bc7d1b6c53007801eb24e298629040aa6c7ed2c5
[platform/kernel/u-boot.git] / cmd / cmd_scsi.c
1 /*
2  * (C) Copyright 2001
3  * Denis Peter, MPL AG Switzerland
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7
8 /*
9  * SCSI support.
10  */
11 #include <common.h>
12 #include <command.h>
13 #include <inttypes.h>
14 #include <asm/processor.h>
15 #include <scsi.h>
16 #include <image.h>
17 #include <pci.h>
18
19 #ifdef CONFIG_SCSI_DEV_LIST
20 #define SCSI_DEV_LIST CONFIG_SCSI_DEV_LIST
21 #else
22 #ifdef CONFIG_SCSI_SYM53C8XX
23 #define SCSI_VEND_ID    0x1000
24 #ifndef CONFIG_SCSI_DEV_ID
25 #define SCSI_DEV_ID             0x0001
26 #else
27 #define SCSI_DEV_ID             CONFIG_SCSI_DEV_ID
28 #endif
29 #elif defined CONFIG_SATA_ULI5288
30
31 #define SCSI_VEND_ID 0x10b9
32 #define SCSI_DEV_ID  0x5288
33
34 #elif !defined(CONFIG_SCSI_AHCI_PLAT)
35 #error no scsi device defined
36 #endif
37 #define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID}
38 #endif
39
40 #if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT)
41 const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST };
42 #endif
43 static ccb tempccb;     /* temporary scsi command buffer */
44
45 static unsigned char tempbuff[512]; /* temporary data buffer */
46
47 static int scsi_max_devs; /* number of highest available scsi device */
48
49 static int scsi_curr_dev; /* current device */
50
51 static block_dev_desc_t scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE];
52
53 /********************************************************************************
54  *  forward declerations of some Setup Routines
55  */
56 void scsi_setup_test_unit_ready(ccb * pccb);
57 void scsi_setup_read6(ccb * pccb, lbaint_t start, unsigned short blocks);
58 void scsi_setup_read_ext(ccb * pccb, lbaint_t start, unsigned short blocks);
59 void scsi_setup_read16(ccb * pccb, lbaint_t start, unsigned long blocks);
60
61 static void scsi_setup_write_ext(ccb *pccb, lbaint_t start,
62                                 unsigned short blocks);
63 void scsi_setup_inquiry(ccb * pccb);
64 void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
65
66
67 static int scsi_read_capacity(ccb *pccb, lbaint_t *capacity,
68                               unsigned long *blksz);
69 static ulong scsi_read(block_dev_desc_t *block_dev, lbaint_t blknr,
70                        lbaint_t blkcnt, void *buffer);
71 static ulong scsi_write(block_dev_desc_t *block_dev, lbaint_t blknr,
72                         lbaint_t blkcnt, const void *buffer);
73
74
75 /*********************************************************************************
76  * (re)-scan the scsi bus and reports scsi device info
77  * to the user if mode = 1
78  */
79 void scsi_scan(int mode)
80 {
81         unsigned char i,perq,modi,lun;
82         lbaint_t capacity;
83         unsigned long blksz;
84         ccb* pccb=(ccb *)&tempccb;
85
86         if(mode==1) {
87                 printf("scanning bus for devices...\n");
88         }
89         for(i=0;i<CONFIG_SYS_SCSI_MAX_DEVICE;i++) {
90                 scsi_dev_desc[i].target=0xff;
91                 scsi_dev_desc[i].lun=0xff;
92                 scsi_dev_desc[i].lba=0;
93                 scsi_dev_desc[i].blksz=0;
94                 scsi_dev_desc[i].log2blksz =
95                         LOG2_INVALID(typeof(scsi_dev_desc[i].log2blksz));
96                 scsi_dev_desc[i].type=DEV_TYPE_UNKNOWN;
97                 scsi_dev_desc[i].vendor[0]=0;
98                 scsi_dev_desc[i].product[0]=0;
99                 scsi_dev_desc[i].revision[0]=0;
100                 scsi_dev_desc[i].removable = false;
101                 scsi_dev_desc[i].if_type=IF_TYPE_SCSI;
102                 scsi_dev_desc[i].dev=i;
103                 scsi_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
104                 scsi_dev_desc[i].block_read=scsi_read;
105                 scsi_dev_desc[i].block_write = scsi_write;
106         }
107         scsi_max_devs=0;
108         for(i=0;i<CONFIG_SYS_SCSI_MAX_SCSI_ID;i++) {
109                 pccb->target=i;
