drivers/mtd/maps/pcmciamtd.c

   1 /*
   2  * pcmciamtd.c - MTD driver for PCMCIA flash memory cards
   3  *
   4  * Author: Simon Evans <spse@secret.org.uk>
   5  *
   6  * Copyright (C) 2002 Simon Evans
   7  *
   8  * Licence: GPL
   9  *
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/slab.h>
  14 #include <linux/timer.h>
  15 #include <linux/init.h>
  16 #include <asm/io.h>
  17 #include <asm/system.h>
  18
  19 #include <pcmcia/cistpl.h>
  20 #include <pcmcia/ds.h>
  21
  22 #include <linux/mtd/map.h>
  23 #include <linux/mtd/mtd.h>
  24
  25 #ifdef CONFIG_MTD_DEBUG
  26 static int debug = CONFIG_MTD_DEBUG_VERBOSE;
  27 module_param(debug, int, 0);
  28 MODULE_PARM_DESC(debug, "Set Debug Level 0=quiet, 5=noisy");
  29 #undef DEBUG
  30 #define DEBUG(n, format, arg...) \
  31         if (n <= debug) {        \
  32                 printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __func__ , ## arg); \
  33         }
  34
  35 #else
  36 #undef DEBUG
  37 #define DEBUG(n, arg...)
  38 static const int debug = 0;
  39 #endif
  40
  41 #define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg)
  42
  43 #define DRIVER_DESC     "PCMCIA Flash memory card driver"
  44
  45 /* Size of the PCMCIA address space: 26 bits = 64 MB */
  46 #define MAX_PCMCIA_ADDR 0x4000000
  47
  48 struct pcmciamtd_dev {
  49         struct pcmcia_device    *p_dev;
  50         caddr_t         win_base;       /* ioremapped address of PCMCIA window */
  51         unsigned int    win_size;       /* size of window */
  52         unsigned int    offset;         /* offset into card the window currently points at */
  53         struct map_info pcmcia_map;
  54         struct mtd_info *mtd_info;
  55         int             vpp;
  56         char            mtd_name[sizeof(struct cistpl_vers_1_t)];
  57 };
  58
  59
  60 /* Module parameters */
  61
  62 /* 2 = do 16-bit transfers, 1 = do 8-bit transfers */
  63 static int bankwidth = 2;
  64
  65 /* Speed of memory accesses, in ns */
  66 static int mem_speed;
  67
  68 /* Force the size of an SRAM card */
  69 static int force_size;
  70
  71 /* Force Vpp */
  72 static int vpp;
  73
  74 /* Set Vpp */
  75 static int setvpp;
  76
  77 /* Force card to be treated as FLASH, ROM or RAM */
  78 static int mem_type;
  79
  80 MODULE_LICENSE("GPL");
  81 MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>");
  82 MODULE_DESCRIPTION(DRIVER_DESC);
  83 module_param(bankwidth, int, 0);
  84 MODULE_PARM_DESC(bankwidth, "Set bankwidth (1=8 bit, 2=16 bit, default=2)");
  85 module_param(mem_speed, int, 0);
  86 MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns");
  87 module_param(force_size, int, 0);
  88 MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)");
  89 module_param(setvpp, int, 0);
  90 MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)");
  91 module_param(vpp, int, 0);
  92 MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)");
  93 module_param(mem_type, int, 0);
  94 MODULE_PARM_DESC(mem_type, "Set Memory type (0=Flash, 1=RAM, 2=ROM, default=0)");
  95
  96
  97 /* read/write{8,16} copy_{from,to} routines with window remapping
  98  * to access whole card
  99  */
 100 static caddr_t remap_window(struct map_info *map, unsigned long to)
 101 {
 102         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
 103         struct resource *win = (struct resource *) map->map_priv_2;
 104         unsigned int offset;
 105         int ret;
 106
 107         if (!pcmcia_dev_present(dev->p_dev)) {
 108                 DEBUG(1, "device removed");
 109                 return 0;
 110         }
 111
 112         offset = to & ~(dev->win_size-1);
