git.sur5r.net Git - u-boot/blob - common/cmd_scsi.c

   1 /*
   2  * (C) Copyright 2001
   3  * Denis Peter, MPL AG Switzerland
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  *
  23  *
  24  *
  25  */
  26
  27 /*
  28  * SCSI support.
  29  */
  30 #include <common.h>
  31 #include <command.h>
  32 #include <asm/processor.h>
  33 #include <scsi.h>
  34 #include <image.h>
  35 #include <pci.h>
  36
  37 #ifdef CONFIG_SCSI_DEV_LIST
  38 #define SCSI_DEV_LIST CONFIG_SCSI_DEV_LIST
  39 #else
  40 #ifdef CONFIG_SCSI_SYM53C8XX
  41 #define SCSI_VEND_ID    0x1000
  42 #ifndef CONFIG_SCSI_DEV_ID
  43 #define SCSI_DEV_ID             0x0001
  44 #else
  45 #define SCSI_DEV_ID             CONFIG_SCSI_DEV_ID
  46 #endif
  47 #elif defined CONFIG_SATA_ULI5288
  48
  49 #define SCSI_VEND_ID 0x10b9
  50 #define SCSI_DEV_ID  0x5288
  51
  52 #elif !defined(CONFIG_SCSI_AHCI_PLAT)
  53 #error no scsi device defined
  54 #endif
  55 #define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID}
  56 #endif
  57
  58 #ifdef CONFIG_PCI
  59 const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST };
  60 #endif
  61 static ccb tempccb;     /* temporary scsi command buffer */
  62
  63 static unsigned char tempbuff[512]; /* temporary data buffer */
  64
  65 static int scsi_max_devs; /* number of highest available scsi device */
  66
  67 static int scsi_curr_dev; /* current device */
  68
  69 static block_dev_desc_t scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE];
  70
  71 /********************************************************************************
  72  *  forward declerations of some Setup Routines
  73  */
  74 void scsi_setup_test_unit_ready(ccb * pccb);
  75 void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks);
  76 void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks);
  77 static void scsi_setup_write_ext(ccb *pccb, unsigned long start,
  78                           unsigned short blocks);
  79 void scsi_setup_inquiry(ccb * pccb);
  80 void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
  81
  82
  83 static int scsi_read_capacity(ccb *pccb, lbaint_t *capacity,
  84                               unsigned long *blksz);
  85 static ulong scsi_read(int device, lbaint_t blknr, lbaint_t blkcnt,
  86                        void *buffer);
  87 static ulong scsi_write(int device, lbaint_t blknr,
  88                         lbaint_t blkcnt, const void *buffer);
  89
  90
  91 /*********************************************************************************
  92  * (re)-scan the scsi bus and reports scsi device info
  93  * to the user if mode = 1
  94  */
  95 void scsi_scan(int mode)
  96 {
  97         unsigned char i,perq,modi,lun;
  98         lbaint_t capacity;
  99         unsigned long blksz;
 100         ccb* pccb=(ccb *)&tempccb;
 101
 102         if(mode==1) {
 103                 printf("scanning bus for devices...\n");
 104         }
 105         for(i=0;i<CONFIG_SYS_SCSI_MAX_DEVICE;i++) {
 106                 scsi_dev_desc[i].target=0xff;
 107                 scsi_dev_desc[i].lun=0xff;
 108                 scsi_dev_desc[i].lba=0;
 109                 scsi_dev_desc[i].blksz=0;
 110                 scsi_dev_desc[i].log2blksz =
 111                         LOG2_INVALID(typeof(scsi_dev_desc[i].log2blksz));
 112                 scsi_dev_desc[i].type=DEV_TYPE_UNKNOWN;
 113                 scsi_dev_desc[i].vendor[0]=0;
 114                 scsi_dev_desc[i].product[0]=0;
 115                 scsi_dev_desc[i].revision[0]=0;
 116                 scsi_dev_desc[i].removable = false;
 117                 scsi_dev_desc[i].if_type=IF_TYPE_SCSI;
 118                 scsi_dev_desc[i].dev=i;
 119                 scsi_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
 120                 scsi_dev_desc[i].block_read=scsi_read;
 121                 scsi_dev_desc[i].block_write = scsi_write;
 122         }
 123         scsi_max_devs=0;
 124         for(i=0;i<CONFIG_SYS_SCSI_MAX_SCSI_ID;i++) {
 125                 pccb->target=i;
