blob: 1cdec159f5a8d71aef09a73292a4bc21dcb48355 [file] [log] [blame]
wdenke887afc2002-08-27 09:44:07 +00001/*
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 */
wdenke887afc2002-08-27 09:44:07 +000030#include <common.h>
31#include <command.h>
wdenke887afc2002-08-27 09:44:07 +000032#include <asm/processor.h>
33#include <scsi.h>
34#include <image.h>
wdenke887afc2002-08-27 09:44:07 +000035#include <pci.h>
36
wdenke887afc2002-08-27 09:44:07 +000037#ifdef CONFIG_SCSI_SYM53C8XX
38#define SCSI_VEND_ID 0x1000
39#ifndef CONFIG_SCSI_DEV_ID
40#define SCSI_DEV_ID 0x0001
41#else
42#define SCSI_DEV_ID CONFIG_SCSI_DEV_ID
43#endif
Jin Zhengxiong4782ac82006-08-23 19:10:44 +080044#elif defined CONFIG_SATA_ULI5288
45
46#define SCSI_VEND_ID 0x10b9
47#define SCSI_DEV_ID 0x5288
48
wdenke887afc2002-08-27 09:44:07 +000049#else
Jin Zhengxiong4782ac82006-08-23 19:10:44 +080050#error no scsi device defined
wdenke887afc2002-08-27 09:44:07 +000051#endif
52
53
54static ccb tempccb; /* temporary scsi command buffer */
55
56static unsigned char tempbuff[512]; /* temporary data buffer */
57
58static int scsi_max_devs; /* number of highest available scsi device */
59
60static int scsi_curr_dev; /* current device */
61
62static block_dev_desc_t scsi_dev_desc[CFG_SCSI_MAX_DEVICE];
63
64/********************************************************************************
65 * forward declerations of some Setup Routines
66 */
67void scsi_setup_test_unit_ready(ccb * pccb);
68void scsi_setup_read_capacity(ccb * pccb);
69void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks);
70void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks);
71void scsi_setup_inquiry(ccb * pccb);
72void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
73
74
Grant Likelyeb867a72007-02-20 09:05:45 +010075ulong scsi_read(int device, ulong blknr, ulong blkcnt, void *buffer);
wdenke887afc2002-08-27 09:44:07 +000076
77
78/*********************************************************************************
79 * (re)-scan the scsi bus and reports scsi device info
80 * to the user if mode = 1
81 */
82void scsi_scan(int mode)
83{
84 unsigned char i,perq,modi,lun;
85 unsigned long capacity,blksz;
86 ccb* pccb=(ccb *)&tempccb;
87
88 if(mode==1) {
89 printf("scanning bus for devices...\n");
90 }
91 for(i=0;i<CFG_SCSI_MAX_DEVICE;i++) {
92 scsi_dev_desc[i].target=0xff;
93 scsi_dev_desc[i].lun=0xff;
94 scsi_dev_desc[i].lba=0;
95 scsi_dev_desc[i].blksz=0;
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 }
106 scsi_max_devs=0;
107 for(i=0;i<CFG_SCSI_MAX_SCSI_ID;i++) {
108 pccb->target=i;
109 for(lun=0;lun<CFG_SCSI_MAX_LUN;lun++) {
110 pccb->lun=lun;
111 pccb->pdata=(unsigned char *)&tempbuff;
112 pccb->datalen=512;
113 scsi_setup_inquiry(pccb);
114 if(scsi_exec(pccb)!=TRUE) {
115 if(pccb->contr_stat==SCSI_SEL_TIME_OUT) {
wdenk1a344f22005-02-03 23:00:49 +0000116 debug ("Selection timeout ID %d\n",pccb->target);
wdenke887afc2002-08-27 09:44:07 +0000117 continue; /* selection timeout => assuming no device present */
118 }
119 scsi_print_error(pccb);
120 continue;
121 }
122 perq=tempbuff[0];
123 modi=tempbuff[1];