110                 for(lun=0;lun<CONFIG_SYS_SCSI_MAX_LUN;lun++) {
111                         pccb->lun=lun;
112                         pccb->pdata=(unsigned char *)&tempbuff;
113                         pccb->datalen=512;
114                         scsi_setup_inquiry(pccb);
115                         if (scsi_exec(pccb) != true) {
116                                 if(pccb->contr_stat==SCSI_SEL_TIME_OUT) {
117                                         debug ("Selection timeout ID %d\n",pccb->target);
118                                         continue; /* selection timeout => assuming no device present */
119                                 }
120                                 scsi_print_error(pccb);
121                                 continue;
122                         }
123                         perq=tempbuff[0];
124                         modi=tempbuff[1];
125                         if((perq & 0x1f)==0x1f) {
126                                 continue; /* skip unknown devices */
127                         }
128                         if((modi&0x80)==0x80) /* drive is removable */
129                                 scsi_dev_desc[scsi_max_devs].removable=true;
130                         /* get info for this device */
131                         scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].vendor[0],
132                                        &tempbuff[8], 8);
133                         scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].product[0],
134                                        &tempbuff[16], 16);
135                         scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].revision[0],
136                                        &tempbuff[32], 4);
137                         scsi_dev_desc[scsi_max_devs].target=pccb->target;
138                         scsi_dev_desc[scsi_max_devs].lun=pccb->lun;
139
140                         pccb->datalen=0;
141                         scsi_setup_test_unit_ready(pccb);
142                         if (scsi_exec(pccb) != true) {
143                                 if (scsi_dev_desc[scsi_max_devs].removable == true) {
144                                         scsi_dev_desc[scsi_max_devs].type=perq;
145                                         goto removable;
146                                 }
147                                 scsi_print_error(pccb);
148                                 continue;
149                         }
150                         if (scsi_read_capacity(pccb, &capacity, &blksz)) {
151                                 scsi_print_error(pccb);
152                                 continue;
153                         }
154                         scsi_dev_desc[scsi_max_devs].lba=capacity;
155                         scsi_dev_desc[scsi_max_devs].blksz=blksz;
156                         scsi_dev_desc[scsi_max_devs].log2blksz =
157                                 LOG2(scsi_dev_desc[scsi_max_devs].blksz);
158                         scsi_dev_desc[scsi_max_devs].type=perq;
159                         init_part(&scsi_dev_desc[scsi_max_devs]);
160 removable:
161                         if(mode==1) {
162                                 printf ("  Device %d: ", scsi_max_devs);
163                                 dev_print(&scsi_dev_desc[scsi_max_devs]);
164                         } /* if mode */
165                         scsi_max_devs++;
166                 } /* next LUN */
167         }
168         if(scsi_max_devs>0)
169                 scsi_curr_dev=0;
170         else
171                 scsi_curr_dev = -1;
172
173         printf("Found %d device(s).\n", scsi_max_devs);
174 #ifndef CONFIG_SPL_BUILD
175         setenv_ulong("scsidevs", scsi_max_devs);
176 #endif
177 }
178
179 int scsi_get_disk_count(void)
180 {
181         return scsi_max_devs;
182 }
183
184 #if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT)
185 void scsi_init(void)
186 {
187         int busdevfunc = -1;
188         int i;
189         /*
190          * Find a device from the list, this driver will support a single
191          * controller.
