
1209                         ERASEINFO(0x04000,1),
1210                 }
1211         }, {
1212                 .mfr_id         = MANUFACTURER_PMC,
1213                 .dev_id         = PM49FL002,
1214                 .name           = "PMC Pm49FL002",
1215                 .devtypes       = CFI_DEVICETYPE_X8,
1216                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1217                 .dev_size       = SIZE_256KiB,
1218                 .cmd_set        = P_ID_AMD_STD,
1219                 .nr_regions     = 1,
1220                 .regions        = {
1221                         ERASEINFO( 0x01000, 64 )
1222                 }
1223         }, {
1224                 .mfr_id         = MANUFACTURER_PMC,
1225                 .dev_id         = PM49FL004,
1226                 .name           = "PMC Pm49FL004",
1227                 .devtypes       = CFI_DEVICETYPE_X8,
1228                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1229                 .dev_size       = SIZE_512KiB,
1230                 .cmd_set        = P_ID_AMD_STD,
1231                 .nr_regions     = 1,
1232                 .regions        = {
1233                         ERASEINFO( 0x01000, 128 )
1234                 }
1235         }, {
1236                 .mfr_id         = MANUFACTURER_PMC,
1237                 .dev_id         = PM49FL008,
1238                 .name           = "PMC Pm49FL008",
1239                 .devtypes       = CFI_DEVICETYPE_X8,
1240                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1241                 .dev_size       = SIZE_1MiB,
1242                 .cmd_set        = P_ID_AMD_STD,
1243                 .nr_regions     = 1,
1244                 .regions        = {
1245                         ERASEINFO( 0x01000, 256 )
1246                 }
1247         }, {
1248                 .mfr_id         = MANUFACTURER_SHARP,
1249                 .dev_id         = LH28F640BF,
1250                 .name           = "LH28F640BF",
1251                 .devtypes       = CFI_DEVICETYPE_X8,
1252                 .uaddr          = MTD_UADDR_UNNECESSARY,
1253                 .dev_size       = SIZE_4MiB,
1254                 .cmd_set        = P_ID_INTEL_STD,
1255                 .nr_regions     = 1,
1256                 .regions        = {
1257                         ERASEINFO(0x40000,16),
1258                 }
1259         }, {
1260                 .mfr_id         = MANUFACTURER_SST,
1261                 .dev_id         = SST39LF512,
1262                 .name           = "SST 39LF512",
1263                 .devtypes       = CFI_DEVICETYPE_X8,
1264                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1265                 .dev_size       = SIZE_64KiB,
1266                 .cmd_set        = P_ID_AMD_STD,
1267                 .nr_regions     = 1,
1268                 .regions        = {
1269                         ERASEINFO(0x01000,16),
1270                 }
1271         }, {
1272                 .mfr_id         = MANUFACTURER_SST,
1273                 .dev_id         = SST39LF010,
1274                 .name           = "SST 39LF010",
1275                 .devtypes       = CFI_DEVICETYPE_X8,
1276                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1277                 .dev_size       = SIZE_128KiB,
1278                 .cmd_set        = P_ID_AMD_STD,
1279                 .nr_regions     = 1,
1280                 .regions        = {
1281                         ERASEINFO(0x01000,32),
1282                 }
1283         }, {
1284                 .mfr_id         = MANUFACTURER_SST,
1285                 .dev_id         = SST29EE020,
1286                 .name           = "SST 29EE020",
1287                 .devtypes       = CFI_DEVICETYPE_X8,
1288                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1289                 .dev_size       = SIZE_256KiB,
1290                 .cmd_set        = P_ID_SST_PAGE,
1291                 .nr_regions     = 1,
1292                 .regions = {ERASEINFO(0x01000,64),
1293                 }
1294         }, {
1295                 .mfr_id         = MANUFACTURER_SST,
1296                 .dev_id         = SST29LE020,
1297                 .name           = "SST 29LE020",
1298                 .devtypes       = CFI_DEVICETYPE_X8,
1299                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1300                 .dev_size       = SIZE_256KiB,
1301                 .cmd_set        = P_ID_SST_PAGE,
1302                 .nr_regions     = 1,
1303                 .regions = {ERASEINFO(0x01000,64),
1304                 }
1305         }, {
1306                 .mfr_id         = MANUFACTURER_SST,
1307                 .dev_id         = SST39LF020,
1308                 .name           = "SST 39LF020",
1309                 .devtypes       = CFI_DEVICETYPE_X8,
1310                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1311                 .dev_size       = SIZE_256KiB,
1312                 .cmd_set        = P_ID_AMD_STD,
1313                 .nr_regions     = 1,
1314                 .regions        = {
1315                         ERASEINFO(0x01000,64),
1316                 }
1317         }, {
1318                 .mfr_id         = MANUFACTURER_SST,
1319                 .dev_id         = SST39LF040,
1320                 .name           = "SST 39LF040",
1321                 .devtypes       = CFI_DEVICETYPE_X8,
1322                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1323                 .dev_size       = SIZE_512KiB,
1324                 .cmd_set        = P_ID_AMD_STD,
1325                 .nr_regions     = 1,
1326                 .regions        = {
1327                         ERASEINFO(0x01000,128),
1328                 }
1329         }, {
1330                 .mfr_id         = MANUFACTURER_SST,
1331                 .dev_id         = SST39SF010A,
