1 /* 2 * CFI parallel flash with AMD command set emulation 3 * 4 * Copyright (c) 2005 Jocelyn Mayer 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 /* 21 * For now, this code can emulate flashes of 1, 2 or 4 bytes width. 22 * Supported commands/modes are: 23 * - flash read 24 * - flash write 25 * - flash ID read 26 * - sector erase 27 * - chip erase 28 * - unlock bypass command 29 * - CFI queries 30 * 31 * It does not support flash interleaving. 32 * It does not implement boot blocs with reduced size 33 * It does not implement software data protection as found in many real chips 34 * It does not implement erase suspend/resume commands 35 * It does not implement multiple sectors erase 36 */ 37 38 #include "hw/hw.h" 39 #include "hw/block/flash.h" 40 #include "qemu/timer.h" 41 #include "sysemu/block-backend.h" 42 #include "exec/address-spaces.h" 43 #include "qemu/host-utils.h" 44 #include "hw/sysbus.h" 45 46 //#define PFLASH_DEBUG 47 #ifdef PFLASH_DEBUG 48 #define DPRINTF(fmt, ...) \ 49 do { \ 50 fprintf(stderr, "PFLASH: " fmt , ## __VA_ARGS__); \ 51 } while (0) 52 #else 53 #define DPRINTF(fmt, ...) do { } while (0) 54 #endif 55 56 #define PFLASH_LAZY_ROMD_THRESHOLD 42 57 58 #define TYPE_CFI_PFLASH02 "cfi.pflash02" 59 #define CFI_PFLASH02(obj) OBJECT_CHECK(pflash_t, (obj), TYPE_CFI_PFLASH02) 60 61 struct pflash_t { 62 /*< private >*/ 63 SysBusDevice parent_obj; 64 /*< public >*/ 65 66 BlockBackend *blk; 67 uint32_t sector_len; 68 uint32_t nb_blocs; 69 uint32_t chip_len; 70 uint8_t mappings; 71 uint8_t width; 72 uint8_t be; 73 int wcycle; /* if 0, the flash is read normally */ 74 int bypass; 75 int ro; 76 uint8_t cmd; 77 uint8_t status; 78 /* FIXME: implement array device properties */ 79 uint16_t ident0; 80 uint16_t ident1; 81 uint16_t ident2; 82 uint16_t ident3; 83 uint16_t unlock_addr0; 84 uint16_t unlock_addr1; 85 uint8_t cfi_len; 86 uint8_t cfi_table[0x52]; 87 QEMUTimer *timer; 88 /* The device replicates the flash memory across its memory space. Emulate 89 * that by having a container (.mem) filled with an array of aliases 90 * (.mem_mappings) pointing to the flash memory (.orig_mem). 91 */ 92 MemoryRegion mem; 93 MemoryRegion *mem_mappings; /* array; one per mapping */ 94 MemoryRegion orig_mem; 95 int rom_mode; 96 int read_counter; /* used for lazy switch-back to rom mode */ 97 char *name; 98 void *storage; 99 }; 100 101 /* 102 * Set up replicated mappings of the same region. 103 */ 104 static void pflash_setup_mappings(pflash_t *pfl) 105 { 106 unsigned i; 107 hwaddr size = memory_region_size(&pfl->orig_mem); 108 109 memory_region_init(&pfl->mem, OBJECT(pfl), "pflash", pfl->mappings * size); 110 pfl->mem_mappings = g_new(MemoryRegion, pfl->mappings); 111 for (i = 0; i < pfl->mappings; ++i) { 112 memory_region_init_alias(&pfl->mem_mappings[i], OBJECT(pfl), 113 "pflash-alias", &pfl->orig_mem, 0, size); 114 memory_region_add_subregion(&pfl->mem, i * size, &pfl->mem_mappings[i]); 115 } 116 } 117 118 static void pflash_register_memory(pflash_t *pfl, int rom_mode) 119 { 120 memory_region_rom_device_set_romd(&pfl->orig_mem, rom_mode); 121 pfl->rom_mode = rom_mode; 