 113         if (offset != dev->offset) {
 114                 DEBUG(2, "Remapping window from 0x%8.8x to 0x%8.8x",
 115                       dev->offset, offset);
 116                 ret = pcmcia_map_mem_page(dev->p_dev, win, offset);
 117                 if (ret != 0)
 118                         return NULL;
 119                 dev->offset = offset;
 120         }
 121         return dev->win_base + (to & (dev->win_size-1));
 122 }
 123
 124
 125 static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs)
 126 {
 127         caddr_t addr;
 128         map_word d = {{0}};
 129
 130         addr = remap_window(map, ofs);
 131         if(!addr)
 132                 return d;
 133
 134         d.x[0] = readb(addr);
 135         DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx", ofs, addr, d.x[0]);
 136         return d;
 137 }
 138
 139
 140 static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs)
 141 {
 142         caddr_t addr;
 143         map_word d = {{0}};
 144
 145         addr = remap_window(map, ofs);
 146         if(!addr)
 147                 return d;
 148
 149         d.x[0] = readw(addr);
 150         DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx", ofs, addr, d.x[0]);
 151         return d;
 152 }
 153
 154
 155 static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len)
 156 {
 157         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
 158         unsigned long win_size = dev->win_size;
 159
 160         DEBUG(3, "to = %p from = %lu len = %zd", to, from, len);
 161         while(len) {
 162                 int toread = win_size - (from & (win_size-1));
 163                 caddr_t addr;
 164
 165                 if(toread > len)
 166                         toread = len;
 167
 168                 addr = remap_window(map, from);
 169                 if(!addr)
 170                         return;
 171
 172                 DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread);
 173                 memcpy_fromio(to, addr, toread);
 174                 len -= toread;
 175                 to += toread;
 176                 from += toread;
 177         }
 178 }
 179
 180
 181 static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr)
 182 {
 183         caddr_t addr = remap_window(map, adr);
 184
 185         if(!addr)
 186                 return;
 187
 188         DEBUG(3, "adr = 0x%08lx (%p)  data = 0x%02lx", adr, addr, d.x[0]);
 189         writeb(d.x[0], addr);
 190 }
 191
 192
 193 static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr)
 194 {
 195         caddr_t addr = remap_window(map, adr);
 196         if(!addr)
 197                 return;
 198
 199         DEBUG(3, "adr = 0x%08lx (%p)  data = 0x%04lx", adr, addr, d.x[0]);
 200         writew(d.x[0], addr);
 201 }
 202
 203
 204 static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len)
 205 {
 206         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
 207         unsigned long win_size = dev->win_size;
 208
 209         DEBUG(3, "to = %lu from = %p len = %zd", to, from, len);
 210         while(len) {
 211                 int towrite = win_size - (to & (win_size-1));
 212                 caddr_t addr;
 213
 214                 if(towrite > len)
 215                         towrite = len;
 216
 217                 addr = remap_window(map, to);
 218                 if(!addr)
 219                         return;
 220
 221                 DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite);
 222                 memcpy_toio(addr, from, towrite);
 223                 len -= towrite;
 224                 to += towrite;
 225                 from += towrite;
 226         }
 227 }
 228
 229