192          */
193         for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
194                 /* get PCI Device ID */
195 #ifdef CONFIG_DM_PCI
196                 struct udevice *dev;
197                 int ret;
198
199                 ret = dm_pci_find_device(scsi_device_list[i].vendor,
200                                          scsi_device_list[i].device, 0, &dev);
201                 if (!ret) {
202                         busdevfunc = dm_pci_get_bdf(dev);
203                         break;
204                 }
205 #else
206                 busdevfunc = pci_find_device(scsi_device_list[i].vendor,
207                                              scsi_device_list[i].device,
208                                              0);
209 #endif
210                 if (busdevfunc != -1)
211                         break;
212         }
213
214         if (busdevfunc == -1) {
215                 printf("Error: SCSI Controller(s) ");
216                 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
217                         printf("%04X:%04X ",
218                                scsi_device_list[i].vendor,
219                                scsi_device_list[i].device);
220                 }
221                 printf("not found\n");
222                 return;
223         }
224 #ifdef DEBUG
225         else {
226                 printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",
227                        scsi_device_list[i].vendor,
228                        scsi_device_list[i].device,
229                        (busdevfunc >> 16) & 0xFF,
230                        (busdevfunc >> 11) & 0x1F,
231                        (busdevfunc >> 8) & 0x7);
232         }
233 #endif
234         bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI, "ahci");
235         scsi_low_level_init(busdevfunc);
236         scsi_scan(1);
237         bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI);
238 }
239 #endif
240
241 #ifdef CONFIG_PARTITIONS
242 block_dev_desc_t * scsi_get_dev(int dev)
243 {
244         return (dev < CONFIG_SYS_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL;
245 }
246 #endif
247
248 /******************************************************************************
249  * scsi boot command intepreter. Derived from diskboot
250  */
251 int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
252 {
253         return common_diskboot(cmdtp, "scsi", argc, argv);
254 }
255
256 /*********************************************************************************
257  * scsi command intepreter
258  */
259 int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
260 {
261         switch (argc) {
262         case 0:
263         case 1:
264                 return CMD_RET_USAGE;
265
266         case 2:
267                         if (strncmp(argv[1],"res",3) == 0) {
268                                 printf("\nReset SCSI\n");
269                                 scsi_bus_reset();
270                                 scsi_scan(1);
271                                 return 0;
272                         }
273                         if (strncmp(argv[1],"inf",3) == 0) {
274                                 int i;
275                                 for (i=0; i<CONFIG_SYS_SCSI_MAX_DEVICE; ++i) {
276                                         if(scsi_dev_desc[i].type==DEV_TYPE_UNKNOWN)
277                                                 continue; /* list only known devices */
278                                         printf ("SCSI dev. %d:  ", i);
279                                         dev_print(&scsi_dev_desc[i]);
280                                 }
281                                 return 0;
282                         }
283                         if (strncmp(argv[1],"dev",3) == 0) {
284                                 if ((scsi_curr_dev < 0) || (scsi_curr_dev >= CONFIG_SYS_SCSI_MAX_DEVICE)) {
285                                         printf("\nno SCSI devices available\n");
286                                         return 1;
287                                 }
288                                 printf ("\n    Device %d: ", scsi_curr_dev);
289                                 dev_print(&scsi_dev_desc[scsi_curr_dev]);
290                                 return 0;
291                         }
292                         if (strncmp(argv[1],"scan",4) == 0) {
293                                 scsi_scan(1);
294                                 return 0;
295                         }
296                         if (strncmp(argv[1],"part",4) == 0) {
297                                 int dev, ok;
298                                 for (ok=0, dev=0; dev<CONFIG_SYS_SCSI_MAX_DEVICE; ++dev) {
299                                         if (scsi_dev_desc[dev].type!=DEV_TYPE_UNKNOWN) {