1332                 .name           = "SST 39SF010A",
1333                 .devtypes       = CFI_DEVICETYPE_X8,
1334                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1335                 .dev_size       = SIZE_128KiB,
1336                 .cmd_set        = P_ID_AMD_STD,
1337                 .nr_regions     = 1,
1338                 .regions        = {
1339                         ERASEINFO(0x01000,32),
1340                 }
1341         }, {
1342                 .mfr_id         = MANUFACTURER_SST,
1343                 .dev_id         = SST39SF020A,
1344                 .name           = "SST 39SF020A",
1345                 .devtypes       = CFI_DEVICETYPE_X8,
1346                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1347                 .dev_size       = SIZE_256KiB,
1348                 .cmd_set        = P_ID_AMD_STD,
1349                 .nr_regions     = 1,
1350                 .regions        = {
1351                         ERASEINFO(0x01000,64),
1352                 }
1353         }, {
1354                 .mfr_id         = MANUFACTURER_SST,
1355                 .dev_id         = SST49LF040B,
1356                 .name           = "SST 49LF040B",
1357                 .devtypes       = CFI_DEVICETYPE_X8,
1358                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1359                 .dev_size       = SIZE_512KiB,
1360                 .cmd_set        = P_ID_AMD_STD,
1361                 .nr_regions     = 1,
1362                 .regions        = {
1363                         ERASEINFO(0x01000,128),
1364                 }
1365         }, {
1366
1367                 .mfr_id         = MANUFACTURER_SST,
1368                 .dev_id         = SST49LF004B,
1369                 .name           = "SST 49LF004B",
1370                 .devtypes       = CFI_DEVICETYPE_X8,
1371                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1372                 .dev_size       = SIZE_512KiB,
1373                 .cmd_set        = P_ID_AMD_STD,
1374                 .nr_regions     = 1,
1375                 .regions        = {
1376                         ERASEINFO(0x01000,128),
1377                 }
1378         }, {
1379                 .mfr_id         = MANUFACTURER_SST,
1380                 .dev_id         = SST49LF008A,
1381                 .name           = "SST 49LF008A",
1382                 .devtypes       = CFI_DEVICETYPE_X8,
1383                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1384                 .dev_size       = SIZE_1MiB,
1385                 .cmd_set        = P_ID_AMD_STD,
1386                 .nr_regions     = 1,
1387                 .regions        = {
1388                         ERASEINFO(0x01000,256),
1389                 }
1390         }, {
1391                 .mfr_id         = MANUFACTURER_SST,
1392                 .dev_id         = SST49LF030A,
1393                 .name           = "SST 49LF030A",
1394                 .devtypes       = CFI_DEVICETYPE_X8,
1395                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1396                 .dev_size       = SIZE_512KiB,
1397                 .cmd_set        = P_ID_AMD_STD,
1398                 .nr_regions     = 1,
1399                 .regions        = {
1400                         ERASEINFO(0x01000,96),
1401                 }
1402         }, {
1403                 .mfr_id         = MANUFACTURER_SST,
1404                 .dev_id         = SST49LF040A,
1405                 .name           = "SST 49LF040A",
1406                 .devtypes       = CFI_DEVICETYPE_X8,
1407                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1408                 .dev_size       = SIZE_512KiB,
1409                 .cmd_set        = P_ID_AMD_STD,
1410                 .nr_regions     = 1,
1411                 .regions        = {
1412                         ERASEINFO(0x01000,128),
1413                 }
1414         }, {
1415                 .mfr_id         = MANUFACTURER_SST,
1416                 .dev_id         = SST49LF080A,
1417                 .name           = "SST 49LF080A",
1418                 .devtypes       = CFI_DEVICETYPE_X8,
1419                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1420                 .dev_size       = SIZE_1MiB,
1421                 .cmd_set        = P_ID_AMD_STD,
1422                 .nr_regions     = 1,
1423                 .regions        = {
1424                         ERASEINFO(0x01000,256),
1425                 }
1426         }, {
1427                 .mfr_id         = MANUFACTURER_SST,     /* should be CFI */
1428                 .dev_id         = SST39LF160,
1429                 .name           = "SST 39LF160",
1430                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1431                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,      /* ???? */
1432                 .dev_size       = SIZE_2MiB,
1433                 .cmd_set        = P_ID_AMD_STD,
1434                 .nr_regions     = 2,
1435                 .regions        = {
1436                         ERASEINFO(0x1000,256),
1437                         ERASEINFO(0x1000,256)
1438                 }
1439         }, {
1440                 .mfr_id         = MANUFACTURER_SST,     /* should be CFI */
1441                 .dev_id         = SST39VF1601,
1442                 .name           = "SST 39VF1601",
1443                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1444                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,      /* ???? */
1445                 .dev_size       = SIZE_2MiB,
1446                 .cmd_set        = P_ID_AMD_STD,
1447                 .nr_regions     = 2,
1448                 .regions        = {
1449                         ERASEINFO(0x1000,256),
1450                         ERASEINFO(0x1000,256)
1451                 }
1452         }, {
1453                 .mfr_id         = MANUFACTURER_SST,
