hw/block/pflash_cfi01.c

   1 /*
   2  *  CFI parallel flash with Intel command set emulation
   3  *
   4  *  Copyright (c) 2006 Thorsten Zitterell
   5  *  Copyright (c) 2005 Jocelyn Mayer
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 /*
  22  * For now, this code can emulate flashes of 1, 2 or 4 bytes width.
  23  * Supported commands/modes are:
  24  * - flash read
  25  * - flash write
  26  * - flash ID read
  27  * - sector erase
  28  * - CFI queries
  29  *
  30  * It does not support timings
  31  * It does not support flash interleaving
  32  * It does not implement software data protection as found in many real chips
  33  * It does not implement erase suspend/resume commands
  34  * It does not implement multiple sectors erase
  35  *
  36  * It does not implement much more ...
  37  */
  38
  39 #include "hw/hw.h"
  40 #include "hw/block/flash.h"
  41 #include "block/block.h"
  42 #include "qemu/timer.h"
  43 #include "exec/address-spaces.h"
  44 #include "qemu/host-utils.h"
  45 #include "hw/sysbus.h"
  46
  47 #define PFLASH_BUG(fmt, ...) \
  48 do { \
  49     fprintf(stderr, "PFLASH: Possible BUG - " fmt, ## __VA_ARGS__); \
  50     exit(1); \
  51 } while(0)
  52
  53 /* #define PFLASH_DEBUG */
  54 #ifdef PFLASH_DEBUG
  55 #define DPRINTF(fmt, ...)                                   \
  56 do {                                                        \
  57     fprintf(stderr, "PFLASH: " fmt , ## __VA_ARGS__);       \
  58 } while (0)
  59 #else
  60 #define DPRINTF(fmt, ...) do { } while (0)
  61 #endif
  62
  63 struct pflash_t {
  64     SysBusDevice busdev;
  65     BlockDriverState *bs;
  66     uint32_t nb_blocs;
  67     uint64_t sector_len;
  68     uint8_t width;
  69     uint8_t be;
  70     uint8_t wcycle; /* if 0, the flash is read normally */
  71     int ro;
  72     uint8_t cmd;
  73     uint8_t status;
  74     uint16_t ident0;
  75     uint16_t ident1;
  76     uint16_t ident2;
  77     uint16_t ident3;
  78     uint8_t cfi_len;
  79     uint8_t cfi_table[0x52];
  80     uint64_t counter;
  81     unsigned int writeblock_size;
  82     QEMUTimer *timer;
  83     MemoryRegion mem;
  84     char *name;
  85     void *storage;
  86 };
  87
  88 static const VMStateDescription vmstate_pflash = {
  89     .name = "pflash_cfi01",
  90     .version_id = 1,
  91     .minimum_version_id = 1,
  92     .fields = (VMStateField[]) {
  93         VMSTATE_UINT8(wcycle, pflash_t),
  94         VMSTATE_UINT8(cmd, pflash_t),
  95         VMSTATE_UINT8(status, pflash_t),
  96         VMSTATE_UINT64(counter, pflash_t),
  97         VMSTATE_END_OF_LIST()
  98     }
  99 };
 100
 101 static void pflash_timer (void *opaque)
 102 {
 103     pflash_t *pfl = opaque;
 104
 105     DPRINTF("%s: command %02x done\n", __func__, pfl->cmd);
 106     /* Reset flash */
 107     pfl->status ^= 0x80;
 108     memory_region_rom_device_set_readable(&pfl->mem, true);
 109     pfl->wcycle = 0;
 110     pfl->cmd = 0;
 111 }
 112
 113 static uint32_t pflash_read (pflash_t *pfl, hwaddr offset,
 114                              int width, int be)
 115 {
 116     hwaddr boff;
 117     uint32_t ret;
 118     uint8_t *p;
 119
 120     ret = -1;
 121     boff = offset & 0xFF; /* why this here ?? */
 122
 123     if (pfl->width == 2)
 124         boff = boff >> 1;
 125     else if (pfl->width == 4)
 126         boff = boff >> 2;
 127
 128 #if 0
 129     DPRINTF("%s: reading offset " TARGET_FMT_plx " under cmd %02x width %d\n",
 130             __func__, offset, pfl->cmd, width);
 131 #endif
 132     switch (pfl->cmd) {
 133     default:
 134         /* This should never happen : reset state & treat it as a read */
