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