 126                 for(lun=0;lun<CONFIG_SYS_SCSI_MAX_LUN;lun++) {
 127                         pccb->lun=lun;
 128                         pccb->pdata=(unsigned char *)&tempbuff;
 129                         pccb->datalen=512;
 130                         scsi_setup_inquiry(pccb);
 131                         if (scsi_exec(pccb) != true) {
 132                                 if(pccb->contr_stat==SCSI_SEL_TIME_OUT) {
 133                                         debug ("Selection timeout ID %d\n",pccb->target);
 134                                         continue; /* selection timeout => assuming no device present */
 135                                 }
 136                                 scsi_print_error(pccb);
 137                                 continue;
 138                         }
 139                         perq=tempbuff[0];
 140                         modi=tempbuff[1];
 141                         if((perq & 0x1f)==0x1f) {
 142                                 continue; /* skip unknown devices */
 143                         }
 144                         if((modi&0x80)==0x80) /* drive is removable */
 145                                 scsi_dev_desc[scsi_max_devs].removable=true;
 146                         /* get info for this device */
 147                         scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].vendor[0],
 148                                        &tempbuff[8], 8);
 149                         scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].product[0],
 150                                        &tempbuff[16], 16);
 151                         scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].revision[0],
 152                                        &tempbuff[32], 4);
 153                         scsi_dev_desc[scsi_max_devs].target=pccb->target;
 154                         scsi_dev_desc[scsi_max_devs].lun=pccb->lun;
 155
 156                         pccb->datalen=0;
 157                         scsi_setup_test_unit_ready(pccb);
 158                         if (scsi_exec(pccb) != true) {
 159                                 if (scsi_dev_desc[scsi_max_devs].removable == true) {
 160                                         scsi_dev_desc[scsi_max_devs].type=perq;
 161                                         goto removable;
 162                                 }
 163                                 scsi_print_error(pccb);
 164                                 continue;
 165                         }
 166                         if (scsi_read_capacity(pccb, &capacity, &blksz)) {
 167                                 scsi_print_error(pccb);
 168                                 continue;
 169                         }
 170                         scsi_dev_desc[scsi_max_devs].lba=capacity;
 171                         scsi_dev_desc[scsi_max_devs].blksz=blksz;
 172                         scsi_dev_desc[scsi_max_devs].log2blksz =
 173                                 LOG2(scsi_dev_desc[scsi_max_devs].blksz);
 174                         scsi_dev_desc[scsi_max_devs].type=perq;
 175                         init_part(&scsi_dev_desc[scsi_max_devs]);
 176 removable:
 177                         if(mode==1) {
 178                                 printf ("  Device %d: ", scsi_max_devs);
 179                                 dev_print(&scsi_dev_desc[scsi_max_devs]);
 180                         } /* if mode */
 181                         scsi_max_devs++;
 182                 } /* next LUN */
 183         }
 184         if(scsi_max_devs>0)
 185                 scsi_curr_dev=0;
 186         else
 187                 scsi_curr_dev = -1;
 188
 189         printf("Found %d device(s).\n", scsi_max_devs);
 190         setenv_ulong("scsidevs", scsi_max_devs);
 191 }
 192
 193 int scsi_get_disk_count(void)
 194 {
 195         return scsi_max_devs;
 196 }
 197
 198 #ifdef CONFIG_PCI
 199 void scsi_init(void)
 200 {
 201         int busdevfunc;
 202         int i;
 203         /*
 204          * Find a device from the list, this driver will support a single
 205          * controller.