122 } 123 124 static void pflash_timer (void *opaque) 125 { 126 pflash_t *pfl = opaque; 127 128 DPRINTF("%s: command %02x done\n", __func__, pfl->cmd); 129 /* Reset flash */ 130 pfl->status ^= 0x80; 131 if (pfl->bypass) { 132 pfl->wcycle = 2; 133 } else { 134 pflash_register_memory(pfl, 1); 135 pfl->wcycle = 0; 136 } 137 pfl->cmd = 0; 138 } 139 140 static uint32_t pflash_read (pflash_t *pfl, hwaddr offset, 141 int width, int be) 142 { 143 hwaddr boff; 144 uint32_t ret; 145 uint8_t *p; 146 147 DPRINTF("%s: offset " TARGET_FMT_plx "\n", __func__, offset); 148 ret = -1; 149 /* Lazy reset to ROMD mode after a certain amount of read accesses */ 150 if (!pfl->rom_mode && pfl->wcycle == 0 && 151 ++pfl->read_counter > PFLASH_LAZY_ROMD_THRESHOLD) { 152 pflash_register_memory(pfl, 1); 153 } 154 offset &= pfl->chip_len - 1; 155 boff = offset & 0xFF; 156 if (pfl->width == 2) 157 boff = boff >> 1; 158 else if (pfl->width == 4) 159 boff = boff >> 2; 160 switch (pfl->cmd) { 161 default: 162 /* This should never happen : reset state & treat it as a read*/ 163 DPRINTF("%s: unknown command state: %x\n", __func__, pfl->cmd); 164 pfl->wcycle = 0; 165 pfl->cmd = 0; 166 /* fall through to the read code */ 167 case 0x80: 168 /* We accept reads during second unlock sequence... */ 169 case 0x00: 170 flash_read: 171 /* Flash area read */ 172 p = pfl->storage; 173 switch (width) { 174 case 1: 175 ret = p[offset]; 176 // DPRINTF("%s: data offset %08x %02x\n", __func__, offset, ret); 177 break; 178 case 2: 179 if (be) { 180 ret = p[offset] << 8; 181 ret |= p[offset + 1]; 182 } else { 183 ret = p[offset]; 184 ret |= p[offset + 1] << 8; 185 } 186 // DPRINTF("%s: data offset %08x %04x\n", __func__, offset, ret); 187 break; 188 case 4: 189 if (be) { 190 ret = p[offset] << 24; 191 ret |= p[offset + 1] << 16; 192 ret |= p[offset + 2] << 8; 193 ret |= p[offset + 3]; 194 } else { 195 ret = p[offset]; 196 ret |= p[offset + 1] << 8; 197 ret |= p[offset + 2] << 16; 198 ret |= p[offset + 3] << 24; 199 } 200 // DPRINTF("%s: data offset %08x %08x\n", __func__, offset, ret); 201 break; 202 } 203 break; 204 case 0x90: 205 /* flash ID read */ 206 switch (boff) { 207 case 0x00: 208 case 0x01: 209 ret = boff & 0x01 ? pfl->ident1 : pfl->ident0; 210 break; 211 case 0x02: 212 ret = 0x00; /* Pretend all sectors are unprotected */ 213 break; 214 case 0x0E: 215 case 0x0F: 216 ret = boff & 0x01 ? pfl->ident3 : pfl->ident2; 217 if (ret == (uint8_t)-1) { 218 goto flash_read; 219 } 220 break; 221 default: 222 goto flash_read; 223 } 224 DPRINTF("%s: ID " TARGET_FMT_plx " %x\n", __func__, boff, ret); 225 break; 226 case 0xA0: 227 case 0x10: 228 case 0x30: 229 /* Status register read */ 230 ret = pfl->status; 231 DPRINTF("%s: status %x\n", __func__, ret); 232 /* Toggle bit 6 */ 233 pfl->status ^= 0x40; 234 break; 235 case 0x98: 236 /* CFI query mode */ 237 if (boff > pfl->cfi_len) 238 ret = 0; 239 else 240 ret = pfl->cfi_table[boff]; 241 break; 242 } 243 244 return ret; 245 } 246 247 /* update flash content on disk */ 248 static void pflash_update(pflash_t *pfl, int offset, 249 int size) 250 { 251 int offset_end; 252 