124 if((perq & 0x1f)==0x1f) {
125 continue; /* skip unknown devices */
126 }
127 if((modi&0x80)==0x80) /* drive is removable */
128 scsi_dev_desc[scsi_max_devs].removable=TRUE;
129 /* get info for this device */
Stefan Roese2309c132007-11-17 07:58:25 +0100130 scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].vendor[0],
131 &tempbuff[8], 8);
132 scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].product[0],
133 &tempbuff[16], 16);
134 scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].revision[0],
135 &tempbuff[32], 4);
wdenke887afc2002-08-27 09:44:07 +0000136 scsi_dev_desc[scsi_max_devs].target=pccb->target;
137 scsi_dev_desc[scsi_max_devs].lun=pccb->lun;
138
139 pccb->datalen=0;
140 scsi_setup_test_unit_ready(pccb);
141 if(scsi_exec(pccb)!=TRUE) {
142 if(scsi_dev_desc[scsi_max_devs].removable==TRUE) {
143 scsi_dev_desc[scsi_max_devs].type=perq;
144 goto removable;
145 }
146 scsi_print_error(pccb);
147 continue;
148 }
149 pccb->datalen=8;
150 scsi_setup_read_capacity(pccb);
151 if(scsi_exec(pccb)!=TRUE) {
152 scsi_print_error(pccb);
153 continue;
154 }
155 capacity=((unsigned long)tempbuff[0]<<24)|((unsigned long)tempbuff[1]<<16)|
156 ((unsigned long)tempbuff[2]<<8)|((unsigned long)tempbuff[3]);
157 blksz=((unsigned long)tempbuff[4]<<24)|((unsigned long)tempbuff[5]<<16)|
158 ((unsigned long)tempbuff[6]<<8)|((unsigned long)tempbuff[7]);
159 scsi_dev_desc[scsi_max_devs].lba=capacity;
160 scsi_dev_desc[scsi_max_devs].blksz=blksz;
161 scsi_dev_desc[scsi_max_devs].type=perq;
162 init_part(&scsi_dev_desc[scsi_max_devs]);
163removable:
164 if(mode==1) {
165 printf (" Device %d: ", scsi_max_devs);
166 dev_print(&scsi_dev_desc[scsi_max_devs]);
167 } /* if mode */
168 scsi_max_devs++;
169 } /* next LUN */
170 }
171 if(scsi_max_devs>0)
172 scsi_curr_dev=0;
173 else
174 scsi_curr_dev=-1;
175}
176
177
wdenke887afc2002-08-27 09:44:07 +0000178void scsi_init(void)
179{
180 int busdevfunc;
181
182 busdevfunc=pci_find_device(SCSI_VEND_ID,SCSI_DEV_ID,0); /* get PCI Device ID */
183 if(busdevfunc==-1) {
184 printf("Error SCSI Controller (%04X,%04X) not found\n",SCSI_VEND_ID,SCSI_DEV_ID);
185 return;
186 }
187#ifdef DEBUG
188 else {
189 printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",SCSI_VEND_ID,SCSI_DEV_ID,(busdevfunc>>16)&0xFF,(busdevfunc>>11)&0x1F,(busdevfunc>>8)&0x7);
190 }
191#endif
192 scsi_low_level_init(busdevfunc);
193 scsi_scan(1);
194}
195
196block_dev_desc_t * scsi_get_dev(int dev)
197{
Grant Likely735dd972007-02-20 09:04:34 +0100198 return (dev < CFG_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL;
wdenke887afc2002-08-27 09:44:07 +0000199}
200
201
wdenke887afc2002-08-27 09:44:07 +0000202/******************************************************************************
203 * scsi boot command intepreter. Derived from diskboot
204 */
205int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
206{
207 char *boot_device = NULL;
208 char *ep;
209 int dev, part = 0;
wdenk1a344f22005-02-03 23:00:49 +0000210 ulong addr, cnt, checksum;
wdenke887afc2002-08-27 09:44:07 +0000211 disk_partition_t info;
212 image_header_t *hdr;