 206          */
 207         for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
 208                 /* get PCI Device ID */
 209                 busdevfunc = pci_find_device(scsi_device_list[i].vendor,
 210                                              scsi_device_list[i].device,
 211                                              0);
 212                 if (busdevfunc != -1)
 213                         break;
 214         }
 215
 216         if (busdevfunc == -1) {
 217                 printf("Error: SCSI Controller(s) ");
 218                 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
 219                         printf("%04X:%04X ",
 220                                scsi_device_list[i].vendor,
 221                                scsi_device_list[i].device);
 222                 }
 223                 printf("not found\n");
 224                 return;
 225         }
 226 #ifdef DEBUG
 227         else {
 228                 printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",
 229                        scsi_device_list[i].vendor,
 230                        scsi_device_list[i].device,
 231                        (busdevfunc >> 16) & 0xFF,
 232                        (busdevfunc >> 11) & 0x1F,
 233                        (busdevfunc >> 8) & 0x7);
 234         }
 235 #endif
 236         scsi_low_level_init(busdevfunc);
 237         scsi_scan(1);
 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_curr_dev, blk, cnt, (ulong *)addr);
 350                                 printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR");
 351                                 return 0;
 352                         } else if (strcmp(argv[1], "write") == 0) {
 353                                 ulong addr = simple_strtoul(argv[2], NULL, 16);
 354                                 ulong blk = simple_strtoul(argv[3], NULL, 16);
 355                                 ulong cnt = simple_strtoul(argv[4], NULL, 16);
 356                                 ulong n;
 357                                 printf("\nSCSI write: device %d block # %ld, "
 358                                        "count %ld ... ",
 359                                        scsi_curr_dev, blk, cnt);
 360                                 n = scsi_write(scsi_curr_dev, blk, cnt,
 361                                                (ulong *)addr);
 362                                 printf("%ld blocks written: %s\n", n,
 363                                        (n == cnt) ? "OK" : "ERROR");
 364                                 return 0;
 365                         }
 366         } /* switch */
 367         return CMD_RET_USAGE;
 368 }
 369
 370 /****************************************************************************************
 371  * scsi_read
 372  */
 373
 374 #define SCSI_MAX_READ_BLK 0xFFFF /* almost the maximum amount of the scsi_ext command.. */
 375
 376 static ulong scsi_read(int device, lbaint_t blknr, lbaint_t blkcnt,
 377                        void *buffer)
 378 {
 379         lbaint_t start, blks;
 380         uintptr_t buf_addr;
 381         unsigned short smallblks;
 382         ccb* pccb=(ccb *)&tempccb;
 383         device&=0xff;
 384         /* Setup  device
 385          */
 386         pccb->target=scsi_dev_desc[device].target;
 387         pccb->lun=scsi_dev_desc[device].lun;
 388         buf_addr=(unsigned long)buffer;
 389         start=blknr;
 390         blks=blkcnt;
 391         debug("\nscsi_read: dev %d startblk " LBAF
 392               ", blccnt " LBAF " buffer %lx\n",
 393               device, start, blks, (unsigned long)buffer);
 394         do {
 395                 pccb->pdata=(unsigned char *)buf_addr;
 396                 if(blks>SCSI_MAX_READ_BLK) {
 397                         pccb->datalen=scsi_dev_desc[device].blksz * SCSI_MAX_READ_BLK;
 398                         smallblks=SCSI_MAX_READ_BLK;