1454                 .dev_id         = SST36VF3203,
1455                 .name           = "SST 36VF3203",
1456                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1457                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
1458                 .dev_size       = SIZE_4MiB,
1459                 .cmd_set        = P_ID_AMD_STD,
1460                 .nr_regions     = 1,
1461                 .regions        = {
1462                         ERASEINFO(0x10000,64),
1463                 }
1464         }, {
1465                 .mfr_id         = MANUFACTURER_ST,
1466                 .dev_id         = M29F800AB,
1467                 .name           = "ST M29F800AB",
1468                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1469                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
1470                 .dev_size       = SIZE_1MiB,
1471                 .cmd_set        = P_ID_AMD_STD,
1472                 .nr_regions     = 4,
1473                 .regions        = {
1474                         ERASEINFO(0x04000,1),
1475                         ERASEINFO(0x02000,2),
1476                         ERASEINFO(0x08000,1),
1477                         ERASEINFO(0x10000,15),
1478                 }
1479         }, {
1480                 .mfr_id         = MANUFACTURER_ST,      /* FIXME - CFI device? */
1481                 .dev_id         = M29W800DT,
1482                 .name           = "ST M29W800DT",
1483                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1484                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,      /* ???? */
1485                 .dev_size       = SIZE_1MiB,
1486                 .cmd_set        = P_ID_AMD_STD,
1487                 .nr_regions     = 4,
1488                 .regions        = {
1489                         ERASEINFO(0x10000,15),
1490                         ERASEINFO(0x08000,1),
1491                         ERASEINFO(0x02000,2),
1492                         ERASEINFO(0x04000,1)
1493                 }
1494         }, {
1495                 .mfr_id         = MANUFACTURER_ST,      /* FIXME - CFI device? */
1496                 .dev_id         = M29W800DB,
1497                 .name           = "ST M29W800DB",
1498                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1499                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,      /* ???? */
1500                 .dev_size       = SIZE_1MiB,
1501                 .cmd_set        = P_ID_AMD_STD,
1502                 .nr_regions     = 4,
1503                 .regions        = {
1504                         ERASEINFO(0x04000,1),
1505                         ERASEINFO(0x02000,2),
1506                         ERASEINFO(0x08000,1),
1507                         ERASEINFO(0x10000,15)
1508                 }
1509         },  {
1510                 .mfr_id         = MANUFACTURER_ST,
1511                 .dev_id         = M29W400DT,
1512                 .name           = "ST M29W400DT",
1513                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1514                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
1515                 .dev_size       = SIZE_512KiB,
1516                 .cmd_set        = P_ID_AMD_STD,
1517                 .nr_regions     = 4,
1518                 .regions        = {
1519                         ERASEINFO(0x04000,7),
1520                         ERASEINFO(0x02000,1),
1521                         ERASEINFO(0x08000,2),
1522                         ERASEINFO(0x10000,1)
1523                 }
1524         }, {
1525                 .mfr_id         = MANUFACTURER_ST,
1526                 .dev_id         = M29W400DB,
1527                 .name           = "ST M29W400DB",
1528                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1529                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
1530                 .dev_size       = SIZE_512KiB,
1531                 .cmd_set        = P_ID_AMD_STD,
1532                 .nr_regions     = 4,
1533                 .regions        = {
1534                         ERASEINFO(0x04000,1),
1535                         ERASEINFO(0x02000,2),
1536                         ERASEINFO(0x08000,1),
1537                         ERASEINFO(0x10000,7)
1538                 }
1539         }, {
1540                 .mfr_id         = MANUFACTURER_ST,      /* FIXME - CFI device? */
1541                 .dev_id         = M29W160DT,
1542                 .name           = "ST M29W160DT",
1543                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1544                 .uaddr          = MTD_UADDR_0x0555_0x02AA,      /* ???? */
1545                 .dev_size       = SIZE_2MiB,
1546                 .cmd_set        = P_ID_AMD_STD,
1547                 .nr_regions     = 4,
1548                 .regions        = {
1549                         ERASEINFO(0x10000,31),
1550                         ERASEINFO(0x08000,1),
1551                         ERASEINFO(0x02000,2),
1552                         ERASEINFO(0x04000,1)
1553                 }
1554         }, {
1555                 .mfr_id         = MANUFACTURER_ST,      /* FIXME - CFI device? */
1556                 .dev_id         = M29W160DB,
1557                 .name           = "ST M29W160DB",
1558                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1559                 .uaddr          = MTD_UADDR_0x0555_0x02AA,      /* ???? */
1560                 .dev_size       = SIZE_2MiB,
1561                 .cmd_set        = P_ID_AMD_STD,
1562                 .nr_regions     = 4,
1563                 .regions        = {
1564                         ERASEINFO(0x04000,1),
1565                         ERASEINFO(0x02000,2),
1566                         ERASEINFO(0x08000,1),
1567                         ERASEINFO(0x10000,31)
1568                 }
1569         }, {