300                                                 ok++;
301                                                 if (dev)
302                                                         printf("\n");
303                                                 debug ("print_part of %x\n",dev);
304                                                         print_part(&scsi_dev_desc[dev]);
305                                         }
306                                 }
307                                 if (!ok)
308                                         printf("\nno SCSI devices available\n");
309                                 return 1;
310                         }
311                         return CMD_RET_USAGE;
312         case 3:
313                         if (strncmp(argv[1],"dev",3) == 0) {
314                                 int dev = (int)simple_strtoul(argv[2], NULL, 10);
315                                 printf ("\nSCSI device %d: ", dev);
316                                 if (dev >= CONFIG_SYS_SCSI_MAX_DEVICE) {
317                                         printf("unknown device\n");
318                                         return 1;
319                                 }
320                                 printf ("\n    Device %d: ", dev);
321                                 dev_print(&scsi_dev_desc[dev]);
322                                 if(scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
323                                         return 1;
324                                 }
325                                 scsi_curr_dev = dev;
326                                 printf("... is now current device\n");
327                                 return 0;
328                         }
329                         if (strncmp(argv[1],"part",4) == 0) {
330                                 int dev = (int)simple_strtoul(argv[2], NULL, 10);
331                                 if(scsi_dev_desc[dev].type != DEV_TYPE_UNKNOWN) {
332                                         print_part(&scsi_dev_desc[dev]);
333                                 }
334                                 else {
335                                         printf ("\nSCSI device %d not available\n", dev);
336                                 }
337                                 return 1;
338                         }
339                         return CMD_RET_USAGE;
340     default:
341                         /* at least 4 args */
342                         if (strcmp(argv[1],"read") == 0) {
343                                 ulong addr = simple_strtoul(argv[2], NULL, 16);
344                                 ulong blk  = simple_strtoul(argv[3], NULL, 16);
345                                 ulong cnt  = simple_strtoul(argv[4], NULL, 16);
346                                 ulong n;
347                                 printf ("\nSCSI read: device %d block # %ld, count %ld ... ",
348                                                 scsi_curr_dev, blk, cnt);
349                                 n = scsi_read(&scsi_dev_desc[scsi_curr_dev],
350                                               blk, cnt, (ulong *)addr);
351                                 printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR");
352                                 return 0;
353                         } else if (strcmp(argv[1], "write") == 0) {
354                                 ulong addr = simple_strtoul(argv[2], NULL, 16);
355                                 ulong blk = simple_strtoul(argv[3], NULL, 16);
356                                 ulong cnt = simple_strtoul(argv[4], NULL, 16);
357                                 ulong n;
358                                 printf("\nSCSI write: device %d block # %ld, "
359                                        "count %ld ... ",
360                                        scsi_curr_dev, blk, cnt);
361                                 n = scsi_write(&scsi_dev_desc[scsi_curr_dev],
362                                                blk, cnt, (ulong *)addr);
363                                 printf("%ld blocks written: %s\n", n,
364                                        (n == cnt) ? "OK" : "ERROR");
365                                 return 0;
366                         }
367         } /* switch */
368         return CMD_RET_USAGE;
369 }
370
371 /****************************************************************************************
372  * scsi_read
373  */
374
375 /* almost the maximum amount of the scsi_ext command.. */
376 #define SCSI_MAX_READ_BLK 0xFFFF
377 #define SCSI_LBA48_READ 0xFFFFFFF
378
379 static ulong scsi_read(block_dev_desc_t *block_dev, lbaint_t blknr,
380                        lbaint_t blkcnt, void *buffer)
381 {
382         int device = block_dev->dev;
383         lbaint_t start, blks;
384         uintptr_t buf_addr;