if (pfl->blk) { 253 offset_end = offset + size; 254 /* round to sectors */ 255 offset = offset >> 9; 256 offset_end = (offset_end + 511) >> 9; 257 blk_write(pfl->blk, offset, pfl->storage + (offset << 9), 258 offset_end - offset); 259 } 260 } 261 262 static void pflash_write (pflash_t *pfl, hwaddr offset, 263 uint32_t value, int width, int be) 264 { 265 hwaddr boff; 266 uint8_t *p; 267 uint8_t cmd; 268 269 cmd = value; 270 if (pfl->cmd != 0xA0 && cmd == 0xF0) { 271 #if 0 272 DPRINTF("%s: flash reset asked (%02x %02x)\n", 273 __func__, pfl->cmd, cmd); 274 #endif 275 goto reset_flash; 276 } 277 DPRINTF("%s: offset " TARGET_FMT_plx " %08x %d %d\n", __func__, 278 offset, value, width, pfl->wcycle); 279 offset &= pfl->chip_len - 1; 280 281 DPRINTF("%s: offset " TARGET_FMT_plx " %08x %d\n", __func__, 282 offset, value, width); 283 boff = offset & (pfl->sector_len - 1); 284 if (pfl->width == 2) 285 boff = boff >> 1; 286 else if (pfl->width == 4) 287 boff = boff >> 2; 288 switch (pfl->wcycle) { 289 case 0: 290 /* Set the device in I/O access mode if required */ 291 if (pfl->rom_mode) 292 pflash_register_memory(pfl, 0); 293 pfl->read_counter = 0; 294 /* We're in read mode */ 295 check_unlock0: 296 if (boff == 0x55 && cmd == 0x98) { 297 enter_CFI_mode: 298 /* Enter CFI query mode */ 299 pfl->wcycle = 7; 300 pfl->cmd = 0x98; 301 return; 302 } 303 if (boff != pfl->unlock_addr0 || cmd != 0xAA) { 304 DPRINTF("%s: unlock0 failed " TARGET_FMT_plx " %02x %04x\n", 305 __func__, boff, cmd, pfl->unlock_addr0); 306 goto reset_flash; 307 } 308 DPRINTF("%s: unlock sequence started\n", __func__); 309 break; 310 case 1: 311 /* We started an unlock sequence */ 312 check_unlock1: 313 if (boff != pfl->unlock_addr1 || cmd != 0x55) { 314 DPRINTF("%s: unlock1 failed " TARGET_FMT_plx " %02x\n", __func__, 315 boff, cmd); 316 goto reset_flash; 317 } 318 DPRINTF("%s: unlock sequence done\n", __func__); 319 break; 320 case 2: 321 /* We finished an unlock sequence */ 322 if (!pfl->bypass && boff != pfl->unlock_addr0) { 323 DPRINTF("%s: command failed " TARGET_FMT_plx " %02x\n", __func__, 324 boff, cmd); 325 goto reset_flash; 326 } 327 switch (cmd) { 328 case 0x20: 329 pfl->bypass = 1; 330 goto do_bypass; 331 case 0x80: 332 case 0x90: 333 case 0xA0: 334 pfl->cmd = cmd; 335 DPRINTF("%s: starting command %02x\n", __func__, cmd); 336 break; 337 default: 338 DPRINTF("%s: unknown command %02x\n", __func__, cmd); 339 goto reset_flash; 340 } 341 break; 342 case 3: 343 switch (pfl->cmd) { 344 case 0x80: 345 /* We need another unlock sequence */ 346 goto check_unlock0; 347 case 0xA0: 348 DPRINTF("%s: write data offset " TARGET_FMT_plx " %08x %d\n", 349 __func__, offset, value, width); 350 p = pfl->storage; 351 if (!pfl->ro) { 352 switch (width) { 353 case 1: 354 p[offset] &= value; 355 pflash_update(pfl, offset, 1); 356 break; 357 case 2: 358 if (be) { 359 p[offset] &= value >> 8; 360 p[offset + 1] &= value; 361 } else { 362 p[offset] &= value; 363 p[offset + 1] &= value >> 8; 364 } 365 pflash_update(pfl, offset, 2); 366 break; 367 case 4: 368 if (be) { 369 p[offset] &= value >> 24; 370 p[offset + 1] &= value >> 16; 371 p[offset + 2] &= value >> 8; 372 p[offset + 3] &= value; 373 } else { 374 p[offset] &= value; 375 p[offset + 1] &= value >> 8; 376 p[offset + 2] &= value >> 16; 377 p[offset + 3] &= value >> 24; 378 } 379 pflash_update(pfl, offset, 4); 380 break; 381 } 382 } 383 pfl->status = 0x00 | ~(value & 0x80); 384 /* Let's pretend write is immediate */ 385 if (pfl->bypass) 386 goto do_bypass; 387 goto reset_flash; 388 case 0x90: 389 if (pfl->bypass && cmd == 0x00) { 390 /* Unlock bypass reset */ 391 goto reset_flash; 392 } 393 /* We can enter CFI query mode from autoselect mode */ 394 if (boff == 0x55 && cmd == 0x98) 395 goto enter_CFI_mode; 396 /* No break here */ 397 default: 398 DPRINTF("%s: invalid write for command %02x\n", 399 __func__, pfl->cmd); 400 goto reset_flash; 401 } 402 case 4: 403 switch (pfl->cmd) { 404 case 0xA0: 405 /* Ignore writes while flash data write is occurring */ 406 /* As we suppose write is immediate, this should never happen */ 407 return; 408 case 0x80: 409 goto check_unlock1; 410 default: 411 /* Should never happen */ 412 DPRINTF("%s: invalid command state %02x (wc 4)\n", 413 __func__, pfl->cmd); 414 goto reset_flash; 415 } 416 break; 417 case 5: 418 switch (cmd) { 419 case 0x10: 420 if (boff != pfl->unlock_addr0) { 421 DPRINTF("%s: chip erase: invalid address " TARGET_FMT_plx "\n", 422 __func__, offset); 423 goto reset_flash; 424 } 425 /* Chip erase */ 426 DPRINTF("%s: start chip erase\n", __func__); 427 if (!pfl->ro) { 428 memset(pfl->storage, 0xFF, pfl->chip_len); 429 pflash_update(pfl, 0, pfl->chip_len); 430 } 431 pfl->status = 0x00; 432 /* Let's wait 5 seconds before chip erase is done */ 433 timer_mod(pfl->timer, 434 qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + (get_ticks_per_sec() * 5)); 435 break; 436 case 0x30: 437 /* Sector erase */ 438 p = pfl->storage; 439 offset &= ~(pfl->sector_len - 1); 440 DPRINTF("%s: start sector erase at " TARGET_FMT_plx "\n", __func__, 441 offset); 442 if (!pfl->ro) { 443 memset(p + offset, 0xFF, pfl->sector_len); 444 pflash_update(pfl, offset, pfl->sector_len); 445 } 446 pfl->status = 0x00; 447 /* Let's wait 1/2 second before sector erase is done */ 448 timer_mod(pfl->timer, 449 qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + (get_ticks_per_sec() / 2)); 450 break; 451 default: 452 DPRINTF("%s: invalid command %02x (wc 5)\n", __func__, cmd); 453 goto reset_flash; 454 } 455 pfl->cmd = cmd; 456 break; 457 case 6: 458 switch (pfl->cmd) { 459 case 0x10: 460 /* Ignore writes during chip erase */ 461 return; 462 case 0x30: 463 /* Ignore writes during sector erase */ 464 return; 465 default: 466 /* Should never happen */ 467 DPRINTF("%s: invalid command state %02x (wc 6)\n", 468 __func__, pfl->cmd); 469 goto reset_flash; 470 } 471 break; 472 case 7: /* Special value for CFI queries */ 473 DPRINTF("%s: invalid write in CFI query mode\n", __func__); 474 goto reset_flash; 475 default: 476 /* Should never happen */ 477 DPRINTF("%s: invalid write state (wc 7)\n", __func__); 478 goto reset_flash; 479 } 480 pfl->wcycle++; 481 482 return; 483 484 /* Reset flash */ 485 reset_flash: 486 