1570                 .mfr_id         = MANUFACTURER_ST,
1571                 .dev_id         = M29W040B,
1572                 .name           = "ST M29W040B",
1573                 .devtypes       = CFI_DEVICETYPE_X8,
1574                 .uaddr          = MTD_UADDR_0x0555_0x02AA,
1575                 .dev_size       = SIZE_512KiB,
1576                 .cmd_set        = P_ID_AMD_STD,
1577                 .nr_regions     = 1,
1578                 .regions        = {
1579                         ERASEINFO(0x10000,8),
1580                 }
1581         }, {
1582                 .mfr_id         = MANUFACTURER_ST,
1583                 .dev_id         = M50FW040,
1584                 .name           = "ST M50FW040",
1585                 .devtypes       = CFI_DEVICETYPE_X8,
1586                 .uaddr          = MTD_UADDR_UNNECESSARY,
1587                 .dev_size       = SIZE_512KiB,
1588                 .cmd_set        = P_ID_INTEL_EXT,
1589                 .nr_regions     = 1,
1590                 .regions        = {
1591                         ERASEINFO(0x10000,8),
1592                 }
1593         }, {
1594                 .mfr_id         = MANUFACTURER_ST,
1595                 .dev_id         = M50FW080,
1596                 .name           = "ST M50FW080",
1597                 .devtypes       = CFI_DEVICETYPE_X8,
1598                 .uaddr          = MTD_UADDR_UNNECESSARY,
1599                 .dev_size       = SIZE_1MiB,
1600                 .cmd_set        = P_ID_INTEL_EXT,
1601                 .nr_regions     = 1,
1602                 .regions        = {
1603                         ERASEINFO(0x10000,16),
1604                 }
1605         }, {
1606                 .mfr_id         = MANUFACTURER_ST,
1607                 .dev_id         = M50FW016,
1608                 .name           = "ST M50FW016",
1609                 .devtypes       = CFI_DEVICETYPE_X8,
1610                 .uaddr          = MTD_UADDR_UNNECESSARY,
1611                 .dev_size       = SIZE_2MiB,
1612                 .cmd_set        = P_ID_INTEL_EXT,
1613                 .nr_regions     = 1,
1614                 .regions        = {
1615                         ERASEINFO(0x10000,32),
1616                 }
1617         }, {
1618                 .mfr_id         = MANUFACTURER_ST,
1619                 .dev_id         = M50LPW080,
1620                 .name           = "ST M50LPW080",
1621                 .devtypes       = CFI_DEVICETYPE_X8,
1622                 .uaddr          = MTD_UADDR_UNNECESSARY,
1623                 .dev_size       = SIZE_1MiB,
1624                 .cmd_set        = P_ID_INTEL_EXT,
1625                 .nr_regions     = 1,
1626                 .regions        = {
1627                         ERASEINFO(0x10000,16),
1628                 },
1629         }, {
1630                 .mfr_id         = MANUFACTURER_ST,
1631                 .dev_id         = M50FLW080A,
1632                 .name           = "ST M50FLW080A",
1633                 .devtypes       = CFI_DEVICETYPE_X8,
1634                 .uaddr          = MTD_UADDR_UNNECESSARY,
1635                 .dev_size       = SIZE_1MiB,
1636                 .cmd_set        = P_ID_INTEL_EXT,
1637                 .nr_regions     = 4,
1638                 .regions        = {
1639                         ERASEINFO(0x1000,16),
1640                         ERASEINFO(0x10000,13),
1641                         ERASEINFO(0x1000,16),
1642                         ERASEINFO(0x1000,16),
1643                 }
1644         }, {
1645                 .mfr_id         = MANUFACTURER_ST,
1646                 .dev_id         = M50FLW080B,
1647                 .name           = "ST M50FLW080B",
1648                 .devtypes       = CFI_DEVICETYPE_X8,
1649                 .uaddr          = MTD_UADDR_UNNECESSARY,
1650                 .dev_size       = SIZE_1MiB,
1651                 .cmd_set        = P_ID_INTEL_EXT,
1652                 .nr_regions     = 4,
1653                 .regions        = {
1654                         ERASEINFO(0x1000,16),
1655                         ERASEINFO(0x1000,16),
1656                         ERASEINFO(0x10000,13),
1657                         ERASEINFO(0x1000,16),
1658                 }
1659         }, {
1660                 .mfr_id         = MANUFACTURER_TOSHIBA,
1661                 .dev_id         = TC58FVT160,
1662                 .name           = "Toshiba TC58FVT160",
1663                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1664                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
1665                 .dev_size       = SIZE_2MiB,
1666                 .cmd_set        = P_ID_AMD_STD,
1667                 .nr_regions     = 4,
1668                 .regions        = {
1669                         ERASEINFO(0x10000,31),
1670                         ERASEINFO(0x08000,1),
1671                         ERASEINFO(0x02000,2),
1672                         ERASEINFO(0x04000,1)
1673                 }
1674         }, {
1675                 .mfr_id         = MANUFACTURER_TOSHIBA,
1676                 .dev_id         = TC58FVB160,
1677                 .name           = "Toshiba TC58FVB160",
1678                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1679                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
1680                 .dev_size       = SIZE_2MiB,
1681                 .cmd_set        = P_ID_AMD_STD,
1682                 .nr_regions     = 4,
1683                 .regions        = {
1684                         ERASEINFO(0x04000,1),
1685                         ERASEINFO(0x02000,2),
1686                         ERASEINFO(0x08000,1),
1687                         ERASEINFO(0x10000,31)
1688                 }
1689         }, {
1690                 .mfr_id         = MANUFACTURER_TOSHIBA,
1691                 .dev_id         = TC58FVB321,
1692                 .name           = "Toshiba TC58FVB321",
