1 /* 2 * (C) Copyright 2001 3 * Denis Peter, MPL AG Switzerland 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 /* 9 * SCSI support. 10 */ 11 #include <common.h> 12 #include <command.h> 13 #include <inttypes.h> 14 #include <asm/processor.h> 15 #include <scsi.h> 16 #include <image.h> 17 #include <pci.h> 18 19 #ifdef CONFIG_SCSI_DEV_LIST 20 #define SCSI_DEV_LIST CONFIG_SCSI_DEV_LIST 21 #else 22 #ifdef CONFIG_SCSI_SYM53C8XX 23 #define SCSI_VEND_ID 0x1000 24 #ifndef CONFIG_SCSI_DEV_ID 25 #define SCSI_DEV_ID 0x0001 26 #else 27 #define SCSI_DEV_ID CONFIG_SCSI_DEV_ID 28 #endif 29 #elif defined CONFIG_SATA_ULI5288 30 31 #define SCSI_VEND_ID 0x10b9 32 #define SCSI_DEV_ID 0x5288 33 34 #elif !defined(CONFIG_SCSI_AHCI_PLAT) 35 #error no scsi device defined 36 #endif 37 #define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID} 38 #endif 39 40 #if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT) 41 const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST }; 42 #endif 43 static ccb tempccb; /* temporary scsi command buffer */ 44 45 static unsigned char tempbuff[512]; /* temporary data buffer */ 46 47 static int scsi_max_devs; /* number of highest available scsi device */ 48 49 static int scsi_curr_dev; /* current device */ 50 51 static struct blk_desc scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE]; 52 53 /**************************************************************************************** 54 * scsi_read 55 */ 56 57 /* almost the maximum amount of the scsi_ext command.. */ 58 #define SCSI_MAX_READ_BLK 0xFFFF 59 #define SCSI_LBA48_READ 0xFFFFFFF 60 61 #ifdef CONFIG_SYS_64BIT_LBA 62 void scsi_setup_read16(ccb * pccb, lbaint_t start, unsigned long blocks) 63 { 64 pccb->cmd[0] = SCSI_READ16; 65 pccb->cmd[1] = pccb->lun<<5; 66 pccb->cmd[2] = ((unsigned char) (start >> 56)) & 0xff; 67 pccb->cmd[3] = ((unsigned char) (start >> 48)) & 0xff; 68 pccb->cmd[4] = ((unsigned char) (start >> 40)) & 0xff; 69 pccb->cmd[5] = ((unsigned char) (start >> 32)) & 0xff; 70 pccb->cmd[6] = ((unsigned char) (start >> 24)) & 0xff; 71 pccb->cmd[7] = ((unsigned char) (start >> 16)) & 0xff; 72 pccb->cmd[8] = ((unsigned char) (start >> 8)) & 0xff; 73 pccb->cmd[9] = ((unsigned char) (start)) & 0xff; 74 pccb->cmd[10] = 0; 75 pccb->cmd[11] = ((unsigned char) (blocks >> 24)) & 0xff; 76 pccb->cmd[12] = ((unsigned char) (blocks >> 16)) & 0xff; 77 pccb->cmd[13] = ((unsigned char) (blocks >> 8)) & 0xff; 78 pccb->cmd[14] = (unsigned char) blocks & 0xff; 79 pccb->cmd[15] = 0; 80 pccb->cmdlen = 16; 81 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ 82 debug ("scsi_setup_read16: cmd: %02X %02X " 83 "startblk %02X%02X%02X%02X%02X%02X%02X%02X " 84 "blccnt %02X%02X%02X%02X\n", 85 pccb->cmd[0], pccb->cmd[1], 86 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5], 87 pccb->cmd[6], pccb->cmd[7], pccb->cmd[8], pccb->cmd[9], 88 pccb->cmd[11], pccb->cmd[12], pccb->cmd[13], pccb->cmd[14]); 89 } 90 #endif 91 92 void scsi_setup_read_ext(ccb * pccb, lbaint_t start, unsigned short blocks) 93 { 94 pccb->cmd[0]=SCSI_READ10; 95 