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 block_dev_desc_t scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE]; 52 53 /******************************************************************************** 54 * forward declerations of some Setup Routines 55 */ 56 void scsi_setup_test_unit_ready(ccb * pccb); 57 void scsi_setup_read6(ccb * pccb, lbaint_t start, unsigned short blocks); 58 void scsi_setup_read_ext(ccb * pccb, lbaint_t start, unsigned short blocks); 59 void scsi_setup_read16(ccb * pccb, lbaint_t start, unsigned long blocks); 60 61 static void scsi_setup_write_ext(ccb *pccb, lbaint_t start, 62 unsigned short blocks); 63 void scsi_setup_inquiry(ccb * pccb); 64 void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len); 65 66 67 static int scsi_read_capacity(ccb *pccb, lbaint_t *capacity, 68 unsigned long *blksz); 69 static ulong scsi_read(block_dev_desc_t *block_dev, lbaint_t blknr, 70 lbaint_t blkcnt, void *buffer); 71 static ulong scsi_write(block_dev_desc_t *block_dev, lbaint_t blknr, 72 lbaint_t blkcnt, const void *buffer); 73 74 75 /********************************************************************************* 76 * (re)-scan the scsi bus and reports scsi device info 77 * to the user if mode = 1 78 */ 79 void scsi_scan(int mode) 80 { 81 unsigned char i,perq,modi,lun; 82 lbaint_t capacity; 83 unsigned long blksz; 84 ccb* pccb=(ccb *)&tempccb; 85 86 if(mode==1) { 87 printf("scanning bus for devices...\n"); 88 } 89 for(i=0;i<CONFIG_SYS_SCSI_MAX_DEVICE;i++) { 90 scsi_dev_desc[i].target=0xff; 91 scsi_dev_desc[i].lun=0xff; 92 scsi_dev_desc[i].lba=0; 93 scsi_dev_desc[i].blksz=0; 94 scsi_dev_desc[i].log2blksz = 95 LOG2_INVALID(typeof(scsi_dev_desc[i].log2blksz)); 96 scsi_dev_desc[i].type=DEV_TYPE_UNKNOWN; 97 scsi_dev_desc[i].vendor[0]=0; 98 scsi_dev_desc[i].product[0]=0; 99 scsi_dev_desc[i].revision[0]=0; 100 scsi_dev_desc[i].removable = false; 101 scsi_dev_desc[i].if_type=IF_TYPE_SCSI; 102 scsi_dev_desc[i].dev=i; 103 scsi_dev_desc[i].part_type=PART_TYPE_UNKNOWN; 104 scsi_dev_desc[i].block_read=scsi_read; 105 scsi_dev_desc[i].block_write = scsi_write; 106 } 107 scsi_max_devs=0; 108 for(i=0;i<CONFIG_SYS_SCSI_MAX_SCSI_ID;i++) { 109 pccb->target=i; 110 for(lun=0;lun<CONFIG_SYS_SCSI_MAX_LUN;lun++) { 111 pccb->lun=lun; 112 pccb->pdata=(unsigned char *)&tempbuff; 113 pccb->datalen=512; 114 scsi_setup_inquiry(pccb); 115 if (scsi_exec(pccb) != true) { 116 if(pccb->contr_stat==SCSI_SEL_TIME_OUT) { 117 debug ("Selection timeout ID %d\n",pccb->target); 118 continue; /* selection timeout => assuming no device present */ 119 } 120 scsi_print_error(pccb); 121 continue; 122 } 123 perq=tempbuff[0]; 124 modi=tempbuff[1]; 125 if((perq & 0x1f)==0x1f) { 126 continue; /* skip unknown devices */ 127 } 128 if((modi&0x80)==0x80) /* drive is removable */ 129 scsi_dev_desc[scsi_max_devs].removable=true; 130 /* get info for this device */ 131 scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].vendor[0], 132 &tempbuff[8], 8); 133 scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].product[0], 134 &tempbuff[16], 16); 135 scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].revision[0], 136 &tempbuff[32], 4); 137 scsi_dev_desc[scsi_max_devs].target=pccb->target; 138 scsi_dev_desc[scsi_max_devs].lun=pccb->lun; 139 140 pccb->datalen=0; 141 scsi_setup_test_unit_ready(pccb); 142 if (scsi_exec(pccb) != true) { 143 if (scsi_dev_desc[scsi_max_devs].removable == true) { 144 scsi_dev_desc[scsi_max_devs].type=perq; 145 goto removable; 146 } 147 scsi_print_error(pccb); 148 continue; 149 } 150 if (scsi_read_capacity(pccb, &capacity, &blksz)) { 151 scsi_print_error(pccb); 152 continue; 153 } 154 scsi_dev_desc[scsi_max_devs].lba=capacity; 155 scsi_dev_desc[scsi_max_devs].blksz=blksz; 156 scsi_dev_desc[scsi_max_devs].log2blksz = 157 LOG2(scsi_dev_desc[scsi_max_devs].blksz); 158 scsi_dev_desc[scsi_max_devs].type=perq; 159 init_part(&scsi_dev_desc[scsi_max_devs]); 160 removable: 161 if(mode==1) { 162 printf (" Device %d: ", scsi_max_devs); 163 dev_print(&scsi_dev_desc[scsi_max_devs]); 164 } /* if mode */ 165 scsi_max_devs++; 166 } /* next LUN */ 167 } 168 if(scsi_max_devs>0) 169 scsi_curr_dev=0; 170 else 171 scsi_curr_dev = -1; 172 173 printf("Found %d device(s).\n", scsi_max_devs); 174 #ifndef CONFIG_SPL_BUILD 175 setenv_ulong("scsidevs", scsi_max_devs); 176 #endif 177 } 178 179 int scsi_get_disk_count(void) 180 { 181 return scsi_max_devs; 182 } 183 184 #if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT) 185 void scsi_init(void) 186 { 187 int busdevfunc = -1; 188 int i; 189 /* 190 * Find a device from the list, this driver will support a single 191 * controller. 192 */ 193 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) { 194 /* get PCI Device ID */ 195 #ifdef CONFIG_DM_PCI 196 struct udevice *dev; 197 int ret; 198 199 ret = dm_pci_find_device(scsi_device_list[i].vendor, 200 scsi_device_list[i].device, 0, &dev); 201 if (!ret) { 202 busdevfunc = dm_pci_get_bdf(dev); 203 break; 204 } 205 #else 206 busdevfunc = pci_find_device(scsi_device_list[i].vendor, 207 scsi_device_list[i].device, 208 0); 209 #endif 210 if (busdevfunc != -1) 211 break; 212 } 213 214 if (busdevfunc == -1) { 215 printf("Error: SCSI Controller(s) "); 216 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) { 217 printf("%04X:%04X ", 218 scsi_device_list[i].vendor, 219 scsi_device_list[i].device); 220 } 221 printf("not found\n"); 222 return; 223 } 224 #ifdef DEBUG 225 else { 226 printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n", 227 scsi_device_list[i].vendor, 228 scsi_device_list[i].device, 229 (busdevfunc >> 16) & 0xFF, 230 (busdevfunc >> 11) & 0x1F, 231 (busdevfunc >> 8) & 0x7); 232 } 233 #endif 234 bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI, "ahci"); 235 scsi_low_level_init(busdevfunc); 236 scsi_scan(1); 237 bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI); 238 } 239 #endif 240 241 #ifdef CONFIG_PARTITIONS 242 block_dev_desc_t * scsi_get_dev(int dev) 243 { 244 return (dev < CONFIG_SYS_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL; 