1693                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1694                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
1695                 .dev_size       = SIZE_4MiB,
1696                 .cmd_set        = P_ID_AMD_STD,
1697                 .nr_regions     = 2,
1698                 .regions        = {
1699                         ERASEINFO(0x02000,8),
1700                         ERASEINFO(0x10000,63)
1701                 }
1702         }, {
1703                 .mfr_id         = MANUFACTURER_TOSHIBA,
1704                 .dev_id         = TC58FVT321,
1705                 .name           = "Toshiba TC58FVT321",
1706                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1707                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
1708                 .dev_size       = SIZE_4MiB,
1709                 .cmd_set        = P_ID_AMD_STD,
1710                 .nr_regions     = 2,
1711                 .regions        = {
1712                         ERASEINFO(0x10000,63),
1713                         ERASEINFO(0x02000,8)
1714                 }
1715         }, {
1716                 .mfr_id         = MANUFACTURER_TOSHIBA,
1717                 .dev_id         = TC58FVB641,
1718                 .name           = "Toshiba TC58FVB641",
1719                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1720                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
1721                 .dev_size       = SIZE_8MiB,
1722                 .cmd_set        = P_ID_AMD_STD,
1723                 .nr_regions     = 2,
1724                 .regions        = {
1725                         ERASEINFO(0x02000,8),
1726                         ERASEINFO(0x10000,127)
1727                 }
1728         }, {
1729                 .mfr_id         = MANUFACTURER_TOSHIBA,
1730                 .dev_id         = TC58FVT641,
1731                 .name           = "Toshiba TC58FVT641",
1732                 .devtypes       = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
1733                 .uaddr          = MTD_UADDR_0x0AAA_0x0555,
1734                 .dev_size       = SIZE_8MiB,
1735                 .cmd_set        = P_ID_AMD_STD,
1736                 .nr_regions     = 2,
1737                 .regions        = {
1738                         ERASEINFO(0x10000,127),
1739                         ERASEINFO(0x02000,8)
1740                 }
1741         }, {
1742                 .mfr_id         = MANUFACTURER_WINBOND,
1743                 .dev_id         = W49V002A,
1744                 .name           = "Winbond W49V002A",
1745                 .devtypes       = CFI_DEVICETYPE_X8,
1746                 .uaddr          = MTD_UADDR_0x5555_0x2AAA,
1747                 .dev_size       = SIZE_256KiB,
1748                 .cmd_set        = P_ID_AMD_STD,
1749                 .nr_regions     = 4,
1750                 .regions        = {
1751                         ERASEINFO(0x10000, 3),
1752                         ERASEINFO(0x08000, 1),
1753                         ERASEINFO(0x02000, 2),
1754                         ERASEINFO(0x04000, 1),
1755                 }
1756         }
1757 };
1758
1759 static inline u32 jedec_read_mfr(struct map_info *map, uint32_t base,
1760         struct cfi_private *cfi)
1761 {
1762         map_word result;
1763         unsigned long mask;
1764         int bank = 0;
1765
1766         /* According to JEDEC "Standard Manufacturer's Identification Code"
1767          * (http://www.jedec.org/download/search/jep106W.pdf)
1768          * several first banks can contain 0x7f instead of actual ID
1769          */
1770         do {
1771                 uint32_t ofs = cfi_build_cmd_addr(0 + (bank << 8),
1772                                                   cfi_interleave(cfi),
1773                                                   cfi->device_type);
1774                 mask = (1 << (cfi->device_type * 8)) - 1;
1775                 result = map_read(map, base + ofs);
1776                 bank++;
1777         } while ((result.x[0] & mask) == CONTINUATION_CODE);
1778
1779         return result.x[0] & mask;
1780 }
1781
1782 static inline u32 jedec_read_id(struct map_info *map, uint32_t base,
1783         struct cfi_private *cfi)
1784 {
1785         map_word result;
1786         unsigned long mask;
1787         u32 ofs = cfi_build_cmd_addr(1, cfi_interleave(cfi), cfi->device_type);
1788         mask = (1 << (cfi->device_type * 8)) -1;
1789         result = map_read(map, base + ofs);
1790         return result.x[0] & mask;
1791 }
1792
1793 static void jedec_reset(u32 base, struct map_info *map, struct cfi_private *cfi)
1794 {
1795         /* Reset */
1796
1797         /* after checking the datasheets for SST, MACRONIX and ATMEL
1798          * (oh and incidentaly the jedec spec - 3.5.3.3) the reset
1799          * sequence is *supposed* to be 0xaa at 0x5555, 0x55 at
1800          * 0x2aaa, 0xF0 at 0x5555 this will not affect the AMD chips
1801          * as they will ignore the writes and dont care what address
1802          * the F0 is written to */
1803         if (cfi->addr_unlock1) {
1804                 DEBUG( MTD_DEBUG_LEVEL3,
1805                        "reset unlock called %x %x \n",
1806                        cfi->addr_unlock1,cfi->addr_unlock2);
1807                 cfi_send_gen_cmd(0xaa, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
1808                 cfi_send_gen_cmd(0x55, cfi->addr_unlock2, base, map, cfi, cfi->device_type, NULL);
1809         }
1810
1811         cfi_send_gen_cmd(0xF0, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
1812         /* Some misdesigned Intel chips do not respond for 0xF0 for a reset,
1813          * so ensure we're in read mode.  Send both the Intel and the AMD command
1814          * for this.  Intel uses 0xff for this, AMD uses 0xff for NOP, so
1815          * this should be safe.
