common/scsi.c

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