pfl->bypass = 0; 487 pfl->wcycle = 0; 488 pfl->cmd = 0; 489 return; 490 491 do_bypass: 492 pfl->wcycle = 2; 493 pfl->cmd = 0; 494 } 495 496 497 static uint32_t pflash_readb_be(void *opaque, hwaddr addr) 498 { 499 return pflash_read(opaque, addr, 1, 1); 500 } 501 502 static uint32_t pflash_readb_le(void *opaque, hwaddr addr) 503 { 504 return pflash_read(opaque, addr, 1, 0); 505 } 506 507 static uint32_t pflash_readw_be(void *opaque, hwaddr addr) 508 { 509 pflash_t *pfl = opaque; 510 511 return pflash_read(pfl, addr, 2, 1); 512 } 513 514 static uint32_t pflash_readw_le(void *opaque, hwaddr addr) 515 { 516 pflash_t *pfl = opaque; 517 518 return pflash_read(pfl, addr, 2, 0); 519 } 520 521 static uint32_t pflash_readl_be(void *opaque, hwaddr addr) 522 { 523 pflash_t *pfl = opaque; 524 525 return pflash_read(pfl, addr, 4, 1); 526 } 527 528 static uint32_t pflash_readl_le(void *opaque, hwaddr addr) 529 { 530 pflash_t *pfl = opaque; 531 532 return pflash_read(pfl, addr, 4, 0); 533 } 534 535 static void pflash_writeb_be(void *opaque, hwaddr addr, 536 uint32_t value) 537 { 538 pflash_write(opaque, addr, value, 1, 1); 539 } 540 541 static void pflash_writeb_le(void *opaque, hwaddr addr, 542 uint32_t value) 543 { 544 pflash_write(opaque, addr, value, 1, 0); 545 } 546 547 static void pflash_writew_be(void *opaque, hwaddr addr, 548 uint32_t value) 549 { 550 pflash_t *pfl = opaque; 551 552 pflash_write(pfl, addr, value, 2, 1); 553 } 554 555 static void pflash_writew_le(void *opaque, hwaddr addr, 556 uint32_t value) 557 { 558 pflash_t *pfl = opaque; 559 560 pflash_write(pfl, addr, value, 2, 0); 561 } 562 563 static void pflash_writel_be(void *opaque, hwaddr addr, 564 uint32_t value) 565 { 566 pflash_t *pfl = opaque; 567 568 pflash_write(pfl, addr, value, 4, 1); 569 } 570 571 static void pflash_writel_le(void *opaque, hwaddr addr, 572 uint32_t value) 573 { 574 pflash_t *pfl = opaque; 575 576 pflash_write(pfl, addr, value, 4, 0); 577 } 578 579 static const MemoryRegionOps pflash_cfi02_ops_be = { 580 .old_mmio = { 581 .read = { pflash_readb_be, pflash_readw_be, pflash_readl_be, }, 582 .write = { pflash_writeb_be, pflash_writew_be, pflash_writel_be, }, 583 }, 584 .endianness = DEVICE_NATIVE_ENDIAN, 585 }; 586 587 static const MemoryRegionOps pflash_cfi02_ops_le = { 588 .old_mmio = { 589 .read = { pflash_readb_le, pflash_readw_le, pflash_readl_le, }, 590 .write = { pflash_writeb_le, pflash_writew_le, pflash_writel_le, }, 591 }, 592 .endianness = DEVICE_NATIVE_ENDIAN, 593 }; 594 595 static void pflash_cfi02_realize(DeviceState *dev, Error **errp) 596 { 597 pflash_t *pfl = CFI_PFLASH02(dev); 598 uint32_t chip_len; 599 int ret; 600 Error *local_err = NULL; 601 602 chip_len = pfl->sector_len * pfl->nb_blocs; 603 /* XXX: to be fixed */ 604 #if 0 605 if (total_len != (8 * 1024 * 1024) && total_len != (16 * 1024 * 1024) && 606 total_len != (32 * 1024 * 1024) && total_len != (64 * 1024 * 1024)) 607 return NULL; 608 #endif 609 610 memory_region_init_rom_device(&pfl->orig_mem, OBJECT(pfl), pfl->be ? 