1816          */
1817         cfi_send_gen_cmd(0xFF, 0, base, map, cfi, cfi->device_type, NULL);
1818         /* FIXME - should have reset delay before continuing */
1819 }
1820
1821
1822 static int cfi_jedec_setup(struct cfi_private *p_cfi, int index)
1823 {
1824         int i,num_erase_regions;
1825         uint8_t uaddr;
1826
1827         if (! (jedec_table[index].devtypes & p_cfi->device_type)) {
1828                 DEBUG(MTD_DEBUG_LEVEL1, "Rejecting potential %s with incompatible %d-bit device type\n",
1829                       jedec_table[index].name, 4 * (1<<p_cfi->device_type));
1830                 return 0;
1831         }
1832
1833         printk(KERN_INFO "Found: %s\n",jedec_table[index].name);
1834
1835         num_erase_regions = jedec_table[index].nr_regions;
1836
1837         p_cfi->cfiq = kmalloc(sizeof(struct cfi_ident) + num_erase_regions * 4, GFP_KERNEL);
1838         if (!p_cfi->cfiq) {
1839                 //xx printk(KERN_WARNING "%s: kmalloc failed for CFI ident structure\n", map->name);
1840                 return 0;
1841         }
1842
1843         memset(p_cfi->cfiq,0,sizeof(struct cfi_ident));
1844
1845         p_cfi->cfiq->P_ID = jedec_table[index].cmd_set;
1846         p_cfi->cfiq->NumEraseRegions = jedec_table[index].nr_regions;
1847         p_cfi->cfiq->DevSize = jedec_table[index].dev_size;
1848         p_cfi->cfi_mode = CFI_MODE_JEDEC;
1849
1850         for (i=0; i<num_erase_regions; i++){
1851                 p_cfi->cfiq->EraseRegionInfo[i] = jedec_table[index].regions[i];
1852         }
1853         p_cfi->cmdset_priv = NULL;
1854
1855         /* This may be redundant for some cases, but it doesn't hurt */
1856         p_cfi->mfr = jedec_table[index].mfr_id;
1857         p_cfi->id = jedec_table[index].dev_id;
1858
1859         uaddr = jedec_table[index].uaddr;
1860
1861         /* The table has unlock addresses in _bytes_, and we try not to let
1862            our brains explode when we see the datasheets talking about address
1863            lines numbered from A-1 to A18. The CFI table has unlock addresses
1864            in device-words according to the mode the device is connected in */
1865         p_cfi->addr_unlock1 = unlock_addrs[uaddr].addr1 / p_cfi->device_type;
1866         p_cfi->addr_unlock2 = unlock_addrs[uaddr].addr2 / p_cfi->device_type;
1867
1868         return 1;       /* ok */
1869 }
1870
1871
1872 /*
1873  * There is a BIG problem properly ID'ing the JEDEC device and guaranteeing
1874  * the mapped address, unlock addresses, and proper chip ID.  This function
1875  * attempts to minimize errors.  It is doubtfull that this probe will ever
1876  * be perfect - consequently there should be some module parameters that
1877  * could be manually specified to force the chip info.
1878  */
1879 static inline int jedec_match( uint32_t base,
1880                                struct map_info *map,
1881                                struct cfi_private *cfi,
1882                                const struct amd_flash_info *finfo )
1883 {
1884         int rc = 0;           /* failure until all tests pass */
1885         u32 mfr, id;
1886         uint8_t uaddr;
1887
1888         /*
1889          * The IDs must match.  For X16 and X32 devices operating in
1890          * a lower width ( X8 or X16 ), the device ID's are usually just
1891          * the lower byte(s) of the larger device ID for wider mode.  If
1892          * a part is found that doesn't fit this assumption (device id for
1893          * smaller width mode is completely unrealated to full-width mode)
1894          * then the jedec_table[] will have to be augmented with the IDs
1895          * for different widths.
1896          */
1897         switch (cfi->device_type) {
1898         case CFI_DEVICETYPE_X8:
1899                 mfr = (uint8_t)finfo->mfr_id;
1900                 id = (uint8_t)finfo->dev_id;
1901
1902                 /* bjd: it seems that if we do this, we can end up
1903                  * detecting 16bit flashes as an 8bit device, even though
1904                  * there aren't.