 230 /* read/write{8,16} copy_{from,to} routines with direct access */
 231
 232 #define DEV_REMOVED(x)  (!(pcmcia_dev_present(((struct pcmciamtd_dev *)map->map_priv_1)->p_dev)))
 233
 234 static map_word pcmcia_read8(struct map_info *map, unsigned long ofs)
 235 {
 236         caddr_t win_base = (caddr_t)map->map_priv_2;
 237         map_word d = {{0}};
 238
 239         if(DEV_REMOVED(map))
 240                 return d;
 241
 242         d.x[0] = readb(win_base + ofs);
 243         DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx",
 244               ofs, win_base + ofs, d.x[0]);
 245         return d;
 246 }
 247
 248
 249 static map_word pcmcia_read16(struct map_info *map, unsigned long ofs)
 250 {
 251         caddr_t win_base = (caddr_t)map->map_priv_2;
 252         map_word d = {{0}};
 253
 254         if(DEV_REMOVED(map))
 255                 return d;
 256
 257         d.x[0] = readw(win_base + ofs);
 258         DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx",
 259               ofs, win_base + ofs, d.x[0]);
 260         return d;
 261 }
 262
 263
 264 static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
 265 {
 266         caddr_t win_base = (caddr_t)map->map_priv_2;
 267
 268         if(DEV_REMOVED(map))
 269                 return;
 270
 271         DEBUG(3, "to = %p from = %lu len = %zd", to, from, len);
 272         memcpy_fromio(to, win_base + from, len);
 273 }
 274
 275
 276 static void pcmcia_write8(struct map_info *map, map_word d, unsigned long adr)
 277 {
 278         caddr_t win_base = (caddr_t)map->map_priv_2;
 279
 280         if(DEV_REMOVED(map))
 281                 return;
 282
 283         DEBUG(3, "adr = 0x%08lx (%p)  data = 0x%02lx",
 284               adr, win_base + adr, d.x[0]);
 285         writeb(d.x[0], win_base + adr);
 286 }
 287
 288
 289 static void pcmcia_write16(struct map_info *map, map_word d, unsigned long adr)
 290 {
 291         caddr_t win_base = (caddr_t)map->map_priv_2;
 292
 293         if(DEV_REMOVED(map))
 294                 return;
 295
 296         DEBUG(3, "adr = 0x%08lx (%p)  data = 0x%04lx",
 297               adr, win_base + adr, d.x[0]);
 298         writew(d.x[0], win_base + adr);
 299 }
 300
 301
 302 static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
 303 {
 304         caddr_t win_base = (caddr_t)map->map_priv_2;
 305
 306         if(DEV_REMOVED(map))
 307                 return;
 308
 309         DEBUG(3, "to = %lu from = %p len = %zd", to, from, len);
 310         memcpy_toio(win_base + to, from, len);
 311 }
 312
 313
 314 static void pcmciamtd_set_vpp(struct map_info *map, int on)
 315 {
 316         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
 317         struct pcmcia_device *link = dev->p_dev;
 318
 319         DEBUG(2, "dev = %p on = %d vpp = %d\n", dev, on, dev->vpp);
 320         pcmcia_fixup_vpp(link, on ? dev->vpp : 0);
 321 }
 322
 323
 324 static void pcmciamtd_release(struct pcmcia_device *link)
 325 {
 326         struct pcmciamtd_dev *dev = link->priv;
 327
 328         DEBUG(3, "link = 0x%p", link);
 329
 330         if (link->resource[2]->end) {
 331                 if(dev->win_base) {
 332                         iounmap(dev->win_base);
 333                         dev->win_base = NULL;
 334                 }
 335         }
 336         pcmcia_disable_device(link);
 337 }
 338
 339
 340 #ifdef CONFIG_MTD_DEBUG
 341 static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev,
 342                                 tuple_t *tuple,
 343                                 void *priv_data)
 344 {
 345         cisparse_t parse;
 346
 347         if (!pcmcia_parse_tuple(tuple, &parse)) {
 348                 cistpl_format_t *t = &parse.format;