 399                         scsi_setup_read_ext(pccb,start,smallblks);
 400                         start+=SCSI_MAX_READ_BLK;
 401                         blks-=SCSI_MAX_READ_BLK;
 402                 }
 403                 else {
 404                         pccb->datalen=scsi_dev_desc[device].blksz * blks;
 405                         smallblks=(unsigned short) blks;
 406                         scsi_setup_read_ext(pccb,start,smallblks);
 407                         start+=blks;
 408                         blks=0;
 409                 }
 410                 debug("scsi_read_ext: startblk " LBAF
 411                       ", blccnt %x buffer %lx\n",
 412                       start, smallblks, buf_addr);
 413                 if (scsi_exec(pccb) != true) {
 414                         scsi_print_error(pccb);
 415                         blkcnt-=blks;
 416                         break;
 417                 }
 418                 buf_addr+=pccb->datalen;
 419         } while(blks!=0);
 420         debug("scsi_read_ext: end startblk " LBAF
 421               ", blccnt %x buffer %lx\n", start, smallblks, buf_addr);
 422         return(blkcnt);
 423 }
 424
 425 /*******************************************************************************
 426  * scsi_write
 427  */
 428
 429 /* Almost the maximum amount of the scsi_ext command.. */
 430 #define SCSI_MAX_WRITE_BLK 0xFFFF
 431
 432 static ulong scsi_write(int device, lbaint_t blknr,
 433                         lbaint_t blkcnt, const void *buffer)
 434 {
 435         lbaint_t start, blks;
 436         uintptr_t buf_addr;
 437         unsigned short smallblks;
 438         ccb* pccb = (ccb *)&tempccb;
 439         device &= 0xff;
 440         /* Setup  device
 441          */
 442         pccb->target = scsi_dev_desc[device].target;
 443         pccb->lun = scsi_dev_desc[device].lun;
 444         buf_addr = (unsigned long)buffer;
 445         start = blknr;
 446         blks = blkcnt;
 447         debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
 448               __func__, device, start, blks, (unsigned long)buffer);
 449         do {
 450                 pccb->pdata = (unsigned char *)buf_addr;
 451                 if (blks > SCSI_MAX_WRITE_BLK) {
 452                         pccb->datalen = (scsi_dev_desc[device].blksz *
 453                                          SCSI_MAX_WRITE_BLK);
 454                         smallblks = SCSI_MAX_WRITE_BLK;
 455                         scsi_setup_write_ext(pccb, start, smallblks);
 456                         start += SCSI_MAX_WRITE_BLK;
 457                         blks -= SCSI_MAX_WRITE_BLK;
 458                 } else {
 459                         pccb->datalen = scsi_dev_desc[device].blksz * blks;
 460                         smallblks = (unsigned short)blks;
 461                         scsi_setup_write_ext(pccb, start, smallblks);
 462                         start += blks;
 463                         blks = 0;
 464                 }
 465                 debug("%s: startblk " LBAF ", blccnt %x buffer %lx\n",
 466                       __func__, start, smallblks, buf_addr);
 467                 if (scsi_exec(pccb) != true) {
 468                         scsi_print_error(pccb);
 469                         blkcnt -= blks;
 470                         break;
 471                 }
 472                 buf_addr += pccb->datalen;
 473         } while (blks != 0);
 474         debug("%s: end startblk " LBAF ", blccnt %x buffer %lx\n",
 475               __func__, start, smallblks, buf_addr);
 476         return blkcnt;
 477 }
 478
 479 /* copy src to dest, skipping leading and trailing blanks
 480  * and null terminate the string
 481  */
 482 void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len)
 483 {
 484         int start,end;
 485
 486         start=0;
 487         while(start<len) {
 488                 if(src[start]!=' ')
