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cmd_sf: Add print mesgs on sf read/write commands
[people/ms/u-boot.git] / 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 );
"Das U-Boot" Source Tree