 349                 (void)t; /* Shut up, gcc */
 350                 DEBUG(2, "Format type: %u, Error Detection: %u, offset = %u, length =%u",
 351                         t->type, t->edc, t->offset, t->length);
 352         }
 353         return -ENOSPC;
 354 }
 355
 356 static int pcmciamtd_cistpl_jedec(struct pcmcia_device *p_dev,
 357                                 tuple_t *tuple,
 358                                 void *priv_data)
 359 {
 360         cisparse_t parse;
 361         int i;
 362
 363         if (!pcmcia_parse_tuple(tuple, &parse)) {
 364                 cistpl_jedec_t *t = &parse.jedec;
 365                 for (i = 0; i < t->nid; i++)
 366                         DEBUG(2, "JEDEC: 0x%02x 0x%02x",
 367                               t->id[i].mfr, t->id[i].info);
 368         }
 369         return -ENOSPC;
 370 }
 371 #endif
 372
 373 static int pcmciamtd_cistpl_device(struct pcmcia_device *p_dev,
 374                                 tuple_t *tuple,
 375                                 void *priv_data)
 376 {
 377         struct pcmciamtd_dev *dev = priv_data;
 378         cisparse_t parse;
 379         cistpl_device_t *t = &parse.device;
 380         int i;
 381
 382         if (pcmcia_parse_tuple(tuple, &parse))
 383                 return -EINVAL;
 384
 385         DEBUG(2, "Common memory:");
 386         dev->pcmcia_map.size = t->dev[0].size;
 387         /* from here on: DEBUG only */
 388         for (i = 0; i < t->ndev; i++) {
 389                 DEBUG(2, "Region %d, type = %u", i, t->dev[i].type);
 390                 DEBUG(2, "Region %d, wp = %u", i, t->dev[i].wp);
 391                 DEBUG(2, "Region %d, speed = %u ns", i, t->dev[i].speed);
 392                 DEBUG(2, "Region %d, size = %u bytes", i, t->dev[i].size);
 393         }
 394         return 0;
 395 }
 396
 397 static int pcmciamtd_cistpl_geo(struct pcmcia_device *p_dev,
 398                                 tuple_t *tuple,
 399                                 void *priv_data)
 400 {
 401         struct pcmciamtd_dev *dev = priv_data;
 402         cisparse_t parse;
 403         cistpl_device_geo_t *t = &parse.device_geo;
 404         int i;
 405
 406         if (pcmcia_parse_tuple(tuple, &parse))
 407                 return -EINVAL;
 408
 409         dev->pcmcia_map.bankwidth = t->geo[0].buswidth;
 410         /* from here on: DEBUG only */
 411         for (i = 0; i < t->ngeo; i++) {
 412                 DEBUG(2, "region: %d bankwidth = %u", i, t->geo[i].buswidth);
 413                 DEBUG(2, "region: %d erase_block = %u", i, t->geo[i].erase_block);
 414                 DEBUG(2, "region: %d read_block = %u", i, t->geo[i].read_block);
 415                 DEBUG(2, "region: %d write_block = %u", i, t->geo[i].write_block);
 416                 DEBUG(2, "region: %d partition = %u", i, t->geo[i].partition);
 417                 DEBUG(2, "region: %d interleave = %u", i, t->geo[i].interleave);
 418         }
 419         return 0;
 420 }
 421
 422
 423 static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev, int *new_name)
 424 {
 425         int i;
 426
 427         if (p_dev->prod_id[0]) {
 428                 dev->mtd_name[0] = '\0';
 429                 for (i = 0; i < 4; i++) {
 430                         if (i)
 431                                 strcat(dev->mtd_name, " ");
 432                         if (p_dev->prod_id[i])
 433                                 strcat(dev->mtd_name, p_dev->prod_id[i]);
 434                 }
 435                 DEBUG(2, "Found name: %s", dev->mtd_name);
 436         }
 437
 438 #ifdef CONFIG_MTD_DEBUG
 439         pcmcia_loop_tuple(p_dev, CISTPL_FORMAT, pcmciamtd_cistpl_format, NULL);