 135         DPRINTF("%s: unknown command state: %x\n", __func__, pfl->cmd);
 136         pfl->wcycle = 0;
 137         pfl->cmd = 0;
 138         /* fall through to read code */
 139     case 0x00:
 140         /* Flash area read */
 141         p = pfl->storage;
 142         switch (width) {
 143         case 1:
 144             ret = p[offset];
 145             DPRINTF("%s: data offset " TARGET_FMT_plx " %02x\n",
 146                     __func__, offset, ret);
 147             break;
 148         case 2:
 149             if (be) {
 150                 ret = p[offset] << 8;
 151                 ret |= p[offset + 1];
 152             } else {
 153                 ret = p[offset];
 154                 ret |= p[offset + 1] << 8;
 155             }
 156             DPRINTF("%s: data offset " TARGET_FMT_plx " %04x\n",
 157                     __func__, offset, ret);
 158             break;
 159         case 4:
 160             if (be) {
 161                 ret = p[offset] << 24;
 162                 ret |= p[offset + 1] << 16;
 163                 ret |= p[offset + 2] << 8;
 164                 ret |= p[offset + 3];
 165             } else {
 166                 ret = p[offset];
 167                 ret |= p[offset + 1] << 8;
 168                 ret |= p[offset + 2] << 16;
 169                 ret |= p[offset + 3] << 24;
 170             }
 171             DPRINTF("%s: data offset " TARGET_FMT_plx " %08x\n",
 172                     __func__, offset, ret);
 173             break;
 174         default:
 175             DPRINTF("BUG in %s\n", __func__);
 176         }
 177
 178         break;
 179     case 0x10: /* Single byte program */
 180     case 0x20: /* Block erase */
 181     case 0x28: /* Block erase */
 182     case 0x40: /* single byte program */
 183     case 0x50: /* Clear status register */
 184     case 0x60: /* Block /un)lock */
 185     case 0x70: /* Status Register */
 186     case 0xe8: /* Write block */
 187         /* Status register read */
 188         ret = pfl->status;
 189         DPRINTF("%s: status %x\n", __func__, ret);
 190         break;
 191     case 0x90:
 192         switch (boff) {
 193         case 0:
 194             ret = pfl->ident0 << 8 | pfl->ident1;
 195             DPRINTF("%s: Manufacturer Code %04x\n", __func__, ret);
 196             break;
 197         case 1:
 198             ret = pfl->ident2 << 8 | pfl->ident3;
 199             DPRINTF("%s: Device ID Code %04x\n", __func__, ret);
 200             break;
 201         default:
 202             DPRINTF("%s: Read Device Information boff=%x\n", __func__,
 203                     (unsigned)boff);
 204             ret = 0;
 205             break;
 206         }
 207         break;
 208     case 0x98: /* Query mode */
 209         if (boff > pfl->cfi_len)
 210             ret = 0;
 211         else
 212             ret = pfl->cfi_table[boff];
 213         break;
 214     }
 215     return ret;
 216 }
 217
 218 /* update flash content on disk */
 219 static void pflash_update(pflash_t *pfl, int offset,
 220                           int size)
 221 {
 222     int offset_end;
 223     if (pfl->bs) {
 224         offset_end = offset + size;
 225         /* round to sectors */
 226         offset = offset >> 9;
 227         offset_end = (offset_end + 511) >> 9;
 228         bdrv_write(pfl->bs, offset, pfl->storage + (offset << 9),
 229                    offset_end - offset);
 230     }
 231 }
 232
 233 static inline void pflash_data_write(pflash_t *pfl, hwaddr offset,
 234                                      uint32_t value, int width, int be)
 235 {
 236     uint8_t *p = pfl->storage;
 237
 238     DPRINTF("%s: block write offset " TARGET_FMT_plx