385         unsigned short smallblks = 0;
386         ccb* pccb=(ccb *)&tempccb;
387         device&=0xff;
388         /* Setup  device
389          */
390         pccb->target=scsi_dev_desc[device].target;
391         pccb->lun=scsi_dev_desc[device].lun;
392         buf_addr=(unsigned long)buffer;
393         start=blknr;
394         blks=blkcnt;
395         debug("\nscsi_read: dev %d startblk " LBAF
396               ", blccnt " LBAF " buffer %lx\n",
397               device, start, blks, (unsigned long)buffer);
398         do {
399                 pccb->pdata=(unsigned char *)buf_addr;
400 #ifdef CONFIG_SYS_64BIT_LBA
401                 if (start > SCSI_LBA48_READ) {
402                         unsigned long blocks;
403                         blocks = min_t(lbaint_t, blks, SCSI_MAX_READ_BLK);
404                         pccb->datalen = scsi_dev_desc[device].blksz * blocks;
405                         scsi_setup_read16(pccb, start, blocks);
406                         start += blocks;
407                         blks -= blocks;
408                 } else
409 #endif
410                 if (blks > SCSI_MAX_READ_BLK) {
411                         pccb->datalen=scsi_dev_desc[device].blksz * SCSI_MAX_READ_BLK;
412                         smallblks=SCSI_MAX_READ_BLK;
413                         scsi_setup_read_ext(pccb,start,smallblks);
414                         start+=SCSI_MAX_READ_BLK;
415                         blks-=SCSI_MAX_READ_BLK;
416                 }
417                 else {
418                         pccb->datalen=scsi_dev_desc[device].blksz * blks;
419                         smallblks=(unsigned short) blks;
420                         scsi_setup_read_ext(pccb,start,smallblks);
421                         start+=blks;
422                         blks=0;
423                 }
424                 debug("scsi_read_ext: startblk " LBAF
425                       ", blccnt %x buffer %" PRIXPTR "\n",
426                       start, smallblks, buf_addr);
427                 if (scsi_exec(pccb) != true) {
428                         scsi_print_error(pccb);
429                         blkcnt-=blks;
430                         break;
431                 }
432                 buf_addr+=pccb->datalen;
433         } while(blks!=0);
434         debug("scsi_read_ext: end startblk " LBAF
435               ", blccnt %x buffer %" PRIXPTR "\n", start, smallblks, buf_addr);
436         return(blkcnt);
437 }
438
439 /*******************************************************************************
440  * scsi_write
441  */
442
443 /* Almost the maximum amount of the scsi_ext command.. */
444 #define SCSI_MAX_WRITE_BLK 0xFFFF
445
446 static ulong scsi_write(block_dev_desc_t *block_dev, lbaint_t blknr,
447                         lbaint_t blkcnt, const void *buffer)
448 {
449         int device = block_dev->dev;
450         lbaint_t start, blks;
451         uintptr_t buf_addr;
452         unsigned short smallblks;
453         ccb* pccb = (ccb *)&tempccb;
454         device &= 0xff;
455         /* Setup  device
456          */
457         pccb->target = scsi_dev_desc[device].target;
458         pccb->lun = scsi_dev_desc[device].lun;
459         buf_addr = (unsigned long)buffer;
460         start = blknr;
461         blks = blkcnt;
462         debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
463               __func__, device, start, blks, (unsigned long)buffer);
464         do {
465                 pccb->pdata = (unsigned char *)buf_addr;
466                 if (blks > SCSI_MAX_WRITE_BLK) {
467                         pccb->datalen = (scsi_dev_desc[device].blksz *
468                                          SCSI_MAX_WRITE_BLK);
469                         smallblks = SCSI_MAX_WRITE_BLK;
470                         scsi_setup_write_ext(pccb, start, smallblks);
471                         start += SCSI_MAX_WRITE_BLK;
472                         blks -= SCSI_MAX_WRITE_BLK;
473                 } else {
474                         pccb->datalen = scsi_dev_desc[device].blksz * blks;
475                         smallblks = (unsigned short)blks;
476                         scsi_setup_write_ext(pccb, start, smallblks);
477                         start += blks;
478                         blks = 0;
479                 }
480                 debug("%s: startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n",
481                       __func__, start, smallblks, buf_addr);
482                 if (scsi_exec(pccb) != true) {
483                         scsi_print_error(pccb);
484                         blkcnt -= blks;
485                         break;
486                 }
487                 buf_addr += pccb->datalen;
488         } while (blks != 0);
489         debug("%s: end startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n",