pccb->cmd[1]=pccb->lun<<5; 96 pccb->cmd[2]=((unsigned char) (start>>24))&0xff; 97 pccb->cmd[3]=((unsigned char) (start>>16))&0xff; 98 pccb->cmd[4]=((unsigned char) (start>>8))&0xff; 99 pccb->cmd[5]=((unsigned char) (start))&0xff; 100 pccb->cmd[6]=0; 101 pccb->cmd[7]=((unsigned char) (blocks>>8))&0xff; 102 pccb->cmd[8]=(unsigned char) blocks & 0xff; 103 pccb->cmd[6]=0; 104 pccb->cmdlen=10; 105 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ 106 debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n", 107 pccb->cmd[0],pccb->cmd[1], 108 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4],pccb->cmd[5], 109 pccb->cmd[7],pccb->cmd[8]); 110 } 111 112 void scsi_setup_write_ext(ccb *pccb, lbaint_t start, unsigned short blocks) 113 { 114 pccb->cmd[0] = SCSI_WRITE10; 115 pccb->cmd[1] = pccb->lun << 5; 116 pccb->cmd[2] = ((unsigned char) (start>>24)) & 0xff; 117 pccb->cmd[3] = ((unsigned char) (start>>16)) & 0xff; 118 pccb->cmd[4] = ((unsigned char) (start>>8)) & 0xff; 119 pccb->cmd[5] = ((unsigned char) (start)) & 0xff; 120 pccb->cmd[6] = 0; 121 pccb->cmd[7] = ((unsigned char) (blocks>>8)) & 0xff; 122 pccb->cmd[8] = (unsigned char)blocks & 0xff; 123 pccb->cmd[9] = 0; 124 pccb->cmdlen = 10; 125 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ 126 debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n", 127 __func__, 128 pccb->cmd[0], pccb->cmd[1], 129 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5], 130 pccb->cmd[7], pccb->cmd[8]); 131 } 132 133 void scsi_setup_read6(ccb * pccb, lbaint_t start, unsigned short blocks) 134 { 135 pccb->cmd[0]=SCSI_READ6; 136 pccb->cmd[1]=pccb->lun<<5 | (((unsigned char)(start>>16))&0x1f); 137 pccb->cmd[2]=((unsigned char) (start>>8))&0xff; 138 pccb->cmd[3]=((unsigned char) (start))&0xff; 139 pccb->cmd[4]=(unsigned char) blocks & 0xff; 140 pccb->cmd[5]=0; 141 pccb->cmdlen=6; 142 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ 143 debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n", 144 pccb->cmd[0],pccb->cmd[1], 145 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4]); 146 } 147 148 149 void scsi_setup_inquiry(ccb * pccb) 150 { 151 pccb->cmd[0]=SCSI_INQUIRY; 152 pccb->cmd[1]=pccb->lun<<5; 153 pccb->cmd[2]=0; 154 pccb->cmd[3]=0; 155 if(pccb->datalen>255) 156 pccb->cmd[4]=255; 157 else 158 pccb->cmd[4]=(unsigned char)pccb->datalen; 159 pccb->cmd[5]=0; 160 pccb->cmdlen=6; 161 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ 162 } 163 164 static ulong scsi_read(struct blk_desc *block_dev, lbaint_t blknr, 165 lbaint_t blkcnt, void *buffer) 166 { 167 int device = block_dev->devnum; 168 lbaint_t start, blks; 169 uintptr_t buf_addr; 170 unsigned short smallblks = 0; 171 ccb* pccb=(ccb *)&tempccb; 172 device&=0xff; 173 /* Setup device 174 */ 175 pccb->target=scsi_dev_desc[device].target; 176 pccb->lun=scsi_dev_desc[device].lun; 177 buf_addr=(unsigned long)buffer; 178 start=blknr; 179 blks=blkcnt; 180 debug("\nscsi_read: dev %d startblk " LBAF 181 ", blccnt " LBAF " buffer %lx\n", 182 device, start, blks, (unsigned long)buffer); 183 do { 184 pccb->pdata=(unsigned