 239             " value %x counter %016" PRIx64 "\n",
 240             __func__, offset, value, pfl->counter);
 241     switch (width) {
 242     case 1:
 243         p[offset] = value;
 244         break;
 245     case 2:
 246         if (be) {
 247             p[offset] = value >> 8;
 248             p[offset + 1] = value;
 249         } else {
 250             p[offset] = value;
 251             p[offset + 1] = value >> 8;
 252         }
 253         break;
 254     case 4:
 255         if (be) {
 256             p[offset] = value >> 24;
 257             p[offset + 1] = value >> 16;
 258             p[offset + 2] = value >> 8;
 259             p[offset + 3] = value;
 260         } else {
 261             p[offset] = value;
 262             p[offset + 1] = value >> 8;
 263             p[offset + 2] = value >> 16;
 264             p[offset + 3] = value >> 24;
 265         }
 266         break;
 267     }
 268
 269 }
 270
 271 static void pflash_write(pflash_t *pfl, hwaddr offset,
 272                          uint32_t value, int width, int be)
 273 {
 274     uint8_t *p;
 275     uint8_t cmd;
 276
 277     cmd = value;
 278
 279     DPRINTF("%s: writing offset " TARGET_FMT_plx " value %08x width %d wcycle 0x%x\n",
 280             __func__, offset, value, width, pfl->wcycle);
 281
 282     if (!pfl->wcycle) {
 283         /* Set the device in I/O access mode */
 284         memory_region_rom_device_set_readable(&pfl->mem, false);
 285     }
 286
 287     switch (pfl->wcycle) {
 288     case 0:
 289         /* read mode */
 290         switch (cmd) {
 291         case 0x00: /* ??? */
 292             goto reset_flash;
 293         case 0x10: /* Single Byte Program */
 294         case 0x40: /* Single Byte Program */
 295             DPRINTF("%s: Single Byte Program\n", __func__);
 296             break;
 297         case 0x20: /* Block erase */
 298             p = pfl->storage;
 299             offset &= ~(pfl->sector_len - 1);
 300
 301             DPRINTF("%s: block erase at " TARGET_FMT_plx " bytes %x\n",
 302                     __func__, offset, (unsigned)pfl->sector_len);
 303
 304             if (!pfl->ro) {
 305                 memset(p + offset, 0xff, pfl->sector_len);
 306                 pflash_update(pfl, offset, pfl->sector_len);
 307             } else {
 308                 pfl->status |= 0x20; /* Block erase error */
 309             }
 310             pfl->status |= 0x80; /* Ready! */
 311             break;
 312         case 0x50: /* Clear status bits */
 313             DPRINTF("%s: Clear status bits\n", __func__);
 314             pfl->status = 0x0;
 315             goto reset_flash;
 316         case 0x60: /* Block (un)lock */
 317             DPRINTF("%s: Block unlock\n", __func__);
 318             break;
 319         case 0x70: /* Status Register */
 320             DPRINTF("%s: Read status register\n", __func__);
 321             pfl->cmd = cmd;
 322             return;
 323         case 0x90: /* Read Device ID */
 324             DPRINTF("%s: Read Device information\n", __func__);
 325             pfl->cmd = cmd;
 326             return;
 327         case 0x98: /* CFI query */
 328             DPRINTF("%s: CFI query\n", __func__);
 329             break;
 330         case 0xe8: /* Write to buffer */
 331             DPRINTF("%s: Write to buffer\n", __func__);
 332             pfl->status |= 0x80; /* Ready! */
 333             break;
 334         case 0xf0: /* Probe for AMD flash */
 335             DPRINTF("%s: Probe for AMD flash\n", __func__);
 336             goto reset_flash;
 337         case 0xff: /* Read array mode */
 338             DPRINTF("%s: Read array mode\n", __func__);
 339             goto reset_flash;
