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 /* copy src to dest, skipping leading and trailing blanks
 331  * and null terminate the string
 332  */
 333 void scsi_ident_cpy(unsigned char *dest, unsigned char *src, unsigned int len)
 334 {
 335         int start, end;
 336
 337         start = 0;
 338         while (start < len) {
 339                 if (src[start] != ' ')
 340                         break;
 341                 start++;
 342         }
 343         end = len-1;
 344         while (end > start) {
 345                 if (src[end] != ' ')
 346                         break;
 347                 end--;
 348         }
 349         for (; start <= end; start++)
 350                 *dest ++= src[start];
 351         *dest = '\0';
 352 }
 353
 354
 355 /* Trim trailing blanks, and NUL-terminate string
 356  */
 357 void scsi_trim_trail(unsigned char *str, unsigned int len)
 358 {
 359         unsigned char *p = str + len - 1;
 360
 361         while (len-- > 0) {
 362                 *p-- = '\0';
 363                 if (*p != ' ')
 364                         return;
 365         }
 366 }
 367
 368 int scsi_read_capacity(ccb *pccb, lbaint_t *capacity, unsigned long *blksz)
 369 {
 370         *capacity = 0;
 371
 372         memset(pccb->cmd, '\0', sizeof(pccb->cmd));
 373         pccb->cmd[0] = SCSI_RD_CAPAC10;
 374         pccb->cmd[1] = pccb->lun << 5;
 375         pccb->cmdlen = 10;
 376         pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
 377
 378         pccb->datalen = 8;
 379         if (scsi_exec(pccb) != true)
 380                 return 1;
 381
 382         *capacity = ((lbaint_t)pccb->pdata[0] << 24) |
 383                     ((lbaint_t)pccb->pdata[1] << 16) |
 384                     ((lbaint_t)pccb->pdata[2] << 8)  |
 385                     ((lbaint_t)pccb->pdata[3]);
 386
 387         if (*capacity != 0xffffffff) {
 388                 /* Read capacity (10) was sufficient for this drive. */
 389                 *blksz = ((unsigned long)pccb->pdata[4] << 24) |
 390                          ((unsigned long)pccb->pdata[5] << 16) |
 391                          ((unsigned long)pccb->pdata[6] << 8)  |
 392                          ((unsigned long)pccb->pdata[7]);
 393                 return 0;
 394         }
 395
 396         /* Read capacity (10) was insufficient. Use read capacity (16). */
 397         memset(pccb->cmd, '\0', sizeof(pccb->cmd));
 398         pccb->cmd[0] = SCSI_RD_CAPAC16;
 399         pccb->cmd[1] = 0x10;
 400         pccb->cmdlen = 16;
 401         pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
 402
 403         pccb->datalen = 16;
 404         if (scsi_exec(pccb) != true)
 405                 return 1;
 406
 407         *capacity = ((uint64_t)pccb->pdata[0] << 56) |
 408                     ((uint64_t)pccb->pdata[1] << 48) |
 409                     ((uint64_t)pccb->pdata[2] << 40) |
 410                     ((uint64_t)pccb->pdata[3] << 32) |
 411                     ((uint64_t)pccb->pdata[4] << 24) |
 412                     ((uint64_t)pccb->pdata[5] << 16) |
 413                     ((uint64_t)pccb->pdata[6] << 8)  |
 414                     ((uint64_t)pccb->pdata[7]);
 415
 416         *blksz = ((uint64_t)pccb->pdata[8]  << 56) |
 417                  ((uint64_t)pccb->pdata[9]  << 48) |
 418                  ((uint64_t)pccb->pdata[10] << 40) |
 419                  ((uint64_t)pccb->pdata[11] << 32) |
 420                  ((uint64_t)pccb->pdata[12] << 24) |
 421                  ((uint64_t)pccb->pdata[13] << 16) |
 422                  ((uint64_t)pccb->pdata[14] << 8)  |
 423                  ((uint64_t)pccb->pdata[15]);
 424
 425         return 0;
 426 }
 427
 428
 429 /*
 430  * Some setup (fill-in) routines
 431  */
 432 void scsi_setup_test_unit_ready(ccb *pccb)
 433 {
 434         pccb->cmd[0] = SCSI_TST_U_RDY;
 435         pccb->cmd[1] = pccb->lun << 5;
 436         pccb->cmd[2] = 0;
 437         pccb->cmd[3] = 0;
 438         pccb->cmd[4] = 0;
 439         pccb->cmd[5] = 0;
 440         pccb->cmdlen = 6;
 441         pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
 442 }
 443
 444 /*
 445  * (re)-scan the scsi bus and reports scsi device info
 446  * to the user if mode = 1
 447  */
 448 void scsi_scan(int mode)
 449 {
 450         unsigned char i, perq, modi, lun;
 451         lbaint_t capacity;
 452         unsigned long blksz;
 453         ccb *pccb = (ccb *)&tempccb;
 454
 455         if (mode == 1)
 456                 printf("scanning bus for devices...\n");
 457         for (i = 0; i < CONFIG_SYS_SCSI_MAX_DEVICE; i++) {
 458                 scsi_dev_desc[i].target = 0xff;
 459                 scsi_dev_desc[i].lun = 0xff;
 460                 scsi_dev_desc[i].lba = 0;
 461                 scsi_dev_desc[i].blksz = 0;
 462                 scsi_dev_desc[i].log2blksz =
 463                         LOG2_INVALID(typeof(scsi_dev_desc[i].log2blksz));
 464                 scsi_dev_desc[i].type = DEV_TYPE_UNKNOWN;
 465                 scsi_dev_desc[i].vendor[0] = 0;
 466                 scsi_dev_desc[i].product[0] = 0;