213 int rcode = 0;
214
215 switch (argc) {
216 case 1:
217 addr = CFG_LOAD_ADDR;
218 boot_device = getenv ("bootdevice");
219 break;
220 case 2:
221 addr = simple_strtoul(argv[1], NULL, 16);
222 boot_device = getenv ("bootdevice");
223 break;
224 case 3:
225 addr = simple_strtoul(argv[1], NULL, 16);
226 boot_device = argv[2];
227 break;
228 default:
229 printf ("Usage:\n%s\n", cmdtp->usage);
230 return 1;
231 }
232
233 if (!boot_device) {
234 puts ("\n** No boot device **\n");
235 return 1;
236 }
237
238 dev = simple_strtoul(boot_device, &ep, 16);
239 printf("booting from dev %d\n",dev);
240 if (scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
241 printf ("\n** Device %d not available\n", dev);
242 return 1;
243 }
244
245 if (*ep) {
246 if (*ep != ':') {
247 puts ("\n** Invalid boot device, use `dev[:part]' **\n");
248 return 1;
249 }
250 part = simple_strtoul(++ep, NULL, 16);
251 }
Denis Peter78827512007-04-13 09:13:33 +0200252 if (get_partition_info (&scsi_dev_desc[dev], part, &info)) {
wdenke887afc2002-08-27 09:44:07 +0000253 printf("error reading partinfo\n");
254 return 1;
255 }
Wolfgang Denk77ddac92005-10-13 16:45:02 +0200256 if ((strncmp((char *)(info.type), BOOT_PART_TYPE, sizeof(info.type)) != 0) &&
257 (strncmp((char *)(info.type), BOOT_PART_COMP, sizeof(info.type)) != 0)) {
wdenke887afc2002-08-27 09:44:07 +0000258 printf ("\n** Invalid partition type \"%.32s\""
259 " (expect \"" BOOT_PART_TYPE "\")\n",
260 info.type);
261 return 1;
262 }
263
264 printf ("\nLoading from SCSI device %d, partition %d: "
265 "Name: %.32s Type: %.32s\n",
266 dev, part, info.name, info.type);
267
wdenk1a344f22005-02-03 23:00:49 +0000268 debug ("First Block: %ld, # of blocks: %ld, Block Size: %ld\n",
wdenke887afc2002-08-27 09:44:07 +0000269 info.start, info.size, info.blksz);
270
271 if (scsi_read (dev, info.start, 1, (ulong *)addr) != 1) {
272 printf ("** Read error on %d:%d\n", dev, part);
273 return 1;
274 }
275
276 hdr = (image_header_t *)addr;
277
wdenkf8883cb2005-02-04 15:38:08 +0000278 if (ntohl(hdr->ih_magic) == IH_MAGIC) {
wdenke887afc2002-08-27 09:44:07 +0000279 printf("\n** Bad Magic Number **\n");
280 return 1;
281 }
282
wdenk1a344f22005-02-03 23:00:49 +0000283 checksum = ntohl(hdr->ih_hcrc);
284 hdr->ih_hcrc = 0;
285
Wolfgang Denk77ddac92005-10-13 16:45:02 +0200286 if (crc32 (0, (uchar *)hdr, sizeof(image_header_t)) != checksum) {
wdenk1a344f22005-02-03 23:00:49 +0000287 puts ("\n** Bad Header Checksum **\n");
288 return 1;
289 }
wdenk2f916942005-02-04 21:33:05 +0000290 hdr->ih_hcrc = htonl(checksum); /* restore checksum for later use */
wdenk1a344f22005-02-03 23:00:49 +0000291
292 print_image_hdr (hdr);
wdenkf8883cb2005-02-04 15:38:08 +0000293 cnt = (ntohl(hdr->ih_size) + sizeof(image_header_t));
wdenk1a344f22005-02-03 23:00:49 +0000294 cnt += info.blksz - 1;
295 cnt /= info.blksz;
296 cnt -= 1;
297
wdenke887afc2002-08-27 09:44:07 +0000298 if (scsi_read (dev, info.start+1, cnt,
299 (ulong *)(addr+info.blksz)) != cnt) {
300 printf ("** Read error on %d:%d\n", dev, part);
301 return 1;
302 }
303 /* Loading ok, update default load address */
