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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;
Marian Balakowiczb97a2a02008-01-08 18:14:09 +0100210 ulong addr, cnt;
wdenke887afc2002-08-27 09:44:07 +0000211 disk_partition_t info;
212 image_header_t *hdr;
213 int rcode = 0;
Marian Balakowicz09475f72008-03-12 10:33:01 +0100214#if defined(CONFIG_FIT)
215 const void *fit_hdr;
216#endif
wdenke887afc2002-08-27 09:44:07 +0000217
218 switch (argc) {
219 case 1:
220 addr = CFG_LOAD_ADDR;
221 boot_device = getenv ("bootdevice");
222 break;
223 case 2:
224 addr = simple_strtoul(argv[1], NULL, 16);
225 boot_device = getenv ("bootdevice");
226 break;
227 case 3:
228 addr = simple_strtoul(argv[1], NULL, 16);
229 boot_device = argv[2];
230 break;
231 default:
232 printf ("Usage:\n%s\n", cmdtp->usage);
233 return 1;
234 }
235
236 if (!boot_device) {
237 puts ("\n** No boot device **\n");
238 return 1;
239 }
240
241 dev = simple_strtoul(boot_device, &ep, 16);
242 printf("booting from dev %d\n",dev);
243 if (scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
244 printf ("\n** Device %d not available\n", dev);
245 return 1;
246 }
247
248 if (*ep) {
249 if (*ep != ':') {
250 puts ("\n** Invalid boot device, use `dev[:part]' **\n");
251 return 1;
252 }
253 part = simple_strtoul(++ep, NULL, 16);
254 }
Denis Peter78827512007-04-13 09:13:33 +0200255 if (get_partition_info (&scsi_dev_desc[dev], part, &info)) {
wdenke887afc2002-08-27 09:44:07 +0000256 printf("error reading partinfo\n");
257 return 1;
258 }
Wolfgang Denk77ddac92005-10-13 16:45:02 +0200259 if ((strncmp((char *)(info.type), BOOT_PART_TYPE, sizeof(info.type)) != 0) &&
260 (strncmp((char *)(info.type), BOOT_PART_COMP, sizeof(info.type)) != 0)) {
wdenke887afc2002-08-27 09:44:07 +0000261 printf ("\n** Invalid partition type \"%.32s\""
262 " (expect \"" BOOT_PART_TYPE "\")\n",
263 info.type);
264 return 1;
265 }
266
267 printf ("\nLoading from SCSI device %d, partition %d: "
268 "Name: %.32s Type: %.32s\n",
269 dev, part, info.name, info.type);
270
wdenk1a344f22005-02-03 23:00:49 +0000271 debug ("First Block: %ld, # of blocks: %ld, Block Size: %ld\n",
wdenke887afc2002-08-27 09:44:07 +0000272 info.start, info.size, info.blksz);
273
274 if (scsi_read (dev, info.start, 1, (ulong *)addr) != 1) {
275 printf ("** Read error on %d:%d\n", dev, part);
276 return 1;
277 }
278
Marian Balakowicz9a4daad2008-02-29 14:58:34 +0100279 switch (genimg_get_format ((void *)addr)) {
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100280 case IMAGE_FORMAT_LEGACY:
281 hdr = (image_header_t *)addr;
wdenke887afc2002-08-27 09:44:07 +0000282
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100283 if (!image_check_hcrc (hdr)) {
284 puts ("\n** Bad Header Checksum **\n");
285 return 1;
286 }
287
288 image_print_contents (hdr);
289 cnt = image_get_image_size (hdr);
290 break;
291#if defined(CONFIG_FIT)
292 case IMAGE_FORMAT_FIT:
Marian Balakowicz09475f72008-03-12 10:33:01 +0100293 fit_hdr = (const void *)addr;
294 if (!fit_check_format (fit_hdr)) {
295 puts ("** Bad FIT image format\n");
296 return 1;
297 }
298 puts ("Fit image detected...\n");
299
300 cnt = fit_get_size (fit_hdr);
301 break;
Marian Balakowiczd5934ad2008-02-04 08:28:09 +0100302#endif
303 default:
304 puts ("** Unknown image type\n");