245 } 246 #endif 247 248 /****************************************************************************** 249 * scsi boot command intepreter. Derived from diskboot 250 */ 251 int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 252 { 253 return common_diskboot(cmdtp, "scsi", argc, argv); 254 } 255 256 /********************************************************************************* 257 * scsi command intepreter 258 */ 259 int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 260 { 261 switch (argc) { 262 case 0: 263 case 1: 264 return CMD_RET_USAGE; 265 266 case 2: 267 if (strncmp(argv[1],"res",3) == 0) { 268 printf("\nReset SCSI\n"); 269 scsi_bus_reset(); 270 scsi_scan(1); 271 return 0; 272 } 273 if (strncmp(argv[1],"inf",3) == 0) { 274 int i; 275 for (i=0; i<CONFIG_SYS_SCSI_MAX_DEVICE; ++i) { 276 if(scsi_dev_desc[i].type==DEV_TYPE_UNKNOWN) 277 continue; /* list only known devices */ 278 printf ("SCSI dev. %d: ", i); 279 dev_print(&scsi_dev_desc[i]); 280 } 281 return 0; 282 } 283 if (strncmp(argv[1],"dev",3) == 0) { 284 if ((scsi_curr_dev < 0) || (scsi_curr_dev >= CONFIG_SYS_SCSI_MAX_DEVICE)) { 285 printf("\nno SCSI devices available\n"); 286 return 1; 287 } 288 printf ("\n Device %d: ", scsi_curr_dev); 289 dev_print(&scsi_dev_desc[scsi_curr_dev]); 290 return 0; 291 } 292 if (strncmp(argv[1],"scan",4) == 0) { 293 scsi_scan(1); 294 return 0; 295 } 296 if (strncmp(argv[1],"part",4) == 0) { 297 int dev, ok; 298 for (ok=0, dev=0; dev<CONFIG_SYS_SCSI_MAX_DEVICE; ++dev) { 299 if (scsi_dev_desc[dev].type!=DEV_TYPE_UNKNOWN) { 300 ok++; 301 if (dev) 302 printf("\n"); 303 debug ("print_part of %x\n",dev); 304 print_part(&scsi_dev_desc[dev]); 305 } 306 } 307 if (!ok) 308 printf("\nno SCSI devices available\n"); 309 return 1; 310 } 311 return CMD_RET_USAGE; 312 case 3: 313 if (strncmp(argv[1],"dev",3) == 0) { 314 int dev = (int)simple_strtoul(argv[2], NULL, 10); 315 printf ("\nSCSI device %d: ", dev); 316 if (dev >= CONFIG_SYS_SCSI_MAX_DEVICE) { 317 printf("unknown device\n"); 318 return 1; 319 } 320 printf ("\n Device %d: ", dev); 321 dev_print(&scsi_dev_desc[dev]); 322 if(scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) { 323 return 1; 324 } 325 scsi_curr_dev = dev; 326 printf("... is now current device\n"); 327 return 0; 328 } 329 if (strncmp(argv[1],"part",4) == 0) { 330 int dev = (int)simple_strtoul(argv[2], NULL, 10); 331 if(scsi_dev_desc[dev].type != DEV_TYPE_UNKNOWN) { 332 print_part(&scsi_dev_desc[dev]); 333 } 334 else { 335 printf ("\nSCSI device %d not available\n", dev); 336 } 337 return 1; 338 } 339 return CMD_RET_USAGE; 340 default: 341 /* at least 4 args */ 342 if (strcmp(argv[1],"read") == 0) { 343 ulong addr = simple_strtoul(argv[2], NULL, 16); 344 ulong blk = simple_strtoul(argv[3], NULL, 16); 345 ulong cnt = simple_strtoul(argv[4], NULL, 16); 346 ulong n; 347 printf ("\nSCSI read: device %d block # %ld, count %ld ... ", 348 scsi_curr_dev, blk, cnt); 349 n = scsi_read(&scsi_dev_desc[scsi_curr_dev], 350 blk, cnt, (ulong *)addr); 351 printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR"); 352 return 0; 353 } else if (strcmp(argv[1], "write") == 0) { 354 ulong addr = simple_strtoul(argv[2], NULL, 16); 355 ulong blk = simple_strtoul(argv[3], NULL, 16); 356 ulong cnt = simple_strtoul(argv[4], NULL, 16); 357 ulong n; 358 printf("\nSCSI write: device %d block # %ld, " 359 "count %ld ... ", 360 scsi_curr_dev, blk, cnt); 361 n = scsi_write(&scsi_dev_desc[scsi_curr_dev], 362 blk, cnt, (ulong *)addr); 363 printf("%ld blocks written: %s\n", n, 364 (n == cnt) ? "OK" : "ERROR"); 365 return 0; 366 } 367 } /* switch */ 368 return CMD_RET_USAGE; 369 } 370 371 /**************************************************************************************** 372 * scsi_read 373 */ 374 375 /* almost the maximum amount of the scsi_ext command.. */ 376 #define SCSI_MAX_READ_BLK 0xFFFF 377 #define SCSI_LBA48_READ 0xFFFFFFF 378 379 static ulong scsi_read(block_dev_desc_t *block_dev, lbaint_t blknr, 380 lbaint_t blkcnt, void *buffer) 381 { 382 int device = block_dev->dev; 383 lbaint_t start, blks; 384 uintptr_t buf_addr; 385 unsigned short smallblks = 0; 386 ccb* pccb=(ccb *)&tempccb; 387 device&=0xff; 388 /* Setup device 389 */ 390 pccb->target=scsi_dev_desc[device].target; 391 pccb->lun=scsi_dev_desc[device].lun; 392 buf_addr=(unsigned long)buffer; 393 start=blknr; 394 blks=blkcnt; 395 debug("\nscsi_read: dev %d startblk " LBAF 396 ", blccnt " LBAF " buffer %lx\n", 397 device, start, blks, (unsigned long)buffer); 398 do { 399 pccb->pdata=(unsigned char *)buf_addr; 400 #ifdef CONFIG_SYS_64BIT_LBA 401 if (start > SCSI_LBA48_READ) { 402 unsigned long blocks; 403 blocks = min_t(lbaint_t, blks, SCSI_MAX_READ_BLK); 404 pccb->datalen = scsi_dev_desc[device].blksz * blocks; 405 scsi_setup_read16(pccb, start, blocks); 406 start += blocks; 407 blks -= blocks; 408 } else 409 #endif 410 if (blks > SCSI_MAX_READ_BLK) { 411 pccb->datalen=scsi_dev_desc[device].blksz * SCSI_MAX_READ_BLK; 412 smallblks=SCSI_MAX_READ_BLK; 413 scsi_setup_read_ext(pccb,start,smallblks); 414 start+=SCSI_MAX_READ_BLK; 415 blks-=SCSI_MAX_READ_BLK; 416 } 417 else { 418 pccb->datalen=scsi_dev_desc[device].blksz * blks; 419 smallblks=(unsigned short) blks; 420 scsi_setup_read_ext(pccb,start,smallblks); 421 start+=blks; 422 blks=0; 423 } 424 debug("scsi_read_ext: startblk " LBAF 425 ", blccnt %x buffer %" PRIXPTR "\n", 426 start, smallblks, buf_addr); 427 if (scsi_exec(pccb) != true) { 428 scsi_print_error(pccb); 429 blkcnt-=blks; 430 break; 431 } 432 buf_addr+=pccb->datalen; 433 } while(blks!=0); 434 debug("scsi_read_ext: end startblk " LBAF 435 ", blccnt %x buffer %" PRIXPTR "\n", start, smallblks, buf_addr); 436 return(blkcnt); 437 } 438 439 /******************************************************************************* 440 * scsi_write 441 */ 442 443 /* Almost the maximum amount of the scsi_ext command.. */ 444 #define SCSI_MAX_WRITE_BLK 0xFFFF 445 446 static ulong scsi_write(block_dev_desc_t *block_dev, lbaint_t blknr, 447 lbaint_t blkcnt, const