490               __func__, start, smallblks, buf_addr);
491         return blkcnt;
492 }
493
494 /* copy src to dest, skipping leading and trailing blanks
495  * and null terminate the string
496  */
497 void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len)
498 {
499         int start,end;
500
501         start=0;
502         while(start<len) {
503                 if(src[start]!=' ')
504                         break;
505                 start++;
506         }
507         end=len-1;
508         while(end>start) {
509                 if(src[end]!=' ')
510                         break;
511                 end--;
512         }
513         for( ; start<=end; start++) {
514                 *dest++=src[start];
515         }
516         *dest='\0';
517 }
518
519
520 /* Trim trailing blanks, and NUL-terminate string
521  */
522 void scsi_trim_trail (unsigned char *str, unsigned int len)
523 {
524         unsigned char *p = str + len - 1;
525
526         while (len-- > 0) {
527                 *p-- = '\0';
528                 if (*p != ' ') {
529                         return;
530                 }
531         }
532 }
533
534 int scsi_read_capacity(ccb *pccb, lbaint_t *capacity, unsigned long *blksz)
535 {
536         *capacity = 0;
537
538         memset(pccb->cmd, 0, sizeof(pccb->cmd));
539         pccb->cmd[0] = SCSI_RD_CAPAC10;
540         pccb->cmd[1] = pccb->lun << 5;
541         pccb->cmdlen = 10;
542         pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
543
544         pccb->datalen = 8;
545         if (scsi_exec(pccb) != true)
546                 return 1;
547
548         *capacity = ((lbaint_t)pccb->pdata[0] << 24) |
549                     ((lbaint_t)pccb->pdata[1] << 16) |
550                     ((lbaint_t)pccb->pdata[2] << 8)  |
551                     ((lbaint_t)pccb->pdata[3]);
552
553         if (*capacity != 0xffffffff) {
554                 /* Read capacity (10) was sufficient for this drive. */
555                 *blksz = ((unsigned long)pccb->pdata[4] << 24) |
556                          ((unsigned long)pccb->pdata[5] << 16) |
557                          ((unsigned long)pccb->pdata[6] << 8)  |
558                          ((unsigned long)pccb->pdata[7]);
559                 return 0;
560         }
561
562         /* Read capacity (10) was insufficient. Use read capacity (16). */
563
564         memset(pccb->cmd, 0, sizeof(pccb->cmd));
565         pccb->cmd[0] = SCSI_RD_CAPAC16;
566         pccb->cmd[1] = 0x10;
567         pccb->cmdlen = 16;
568         pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
569
570         pccb->datalen = 16;
571         if (scsi_exec(pccb) != true)
572                 return 1;
573
574         *capacity = ((uint64_t)pccb->pdata[0] << 56) |
575                     ((uint64_t)pccb->pdata[1] << 48) |
576                     ((uint64_t)pccb->pdata[2] << 40) |
577                     ((uint64_t)pccb->pdata[3] << 32) |
578                     ((uint64_t)pccb->pdata[4] << 24) |
579                     ((uint64_t)pccb->pdata[5] << 16) |
580                     ((uint64_t)pccb->pdata[6] << 8)  |
581                     ((uint64_t)pccb->pdata[7]);
582
583         *blksz = ((uint64_t)pccb->pdata[8]  << 56) |
584                  ((uint64_t)pccb->pdata[9]  << 48) |
585                  ((uint64_t)pccb->pdata[10] << 40) |
586                  ((uint64_t)pccb->pdata[11] << 32) |
587                  ((uint64_t)pccb->pdata[12] << 24) |
588                  ((uint64_t)pccb->pdata[13] << 16) |
589                  ((uint64_t)pccb->pdata[14] << 8)  |
590                  ((uint64_t)pccb->pdata[15]);
591
592         return 0;
593 }
594
595
596 /************************************************************************************
597  * Some setup (fill-in) routines
598  */
599 void scsi_setup_test_unit_ready(ccb * pccb)
600 {
601         pccb->cmd[0]=SCSI_TST_U_RDY;
602         pccb->cmd[1]=pccb->lun<<5;
603         pccb->cmd[2]=0;
604         pccb->cmd[3]=0;
605         pccb->cmd[4]=0;
606         pccb->cmd[5]=0;
607         pccb->cmdlen=6;
608         pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
609 }
610
611 #ifdef CONFIG_SYS_64BIT_LBA
612 void scsi_setup_read16(ccb * pccb, lbaint_t start, unsigned long blocks)
613 {
614         pccb->cmd[0] = SCSI_READ16;
615         pccb->cmd[1] = pccb->lun<<5;
616         pccb->cmd[2] = ((unsigned char) (start >> 56)) & 0xff;
617         pccb->cmd[3] = ((unsigned char) (start >> 48)) & 0xff;
618         pccb->cmd[4] = ((unsigned char) (start >> 40)) & 0xff;
619         pccb->cmd[5] = ((unsigned char) (start >> 32)) & 0xff;
620         pccb->cmd[6] = ((unsigned char) (start >> 24)) & 0xff;
621         pccb->cmd[7] = ((unsigned char) (start >> 16)) & 0xff;
622         pccb->cmd[8] = ((unsigned char) (start >> 8)) & 0xff;