 340         default:
 341             goto error_flash;
 342         }
 343         pfl->wcycle++;
 344         pfl->cmd = cmd;
 345         break;
 346     case 1:
 347         switch (pfl->cmd) {
 348         case 0x10: /* Single Byte Program */
 349         case 0x40: /* Single Byte Program */
 350             DPRINTF("%s: Single Byte Program\n", __func__);
 351             if (!pfl->ro) {
 352                 pflash_data_write(pfl, offset, value, width, be);
 353                 pflash_update(pfl, offset, width);
 354             } else {
 355                 pfl->status |= 0x10; /* Programming error */
 356             }
 357             pfl->status |= 0x80; /* Ready! */
 358             pfl->wcycle = 0;
 359         break;
 360         case 0x20: /* Block erase */
 361         case 0x28:
 362             if (cmd == 0xd0) { /* confirm */
 363                 pfl->wcycle = 0;
 364                 pfl->status |= 0x80;
 365             } else if (cmd == 0xff) { /* read array mode */
 366                 goto reset_flash;
 367             } else
 368                 goto error_flash;
 369
 370             break;
 371         case 0xe8:
 372             DPRINTF("%s: block write of %x bytes\n", __func__, value);
 373             pfl->counter = value;
 374             pfl->wcycle++;
 375             break;
 376         case 0x60:
 377             if (cmd == 0xd0) {
 378                 pfl->wcycle = 0;
 379                 pfl->status |= 0x80;
 380             } else if (cmd == 0x01) {
 381                 pfl->wcycle = 0;
 382                 pfl->status |= 0x80;
 383             } else if (cmd == 0xff) {
 384                 goto reset_flash;
 385             } else {
 386                 DPRINTF("%s: Unknown (un)locking command\n", __func__);
 387                 goto reset_flash;
 388             }
 389             break;
 390         case 0x98:
 391             if (cmd == 0xff) {
 392                 goto reset_flash;
 393             } else {
 394                 DPRINTF("%s: leaving query mode\n", __func__);
 395             }
 396             break;
 397         default:
 398             goto error_flash;
 399         }
 400         break;
 401     case 2:
 402         switch (pfl->cmd) {
 403         case 0xe8: /* Block write */
 404             if (!pfl->ro) {
 405                 pflash_data_write(pfl, offset, value, width, be);
 406             } else {
 407                 pfl->status |= 0x10; /* Programming error */
 408             }
 409
 410             pfl->status |= 0x80;
 411
 412             if (!pfl->counter) {
 413                 hwaddr mask = pfl->writeblock_size - 1;
 414                 mask = ~mask;
 415
 416                 DPRINTF("%s: block write finished\n", __func__);
 417                 pfl->wcycle++;
 418                 if (!pfl->ro) {
 419                     /* Flush the entire write buffer onto backing storage.  */
 420                     pflash_update(pfl, offset & mask, pfl->writeblock_size);
 421                 } else {
 422                     pfl->status |= 0x10; /* Programming error */
 423                 }
 424             }
 425
 426             pfl->counter--;
 427             break;
 428         default:
 429             goto error_flash;
 430         }
 431         break;
 432     case 3: /* Confirm mode */
 433         switch (pfl->cmd) {
 434         case 0xe8: /* Block write */
 435             if (cmd == 0xd0) {
 436                 pfl->wcycle = 0;
 437                 pfl->status |= 0x80;
 438             } else {
 439                 DPRINTF("%s: unknown command for \"write block\"\n", __func__);
 440                 PFLASH_BUG("Write block confirm");