char *)buf_addr; 185 #ifdef CONFIG_SYS_64BIT_LBA 186 if (start > SCSI_LBA48_READ) { 187 unsigned long blocks; 188 blocks = min_t(lbaint_t, blks, SCSI_MAX_READ_BLK); 189 pccb->datalen = scsi_dev_desc[device].blksz * blocks; 190 scsi_setup_read16(pccb, start, blocks); 191 start += blocks; 192 blks -= blocks; 193 } else 194 #endif 195 if (blks > SCSI_MAX_READ_BLK) { 196 pccb->datalen=scsi_dev_desc[device].blksz * SCSI_MAX_READ_BLK; 197 smallblks=SCSI_MAX_READ_BLK; 198 scsi_setup_read_ext(pccb,start,smallblks); 199 start+=SCSI_MAX_READ_BLK; 200 blks-=SCSI_MAX_READ_BLK; 201 } 202 else { 203 pccb->datalen=scsi_dev_desc[device].blksz * blks; 204 smallblks=(unsigned short) blks; 205 scsi_setup_read_ext(pccb,start,smallblks); 206 start+=blks; 207 blks=0; 208 } 209 debug("scsi_read_ext: startblk " LBAF 210 ", blccnt %x buffer %" PRIXPTR "\n", 211 start, smallblks, buf_addr); 212 if (scsi_exec(pccb) != true) { 213 scsi_print_error(pccb); 214 blkcnt-=blks; 215 break; 216 } 217 buf_addr+=pccb->datalen; 218 } while(blks!=0); 219 debug("scsi_read_ext: end startblk " LBAF 220 ", blccnt %x buffer %" PRIXPTR "\n", start, smallblks, buf_addr); 221 return(blkcnt); 222 } 223 224 /******************************************************************************* 225 * scsi_write 226 */ 227 228 /* Almost the maximum amount of the scsi_ext command.. */ 229 #define SCSI_MAX_WRITE_BLK 0xFFFF 230 231 static ulong scsi_write(struct blk_desc *block_dev, lbaint_t blknr, 232 lbaint_t blkcnt, const void *buffer) 233 { 234 int device = block_dev->devnum; 235 lbaint_t start, blks; 236 uintptr_t buf_addr; 237 unsigned short smallblks; 238 ccb* pccb = (ccb *)&tempccb; 239 device &= 0xff; 240 /* Setup device 241 */ 242 pccb->target = scsi_dev_desc[device].target; 243 pccb->lun = scsi_dev_desc[device].lun; 244 buf_addr = (unsigned long)buffer; 245 start = blknr; 246 blks = blkcnt; 247 debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n", 248 __func__, device, start, blks, (unsigned long)buffer); 249 do { 250 pccb->pdata = (unsigned char *)buf_addr; 251 if (blks > SCSI_MAX_WRITE_BLK) { 252 pccb->datalen = (scsi_dev_desc[device].blksz * 253 SCSI_MAX_WRITE_BLK); 254 smallblks = SCSI_MAX_WRITE_BLK; 255 scsi_setup_write_ext(pccb, start, smallblks); 256 start += SCSI_MAX_WRITE_BLK; 257 blks -= SCSI_MAX_WRITE_BLK; 258 } else { 259 pccb->datalen = scsi_dev_desc[device].blksz * blks; 260 smallblks = (unsigned short)blks; 261 scsi_setup_write_ext(pccb, start, smallblks); 262 start += blks; 263 blks = 0; 264 } 265 debug("%s: startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n", 266 __func__, start, smallblks, buf_addr); 267 if (scsi_exec(pccb) != true) { 268 scsi_print_error(pccb); 269 blkcnt -= blks; 270 break; 271 } 272 buf_addr += pccb->datalen; 273 } while (blks != 0); 274 debug("%s: end startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n", 275 __func__, start, smallblks, buf_addr); 276 return blkcnt; 277 } 278 279 int scsi_get_disk_count(void) 280 { 281 return scsi_max_devs; 282 } 283 284 #if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT) 285 void scsi_init(void) 286 { 287 int busdevfunc = -1; 288 int i; 289 /* 290 * Find a device from the list, this driver will support a single 291 * controller. 