wdenke887afc2002-08-27 09:44:07 +0000305 return 1;
306 }
307
wdenk1a344f22005-02-03 23:00:49 +0000308 cnt += info.blksz - 1;
309 cnt /= info.blksz;
310 cnt -= 1;
311
wdenke887afc2002-08-27 09:44:07 +0000312 if (scsi_read (dev, info.start+1, cnt,
313 (ulong *)(addr+info.blksz)) != cnt) {
314 printf ("** Read error on %d:%d\n", dev, part);
315 return 1;
316 }
Marian Balakowicz09475f72008-03-12 10:33:01 +0100317
318#if defined(CONFIG_FIT)
319 /* This cannot be done earlier, we need complete FIT image in RAM first */
320 if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT)
321 fit_print_contents ((const void *)addr);
322#endif
323
wdenke887afc2002-08-27 09:44:07 +0000324 /* Loading ok, update default load address */
325 load_addr = addr;
326
327 flush_cache (addr, (cnt+1)*info.blksz);
328
329 /* Check if we should attempt an auto-start */
330 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
331 char *local_args[2];
332 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
333 local_args[0] = argv[0];
334 local_args[1] = NULL;
335 printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
336 rcode = do_bootm (cmdtp, 0, 1, local_args);
337 }
338 return rcode;
339}
340
341/*********************************************************************************
342 * scsi command intepreter
343 */
344int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
345{
346 switch (argc) {
347 case 0:
348 case 1: printf ("Usage:\n%s\n", cmdtp->usage); return 1;
349 case 2:
350 if (strncmp(argv[1],"res",3) == 0) {
351 printf("\nReset SCSI\n");
352 scsi_bus_reset();
353 scsi_scan(1);
354 return 0;
355 }
356 if (strncmp(argv[1],"inf",3) == 0) {
357 int i;
358 for (i=0; i<CFG_SCSI_MAX_DEVICE; ++i) {
359 if(scsi_dev_desc[i].type==DEV_TYPE_UNKNOWN)
360 continue; /* list only known devices */
361 printf ("SCSI dev. %d: ", i);
362 dev_print(&scsi_dev_desc[i]);
363 }
364 return 0;
365 }
366 if (strncmp(argv[1],"dev",3) == 0) {
367 if ((scsi_curr_dev < 0) || (scsi_curr_dev >= CFG_SCSI_MAX_DEVICE)) {
368 printf("\nno SCSI devices available\n");
369 return 1;
370 }
371 printf ("\n Device %d: ", scsi_curr_dev);
372 dev_print(&scsi_dev_desc[scsi_curr_dev]);
373 return 0;
374 }
375 if (strncmp(argv[1],"scan",4) == 0) {
376 scsi_scan(1);
377 return 0;
378 }
379 if (strncmp(argv[1],"part",4) == 0) {
380 int dev, ok;
381 for (ok=0, dev=0; dev<CFG_SCSI_MAX_DEVICE; ++dev) {
382 if (scsi_dev_desc[dev].type!=DEV_TYPE_UNKNOWN) {
383 ok++;
384 if (dev)
385 printf("\n");
wdenk1a344f22005-02-03 23:00:49 +0000386 debug ("print_part of %x\n",dev);
wdenke887afc2002-08-27 09:44:07 +0000387 print_part(&scsi_dev_desc[dev]);
388 }
389 }
390 if (!ok)
391 printf("\nno SCSI devices available\n");
392 return 1;
393 }
394 printf ("Usage:\n%s\n", cmdtp->usage);
395 return 1;
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200396 case 3:
wdenke887afc2002-08-27 09:44:07 +0000397 if (strncmp(argv[1],"dev",3) == 0) {
398 int dev = (int)simple_strtoul(argv[2], NULL, 10);
399 printf ("\nSCSI device %d: ", dev);
400 if (dev >= CFG_SCSI_MAX_DEVICE) {
401 printf("unknown device\n");
402 return 1;
403 }
404 printf ("\n Device %d: ", dev);
405 dev_print(&scsi_dev_desc[dev]);
406 if(scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
407 return 1;
408 }
409 scsi_curr_dev = dev;