 489                         break;
 490                 start++;
 491         }
 492         end=len-1;
 493         while(end>start) {
 494                 if(src[end]!=' ')
 495                         break;
 496                 end--;
 497         }
 498         for( ; start<=end; start++) {
 499                 *dest++=src[start];
 500         }
 501         *dest='\0';
 502 }
 503
 504
 505 /* Trim trailing blanks, and NUL-terminate string
 506  */
 507 void scsi_trim_trail (unsigned char *str, unsigned int len)
 508 {
 509         unsigned char *p = str + len - 1;
 510
 511         while (len-- > 0) {
 512                 *p-- = '\0';
 513                 if (*p != ' ') {
 514                         return;
 515                 }
 516         }
 517 }
 518
 519 int scsi_read_capacity(ccb *pccb, lbaint_t *capacity, unsigned long *blksz)
 520 {
 521         *capacity = 0;
 522
 523         memset(pccb->cmd, 0, sizeof(pccb->cmd));
 524         pccb->cmd[0] = SCSI_RD_CAPAC10;
 525         pccb->cmd[1] = pccb->lun << 5;
 526         pccb->cmdlen = 10;
 527         pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
 528
 529         pccb->datalen = 8;
 530         if (scsi_exec(pccb) != true)
 531                 return 1;
 532
 533         *capacity = ((lbaint_t)pccb->pdata[0] << 24) |
 534                     ((lbaint_t)pccb->pdata[1] << 16) |
 535                     ((lbaint_t)pccb->pdata[2] << 8)  |
 536                     ((lbaint_t)pccb->pdata[3]);
 537
 538         if (*capacity != 0xffffffff) {
 539                 /* Read capacity (10) was sufficient for this drive. */
 540                 *blksz = ((unsigned long)pccb->pdata[4] << 24) |
 541                          ((unsigned long)pccb->pdata[5] << 16) |
 542                          ((unsigned long)pccb->pdata[6] << 8)  |
 543                          ((unsigned long)pccb->pdata[7]);
 544                 return 0;
 545         }
 546
 547         /* Read capacity (10) was insufficient. Use read capacity (16). */
 548
 549         memset(pccb->cmd, 0, sizeof(pccb->cmd));
 550         pccb->cmd[0] = SCSI_RD_CAPAC16;
 551         pccb->cmd[1] = 0x10;
 552         pccb->cmdlen = 16;
 553         pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
 554
 555         pccb->datalen = 16;
 556         if (scsi_exec(pccb) != true)
 557                 return 1;
 558
 559         *capacity = ((uint64_t)pccb->pdata[0] << 56) |
 560                     ((uint64_t)pccb->pdata[1] << 48) |
 561                     ((uint64_t)pccb->pdata[2] << 40) |
 562                     ((uint64_t)pccb->pdata[3] << 32) |
 563                     ((uint64_t)pccb->pdata[4] << 24) |
 564                     ((uint64_t)pccb->pdata[5] << 16) |
 565                     ((uint64_t)pccb->pdata[6] << 8)  |
 566                     ((uint64_t)pccb->pdata[7]);
 567
 568         *blksz = ((uint64_t)pccb->pdata[8]  << 56) |
 569                  ((uint64_t)pccb->pdata[9]  << 48) |
 570                  ((uint64_t)pccb->pdata[10] << 40) |
 571                  ((uint64_t)pccb->pdata[11] << 32) |
 572                  ((uint64_t)pccb->pdata[12] << 24) |
 573                  ((uint64_t)pccb->pdata[13] << 16) |
 574                  ((uint64_t)pccb->pdata[14] << 8)  |
 575                  ((uint64_t)pccb->pdata[15]);
 576
 577         return 0;
 578 }
 579
 580
 581 /************************************************************************************
 582  * Some setup (fill-in) routines
 583  */
 584 void scsi_setup_test_unit_ready(ccb * pccb)
 585 {
 586         pccb->cmd[0]=SCSI_TST_U_RDY;
 587         pccb->cmd[1]=pccb->lun<<5;
 588         pccb->cmd[2]=0;
 589         pccb->cmd[3]=0;
 590         pccb->cmd[4]=0;
 591         pccb->cmd[5]=0;
 592         pccb->cmdlen=6;
 593         pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
 594 }
 595