292 */ 293 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) { 294 /* get PCI Device ID */ 295 #ifdef CONFIG_DM_PCI 296 struct udevice *dev; 297 int ret; 298 299 ret = dm_pci_find_device(scsi_device_list[i].vendor, 300 scsi_device_list[i].device, 0, &dev); 301 if (!ret) { 302 busdevfunc = dm_pci_get_bdf(dev); 303 break; 304 } 305 #else 306 busdevfunc = pci_find_device(scsi_device_list[i].vendor, 307 scsi_device_list[i].device, 308 0); 309 #endif 310 if (busdevfunc != -1) 311 break; 312 } 313 314 if (busdevfunc == -1) { 315 printf("Error: SCSI Controller(s) "); 316 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) { 317 printf("%04X:%04X ", 318 scsi_device_list[i].vendor, 319 scsi_device_list[i].device); 320 } 321 printf("not found\n"); 322 return; 323 } 324 #ifdef DEBUG 325 else { 326 printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n", 327 scsi_device_list[i].vendor, 328 scsi_device_list[i].device, 329 (busdevfunc >> 16) & 0xFF, 330 (busdevfunc >> 11) & 0x1F, 331 (busdevfunc >> 8) & 0x7); 332 } 333 #endif 334 bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI, "ahci"); 335 scsi_low_level_init(busdevfunc); 336 scsi_scan(1); 337 bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI); 338 } 339 #endif 340 341 #ifdef CONFIG_PARTITIONS 342 struct blk_desc *scsi_get_dev(int dev) 343 { 344 return (dev < CONFIG_SYS_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL; 345 } 346 #endif 347 348 #ifndef CONFIG_SPL_BUILD 349 /****************************************************************************** 350 * scsi boot command intepreter. Derived from diskboot 351 */ 352 int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 353 { 354 return common_diskboot(cmdtp, "scsi", argc, argv); 355 } 356 357 /********************************************************************************* 358 * scsi command intepreter 359 */ 360 int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 361 { 362 switch (argc) { 363 case 0: 364 case 1: 365 return CMD_RET_USAGE; 366 367 case 2: 368 if (strncmp(argv[1],"res",3) == 0) { 369 printf("\nReset SCSI\n"); 370 scsi_bus_reset(); 371 scsi_scan(1); 372 return 0; 373 } 374 if (strncmp(argv[1],"inf",3) == 0) { 375 int i; 376 for (i=0; i<CONFIG_SYS_SCSI_MAX_DEVICE; ++i) { 377 if(scsi_dev_desc[i].type==DEV_TYPE_UNKNOWN) 378 continue; /* list only known devices */ 379 printf ("SCSI dev. %d: ", i); 380 dev_print(&scsi_dev_desc[i]); 381 } 382 return 0; 383 } 384 if (strncmp(argv[1],"dev",3) == 0) { 385 if ((scsi_curr_dev < 0) || (scsi_curr_dev >= CONFIG_SYS_SCSI_MAX_DEVICE)) { 386 printf("\nno SCSI devices available\n"); 387 return 1; 388 } 389 printf ("\n Device %d: ", scsi_curr_dev); 390 dev_print(&scsi_dev_desc[scsi_curr_dev]); 391 return 0; 392 } 393 if (strncmp(argv[1],"scan",4) == 0) { 394 scsi_scan(1); 395 return 0; 396 } 397 if (strncmp(argv[1],"part",4) == 0) { 398 int dev, ok; 399 for (ok=0, dev=0; dev<CONFIG_SYS_SCSI_MAX_DEVICE; ++dev) { 400 if (scsi_dev_desc[dev].type!