410 printf("... is now current device\n");
411 return 0;
412 }
413 if (strncmp(argv[1],"part",4) == 0) {
414 int dev = (int)simple_strtoul(argv[2], NULL, 10);
415 if(scsi_dev_desc[dev].type != DEV_TYPE_UNKNOWN) {
416 print_part(&scsi_dev_desc[dev]);
417 }
418 else {
419 printf ("\nSCSI device %d not available\n", dev);
420 }
421 return 1;
422 }
423 printf ("Usage:\n%s\n", cmdtp->usage);
424 return 1;
425 default:
426 /* at least 4 args */
427 if (strcmp(argv[1],"read") == 0) {
428 ulong addr = simple_strtoul(argv[2], NULL, 16);
429 ulong blk = simple_strtoul(argv[3], NULL, 16);
430 ulong cnt = simple_strtoul(argv[4], NULL, 16);
431 ulong n;
432 printf ("\nSCSI read: device %d block # %ld, count %ld ... ",
433 scsi_curr_dev, blk, cnt);
434 n = scsi_read(scsi_curr_dev, blk, cnt, (ulong *)addr);
435 printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR");
436 return 0;
437 }
438 } /* switch */
439 printf ("Usage:\n%s\n", cmdtp->usage);
440 return 1;
441}
442
443/****************************************************************************************
444 * scsi_read
445 */
446
447#define SCSI_MAX_READ_BLK 0xFFFF /* almost the maximum amount of the scsi_ext command.. */
448
Grant Likelyeb867a72007-02-20 09:05:45 +0100449ulong scsi_read(int device, ulong blknr, ulong blkcnt, void *buffer)
wdenke887afc2002-08-27 09:44:07 +0000450{
451 ulong start,blks, 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;
wdenk1a344f22005-02-03 23:00:49 +0000462 debug ("\nscsi_read: dev %d startblk %lx, blccnt %lx buffer %lx\n",device,start,blks,(unsigned long)buffer);
wdenke887afc2002-08-27 09:44:07 +0000463 do {
464 pccb->pdata=(unsigned char *)buf_addr;
465 if(blks>SCSI_MAX_READ_BLK) {
466 pccb->datalen=scsi_dev_desc[device].blksz * SCSI_MAX_READ_BLK;
467 smallblks=SCSI_MAX_READ_BLK;
468 scsi_setup_read_ext(pccb,start,smallblks);
469 start+=SCSI_MAX_READ_BLK;
470 blks-=SCSI_MAX_READ_BLK;
471 }
472 else {
473 pccb->datalen=scsi_dev_desc[device].blksz * blks;
474 smallblks=(unsigned short) blks;
475 scsi_setup_read_ext(pccb,start,smallblks);
476 start+=blks;
477 blks=0;
478 }
wdenk1a344f22005-02-03 23:00:49 +0000479 debug ("scsi_read_ext: startblk %lx, blccnt %x buffer %lx\n",start,smallblks,buf_addr);
wdenke887afc2002-08-27 09:44:07 +0000480 if(scsi_exec(pccb)!=TRUE) {
481 scsi_print_error(pccb);
482 blkcnt-=blks;
483 break;
484 }
485 buf_addr+=pccb->datalen;
486 } while(blks!=0);
wdenk1a344f22005-02-03 23:00:49 +0000487 debug ("scsi_read_ext: end startblk %lx, blccnt %x buffer %lx\n",start,smallblks,buf_addr);
wdenke887afc2002-08-27 09:44:07 +0000488 return(blkcnt);
489}
490
491/* copy src to dest, skipping leading and trailing blanks
492 * and null terminate the string
493 */
494void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len)
495{
496 int start,end;
497
498 start=0;
499 while(start<len) {
500 if(src[start]!=' ')
501 break;
502 start++;
503 }
504 end=len-1;
505 while(end>start) {
506 if(src[end]!=' ')
507 break;
508 end--;
509 }
510 for( ; start<=end; start++) {
511 *dest++=src[start];
512 }
513 *dest='\0';
514}
515
516
wdenke887afc2002-08-27 09:44:07 +0000517/* Trim trailing blanks, and NUL-terminate string
518 */
519void scsi_trim_trail (unsigned char *str, unsigned int len)
520{
521 unsigned char *p = str + len - 1;
522
523 while (len-- > 0) {
524 *p-- = '\0';