304 load_addr = addr;
305
306 flush_cache (addr, (cnt+1)*info.blksz);
307
308 /* Check if we should attempt an auto-start */
309 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
310 char *local_args[2];
311 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
312 local_args[0] = argv[0];
313 local_args[1] = NULL;
314 printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
315 rcode = do_bootm (cmdtp, 0, 1, local_args);
316 }
317 return rcode;
318}
319
320/*********************************************************************************
321 * scsi command intepreter
322 */
323int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
324{
325 switch (argc) {
326 case 0:
327 case 1: printf ("Usage:\n%s\n", cmdtp->usage); return 1;
328 case 2:
329 if (strncmp(argv[1],"res",3) == 0) {
330 printf("\nReset SCSI\n");
331 scsi_bus_reset();
332 scsi_scan(1);
333 return 0;
334 }
335 if (strncmp(argv[1],"inf",3) == 0) {
336 int i;
337 for (i=0; i<CFG_SCSI_MAX_DEVICE; ++i) {
338 if(scsi_dev_desc[i].type==DEV_TYPE_UNKNOWN)
339 continue; /* list only known devices */
340 printf ("SCSI dev. %d: ", i);
341 dev_print(&scsi_dev_desc[i]);
342 }
343 return 0;
344 }
345 if (strncmp(argv[1],"dev",3) == 0) {
346 if ((scsi_curr_dev < 0) || (scsi_curr_dev >= CFG_SCSI_MAX_DEVICE)) {
347 printf("\nno SCSI devices available\n");
348 return 1;
349 }
350 printf ("\n Device %d: ", scsi_curr_dev);
351 dev_print(&scsi_dev_desc[scsi_curr_dev]);
352 return 0;
353 }
354 if (strncmp(argv[1],"scan",4) == 0) {
355 scsi_scan(1);
356 return 0;
357 }
358 if (strncmp(argv[1],"part",4) == 0) {
359 int dev, ok;
360 for (ok=0, dev=0; dev<CFG_SCSI_MAX_DEVICE; ++dev) {
361 if (scsi_dev_desc[dev].type!=DEV_TYPE_UNKNOWN) {
362 ok++;
363 if (dev)
364 printf("\n");
wdenk1a344f22005-02-03 23:00:49 +0000365 debug ("print_part of %x\n",dev);
wdenke887afc2002-08-27 09:44:07 +0000366 print_part(&scsi_dev_desc[dev]);
367 }
368 }
369 if (!ok)
370 printf("\nno SCSI devices available\n");
371 return 1;
372 }
373 printf ("Usage:\n%s\n", cmdtp->usage);
374 return 1;
375 case 3:
376 if (strncmp(argv[1],"dev",3) == 0) {
377 int dev = (int)simple_strtoul(argv[2], NULL, 10);
378 printf ("\nSCSI device %d: ", dev);
379 if (dev >= CFG_SCSI_MAX_DEVICE) {
380 printf("unknown device\n");
381 return 1;
382 }
383 printf ("\n Device %d: ", dev);
384 dev_print(&scsi_dev_desc[dev]);
385 if(scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
386 return 1;
387 }
388 scsi_curr_dev = dev;
389 printf("... is now current device\n");
390 return 0;
391 }
392 if (strncmp(argv[1],"part",4) == 0) {
393 int dev = (int)simple_strtoul(argv[2], NULL, 10);
394 if(scsi_dev_desc[dev].type != DEV_TYPE_UNKNOWN) {
395 print_part(&scsi_dev_desc[dev]);
396 }
397 else {
398 printf ("\nSCSI device %d not available\n", dev);
399 }
400 return 1;
401 }
402 printf ("Usage:\n%s\n", cmdtp->usage);
403 return 1;
404 default:
405 /* at least 4 args */
406 if (strcmp(argv[1],"read") == 0) {
407 ulong addr = simple_strtoul(argv[2], NULL, 16);
408 ulong blk = simple_strtoul(argv[3], NULL, 16);
409 ulong cnt = simple_strtoul(argv[4], NULL, 16);