=DEV_TYPE_UNKNOWN) { 401 ok++; 402 if (dev) 403 printf("\n"); 404 debug ("print_part of %x\n",dev); 405 part_print(&scsi_dev_desc[dev]); 406 } 407 } 408 if (!ok) 409 printf("\nno SCSI devices available\n"); 410 return 1; 411 } 412 return CMD_RET_USAGE; 413 case 3: 414 if (strncmp(argv[1],"dev",3) == 0) { 415 int dev = (int)simple_strtoul(argv[2], NULL, 10); 416 printf ("\nSCSI device %d: ", dev); 417 if (dev >= CONFIG_SYS_SCSI_MAX_DEVICE) { 418 printf("unknown device\n"); 419 return 1; 420 } 421 printf ("\n Device %d: ", dev); 422 dev_print(&scsi_dev_desc[dev]); 423 if(scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) { 424 return 1; 425 } 426 scsi_curr_dev = dev; 427 printf("... is now current device\n"); 428 return 0; 429 } 430 if (strncmp(argv[1],"part",4) == 0) { 431 int dev = (int)simple_strtoul(argv[2], NULL, 10); 432 if(scsi_dev_desc[dev].type != DEV_TYPE_UNKNOWN) { 433 part_print(&scsi_dev_desc[dev]); 434 } 435 else { 436 printf ("\nSCSI device %d not available\n", dev); 437 } 438 return 1; 439 } 440 return CMD_RET_USAGE; 441 default: 442 /* at least 4 args */ 443 if (strcmp(argv[1],"read") == 0) { 444 ulong addr = simple_strtoul(argv[2], NULL, 16); 445 ulong blk = simple_strtoul(argv[3], NULL, 16); 446 ulong cnt = simple_strtoul(argv[4], NULL, 16); 447 ulong n; 448 printf ("\nSCSI read: device %d block # %ld, count %ld ... ", 449 scsi_curr_dev, blk, cnt); 450 n = scsi_read(&scsi_dev_desc[scsi_curr_dev], 451 blk, cnt, (ulong *)addr); 452 printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR"); 453 return 0; 454 } else if (strcmp(argv[1], "write") == 0) { 455 ulong addr = simple_strtoul(argv[2], NULL, 16); 456 ulong blk = simple_strtoul(argv[3], NULL, 16); 457 ulong cnt = simple_strtoul(argv[4], NULL, 16); 458 ulong n; 459 printf("\nSCSI write: device %d block # %ld, " 460 "count %ld ... ", 461 scsi_curr_dev, blk, cnt); 462 n = scsi_write(&scsi_dev_desc[scsi_curr_dev], 463 blk, cnt, (ulong *)addr); 464 printf("%ld blocks written: %s\n", n, 465 (n == cnt) ? "OK" : "ERROR"); 466 return 0; 467 } 468 } /* switch */ 469 return CMD_RET_USAGE; 470 } 471 472 U_BOOT_CMD( 473 scsi, 5, 1, do_scsi, 474 "SCSI sub-system", 475 "reset - reset SCSI controller\n" 476 "scsi info - show available SCSI devices\n" 477 "scsi scan - (re-)scan SCSI bus\n" 478 "scsi device [dev] - show or set current device\n" 479 "scsi part [dev] - print partition table of one or all SCSI devices\n" 480 "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n" 481 " to memory address `addr'\n" 482 "scsi write addr blk# cnt - write `cnt' blocks starting at block\n" 483 " `blk#' from memory address `addr'" 484 ); 485 486 U_BOOT_CMD( 487 scsiboot, 3, 1, do_scsiboot, 488 "boot from SCSI device", 489 "loadAddr dev:part" 490 ); 491 #endif 492 493 /* copy src to dest, skipping leading and trailing blanks 494 * and null terminate the string 495 */ 496 void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len) 497 { 498 int start,end; 499 500 start=0; 501 while(start<len) { 502 if(src[start]!