 440         pcmcia_loop_tuple(p_dev, CISTPL_JEDEC_C, pcmciamtd_cistpl_jedec, NULL);
 441 #endif
 442         pcmcia_loop_tuple(p_dev, CISTPL_DEVICE, pcmciamtd_cistpl_device, dev);
 443         pcmcia_loop_tuple(p_dev, CISTPL_DEVICE_GEO, pcmciamtd_cistpl_geo, dev);
 444
 445         if(!dev->pcmcia_map.size)
 446                 dev->pcmcia_map.size = MAX_PCMCIA_ADDR;
 447
 448         if(!dev->pcmcia_map.bankwidth)
 449                 dev->pcmcia_map.bankwidth = 2;
 450
 451         if(force_size) {
 452                 dev->pcmcia_map.size = force_size << 20;
 453                 DEBUG(2, "size forced to %dM", force_size);
 454         }
 455
 456         if(bankwidth) {
 457                 dev->pcmcia_map.bankwidth = bankwidth;
 458                 DEBUG(2, "bankwidth forced to %d", bankwidth);
 459         }
 460
 461         dev->pcmcia_map.name = dev->mtd_name;
 462         if(!dev->mtd_name[0]) {
 463                 strcpy(dev->mtd_name, "PCMCIA Memory card");
 464                 *new_name = 1;
 465         }
 466
 467         DEBUG(1, "Device: Size: %lu Width:%d Name: %s",
 468               dev->pcmcia_map.size,
 469               dev->pcmcia_map.bankwidth << 3, dev->mtd_name);
 470 }
 471
 472
 473 static int pcmciamtd_config(struct pcmcia_device *link)
 474 {
 475         struct pcmciamtd_dev *dev = link->priv;
 476         struct mtd_info *mtd = NULL;
 477         int ret;
 478         int i, j = 0;
 479         static char *probes[] = { "jedec_probe", "cfi_probe" };
 480         int new_name = 0;
 481
 482         DEBUG(3, "link=0x%p", link);
 483
 484         card_settings(dev, link, &new_name);
 485
 486         dev->pcmcia_map.phys = NO_XIP;
 487         dev->pcmcia_map.copy_from = pcmcia_copy_from_remap;
 488         dev->pcmcia_map.copy_to = pcmcia_copy_to_remap;
 489         if (dev->pcmcia_map.bankwidth == 1) {
 490                 dev->pcmcia_map.read = pcmcia_read8_remap;
 491                 dev->pcmcia_map.write = pcmcia_write8_remap;
 492         } else {
 493                 dev->pcmcia_map.read = pcmcia_read16_remap;
 494                 dev->pcmcia_map.write = pcmcia_write16_remap;
 495         }
 496         if(setvpp == 1)
 497                 dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp;
 498
 499         /* Request a memory window for PCMCIA. Some architeures can map windows
 500          * upto the maximum that PCMCIA can support (64MiB) - this is ideal and
 501          * we aim for a window the size of the whole card - otherwise we try
 502          * smaller windows until we succeed
 503          */
 504
 505         link->resource[2]->flags |=  WIN_MEMORY_TYPE_CM | WIN_ENABLE;
 506         link->resource[2]->flags |= (dev->pcmcia_map.bankwidth == 1) ?
 507                                         WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16;
 508         link->resource[2]->start = 0;
 509         link->resource[2]->end = (force_size) ? force_size << 20 :
 510                                         MAX_PCMCIA_ADDR;
 511         dev->win_size = 0;
 512
 513         do {
 514                 int ret;
 515                 DEBUG(2, "requesting window with size = %luKiB memspeed = %d",
 516                         (unsigned long) resource_size(link->resource[2]) >> 10,
 517                         mem_speed);
 518                 ret = pcmcia_request_window(link, link->resource[2], mem_speed);
 519                 DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size);
 520                 if(ret) {
 521                         j++;
 522                         link->resource[2]->start = 0;
 523                         link->resource[2]->end = (force_size) ?