410 ulong n;
411 printf ("\nSCSI read: device %d block # %ld, count %ld ... ",
412 scsi_curr_dev, blk, cnt);
413 n = scsi_read(scsi_curr_dev, blk, cnt, (ulong *)addr);
414 printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR");
415 return 0;
416 }
417 } /* switch */
418 printf ("Usage:\n%s\n", cmdtp->usage);
419 return 1;
420}
421
422/****************************************************************************************
423 * scsi_read
424 */
425
426#define SCSI_MAX_READ_BLK 0xFFFF /* almost the maximum amount of the scsi_ext command.. */
427
Grant Likelyeb867a72007-02-20 09:05:45 +0100428ulong scsi_read(int device, ulong blknr, ulong blkcnt, void *buffer)
wdenke887afc2002-08-27 09:44:07 +0000429{
430 ulong start,blks, buf_addr;
431 unsigned short smallblks;
432 ccb* pccb=(ccb *)&tempccb;
433 device&=0xff;
434 /* Setup device
435 */
436 pccb->target=scsi_dev_desc[device].target;
437 pccb->lun=scsi_dev_desc[device].lun;
438 buf_addr=(unsigned long)buffer;
439 start=blknr;
440 blks=blkcnt;
wdenk1a344f22005-02-03 23:00:49 +0000441 debug ("\nscsi_read: dev %d startblk %lx, blccnt %lx buffer %lx\n",device,start,blks,(unsigned long)buffer);
wdenke887afc2002-08-27 09:44:07 +0000442 do {
443 pccb->pdata=(unsigned char *)buf_addr;
444 if(blks>SCSI_MAX_READ_BLK) {
445 pccb->datalen=scsi_dev_desc[device].blksz * SCSI_MAX_READ_BLK;
446 smallblks=SCSI_MAX_READ_BLK;
447 scsi_setup_read_ext(pccb,start,smallblks);
448 start+=SCSI_MAX_READ_BLK;
449 blks-=SCSI_MAX_READ_BLK;
450 }
451 else {
452 pccb->datalen=scsi_dev_desc[device].blksz * blks;
453 smallblks=(unsigned short) blks;
454 scsi_setup_read_ext(pccb,start,smallblks);
455 start+=blks;
456 blks=0;
457 }
wdenk1a344f22005-02-03 23:00:49 +0000458 debug ("scsi_read_ext: startblk %lx, blccnt %x buffer %lx\n",start,smallblks,buf_addr);
wdenke887afc2002-08-27 09:44:07 +0000459 if(scsi_exec(pccb)!=TRUE) {
460 scsi_print_error(pccb);
461 blkcnt-=blks;
462 break;
463 }
464 buf_addr+=pccb->datalen;
465 } while(blks!=0);
wdenk1a344f22005-02-03 23:00:49 +0000466 debug ("scsi_read_ext: end startblk %lx, blccnt %x buffer %lx\n",start,smallblks,buf_addr);
wdenke887afc2002-08-27 09:44:07 +0000467 return(blkcnt);
468}
469
470/* copy src to dest, skipping leading and trailing blanks
471 * and null terminate the string
472 */
473void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len)
474{
475 int start,end;
476
477 start=0;
478 while(start<len) {
479 if(src[start]!=' ')
480 break;
481 start++;
482 }
483 end=len-1;
484 while(end>start) {
485 if(src[end]!=' ')
486 break;
487 end--;
488 }
489 for( ; start<=end; start++) {
490 *dest++=src[start];
491 }
492 *dest='\0';
493}
494
495
wdenke887afc2002-08-27 09:44:07 +0000496/* Trim trailing blanks, and NUL-terminate string
497 */
498void scsi_trim_trail (unsigned char *str, unsigned int len)
499{
500 unsigned char *p = str + len - 1;
501
502 while (len-- > 0) {
503 *p-- = '\0';
504 if (*p != ' ') {
505 return;
506 }
507 }
508}
509
510
511/************************************************************************************
512 * Some setup (fill-in) routines
513 */