=' ') 503 break; 504 start++; 505 } 506 end=len-1; 507 while(end>start) { 508 if(src[end]!=' ') 509 break; 510 end--; 511 } 512 for( ; start<=end; start++) { 513 *dest++=src[start]; 514 } 515 *dest='\0'; 516 } 517 518 519 /* Trim trailing blanks, and NUL-terminate string 520 */ 521 void scsi_trim_trail (unsigned char *str, unsigned int len) 522 { 523 unsigned char *p = str + len - 1; 524 525 while (len-- > 0) { 526 *p-- = '\0'; 527 if (*p != ' ') { 528 return; 529 } 530 } 531 } 532 533 int scsi_read_capacity(ccb *pccb, lbaint_t *capacity, unsigned long *blksz) 534 { 535 *capacity = 0; 536 537 memset(pccb->cmd, 0, sizeof(pccb->cmd)); 538 pccb->cmd[0] = SCSI_RD_CAPAC10; 539 pccb->cmd[1] = pccb->lun << 5; 540 pccb->cmdlen = 10; 541 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ 542 543 pccb->datalen = 8; 544 if (scsi_exec(pccb) != true) 545 return 1; 546 547 *capacity = ((lbaint_t)pccb->pdata[0] << 24) | 548 ((lbaint_t)pccb->pdata[1] << 16) | 549 ((lbaint_t)pccb->pdata[2] << 8) | 550 ((lbaint_t)pccb->pdata[3]); 551 552 if (*capacity != 0xffffffff) { 553 /* Read capacity (10) was sufficient for this drive. */ 554 *blksz = ((unsigned long)pccb->pdata[4] << 24) | 555 ((unsigned long)pccb->pdata[5] << 16) | 556 ((unsigned long)pccb->pdata[6] << 8) | 557 ((unsigned long)pccb->pdata[7]); 558 return 0; 559 } 560 561 /* Read capacity (10) was insufficient. Use read capacity (16). */ 562 563 memset(pccb->cmd, 0, sizeof(pccb->cmd)); 564 pccb->cmd[0] = SCSI_RD_CAPAC16; 565 pccb->cmd[1] = 0x10; 566 pccb->cmdlen = 16; 567 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ 568 569 pccb->datalen = 16; 570 if (scsi_exec(pccb) != true) 571 return 1; 572 573 *capacity = ((uint64_t)pccb->pdata[0] << 56) | 574 ((uint64_t)pccb->pdata[1] << 48) | 575 ((uint64_t)pccb->pdata[2] << 40) | 576 ((uint64_t)pccb->pdata[3] << 32) | 577 ((uint64_t)pccb->pdata[4] << 24) | 578 ((uint64_t)pccb->pdata[5] << 16) | 579 ((uint64_t)pccb->pdata[6] << 8) | 580 ((uint64_t)pccb->pdata[7]); 581 582 *blksz = ((uint64_t)pccb->pdata[8] << 56) | 583 ((uint64_t)pccb->pdata[9] << 48) | 584 ((uint64_t)pccb->pdata[10] << 40) | 585 ((uint64_t)pccb->pdata[11] << 32) | 586 ((uint64_t)pccb->pdata[12] << 24) | 587 ((uint64_t)pccb->pdata[13] << 16) | 588 ((uint64_t)pccb->pdata[14] << 8) | 589 ((uint64_t)pccb->pdata[15]); 590 591 return 0; 592 } 593 594 595 /************************************************************************************ 596 * Some setup (fill-in) routines 597 */ 598 void scsi_setup_test_unit_ready(ccb * pccb) 599 { 600 pccb->cmd[0]=SCSI_TST_U_RDY; 601 pccb->cmd[1]=pccb->lun<<5; 602 pccb->cmd[2]=0; 603 pccb->cmd[3]=0; 604 pccb->cmd[4]=0; 605 pccb->cmd[5]=0; 606 pccb->cmdlen=6; 607 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ 608 } 609 610 /********************************************************************************* 611 * (re)-scan the scsi bus and reports scsi device info 612 * to the user if mode = 1 613 */ 614 void scsi_scan(int mode) 615 { 616 unsigned char i,perq,modi,lun; 617 lbaint_t capacity; 618 unsigned long blksz; 619 ccb* pccb=(ccb *)&tempccb; 620 621 if(mode==1) { 622 printf("scanning bus for devices...