 441                 goto reset_flash;
 442             }
 443             break;
 444         default:
 445             goto error_flash;
 446         }
 447         break;
 448     default:
 449         /* Should never happen */
 450         DPRINTF("%s: invalid write state\n",  __func__);
 451         goto reset_flash;
 452     }
 453     return;
 454
 455  error_flash:
 456     qemu_log_mask(LOG_UNIMP, "%s: Unimplemented flash cmd sequence "
 457                   "(offset " TARGET_FMT_plx ", wcycle 0x%x cmd 0x%x value 0x%x)"
 458                   "\n", __func__, offset, pfl->wcycle, pfl->cmd, value);
 459
 460  reset_flash:
 461     memory_region_rom_device_set_readable(&pfl->mem, true);
 462
 463     pfl->wcycle = 0;
 464     pfl->cmd = 0;
 465 }
 466
 467
 468 static uint32_t pflash_readb_be(void *opaque, hwaddr addr)
 469 {
 470     return pflash_read(opaque, addr, 1, 1);
 471 }
 472
 473 static uint32_t pflash_readb_le(void *opaque, hwaddr addr)
 474 {
 475     return pflash_read(opaque, addr, 1, 0);
 476 }
 477
 478 static uint32_t pflash_readw_be(void *opaque, hwaddr addr)
 479 {
 480     pflash_t *pfl = opaque;
 481
 482     return pflash_read(pfl, addr, 2, 1);
 483 }
 484
 485 static uint32_t pflash_readw_le(void *opaque, hwaddr addr)
 486 {
 487     pflash_t *pfl = opaque;
 488
 489     return pflash_read(pfl, addr, 2, 0);
 490 }
 491
 492 static uint32_t pflash_readl_be(void *opaque, hwaddr addr)
 493 {
 494     pflash_t *pfl = opaque;
 495
 496     return pflash_read(pfl, addr, 4, 1);
 497 }
 498
 499 static uint32_t pflash_readl_le(void *opaque, hwaddr addr)
 500 {
 501     pflash_t *pfl = opaque;
 502
 503     return pflash_read(pfl, addr, 4, 0);
 504 }
 505
 506 static void pflash_writeb_be(void *opaque, hwaddr addr,
 507                              uint32_t value)
 508 {
 509     pflash_write(opaque, addr, value, 1, 1);
 510 }
 511
 512 static void pflash_writeb_le(void *opaque, hwaddr addr,
 513                              uint32_t value)
 514 {
 515     pflash_write(opaque, addr, value, 1, 0);
 516 }
 517
 518 static void pflash_writew_be(void *opaque, hwaddr addr,
 519                              uint32_t value)
 520 {
 521     pflash_t *pfl = opaque;
 522
 523     pflash_write(pfl, addr, value, 2, 1);
 524 }
 525
 526 static void pflash_writew_le(void *opaque, hwaddr addr,
 527                              uint32_t value)
 528 {
 529     pflash_t *pfl = opaque;
 530
 531     pflash_write(pfl, addr, value, 2, 0);
 532 }
 533
 534 static void pflash_writel_be(void *opaque, hwaddr addr,
 535                              uint32_t value)
 536 {
 537     pflash_t *pfl = opaque;
 538
 539     pflash_write(pfl, addr, value, 4, 1);
 540 }
 541
 542 static void pflash_writel_le(void *opaque, hwaddr addr,
 543                              uint32_t value)
 544 {
 545     pflash_t *pfl = opaque;
 546
 547     pflash_write(pfl, addr, value, 4, 0);
 548 }
 549
 550 static const MemoryRegionOps pflash_cfi01_ops_be = {
 551     .old_mmio = {
 552         .read = { pflash_readb_be, pflash_readw_be, pflash_readl_be, },
 553         .write = { pflash_writeb_be, pflash_writew_be, pflash_writel_be, },
 554     },
 555     .endianness = DEVICE_NATIVE_ENDIAN,
 556 };
 557
 558 static const MemoryRegionOps pflash_cfi01_ops_le = {
 559     .old_mmio = {
 560         .read = { pflash_readb_le, pflash_readw_le, pflash_readl_le, },
 561         .write = { pflash_writeb_le, pflash_writew_le, pflash_writel_le, },
 562     },
 563     .endianness = DEVICE_NATIVE_ENDIAN,
 564 };
 565
 566 static int pflash_cfi01_init(SysBusDevice *dev)
 567 {
 568     pflash_t *pfl = FROM_SYSBUS(typeof(*pfl), dev);
 569     uint64_t total_len;