void *buffer) 448 { 449 int device = block_dev->dev; 450 lbaint_t start, blks; 451 uintptr_t buf_addr; 452 unsigned short smallblks; 453 ccb* pccb = (ccb *)&tempccb; 454 device &= 0xff; 455 /* Setup device 456 */ 457 pccb->target = scsi_dev_desc[device].target; 458 pccb->lun = scsi_dev_desc[device].lun; 459 buf_addr = (unsigned long)buffer; 460 start = blknr; 461 blks = blkcnt; 462 debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n", 463 __func__, device, start, blks, (unsigned long)buffer); 464 do { 465 pccb->pdata = (unsigned char *)buf_addr; 466 if (blks > SCSI_MAX_WRITE_BLK) { 467 pccb->datalen = (scsi_dev_desc[device].blksz * 468 SCSI_MAX_WRITE_BLK); 469 smallblks = SCSI_MAX_WRITE_BLK; 470 scsi_setup_write_ext(pccb, start, smallblks); 471 start += SCSI_MAX_WRITE_BLK; 472 blks -= SCSI_MAX_WRITE_BLK; 473 } else { 474 pccb->datalen = scsi_dev_desc[device].blksz * blks; 475 smallblks = (unsigned short)blks; 476 scsi_setup_write_ext(pccb, start, smallblks); 477 start += blks; 478 blks = 0; 479 } 480 debug("%s: startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n", 481 __func__, start, smallblks, buf_addr); 482 if (scsi_exec(pccb) != true) { 483 scsi_print_error(pccb); 484 blkcnt -= blks; 485 break; 486 } 487 buf_addr += pccb->datalen; 488 } while (blks != 0); 489 debug("%s: end startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n", 490 __func__, start, smallblks, buf_addr); 491 return blkcnt; 492 } 493 494 /* copy src to dest, skipping leading and trailing blanks 495 * and null terminate the string 496 */ 497 void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len) 498 { 499 int start,end; 500 501 start=0; 502 while(start<len) { 503 if(src[start]!=' ') 504 break; 505 start++; 506 } 507 end=len-1; 508 while(end>start) { 509 if(src[end]!=' ') 510 break; 511 end--; 512 } 513 for( ; start<=end; start++) { 514 *dest++=src[start]; 515 } 516 *dest='\0'; 517 } 518 519 520 /* Trim trailing blanks, and NUL-terminate string 521 */ 522 void scsi_trim_trail (unsigned char *str, unsigned int len) 523 { 524 unsigned char *p = str + len - 1; 525 526 while (len-- > 0) { 527 *p-- = '\0'; 528 if (*p != ' ') { 529 return; 530 } 531 } 532 } 533 534 int scsi_read_capacity(ccb *pccb, lbaint_t *capacity, unsigned long *blksz) 535 { 536 *capacity = 0; 537 538 memset(pccb->cmd, 0, sizeof(pccb->cmd)); 539 pccb->cmd[0] = SCSI_RD_CAPAC10; 540 pccb->cmd[1] = pccb->lun << 5; 541 pccb->cmdlen = 10; 542 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ 543 544 pccb->datalen = 8; 545 if (scsi_exec(pccb) != true) 546 return 1; 547 548 *capacity = ((lbaint_t)pccb->pdata[0] << 24) | 549 ((lbaint_t)pccb->pdata[1] << 16) | 550 ((lbaint_t)pccb->pdata[2] << 8) | 551 ((lbaint_t)pccb->pdata[3]); 552 553 if (*capacity != 0xffffffff) { 554 /* Read capacity (10) was sufficient for this drive. */ 555 *blksz = ((unsigned long)pccb->pdata[4] << 24) | 556 ((unsigned long)pccb->pdata[5] << 16) | 557 ((unsigned long)pccb->pdata[6] << 8) | 558 ((unsigned long)pccb->pdata[7]); 559 return 