514void scsi_setup_test_unit_ready(ccb * pccb)
515{
516 pccb->cmd[0]=SCSI_TST_U_RDY;
517 pccb->cmd[1]=pccb->lun<<5;
518 pccb->cmd[2]=0;
519 pccb->cmd[3]=0;
520 pccb->cmd[4]=0;
521 pccb->cmd[5]=0;
522 pccb->cmdlen=6;
523 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
524}
525
526void scsi_setup_read_capacity(ccb * pccb)
527{
528 pccb->cmd[0]=SCSI_RD_CAPAC;
529 pccb->cmd[1]=pccb->lun<<5;
530 pccb->cmd[2]=0;
531 pccb->cmd[3]=0;
532 pccb->cmd[4]=0;
533 pccb->cmd[5]=0;
534 pccb->cmd[6]=0;
535 pccb->cmd[7]=0;
536 pccb->cmd[8]=0;
537 pccb->cmd[9]=0;
538 pccb->cmdlen=10;
539 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
540
541}
542
543void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks)
544{
545 pccb->cmd[0]=SCSI_READ10;
546 pccb->cmd[1]=pccb->lun<<5;
547 pccb->cmd[2]=((unsigned char) (start>>24))&0xff;
548 pccb->cmd[3]=((unsigned char) (start>>16))&0xff;
549 pccb->cmd[4]=((unsigned char) (start>>8))&0xff;
550 pccb->cmd[5]=((unsigned char) (start))&0xff;
551 pccb->cmd[6]=0;
552 pccb->cmd[7]=((unsigned char) (blocks>>8))&0xff;
553 pccb->cmd[8]=(unsigned char) blocks & 0xff;
554 pccb->cmd[6]=0;
555 pccb->cmdlen=10;
556 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
wdenk1a344f22005-02-03 23:00:49 +0000557 debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
wdenke887afc2002-08-27 09:44:07 +0000558 pccb->cmd[0],pccb->cmd[1],
559 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4],pccb->cmd[5],
560 pccb->cmd[7],pccb->cmd[8]);
561}
562
563void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks)
564{
565 pccb->cmd[0]=SCSI_READ6;
566 pccb->cmd[1]=pccb->lun<<5 | (((unsigned char)(start>>16))&0x1f);
567 pccb->cmd[2]=((unsigned char) (start>>8))&0xff;
568 pccb->cmd[3]=((unsigned char) (start))&0xff;
569 pccb->cmd[4]=(unsigned char) blocks & 0xff;
570 pccb->cmd[5]=0;
571 pccb->cmdlen=6;
572 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
wdenk1a344f22005-02-03 23:00:49 +0000573 debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n",
wdenke887afc2002-08-27 09:44:07 +0000574 pccb->cmd[0],pccb->cmd[1],
575 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4]);
576}
577
578
579void scsi_setup_inquiry(ccb * pccb)
580{
581 pccb->cmd[0]=SCSI_INQUIRY;
582 pccb->cmd[1]=pccb->lun<<5;
583 pccb->cmd[2]=0;
584 pccb->cmd[3]=0;
585 if(pccb->datalen>255)
586 pccb->cmd[4]=255;
587 else
588 pccb->cmd[4]=(unsigned char)pccb->datalen;
589 pccb->cmd[5]=0;
590 pccb->cmdlen=6;
591 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
592}
593
Wolfgang Denk460c3222005-08-04 01:14:12 +0200594
595U_BOOT_CMD(
596 scsi, 5, 1, do_scsi,
597 "scsi - SCSI sub-system\n",
598 "reset - reset SCSI controller\n"
599 "scsi info - show available SCSI devices\n"
600 "scsi scan - (re-)scan SCSI bus\n"
601 "scsi device [dev] - show or set current device\n"
602 "scsi part [dev] - print partition table of one or all SCSI devices\n"
603 "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
604 " to memory address `addr'\n"
605);
606
607U_BOOT_CMD(
608 scsiboot, 3, 1, do_scsiboot,
609 "scsiboot- boot from SCSI device\n",
610 "loadAddr dev:part\n"
611);