\n"); 623 } 624 for(i=0;i<CONFIG_SYS_SCSI_MAX_DEVICE;i++) { 625 scsi_dev_desc[i].target=0xff; 626 scsi_dev_desc[i].lun=0xff; 627 scsi_dev_desc[i].lba=0; 628 scsi_dev_desc[i].blksz=0; 629 scsi_dev_desc[i].log2blksz = 630 LOG2_INVALID(typeof(scsi_dev_desc[i].log2blksz)); 631 scsi_dev_desc[i].type=DEV_TYPE_UNKNOWN; 632 scsi_dev_desc[i].vendor[0]=0; 633 scsi_dev_desc[i].product[0]=0; 634 scsi_dev_desc[i].revision[0]=0; 635 scsi_dev_desc[i].removable = false; 636 scsi_dev_desc[i].if_type=IF_TYPE_SCSI; 637 scsi_dev_desc[i].devnum = i; 638 scsi_dev_desc[i].part_type=PART_TYPE_UNKNOWN; 639 scsi_dev_desc[i].block_read=scsi_read; 640 scsi_dev_desc[i].block_write = scsi_write; 641 } 642 scsi_max_devs=0; 643 for(i=0;i<CONFIG_SYS_SCSI_MAX_SCSI_ID;i++) { 644 pccb->target=i; 645 for(lun=0;lun<CONFIG_SYS_SCSI_MAX_LUN;lun++) { 646 pccb->lun=lun; 647 pccb->pdata=(unsigned char *)&tempbuff; 648 pccb->datalen=512; 649 scsi_setup_inquiry(pccb); 650 if (scsi_exec(pccb) != true) { 651 if(pccb->contr_stat==SCSI_SEL_TIME_OUT) { 652 debug ("Selection timeout ID %d\n",pccb->target); 653 continue; /* selection timeout => assuming no device present */ 654 } 655 scsi_print_error(pccb); 656 continue; 657 } 658 perq=tempbuff[0]; 659 modi=tempbuff[1]; 660 if((perq & 0x1f)==0x1f) { 661 continue; /* skip unknown devices */ 662 } 663 if((modi&0x80)==0x80) /* drive is removable */ 664 scsi_dev_desc[scsi_max_devs].removable=true; 665 /* get info for this device */ 666 scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].vendor[0], 667 &tempbuff[8], 8); 668 scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].product[0], 669 &tempbuff[16], 16); 670 scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].revision[0], 671 &tempbuff[32], 4); 672 scsi_dev_desc[scsi_max_devs].target=pccb->target; 673 scsi_dev_desc[scsi_max_devs].lun=pccb->lun; 674 675 pccb->datalen=0; 676 scsi_setup_test_unit_ready(pccb); 677 if (scsi_exec(pccb) != true) { 678 if (scsi_dev_desc[scsi_max_devs].removable == true) { 679 scsi_dev_desc[scsi_max_devs].type=perq; 680 goto removable; 681 } 682 scsi_print_error(pccb); 683 continue; 684 } 685 if (scsi_read_capacity(pccb, &capacity, &blksz)) { 686 scsi_print_error(pccb); 687 continue; 688 } 689 scsi_dev_desc[scsi_max_devs].lba=capacity; 690 scsi_dev_desc[scsi_max_devs].blksz=blksz; 691 scsi_dev_desc[scsi_max_devs].log2blksz = 692 LOG2(scsi_dev_desc[scsi_max_devs].blksz); 693 scsi_dev_desc[scsi_max_devs].type=perq; 694 part_init(&scsi_dev_desc[scsi_max_devs]); 695 removable: 696 if(mode==1) { 697 printf (" Device %d: ", scsi_max_devs); 698 dev_print(&scsi_dev_desc[scsi_max_devs]); 699 } /* if mode */ 700 scsi_max_devs++; 701 } /* next LUN */ 702 } 703 if(scsi_max_devs>0) 704 scsi_curr_dev=0; 705 else 706 scsi_curr_dev = -1; 707 708 printf("Found %d device(s).\n", scsi_max_devs); 709 #ifndef CONFIG_SPL_BUILD 710 setenv_ulong("scsidevs", scsi_max_devs); 711 #endif 712 } 713