611 &pflash_cfi02_ops_be : &pflash_cfi02_ops_le, 612 pfl, pfl->name, chip_len, &local_err); 613 if (local_err) { 614 error_propagate(errp, local_err); 615 return; 616 } 617 618 vmstate_register_ram(&pfl->orig_mem, DEVICE(pfl)); 619 pfl->storage = memory_region_get_ram_ptr(&pfl->orig_mem); 620 pfl->chip_len = chip_len; 621 if (pfl->blk) { 622 /* read the initial flash content */ 623 ret = blk_read(pfl->blk, 0, pfl->storage, chip_len >> 9); 624 if (ret < 0) { 625 vmstate_unregister_ram(&pfl->orig_mem, DEVICE(pfl)); 626 error_setg(errp, "failed to read the initial flash content"); 627 return; 628 } 629 } 630 631 pflash_setup_mappings(pfl); 632 pfl->rom_mode = 1; 633 sysbus_init_mmio(SYS_BUS_DEVICE(dev), &pfl->mem); 634 635 if (pfl->blk) { 636 pfl->ro = blk_is_read_only(pfl->blk); 637 } else { 638 pfl->ro = 0; 639 } 640 641 pfl->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, pflash_timer, pfl); 642 pfl->wcycle = 0; 643 pfl->cmd = 0; 644 pfl->status = 0; 645 /* Hardcoded CFI table (mostly from SG29 Spansion flash) */ 646 pfl->cfi_len = 0x52; 647 /* Standard "QRY" string */ 648 pfl->cfi_table[0x10] = 'Q'; 649 pfl->cfi_table[0x11] = 'R'; 650 pfl->cfi_table[0x12] = 'Y'; 651 /* Command set (AMD/Fujitsu) */ 652 pfl->cfi_table[0x13] = 0x02; 653 pfl->cfi_table[0x14] = 0x00; 654 /* Primary extended table address */ 655 pfl->cfi_table[0x15] = 0x31; 656 pfl->cfi_table[0x16] = 0x00; 657 /* Alternate command set (none) */ 658 pfl->cfi_table[0x17] = 0x00; 659 pfl->cfi_table[0x18] = 0x00; 660 /* Alternate extended table (none) */ 661 pfl->cfi_table[0x19] = 0x00; 662 pfl->cfi_table[0x1A] = 0x00; 663 /* Vcc min */ 664 pfl->cfi_table[0x1B] = 0x27; 665 /* Vcc max */ 666 pfl->cfi_table[0x1C] = 0x36; 667 /* Vpp min (no Vpp pin) */ 668 pfl->cfi_table[0x1D] = 0x00; 669 /* Vpp max (no Vpp pin) */ 670 pfl->cfi_table[0x1E] = 0x00; 671 /* Reserved */ 672 pfl->cfi_table[0x1F] = 0x07; 673 /* Timeout for min size buffer write (NA) */ 674 pfl->cfi_table[0x20] = 0x00; 675 /* Typical timeout for block erase (512 ms) */ 676 pfl->cfi_table[0x21] = 0x09; 677 /* Typical timeout for full chip erase (4096 ms) */ 678 pfl->cfi_table[0x22] = 0x0C; 679 /* Reserved */ 680 pfl->cfi_table[0x23] = 0x01; 681 /* Max timeout for buffer write (NA) */ 682 pfl->cfi_table[0x24] = 0x00; 683 /* Max timeout for block erase */ 684 pfl->cfi_table[0x25] = 0x0A; 685 /* Max timeout for chip erase */ 686 pfl->cfi_table[0x26] = 0x0D; 687 /* Device size */ 688 pfl->cfi_table[0x27] = ctz32(chip_len); 689 /* Flash device interface (8 & 16 bits) */ 690 pfl->cfi_table[0x28] = 0x02; 691 pfl->cfi_table[0x29] = 0x00; 692 /* Max number of bytes in multi-bytes write */ 693 /* XXX: disable buffered write as it's not supported */ 694 // pfl->cfi_table[0x2A] = 0x05; 695 pfl->cfi_table[0x2A] = 0x00; 696 pfl->cfi_table[0x2B] = 0x00; 697 /* Number of erase block regions (uniform) */ 698 pfl->cfi_table[0x2C] = 0x01; 699 /* Erase block region 1 */ 700 pfl->cfi_table[0x2D] = pfl->nb_blocs - 1; 701 pfl->cfi_table[0x2E] = (pfl->nb_blocs - 1) >> 8; 702 pfl->cfi_table[0x2F] = pfl->sector_len >> 8; 703 pfl->cfi_table[0x30] = pfl->sector_len >> 16; 704 705 /* Extended */ 706 pfl->cfi_table[0x31] = 'P'; 707 pfl->cfi_table[0x32] = 'R'; 708 