0; 560 } 561 562 /* Read capacity (10) was insufficient. Use read capacity (16). */ 563 564 memset(pccb->cmd, 0, sizeof(pccb->cmd)); 565 pccb->cmd[0] = SCSI_RD_CAPAC16; 566 pccb->cmd[1] = 0x10; 567 pccb->cmdlen = 16; 568 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ 569 570 pccb->datalen = 16; 571 if (scsi_exec(pccb) != true) 572 return 1; 573 574 *capacity = ((uint64_t)pccb->pdata[0] << 56) | 575 ((uint64_t)pccb->pdata[1] << 48) | 576 ((uint64_t)pccb->pdata[2] << 40) | 577 ((uint64_t)pccb->pdata[3] << 32) | 578 ((uint64_t)pccb->pdata[4] << 24) | 579 ((uint64_t)pccb->pdata[5] << 16) | 580 ((uint64_t)pccb->pdata[6] << 8) | 581 ((uint64_t)pccb->pdata[7]); 582 583 *blksz = ((uint64_t)pccb->pdata[8] << 56) | 584 ((uint64_t)pccb->pdata[9] << 48) | 585 ((uint64_t)pccb->pdata[10] << 40) | 586 ((uint64_t)pccb->pdata[11] << 32) | 587 ((uint64_t)pccb->pdata[12] << 24) | 588 ((uint64_t)pccb->pdata[13] << 16) | 589 ((uint64_t)pccb->pdata[14] << 8) | 590 ((uint64_t)pccb->pdata[15]); 591 592 return 0; 593 } 594 595 596 /************************************************************************************ 597 * Some setup (fill-in) routines 598 */ 599 void scsi_setup_test_unit_ready(ccb * pccb) 600 { 601 pccb->cmd[0]=SCSI_TST_U_RDY; 602 pccb->cmd[1]=pccb->lun<<5; 603 pccb->cmd[2]=0; 604 pccb->cmd[3]=0; 605 pccb->cmd[4]=0; 606 pccb->cmd[5]=0; 607 pccb->cmdlen=6; 608 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ 609 } 610 611 #ifdef CONFIG_SYS_64BIT_LBA 612 void scsi_setup_read16(ccb * pccb, lbaint_t start, unsigned long blocks) 613 { 614 pccb->cmd[0] = SCSI_READ16; 615 pccb->cmd[1] = pccb->lun<<5; 616 pccb->cmd[2] = ((unsigned char) (start >> 56)) & 0xff; 617 pccb->cmd[3] = ((unsigned char) (start >> 48)) & 0xff; 618 pccb->cmd[4] = ((unsigned char) (start >> 40)) & 0xff; 619 pccb->cmd[5] = ((unsigned char) (start >> 32)) & 0xff; 620 pccb->cmd[6] = ((unsigned char) (start >> 24)) & 0xff; 621 pccb->cmd[7] = ((unsigned char) (start >> 16)) & 0xff; 622 pccb->cmd[8] = ((unsigned char) (start >> 8)) & 0xff; 623 pccb->cmd[9] = ((unsigned char) (start)) & 0xff; 624 pccb->cmd[10] = 0; 625 pccb->cmd[11] = ((unsigned char) (blocks >> 24)) & 0xff; 626 pccb->cmd[12] = ((unsigned char) (blocks >> 16)) & 0xff; 627 pccb->cmd[13] = ((unsigned char) (blocks >> 8)) & 0xff; 628 pccb->cmd[14] = (unsigned char) blocks & 0xff; 629 pccb->cmd[15] = 0; 630 pccb->cmdlen = 16; 631 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ 632 debug ("scsi_setup_read16: cmd: %02X %02X " 633 "startblk %02X%02X%02X%02X%02X%02X%02X%02X " 634 "blccnt %02X%02X%02X%02X\n", 635 pccb->cmd[0], pccb->cmd[1], 636 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5], 637 pccb->cmd[6], pccb->cmd[7], pccb->cmd[8], pccb->cmd[9], 638 pccb->cmd[11], pccb->cmd[12], pccb->cmd[13], pccb->cmd[14]); 639 } 640 #endif 641 642 void scsi_setup_read_ext(ccb * pccb, lbaint_t start, unsigned short blocks) 643 { 644 pccb->cmd[0]=SCSI_READ10; 645 pccb->cmd[1]=pccb->lun<<5; 646 pccb->cmd[2]=((unsigned char) (start>>24))&0xff; 647 