 524                                         force_size << 20 : MAX_PCMCIA_ADDR;
 525                         link->resource[2]->end >>= j;
 526                 } else {
 527                         DEBUG(2, "Got window of size %luKiB", (unsigned long)
 528                                 resource_size(link->resource[2]) >> 10);
 529                         dev->win_size = resource_size(link->resource[2]);
 530                         break;
 531                 }
 532         } while (link->resource[2]->end >= 0x1000);
 533
 534         DEBUG(2, "dev->win_size = %d", dev->win_size);
 535
 536         if(!dev->win_size) {
 537                 dev_err(&dev->p_dev->dev, "Cannot allocate memory window\n");
 538                 pcmciamtd_release(link);
 539                 return -ENODEV;
 540         }
 541         DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10);
 542
 543         /* Get write protect status */
 544         dev->win_base = ioremap(link->resource[2]->start,
 545                                 resource_size(link->resource[2]));
 546         if(!dev->win_base) {
 547                 dev_err(&dev->p_dev->dev, "ioremap(%pR) failed\n",
 548                         link->resource[2]);
 549                 pcmciamtd_release(link);
 550                 return -ENODEV;
 551         }
 552         DEBUG(1, "mapped window dev = %p @ %pR, base = %p",
 553               dev, link->resource[2], dev->win_base);
 554
 555         dev->offset = 0;
 556         dev->pcmcia_map.map_priv_1 = (unsigned long)dev;
 557         dev->pcmcia_map.map_priv_2 = (unsigned long)link->resource[2];
 558
 559         dev->vpp = (vpp) ? vpp : link->socket->socket.Vpp;
 560         if(setvpp == 2) {
 561                 link->vpp = dev->vpp;
 562         } else {
 563                 link->vpp = 0;
 564         }
 565
 566         link->config_index = 0;
 567         DEBUG(2, "Setting Configuration");
 568         ret = pcmcia_enable_device(link);
 569         if (ret != 0) {
 570                 if (dev->win_base) {
 571                         iounmap(dev->win_base);
 572                         dev->win_base = NULL;
 573                 }
 574                 return -ENODEV;
 575         }
 576
 577         if(mem_type == 1) {
 578                 mtd = do_map_probe("map_ram", &dev->pcmcia_map);
 579         } else if(mem_type == 2) {
 580                 mtd = do_map_probe("map_rom", &dev->pcmcia_map);
 581         } else {
 582                 for(i = 0; i < ARRAY_SIZE(probes); i++) {
 583                         DEBUG(1, "Trying %s", probes[i]);
 584                         mtd = do_map_probe(probes[i], &dev->pcmcia_map);
 585                         if(mtd)
 586                                 break;
 587
 588                         DEBUG(1, "FAILED: %s", probes[i]);
 589                 }
 590         }
 591
 592         if(!mtd) {
 593                 DEBUG(1, "Can not find an MTD");
 594                 pcmciamtd_release(link);
 595                 return -ENODEV;
 596         }
 597
 598         dev->mtd_info = mtd;
 599         mtd->owner = THIS_MODULE;
 600
 601         if(new_name) {
 602                 int size = 0;
 603                 char unit = ' ';
 604                 /* Since we are using a default name, make it better by adding
 605                  * in the size
 606                  */
 607                 if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */
 608                         size = mtd->size >> 10;
 609                         unit = 'K';
 610                 } else {
 611                         size = mtd->size >> 20;
 612                         unit = 'M';
 613                 }
 614                 snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card");
 615         }
 616
 617         /* If the memory found is fits completely into the mapped PCMCIA window,
 618            use the faster non-remapping read/write functions */
 619         if(mtd->size <= dev->win_size) {
 620                 DEBUG(1, "Using non remapping memory functions");
 621                 dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base;
 622                 if (dev->pcmcia_map.bankwidth == 1) {
 623                         dev->pcmcia_map.read = pcmcia_read8;
 624                         dev->pcmcia_map.write = pcmcia_write8;
 625                 } else {
 626                         dev->pcmcia_map.read = pcmcia_read16;
 627                         dev->pcmcia_map.write = pcmcia_write16;
 628                 }
 629                 dev->pcmcia_map.copy_from = pcmcia_copy_from;
 630                 dev->pcmcia_map.copy_to = pcmcia_copy_to;
 631         }
 632
 633         if(add_mtd_device(mtd)) {
 634                 map_destroy(mtd);
 635                 dev->mtd_info = NULL;
 636                 dev_err(&dev->p_dev->dev,