 570     int ret;
 571
 572     total_len = pfl->sector_len * pfl->nb_blocs;
 573
 574     /* XXX: to be fixed */
 575 #if 0
 576     if (total_len != (8 * 1024 * 1024) && total_len != (16 * 1024 * 1024) &&
 577         total_len != (32 * 1024 * 1024) && total_len != (64 * 1024 * 1024))
 578         return NULL;
 579 #endif
 580
 581     memory_region_init_rom_device(
 582         &pfl->mem, pfl->be ? &pflash_cfi01_ops_be : &pflash_cfi01_ops_le, pfl,
 583         pfl->name, total_len);
 584     vmstate_register_ram(&pfl->mem, DEVICE(pfl));
 585     pfl->storage = memory_region_get_ram_ptr(&pfl->mem);
 586     sysbus_init_mmio(dev, &pfl->mem);
 587
 588     if (pfl->bs) {
 589         /* read the initial flash content */
 590         ret = bdrv_read(pfl->bs, 0, pfl->storage, total_len >> 9);
 591
 592         if (ret < 0) {
 593             vmstate_unregister_ram(&pfl->mem, DEVICE(pfl));
 594             memory_region_destroy(&pfl->mem);
 595             return 1;
 596         }
 597     }
 598
 599     if (pfl->bs) {
 600         pfl->ro = bdrv_is_read_only(pfl->bs);
 601     } else {
 602         pfl->ro = 0;
 603     }
 604
 605     pfl->timer = qemu_new_timer_ns(vm_clock, pflash_timer, pfl);
 606     pfl->wcycle = 0;
 607     pfl->cmd = 0;
 608     pfl->status = 0;
 609     /* Hardcoded CFI table */
 610     pfl->cfi_len = 0x52;
 611     /* Standard "QRY" string */
 612     pfl->cfi_table[0x10] = 'Q';
 613     pfl->cfi_table[0x11] = 'R';
 614     pfl->cfi_table[0x12] = 'Y';
 615     /* Command set (Intel) */
 616     pfl->cfi_table[0x13] = 0x01;
 617     pfl->cfi_table[0x14] = 0x00;
 618     /* Primary extended table address (none) */
 619     pfl->cfi_table[0x15] = 0x31;
 620     pfl->cfi_table[0x16] = 0x00;
 621     /* Alternate command set (none) */
 622     pfl->cfi_table[0x17] = 0x00;
 623     pfl->cfi_table[0x18] = 0x00;
 624     /* Alternate extended table (none) */
 625     pfl->cfi_table[0x19] = 0x00;
 626     pfl->cfi_table[0x1A] = 0x00;
 627     /* Vcc min */
 628     pfl->cfi_table[0x1B] = 0x45;
 629     /* Vcc max */
 630     pfl->cfi_table[0x1C] = 0x55;
 631     /* Vpp min (no Vpp pin) */
 632     pfl->cfi_table[0x1D] = 0x00;
 633     /* Vpp max (no Vpp pin) */
 634     pfl->cfi_table[0x1E] = 0x00;
 635     /* Reserved */
 636     pfl->cfi_table[0x1F] = 0x07;
 637     /* Timeout for min size buffer write */
 638     pfl->cfi_table[0x20] = 0x07;
 639     /* Typical timeout for block erase */
 640     pfl->cfi_table[0x21] = 0x0a;
 641     /* Typical timeout for full chip erase (4096 ms) */
 642     pfl->cfi_table[0x22] = 0x00;
 643     /* Reserved */
 644     pfl->cfi_table[0x23] = 0x04;
 645     /* Max timeout for buffer write */
 646     pfl->cfi_table[0x24] = 0x04;
 647     /* Max timeout for block erase */
 648     pfl->cfi_table[0x25] = 0x04;
 649     /* Max timeout for chip erase */
 650     pfl->cfi_table[0x26] = 0x00;
 651     /* Device size */
 652     pfl->cfi_table[0x27] = ctz32(total_len); // + 1;
 653     /* Flash device interface (8 & 16 bits) */
 654     pfl->cfi_table[0x28] = 0x02;
 655     pfl->cfi_table[0x29] = 0x00;
 656     /* Max number of bytes in multi-bytes write */
 657     if (pfl->width == 1) {
 658         pfl->cfi_table[0x2A] = 0x08;
 659     } else {
 660         pfl->cfi_table[0x2A] = 0x0B;
 661     }
 662     pfl->writeblock_size = 1 << pfl->cfi_table[0x2A];
 663
 664     pfl->cfi_table[0x2B] = 0x00;
 665     /* Number of erase block regions (uniform) */
 666     pfl->cfi_table[0x2C] = 0x01;
 667     /* Erase block region 1 */
 668     pfl->cfi_table[0x2D] = pfl->nb_blocs - 1;
 669     pfl->cfi_table[0x2E] = (pfl->nb_blocs - 1) >> 8;
 670     pfl->cfi_table[0x2F] = pfl->sector_len >> 8;