pfl->cfi_table[0x33] = 'I'; 709 710 pfl->cfi_table[0x34] = '1'; 711 pfl->cfi_table[0x35] = '0'; 712 713 pfl->cfi_table[0x36] = 0x00; 714 pfl->cfi_table[0x37] = 0x00; 715 pfl->cfi_table[0x38] = 0x00; 716 pfl->cfi_table[0x39] = 0x00; 717 718 pfl->cfi_table[0x3a] = 0x00; 719 720 pfl->cfi_table[0x3b] = 0x00; 721 pfl->cfi_table[0x3c] = 0x00; 722 } 723 724 static Property pflash_cfi02_properties[] = { 725 DEFINE_PROP_DRIVE("drive", struct pflash_t, blk), 726 DEFINE_PROP_UINT32("num-blocks", struct pflash_t, nb_blocs, 0), 727 DEFINE_PROP_UINT32("sector-length", struct pflash_t, sector_len, 0), 728 DEFINE_PROP_UINT8("width", struct pflash_t, width, 0), 729 DEFINE_PROP_UINT8("mappings", struct pflash_t, mappings, 0), 730 DEFINE_PROP_UINT8("big-endian", struct pflash_t, be, 0), 731 DEFINE_PROP_UINT16("id0", struct pflash_t, ident0, 0), 732 DEFINE_PROP_UINT16("id1", struct pflash_t, ident1, 0), 733 DEFINE_PROP_UINT16("id2", struct pflash_t, ident2, 0), 734 DEFINE_PROP_UINT16("id3", struct pflash_t, ident3, 0), 735 DEFINE_PROP_UINT16("unlock-addr0", struct pflash_t, unlock_addr0, 0), 736 DEFINE_PROP_UINT16("unlock-addr1", struct pflash_t, unlock_addr1, 0), 737 DEFINE_PROP_STRING("name", struct pflash_t, name), 738 DEFINE_PROP_END_OF_LIST(), 739 }; 740 741 static void pflash_cfi02_class_init(ObjectClass *klass, void *data) 742 { 743 DeviceClass *dc = DEVICE_CLASS(klass); 744 745 dc->realize = pflash_cfi02_realize; 746 dc->props = pflash_cfi02_properties; 747 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 748 } 749 750 static const TypeInfo pflash_cfi02_info = { 751 .name = TYPE_CFI_PFLASH02, 752 .parent = TYPE_SYS_BUS_DEVICE, 753 .instance_size = sizeof(struct pflash_t), 754 .class_init = pflash_cfi02_class_init, 755 }; 756 757 static void pflash_cfi02_register_types(void) 758 { 759 type_register_static(&pflash_cfi02_info); 760 } 761 762 type_init(pflash_cfi02_register_types) 763 764 pflash_t *pflash_cfi02_register(hwaddr base, 765 DeviceState *qdev, const char *name, 766 hwaddr size, 767 BlockBackend *blk, uint32_t sector_len, 768 int nb_blocs, int nb_mappings, int width, 769 uint16_t id0, uint16_t id1, 770 uint16_t id2, uint16_t id3, 771 uint16_t unlock_addr0, uint16_t unlock_addr1, 772 int be) 773 { 774 DeviceState *dev = qdev_create(NULL, TYPE_CFI_PFLASH02); 775 776 if (blk) { 777 qdev_prop_set_drive(dev, "drive", blk, &error_abort); 778 } 779 qdev_prop_set_uint32(dev, "num-blocks", nb_blocs); 780 qdev_prop_set_uint32(dev, "sector-length", sector_len); 781 qdev_prop_set_uint8(dev, "width", width); 782 qdev_prop_set_uint8(dev, "mappings", nb_mappings); 783 qdev_prop_set_uint8(dev, "big-endian", !!be); 784 qdev_prop_set_uint16(dev, "id0", id0); 785 qdev_prop_set_uint16(dev, "id1", id1); 786 qdev_prop_set_uint16(dev, "id2", id2); 787 qdev_prop_set_uint16(dev, "id3", id3); 788 qdev_prop_set_uint16(dev, "unlock-addr0", unlock_addr0); 789 qdev_prop_set_uint16(dev, "unlock-addr1", unlock_addr1); 790 qdev_prop_set_string(dev, "name", name); 791 qdev_init_nofail(dev); 792 793 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, base); 794 return CFI_PFLASH02(dev); 795 } 796