623         pccb->cmd[9] = ((unsigned char) (start)) & 0xff;
624         pccb->cmd[10] = 0;
625         pccb->cmd[11] = ((unsigned char) (blocks >> 24)) & 0xff;
626         pccb->cmd[12] = ((unsigned char) (blocks >> 16)) & 0xff;
627         pccb->cmd[13] = ((unsigned char) (blocks >> 8)) & 0xff;
628         pccb->cmd[14] = (unsigned char) blocks & 0xff;
629         pccb->cmd[15] = 0;
630         pccb->cmdlen = 16;
631         pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
632         debug ("scsi_setup_read16: cmd: %02X %02X "
633                "startblk %02X%02X%02X%02X%02X%02X%02X%02X "
634                "blccnt %02X%02X%02X%02X\n",
635                 pccb->cmd[0], pccb->cmd[1],
636                 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
637                 pccb->cmd[6], pccb->cmd[7], pccb->cmd[8], pccb->cmd[9],
638                 pccb->cmd[11], pccb->cmd[12], pccb->cmd[13], pccb->cmd[14]);
639 }
640 #endif
641
642 void scsi_setup_read_ext(ccb * pccb, lbaint_t start, unsigned short blocks)
643 {
644         pccb->cmd[0]=SCSI_READ10;
645         pccb->cmd[1]=pccb->lun<<5;
646         pccb->cmd[2]=((unsigned char) (start>>24))&0xff;
647         pccb->cmd[3]=((unsigned char) (start>>16))&0xff;
648         pccb->cmd[4]=((unsigned char) (start>>8))&0xff;
649         pccb->cmd[5]=((unsigned char) (start))&0xff;
650         pccb->cmd[6]=0;
651         pccb->cmd[7]=((unsigned char) (blocks>>8))&0xff;
652         pccb->cmd[8]=(unsigned char) blocks & 0xff;
653         pccb->cmd[6]=0;
654         pccb->cmdlen=10;
655         pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
656         debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
657                 pccb->cmd[0],pccb->cmd[1],
658                 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4],pccb->cmd[5],
659                 pccb->cmd[7],pccb->cmd[8]);
660 }
661
662 void scsi_setup_write_ext(ccb *pccb, lbaint_t start, unsigned short blocks)
663 {
664         pccb->cmd[0] = SCSI_WRITE10;
665         pccb->cmd[1] = pccb->lun << 5;
666         pccb->cmd[2] = ((unsigned char) (start>>24)) & 0xff;
667         pccb->cmd[3] = ((unsigned char) (start>>16)) & 0xff;
668         pccb->cmd[4] = ((unsigned char) (start>>8)) & 0xff;
669         pccb->cmd[5] = ((unsigned char) (start)) & 0xff;
670         pccb->cmd[6] = 0;
671         pccb->cmd[7] = ((unsigned char) (blocks>>8)) & 0xff;
672         pccb->cmd[8] = (unsigned char)blocks & 0xff;
673         pccb->cmd[9] = 0;
674         pccb->cmdlen = 10;
675         pccb->msgout[0] = SCSI_IDENTIFY;  /* NOT USED */
676         debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
677               __func__,
678               pccb->cmd[0], pccb->cmd[1],
679               pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
680               pccb->cmd[7], pccb->cmd[8]);
681 }
682
683 void scsi_setup_read6(ccb * pccb, lbaint_t start, unsigned short blocks)
684 {
685         pccb->cmd[0]=SCSI_READ6;
686         pccb->cmd[1]=pccb->lun<<5 | (((unsigned char)(start>>16))&0x1f);
687         pccb->cmd[2]=((unsigned char) (start>>8))&0xff;
688         pccb->cmd[3]=((unsigned char) (start))&0xff;
689         pccb->cmd[4]=(unsigned char) blocks & 0xff;
690         pccb->cmd[5]=0;
691         pccb->cmdlen=6;
692         pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
693         debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n",
694                 pccb->cmd[0],pccb->cmd[1],
695                 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4]);
696 }
697
698
699 void scsi_setup_inquiry(ccb * pccb)
700 {
701         pccb->cmd[0]=SCSI_INQUIRY;
702         pccb->cmd[1]=pccb->lun<<5;
703         pccb->cmd[2]=0;
704         pccb->cmd[3]=0;
705         if(pccb->datalen>255)
706                 pccb->cmd[4]=255;
707         else
708                 pccb->cmd[4]=(unsigned char)pccb->datalen;
709         pccb->cmd[5]=0;
710         pccb->cmdlen=6;
711         pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
712 }
713
714
715 U_BOOT_CMD(
716         scsi, 5, 1, do_scsi,
717         "SCSI sub-system",
718         "reset - reset SCSI controller\n"
719         "scsi info  - show available SCSI devices\n"
720         "scsi scan  - (re-)scan SCSI bus\n"
721         "scsi device [dev] - show or set current device\n"
722         "scsi part [dev] - print partition table of one or all SCSI devices\n"
723         "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
724         "     to memory address `addr'\n"
725         "scsi write addr blk# cnt - write `cnt' blocks starting at block\n"
726         "     `blk#' from memory address `addr'"
727 );
728
729 U_BOOT_CMD(
730         scsiboot, 3, 1, do_scsiboot,
731         "boot from SCSI device",
732         "loadAddr dev:part"
733 );