 637                         "Could not register the MTD device\n");
 638                 pcmciamtd_release(link);
 639                 return -ENODEV;
 640         }
 641         dev_info(&dev->p_dev->dev, "mtd%d: %s\n", mtd->index, mtd->name);
 642         return 0;
 643 }
 644
 645
 646 static int pcmciamtd_suspend(struct pcmcia_device *dev)
 647 {
 648         DEBUG(2, "EVENT_PM_RESUME");
 649
 650         /* get_lock(link); */
 651
 652         return 0;
 653 }
 654
 655 static int pcmciamtd_resume(struct pcmcia_device *dev)
 656 {
 657         DEBUG(2, "EVENT_PM_SUSPEND");
 658
 659         /* free_lock(link); */
 660
 661         return 0;
 662 }
 663
 664
 665 static void pcmciamtd_detach(struct pcmcia_device *link)
 666 {
 667         struct pcmciamtd_dev *dev = link->priv;
 668
 669         DEBUG(3, "link=0x%p", link);
 670
 671         if(dev->mtd_info) {
 672                 del_mtd_device(dev->mtd_info);
 673                 dev_info(&dev->p_dev->dev, "mtd%d: Removing\n",
 674                          dev->mtd_info->index);
 675                 map_destroy(dev->mtd_info);
 676         }
 677
 678         pcmciamtd_release(link);
 679 }
 680
 681
 682 static int pcmciamtd_probe(struct pcmcia_device *link)
 683 {
 684         struct pcmciamtd_dev *dev;
 685
 686         /* Create new memory card device */
 687         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 688         if (!dev) return -ENOMEM;
 689         DEBUG(1, "dev=0x%p", dev);
 690
 691         dev->p_dev = link;
 692         link->priv = dev;
 693
 694         return pcmciamtd_config(link);
 695 }
 696
 697 static struct pcmcia_device_id pcmciamtd_ids[] = {
 698         PCMCIA_DEVICE_FUNC_ID(1),
 699         PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21),
 700         PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21),
 701         PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a),
 702         PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e),
 703         PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf),
 704         PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb),
 705         PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c),
 706         PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda),
 707         PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0),
 708         PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8),
 709         PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c),
 710         PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0),
 711         PCMCIA_DEVICE_PROD_ID123("M-Systems", "M-SYS Flash Memory Card", "(c) M-Systems", 0x7ed2ad87, 0x675dc3fb, 0x7aef3965),
 712         PCMCIA_DEVICE_PROD_ID12("PRETEC", "  2MB SRAM CARD", 0xebf91155, 0x805360ca),
 713         PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b),
 714         PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad),
 715         PCMCIA_DEVICE_PROD_ID12("SMART Modular Technologies", " 4MB FLASH Card", 0x96fd8277, 0x737a5b05),
 716         PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca),
 717         PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944),
 718         /* the following was commented out in pcmcia-cs-3.2.7 */
 719         /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */
 720 #ifdef CONFIG_MTD_PCMCIA_ANONYMOUS
 721         { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, },
 722 #endif
 723         PCMCIA_DEVICE_NULL
 724 };
 725 MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids);
 726
 727 static struct pcmcia_driver pcmciamtd_driver = {
 728         .name           = "pcmciamtd",
 729         .probe          = pcmciamtd_probe,
 730         .remove         = pcmciamtd_detach,
 731         .owner          = THIS_MODULE,
 732         .id_table       = pcmciamtd_ids,
 733         .suspend        = pcmciamtd_suspend,
 734         .resume         = pcmciamtd_resume,
 735 };
 736
 737
 738 static int __init init_pcmciamtd(void)
 739 {
 740         if(bankwidth && bankwidth != 1 && bankwidth != 2) {
 741                 info("bad bankwidth (%d), using default", bankwidth);
 742                 bankwidth = 2;
 743         }
 744         if(force_size && (force_size < 1 || force_size > 64)) {
 745                 info("bad force_size (%d), using default", force_size);
 746                 force_size = 0;
 747         }
 748         if(mem_type && mem_type != 1 && mem_type != 2) {
 749                 info("bad mem_type (%d), using default", mem_type);
 750                 mem_type = 0;
 751         }
 752         return pcmcia_register_driver(&pcmciamtd_driver);
 753 }
 754
 755
 756 static void __exit exit_pcmciamtd(void)
 757 {
 758         DEBUG(1, DRIVER_DESC " unloading");
 759         pcmcia_unregister_driver(&pcmciamtd_driver);
 760 }
 761
 762 module_init(init_pcmciamtd);
 763 module_exit(exit_pcmciamtd);