pccb->cmd[3]=((unsigned char) (start>>16))&0xff; 648 pccb->cmd[4]=((unsigned char) (start>>8))&0xff; 649 pccb->cmd[5]=((unsigned char) (start))&0xff; 650 pccb->cmd[6]=0; 651 pccb->cmd[7]=((unsigned char) (blocks>>8))&0xff; 652 pccb->cmd[8]=(unsigned char) blocks & 0xff; 653 pccb->cmd[6]=0; 654 pccb->cmdlen=10; 655 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ 656 debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n", 657 pccb->cmd[0],pccb->cmd[1], 658 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4],pccb->cmd[5], 659 pccb->cmd[7],pccb->cmd[8]); 660 } 661 662 void scsi_setup_write_ext(ccb *pccb, lbaint_t start, unsigned short blocks) 663 { 664 pccb->cmd[0] = SCSI_WRITE10; 665 pccb->cmd[1] = pccb->lun << 5; 666 pccb->cmd[2] = ((unsigned char) (start>>24)) & 0xff; 667 pccb->cmd[3] = ((unsigned char) (start>>16)) & 0xff; 668 pccb->cmd[4] = ((unsigned char) (start>>8)) & 0xff; 669 pccb->cmd[5] = ((unsigned char) (start)) & 0xff; 670 pccb->cmd[6] = 0; 671 pccb->cmd[7] = ((unsigned char) (blocks>>8)) & 0xff; 672 pccb->cmd[8] = (unsigned char)blocks & 0xff; 673 pccb->cmd[9] = 0; 674 pccb->cmdlen = 10; 675 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */ 676 debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n", 677 __func__, 678 pccb->cmd[0], pccb->cmd[1], 679 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5], 680 pccb->cmd[7], pccb->cmd[8]); 681 } 682 683 void scsi_setup_read6(ccb * pccb, lbaint_t start, unsigned short blocks) 684 { 685 pccb->cmd[0]=SCSI_READ6; 686 pccb->cmd[1]=pccb->lun<<5 | (((unsigned char)(start>>16))&0x1f); 687 pccb->cmd[2]=((unsigned char) (start>>8))&0xff; 688 pccb->cmd[3]=((unsigned char) (start))&0xff; 689 pccb->cmd[4]=(unsigned char) blocks & 0xff; 690 pccb->cmd[5]=0; 691 pccb->cmdlen=6; 692 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ 693 debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n", 694 pccb->cmd[0],pccb->cmd[1], 695 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4]); 696 } 697 698 699 void scsi_setup_inquiry(ccb * pccb) 700 { 701 pccb->cmd[0]=SCSI_INQUIRY; 702 pccb->cmd[1]=pccb->lun<<5; 703 pccb->cmd[2]=0; 704 pccb->cmd[3]=0; 705 if(pccb->datalen>255) 706 pccb->cmd[4]=255; 707 else 708 pccb->cmd[4]=(unsigned char)pccb->datalen; 709 pccb->cmd[5]=0; 710 pccb->cmdlen=6; 711 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */ 712 } 713 714 715 U_BOOT_CMD( 716 scsi, 5, 1, do_scsi, 717 "SCSI sub-system", 718 "reset - reset SCSI controller\n" 719 "scsi info - show available SCSI devices\n" 720 "scsi scan - (re-)scan SCSI bus\n" 721 "scsi device [dev] - show or set current device\n" 722 "scsi part [dev] - print partition table of one or all SCSI devices\n" 723 "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n" 724 " to memory address `addr'\n" 725 "scsi write addr blk# cnt - write `cnt' blocks starting at block\n" 726 " `blk#' from memory address `addr'" 727 ); 728 729 U_BOOT_CMD( 730 scsiboot, 3, 1, do_scsiboot, 731 "boot from SCSI device", 732 "loadAddr dev:part" 733 ); 734