 596 void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks)
 597 {
 598         pccb->cmd[0]=SCSI_READ10;
 599         pccb->cmd[1]=pccb->lun<<5;
 600         pccb->cmd[2]=((unsigned char) (start>>24))&0xff;
 601         pccb->cmd[3]=((unsigned char) (start>>16))&0xff;
 602         pccb->cmd[4]=((unsigned char) (start>>8))&0xff;
 603         pccb->cmd[5]=((unsigned char) (start))&0xff;
 604         pccb->cmd[6]=0;
 605         pccb->cmd[7]=((unsigned char) (blocks>>8))&0xff;
 606         pccb->cmd[8]=(unsigned char) blocks & 0xff;
 607         pccb->cmd[6]=0;
 608         pccb->cmdlen=10;
 609         pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
 610         debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
 611                 pccb->cmd[0],pccb->cmd[1],
 612                 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4],pccb->cmd[5],
 613                 pccb->cmd[7],pccb->cmd[8]);
 614 }
 615
 616 void scsi_setup_write_ext(ccb *pccb, unsigned long start, unsigned short blocks)
 617 {
 618         pccb->cmd[0] = SCSI_WRITE10;
 619         pccb->cmd[1] = pccb->lun << 5;
 620         pccb->cmd[2] = ((unsigned char) (start>>24)) & 0xff;
 621         pccb->cmd[3] = ((unsigned char) (start>>16)) & 0xff;
 622         pccb->cmd[4] = ((unsigned char) (start>>8)) & 0xff;
 623         pccb->cmd[5] = ((unsigned char) (start)) & 0xff;
 624         pccb->cmd[6] = 0;
 625         pccb->cmd[7] = ((unsigned char) (blocks>>8)) & 0xff;
 626         pccb->cmd[8] = (unsigned char)blocks & 0xff;
 627         pccb->cmd[9] = 0;
 628         pccb->cmdlen = 10;
 629         pccb->msgout[0] = SCSI_IDENTIFY;  /* NOT USED */
 630         debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
 631               __func__,
 632               pccb->cmd[0], pccb->cmd[1],
 633               pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
 634               pccb->cmd[7], pccb->cmd[8]);
 635 }
 636
 637 void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks)
 638 {
 639         pccb->cmd[0]=SCSI_READ6;
 640         pccb->cmd[1]=pccb->lun<<5 | (((unsigned char)(start>>16))&0x1f);
 641         pccb->cmd[2]=((unsigned char) (start>>8))&0xff;
 642         pccb->cmd[3]=((unsigned char) (start))&0xff;
 643         pccb->cmd[4]=(unsigned char) blocks & 0xff;
 644         pccb->cmd[5]=0;
 645         pccb->cmdlen=6;
 646         pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
 647         debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n",
 648                 pccb->cmd[0],pccb->cmd[1],
 649                 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4]);
 650 }
 651
 652
 653 void scsi_setup_inquiry(ccb * pccb)
 654 {
 655         pccb->cmd[0]=SCSI_INQUIRY;
 656         pccb->cmd[1]=pccb->lun<<5;
 657         pccb->cmd[2]=0;
 658         pccb->cmd[3]=0;
 659         if(pccb->datalen>255)
 660                 pccb->cmd[4]=255;
 661         else
 662                 pccb->cmd[4]=(unsigned char)pccb->datalen;
 663         pccb->cmd[5]=0;
 664         pccb->cmdlen=6;
 665         pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
 666 }
 667
 668
 669 U_BOOT_CMD(
 670         scsi, 5, 1, do_scsi,
 671         "SCSI sub-system",
 672         "reset - reset SCSI controller\n"
 673         "scsi info  - show available SCSI devices\n"
 674         "scsi scan  - (re-)scan SCSI bus\n"
 675         "scsi device [dev] - show or set current device\n"
 676         "scsi part [dev] - print partition table of one or all SCSI devices\n"
 677         "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
 678         "     to memory address `addr'\n"
 679         "scsi write addr blk# cnt - write `cnt' blocks starting at block\n"
 680         "     `blk#' from memory address `addr'"
 681 );
 682
 683 U_BOOT_CMD(
 684         scsiboot, 3, 1, do_scsiboot,
 685         "boot from SCSI device",
 686         "loadAddr dev:part"
 687 );