1905                  */
1906                 if (finfo->dev_id > 0xff) {
1907                         DEBUG( MTD_DEBUG_LEVEL3, "%s(): ID is not 8bit\n",
1908                                __func__);
1909                         goto match_done;
1910                 }
1911                 break;
1912         case CFI_DEVICETYPE_X16:
1913                 mfr = (uint16_t)finfo->mfr_id;
1914                 id = (uint16_t)finfo->dev_id;
1915                 break;
1916         case CFI_DEVICETYPE_X32:
1917                 mfr = (uint16_t)finfo->mfr_id;
1918                 id = (uint32_t)finfo->dev_id;
1919                 break;
1920         default:
1921                 printk(KERN_WARNING
1922                        "MTD %s(): Unsupported device type %d\n",
1923                        __func__, cfi->device_type);
1924                 goto match_done;
1925         }
1926         if ( cfi->mfr != mfr || cfi->id != id ) {
1927                 goto match_done;
1928         }
1929
1930         /* the part size must fit in the memory window */
1931         DEBUG( MTD_DEBUG_LEVEL3,
1932                "MTD %s(): Check fit 0x%.8x + 0x%.8x = 0x%.8x\n",
1933                __func__, base, 1 << finfo->dev_size, base + (1 << finfo->dev_size) );
1934         if ( base + cfi_interleave(cfi) * ( 1 << finfo->dev_size ) > map->size ) {
1935                 DEBUG( MTD_DEBUG_LEVEL3,
1936                        "MTD %s(): 0x%.4x 0x%.4x %dKiB doesn't fit\n",
1937                        __func__, finfo->mfr_id, finfo->dev_id,
1938                        1 << finfo->dev_size );
1939                 goto match_done;
1940         }
1941
1942         if (! (finfo->devtypes & cfi->device_type))
1943                 goto match_done;
1944
1945         uaddr = finfo->uaddr;
1946
1947         DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): check unlock addrs 0x%.4x 0x%.4x\n",
1948                __func__, cfi->addr_unlock1, cfi->addr_unlock2 );
1949         if ( MTD_UADDR_UNNECESSARY != uaddr && MTD_UADDR_DONT_CARE != uaddr
1950              && ( unlock_addrs[uaddr].addr1 / cfi->device_type != cfi->addr_unlock1 ||
1951                   unlock_addrs[uaddr].addr2 / cfi->device_type != cfi->addr_unlock2 ) ) {
1952                 DEBUG( MTD_DEBUG_LEVEL3,
1953                         "MTD %s(): 0x%.4x 0x%.4x did not match\n",
1954                         __func__,
1955                         unlock_addrs[uaddr].addr1,
1956                         unlock_addrs[uaddr].addr2);
1957                 goto match_done;
1958         }
1959
1960         /*
1961          * Make sure the ID's dissappear when the device is taken out of
1962          * ID mode.  The only time this should fail when it should succeed
1963          * is when the ID's are written as data to the same
1964          * addresses.  For this rare and unfortunate case the chip
1965          * cannot be probed correctly.
1966          * FIXME - write a driver that takes all of the chip info as
1967          * module parameters, doesn't probe but forces a load.
1968          */
1969         DEBUG( MTD_DEBUG_LEVEL3,
1970                "MTD %s(): check ID's disappear when not in ID mode\n",
1971                __func__ );
1972         jedec_reset( base, map, cfi );
1973         mfr = jedec_read_mfr( map, base, cfi );
1974         id = jedec_read_id( map, base, cfi );
1975         if ( mfr == cfi->mfr && id == cfi->id ) {
1976                 DEBUG( MTD_DEBUG_LEVEL3,
1977                        "MTD %s(): ID 0x%.2x:0x%.2x did not change after reset:\n"
1978                        "You might need to manually specify JEDEC parameters.\n",
1979                         __func__, cfi->mfr, cfi->id );
1980                 goto match_done;
1981         }
1982
1983         /* all tests passed - mark  as success */
1984         rc = 1;
1985
1986         /*
1987          * Put the device back in ID mode - only need to do this if we
1988          * were truly frobbing a real device.
1989          */
1990         DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): return to ID mode\n", __func__ );
1991         if (cfi->addr_unlock1) {
1992                 cfi_send_gen_cmd(0xaa, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
1993                 cfi_send_gen_cmd(0x55, cfi->addr_unlock2, base, map, cfi, cfi->device_type, NULL);
1994         }
1995         cfi_send_gen_cmd(0x90, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
1996         /* FIXME - should have a delay before continuing */
1997
1998  match_done:
1999         return rc;
2000 }
2001
2002
2003 static int jedec_probe_chip(struct map_info *map, __u32 base,
2004                             unsigned long *chip_map, struct cfi_private *cfi)
2005 {
2006         int i;
2007         enum uaddr uaddr_idx = MTD_UADDR_NOT_SUPPORTED;
2008         u32 probe_offset1, probe_offset2;
2009
2010  retry:
2011         if (!cfi->numchips) {
2012                 uaddr_idx++;
2013
2014                 if (MTD_UADDR_UNNECESSARY == uaddr_idx)
2015                         return 0;
2016
2017                 cfi->addr_unlock1 = unlock_addrs[uaddr_idx].addr1 / cfi->device_type;
2018                 cfi->addr_unlock2 = unlock_addrs[uaddr_idx].addr2 / cfi->device_type;
2019         }
2020
2021         /* Make certain we aren't probing past the end of map */
2022         if (base >= map->size) {
2023                 printk(KERN_NOTICE
2024                         "Probe at base(0x%08x) past the end of the map(0x%08lx)\n",
2025                         base, map->size -1);
2026                 return 0;
2027
2028         }
2029         /* Ensure the unlock addresses we try stay inside the map */
2030         probe_offset1 = cfi_build_cmd_addr(cfi->addr_unlock1, cfi_interleave(cfi), cfi->device_type);
2031         probe_offset2 = cfi_build_cmd_addr(cfi->addr_unlock2, cfi_interleave(cfi), cfi->device_type);
2032         if (    ((base + probe_offset1 + map_bankwidth(map)) >= map->size) ||
2033                 ((base + probe_offset2 + map_bankwidth(map)) >= map->size))
2034                 goto retry;
2035
2036         /* Reset */
2037         jedec_reset(base, map, cfi);
2038
2039         /* Autoselect Mode */