525 if (*p != ' ') {
526 return;
527 }
528 }
529}
530
531
532/************************************************************************************
533 * Some setup (fill-in) routines
534 */
535void scsi_setup_test_unit_ready(ccb * pccb)
536{
537 pccb->cmd[0]=SCSI_TST_U_RDY;
538 pccb->cmd[1]=pccb->lun<<5;
539 pccb->cmd[2]=0;
540 pccb->cmd[3]=0;
541 pccb->cmd[4]=0;
542 pccb->cmd[5]=0;
543 pccb->cmdlen=6;
544 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
545}
546
547void scsi_setup_read_capacity(ccb * pccb)
548{
549 pccb->cmd[0]=SCSI_RD_CAPAC;
550 pccb->cmd[1]=pccb->lun<<5;
551 pccb->cmd[2]=0;
552 pccb->cmd[3]=0;
553 pccb->cmd[4]=0;
554 pccb->cmd[5]=0;
555 pccb->cmd[6]=0;
556 pccb->cmd[7]=0;
557 pccb->cmd[8]=0;
558 pccb->cmd[9]=0;
559 pccb->cmdlen=10;
560 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
561
562}
563
564void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks)
565{
566 pccb->cmd[0]=SCSI_READ10;
567 pccb->cmd[1]=pccb->lun<<5;
568 pccb->cmd[2]=((unsigned char) (start>>24))&0xff;
569 pccb->cmd[3]=((unsigned char) (start>>16))&0xff;
570 pccb->cmd[4]=((unsigned char) (start>>8))&0xff;
571 pccb->cmd[5]=((unsigned char) (start))&0xff;
572 pccb->cmd[6]=0;
573 pccb->cmd[7]=((unsigned char) (blocks>>8))&0xff;
574 pccb->cmd[8]=(unsigned char) blocks & 0xff;
575 pccb->cmd[6]=0;
576 pccb->cmdlen=10;
577 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
wdenk1a344f22005-02-03 23:00:49 +0000578 debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
wdenke887afc2002-08-27 09:44:07 +0000579 pccb->cmd[0],pccb->cmd[1],
580 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4],pccb->cmd[5],
581 pccb->cmd[7],pccb->cmd[8]);
582}
583
584void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks)
585{
586 pccb->cmd[0]=SCSI_READ6;
587 pccb->cmd[1]=pccb->lun<<5 | (((unsigned char)(start>>16))&0x1f);
588 pccb->cmd[2]=((unsigned char) (start>>8))&0xff;
589 pccb->cmd[3]=((unsigned char) (start))&0xff;
590 pccb->cmd[4]=(unsigned char) blocks & 0xff;
591 pccb->cmd[5]=0;
592 pccb->cmdlen=6;
593 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
wdenk1a344f22005-02-03 23:00:49 +0000594 debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n",
wdenke887afc2002-08-27 09:44:07 +0000595 pccb->cmd[0],pccb->cmd[1],
596 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4]);
597}
598
599
600void scsi_setup_inquiry(ccb * pccb)
601{
602 pccb->cmd[0]=SCSI_INQUIRY;
603 pccb->cmd[1]=pccb->lun<<5;
604 pccb->cmd[2]=0;
605 pccb->cmd[3]=0;
606 if(pccb->datalen>255)
607 pccb->cmd[4]=255;
608 else
609 pccb->cmd[4]=(unsigned char)pccb->datalen;
610 pccb->cmd[5]=0;
611 pccb->cmdlen=6;
612 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
613}
614
Wolfgang Denk460c3222005-08-04 01:14:12 +0200615
616U_BOOT_CMD(
617 scsi, 5, 1, do_scsi,
618 "scsi - SCSI sub-system\n",
619 "reset - reset SCSI controller\n"
620 "scsi info - show available SCSI devices\n"
621 "scsi scan - (re-)scan SCSI bus\n"
622 "scsi device [dev] - show or set current device\n"
623 "scsi part [dev] - print partition table of one or all SCSI devices\n"
624 "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
625 " to memory address `addr'\n"
626);
627
628U_BOOT_CMD(
629 scsiboot, 3, 1, do_scsiboot,
630 "scsiboot- boot from SCSI device\n",
631 "loadAddr dev:part\n"
632);