 671     pfl->cfi_table[0x30] = pfl->sector_len >> 16;
 672
 673     /* Extended */
 674     pfl->cfi_table[0x31] = 'P';
 675     pfl->cfi_table[0x32] = 'R';
 676     pfl->cfi_table[0x33] = 'I';
 677
 678     pfl->cfi_table[0x34] = '1';
 679     pfl->cfi_table[0x35] = '0';
 680
 681     pfl->cfi_table[0x36] = 0x00;
 682     pfl->cfi_table[0x37] = 0x00;
 683     pfl->cfi_table[0x38] = 0x00;
 684     pfl->cfi_table[0x39] = 0x00;
 685
 686     pfl->cfi_table[0x3a] = 0x00;
 687
 688     pfl->cfi_table[0x3b] = 0x00;
 689     pfl->cfi_table[0x3c] = 0x00;
 690
 691     pfl->cfi_table[0x3f] = 0x01; /* Number of protection fields */
 692
 693     return 0;
 694 }
 695
 696 static Property pflash_cfi01_properties[] = {
 697     DEFINE_PROP_DRIVE("drive", struct pflash_t, bs),
 698     DEFINE_PROP_UINT32("num-blocks", struct pflash_t, nb_blocs, 0),
 699     DEFINE_PROP_UINT64("sector-length", struct pflash_t, sector_len, 0),
 700     DEFINE_PROP_UINT8("width", struct pflash_t, width, 0),
 701     DEFINE_PROP_UINT8("big-endian", struct pflash_t, be, 0),
 702     DEFINE_PROP_UINT16("id0", struct pflash_t, ident0, 0),
 703     DEFINE_PROP_UINT16("id1", struct pflash_t, ident1, 0),
 704     DEFINE_PROP_UINT16("id2", struct pflash_t, ident2, 0),
 705     DEFINE_PROP_UINT16("id3", struct pflash_t, ident3, 0),
 706     DEFINE_PROP_STRING("name", struct pflash_t, name),
 707     DEFINE_PROP_END_OF_LIST(),
 708 };
 709
 710 static void pflash_cfi01_class_init(ObjectClass *klass, void *data)
 711 {
 712     DeviceClass *dc = DEVICE_CLASS(klass);
 713     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 714
 715     k->init = pflash_cfi01_init;
 716     dc->props = pflash_cfi01_properties;
 717     dc->vmsd = &vmstate_pflash;
 718 }
 719
 720
 721 static const TypeInfo pflash_cfi01_info = {
 722     .name           = "cfi.pflash01",
 723     .parent         = TYPE_SYS_BUS_DEVICE,
 724     .instance_size  = sizeof(struct pflash_t),
 725     .class_init     = pflash_cfi01_class_init,
 726 };
 727
 728 static void pflash_cfi01_register_types(void)
 729 {
 730     type_register_static(&pflash_cfi01_info);
 731 }
 732
 733 type_init(pflash_cfi01_register_types)
 734
 735 pflash_t *pflash_cfi01_register(hwaddr base,
 736                                 DeviceState *qdev, const char *name,
 737                                 hwaddr size,
 738                                 BlockDriverState *bs,
 739                                 uint32_t sector_len, int nb_blocs, int width,
 740                                 uint16_t id0, uint16_t id1,
 741                                 uint16_t id2, uint16_t id3, int be)
 742 {
 743     DeviceState *dev = qdev_create(NULL, "cfi.pflash01");
 744     SysBusDevice *busdev = SYS_BUS_DEVICE(dev);
 745     pflash_t *pfl = (pflash_t *)object_dynamic_cast(OBJECT(dev),
 746                                                     "cfi.pflash01");
 747
 748     if (bs && qdev_prop_set_drive(dev, "drive", bs)) {
 749         abort();
 750     }
 751     qdev_prop_set_uint32(dev, "num-blocks", nb_blocs);
 752     qdev_prop_set_uint64(dev, "sector-length", sector_len);
 753     qdev_prop_set_uint8(dev, "width", width);
 754     qdev_prop_set_uint8(dev, "big-endian", !!be);
 755     qdev_prop_set_uint16(dev, "id0", id0);
 756     qdev_prop_set_uint16(dev, "id1", id1);
 757     qdev_prop_set_uint16(dev, "id2", id2);
 758     qdev_prop_set_uint16(dev, "id3", id3);
 759     qdev_prop_set_string(dev, "name", name);
 760     qdev_init_nofail(dev);
 761
 762     sysbus_mmio_map(busdev, 0, base);
 763     return pfl;
 764 }
 765
 766 MemoryRegion *pflash_cfi01_get_memory(pflash_t *fl)
 767 {
 768     return &fl->mem;
 769 }