 467                 scsi_dev_desc[i].revision[0] = 0;
 468                 scsi_dev_desc[i].removable = false;
 469                 scsi_dev_desc[i].if_type = IF_TYPE_SCSI;
 470                 scsi_dev_desc[i].devnum = i;
 471                 scsi_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
 472                 scsi_dev_desc[i].block_read = scsi_read;
 473                 scsi_dev_desc[i].block_write = scsi_write;
 474         }
 475         scsi_max_devs = 0;
 476         for (i = 0; i < CONFIG_SYS_SCSI_MAX_SCSI_ID; i++) {
 477                 pccb->target = i;
 478                 for (lun = 0; lun < CONFIG_SYS_SCSI_MAX_LUN; lun++) {
 479                         pccb->lun = lun;
 480                         pccb->pdata = (unsigned char *)&tempbuff;
 481                         pccb->datalen = 512;
 482                         scsi_setup_inquiry(pccb);
 483                         if (scsi_exec(pccb) != true) {
 484                                 if (pccb->contr_stat == SCSI_SEL_TIME_OUT) {
 485                                         /*
 486                                          * selection timeout => assuming no
 487                                          * device present
 488                                          */
 489                                         debug("Selection timeout ID %d\n",
 490                                               pccb->target);
 491                                         continue;
 492                                 }
 493                                 scsi_print_error(pccb);
 494                                 continue;
 495                         }
 496                         perq = tempbuff[0];
 497                         modi = tempbuff[1];
 498                         if ((perq & 0x1f) == 0x1f)
 499                                 continue; /* skip unknown devices */
 500                         if ((modi & 0x80) == 0x80) /* drive is removable */
 501                                 scsi_dev_desc[scsi_max_devs].removable = true;
 502                         /* get info for this device */
 503                         scsi_ident_cpy((unsigned char *)&scsi_dev_desc
 504                                                 [scsi_max_devs].vendor[0],
 505                                        &tempbuff[8], 8);
 506                         scsi_ident_cpy((unsigned char *)&scsi_dev_desc
 507                                                 [scsi_max_devs].product[0],
 508                                        &tempbuff[16], 16);
 509                         scsi_ident_cpy((unsigned char *)&scsi_dev_desc
 510                                                 [scsi_max_devs].revision[0],
 511                                        &tempbuff[32], 4);
 512                         scsi_dev_desc[scsi_max_devs].target = pccb->target;
 513                         scsi_dev_desc[scsi_max_devs].lun = pccb->lun;
 514
 515                         pccb->datalen = 0;
 516                         scsi_setup_test_unit_ready(pccb);
 517                         if (scsi_exec(pccb) != true) {
 518                                 if (scsi_dev_desc[scsi_max_devs].removable) {
 519                                         scsi_dev_desc[scsi_max_devs].type =
 520                                                         perq;
 521                                         goto removable;
 522                                 }
 523                                 scsi_print_error(pccb);
 524                                 continue;
 525                         }
 526                         if (scsi_read_capacity(pccb, &capacity, &blksz)) {
 527                                 scsi_print_error(pccb);
 528                                 continue;
 529                         }
 530                         scsi_dev_desc[scsi_max_devs].lba = capacity;
 531                         scsi_dev_desc[scsi_max_devs].blksz = blksz;
 532                         scsi_dev_desc[scsi_max_devs].log2blksz =
 533                                 LOG2(scsi_dev_desc[scsi_max_devs].blksz);
 534                         scsi_dev_desc[scsi_max_devs].type = perq;
 535                         part_init(&scsi_dev_desc[scsi_max_devs]);
 536 removable:
 537                         if (mode == 1) {
 538                                 printf("  Device %d: ", scsi_max_devs);
 539                                 dev_print(&scsi_dev_desc[scsi_max_devs]);
 540                         } /* if mode */
 541                         scsi_max_devs++;
 542                 } /* next LUN */
 543         }
 544         if (scsi_max_devs > 0)
 545                 scsi_curr_dev = 0;
 546         else
 547                 scsi_curr_dev = -1;
 548
 549         printf("Found %d device(s).\n", scsi_max_devs);
 550 #ifndef CONFIG_SPL_BUILD
 551         setenv_ulong("scsidevs", scsi_max_devs);
 552 #endif
 553 }
 554
 555 U_BOOT_LEGACY_BLK(scsi) = {
 556         .if_typename    = "sata",
 557         .if_type        = IF_TYPE_SCSI,
 558         .max_devs       = CONFIG_SYS_SCSI_MAX_DEVICE,
 559         .desc           = scsi_dev_desc,
 560 };