2040         if(cfi->addr_unlock1) {
2041                 cfi_send_gen_cmd(0xaa, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
2042                 cfi_send_gen_cmd(0x55, cfi->addr_unlock2, base, map, cfi, cfi->device_type, NULL);
2043         }
2044         cfi_send_gen_cmd(0x90, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
2045         /* FIXME - should have a delay before continuing */
2046
2047         if (!cfi->numchips) {
2048                 /* This is the first time we're called. Set up the CFI
2049                    stuff accordingly and return */
2050
2051                 cfi->mfr = jedec_read_mfr(map, base, cfi);
2052                 cfi->id = jedec_read_id(map, base, cfi);
2053                 DEBUG(MTD_DEBUG_LEVEL3,
2054                       "Search for id:(%02x %02x) interleave(%d) type(%d)\n",
2055                         cfi->mfr, cfi->id, cfi_interleave(cfi), cfi->device_type);
2056                 for (i = 0; i < ARRAY_SIZE(jedec_table); i++) {
2057                         if ( jedec_match( base, map, cfi, &jedec_table[i] ) ) {
2058                                 DEBUG( MTD_DEBUG_LEVEL3,
2059                                        "MTD %s(): matched device 0x%x,0x%x unlock_addrs: 0x%.4x 0x%.4x\n",
2060                                        __func__, cfi->mfr, cfi->id,
2061                                        cfi->addr_unlock1, cfi->addr_unlock2 );
2062                                 if (!cfi_jedec_setup(cfi, i))
2063                                         return 0;
2064                                 goto ok_out;
2065                         }
2066                 }
2067                 goto retry;
2068         } else {
2069                 uint16_t mfr;
2070                 uint16_t id;
2071
2072                 /* Make sure it is a chip of the same manufacturer and id */
2073                 mfr = jedec_read_mfr(map, base, cfi);
2074                 id = jedec_read_id(map, base, cfi);
2075
2076                 if ((mfr != cfi->mfr) || (id != cfi->id)) {
2077                         printk(KERN_DEBUG "%s: Found different chip or no chip at all (mfr 0x%x, id 0x%x) at 0x%x\n",
2078                                map->name, mfr, id, base);
2079                         jedec_reset(base, map, cfi);
2080                         return 0;
2081                 }
2082         }
2083
2084         /* Check each previous chip locations to see if it's an alias */
2085         for (i=0; i < (base >> cfi->chipshift); i++) {
2086                 unsigned long start;
2087                 if(!test_bit(i, chip_map)) {
2088                         continue; /* Skip location; no valid chip at this address */
2089                 }
2090                 start = i << cfi->chipshift;
2091                 if (jedec_read_mfr(map, start, cfi) == cfi->mfr &&
2092                     jedec_read_id(map, start, cfi) == cfi->id) {
2093                         /* Eep. This chip also looks like it's in autoselect mode.
2094                            Is it an alias for the new one? */
2095                         jedec_reset(start, map, cfi);
2096
2097                         /* If the device IDs go away, it's an alias */
2098                         if (jedec_read_mfr(map, base, cfi) != cfi->mfr ||
2099                             jedec_read_id(map, base, cfi) != cfi->id) {
2100                                 printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n",
2101                                        map->name, base, start);
2102                                 return 0;
2103                         }
2104
2105                         /* Yes, it's actually got the device IDs as data. Most
2106                          * unfortunate. Stick the new chip in read mode
2107                          * too and if it's the same, assume it's an alias. */
2108                         /* FIXME: Use other modes to do a proper check */
2109                         jedec_reset(base, map, cfi);
2110                         if (jedec_read_mfr(map, base, cfi) == cfi->mfr &&
2111                             jedec_read_id(map, base, cfi) == cfi->id) {
2112                                 printk(KERN_DEBUG "%s: Found an alias at 0x%x for the chip at 0x%lx\n",
2113                                        map->name, base, start);
2114                                 return 0;
2115                         }
2116                 }
2117         }
2118
2119         /* OK, if we got to here, then none of the previous chips appear to
2120            be aliases for the current one. */
2121         set_bit((base >> cfi->chipshift), chip_map); /* Update chip map */
2122         cfi->numchips++;
2123
2124 ok_out:
2125         /* Put it back into Read Mode */
2126         jedec_reset(base, map, cfi);
2127
2128         printk(KERN_INFO "%s: Found %d x%d devices at 0x%x in %d-bit bank\n",
2129                map->name, cfi_interleave(cfi), cfi->device_type*8, base,
2130                map->bankwidth*8);
2131
2132         return 1;
2133 }
2134
2135 static struct chip_probe jedec_chip_probe = {
2136         .name = "JEDEC",
2137         .probe_chip = jedec_probe_chip
2138 };
2139
2140 static struct mtd_info *jedec_probe(struct map_info *map)
2141 {
2142         /*
2143          * Just use the generic probe stuff to call our CFI-specific
2144          * chip_probe routine in all the possible permutations, etc.
2145          */
2146         return mtd_do_chip_probe(map, &jedec_chip_probe);
2147 }
2148
2149 static struct mtd_chip_driver jedec_chipdrv = {
2150         .probe  = jedec_probe,
2151         .name   = "jedec_probe",
2152         .module = THIS_MODULE
2153 };
2154
2155 static int __init jedec_probe_init(void)
2156 {
2157         register_mtd_chip_driver(&jedec_chipdrv);
2158         return 0;
2159 }
2160
2161 static void __exit jedec_probe_exit(void)
2162 {
2163         unregister_mtd_chip_driver(&jedec_chipdrv);
2164 }
2165
2166 module_init(jedec_probe_init);
2167 module_exit(jedec_probe_exit);
2168
2169 MODULE_LICENSE("GPL");
2170 MODULE_AUTHOR("Erwin Authried <eauth@softsys.co.at> et al.");
2171 MODULE_DESCRIPTION("Probe code for JEDEC-compliant flash chips");