blob: 22d0119814fbf491600728a074dc9bf947dbace8 [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
Rob Herring942e3142011-07-06 16:13:36 +000049#elif !defined(CONFIG_SCSI_AHCI_PLAT)
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
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020062static block_dev_desc_t scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE];
wdenke887afc2002-08-27 09:44:07 +000063
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 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020091 for(i=0;i<CONFIG_SYS_SCSI_MAX_DEVICE;i++) {
wdenke887afc2002-08-27 09:44:07 +000092 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;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200107 for(i=0;i<CONFIG_SYS_SCSI_MAX_SCSI_ID;i++) {
wdenke887afc2002-08-27 09:44:07 +0000108 pccb->target=i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200109 for(lun=0;lun<CONFIG_SYS_SCSI_MAX_LUN;lun++) {
wdenke887afc2002-08-27 09:44:07 +0000110 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
Wolfgang Denkd0ff51b2008-07-14 15:19:07 +0200174 scsi_curr_dev = -1;
wdenke887afc2002-08-27 09:44:07 +0000175}
176
Rob Herring942e3142011-07-06 16:13:36 +0000177#ifdef CONFIG_PCI
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}
Rob Herring942e3142011-07-06 16:13:36 +0000195#endif
wdenke887afc2002-08-27 09:44:07 +0000196
Matthew McClintockdf3fc522011-05-24 05:31:19 +0000197#ifdef CONFIG_PARTITIONS
wdenke887afc2002-08-27 09:44:07 +0000198block_dev_desc_t * scsi_get_dev(int dev)
199{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200200 return (dev < CONFIG_SYS_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL;
wdenke887afc2002-08-27 09:44:07 +0000201}
Matthew McClintockdf3fc522011-05-24 05:31:19 +0000202#endif
wdenke887afc2002-08-27 09:44:07 +0000203
wdenke887afc2002-08-27 09:44:07 +0000204/******************************************************************************
205 * scsi boot command intepreter. Derived from diskboot
206 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200207int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenke887afc2002-08-27 09:44:07 +0000208{
Rob Herring7405a132012-09-21 04:02:30 +0000209 return common_diskboot(cmdtp, "scsi", argc, argv);
wdenke887afc2002-08-27 09:44:07 +0000210}
211
212/*********************************************************************************
213 * scsi command intepreter
214 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200215int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenke887afc2002-08-27 09:44:07 +0000216{
217 switch (argc) {
Simon Glass4c12eeb2011-12-10 08:44:01 +0000218 case 0:
219 case 1:
220 return CMD_RET_USAGE;
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200221
Simon Glass4c12eeb2011-12-10 08:44:01 +0000222 case 2:
wdenke887afc2002-08-27 09:44:07 +0000223 if (strncmp(argv[1],"res",3) == 0) {
224 printf("\nReset SCSI\n");
225 scsi_bus_reset();
226 scsi_scan(1);
227 return 0;
228 }
229 if (strncmp(argv[1],"inf",3) == 0) {
230 int i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200231 for (i=0; i<CONFIG_SYS_SCSI_MAX_DEVICE; ++i) {
wdenke887afc2002-08-27 09:44:07 +0000232 if(scsi_dev_desc[i].type==DEV_TYPE_UNKNOWN)
233 continue; /* list only known devices */
234 printf ("SCSI dev. %d: ", i);
235 dev_print(&scsi_dev_desc[i]);
236 }
237 return 0;
238 }
239 if (strncmp(argv[1],"dev",3) == 0) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200240 if ((scsi_curr_dev < 0) || (scsi_curr_dev >= CONFIG_SYS_SCSI_MAX_DEVICE)) {
wdenke887afc2002-08-27 09:44:07 +0000241 printf("\nno SCSI devices available\n");
242 return 1;
243 }
244 printf ("\n Device %d: ", scsi_curr_dev);
245 dev_print(&scsi_dev_desc[scsi_curr_dev]);
246 return 0;
247 }
248 if (strncmp(argv[1],"scan",4) == 0) {
249 scsi_scan(1);
250 return 0;
251 }
252 if (strncmp(argv[1],"part",4) == 0) {
253 int dev, ok;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200254 for (ok=0, dev=0; dev<CONFIG_SYS_SCSI_MAX_DEVICE; ++dev) {
wdenke887afc2002-08-27 09:44:07 +0000255 if (scsi_dev_desc[dev].type!=DEV_TYPE_UNKNOWN) {
256 ok++;
257 if (dev)
258 printf("\n");
wdenk1a344f22005-02-03 23:00:49 +0000259 debug ("print_part of %x\n",dev);
wdenke887afc2002-08-27 09:44:07 +0000260 print_part(&scsi_dev_desc[dev]);
261 }
262 }
263 if (!ok)
264 printf("\nno SCSI devices available\n");
265 return 1;
266 }
Simon Glass4c12eeb2011-12-10 08:44:01 +0000267 return CMD_RET_USAGE;
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200268 case 3:
wdenke887afc2002-08-27 09:44:07 +0000269 if (strncmp(argv[1],"dev",3) == 0) {
270 int dev = (int)simple_strtoul(argv[2], NULL, 10);
271 printf ("\nSCSI device %d: ", dev);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200272 if (dev >= CONFIG_SYS_SCSI_MAX_DEVICE) {
wdenke887afc2002-08-27 09:44:07 +0000273 printf("unknown device\n");
274 return 1;
275 }
276 printf ("\n Device %d: ", dev);
277 dev_print(&scsi_dev_desc[dev]);
278 if(scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
279 return 1;
280 }
281 scsi_curr_dev = dev;
282 printf("... is now current device\n");
283 return 0;
284 }
285 if (strncmp(argv[1],"part",4) == 0) {
286 int dev = (int)simple_strtoul(argv[2], NULL, 10);
287 if(scsi_dev_desc[dev].type != DEV_TYPE_UNKNOWN) {
288 print_part(&scsi_dev_desc[dev]);
289 }
290 else {
291 printf ("\nSCSI device %d not available\n", dev);
292 }
293 return 1;
294 }
Simon Glass4c12eeb2011-12-10 08:44:01 +0000295 return CMD_RET_USAGE;
wdenke887afc2002-08-27 09:44:07 +0000296 default:
297 /* at least 4 args */
298 if (strcmp(argv[1],"read") == 0) {
299 ulong addr = simple_strtoul(argv[2], NULL, 16);
300 ulong blk = simple_strtoul(argv[3], NULL, 16);
301 ulong cnt = simple_strtoul(argv[4], NULL, 16);
302 ulong n;
303 printf ("\nSCSI read: device %d block # %ld, count %ld ... ",
304 scsi_curr_dev, blk, cnt);
305 n = scsi_read(scsi_curr_dev, blk, cnt, (ulong *)addr);
306 printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR");
307 return 0;
308 }
309 } /* switch */
Simon Glass4c12eeb2011-12-10 08:44:01 +0000310 return CMD_RET_USAGE;
wdenke887afc2002-08-27 09:44:07 +0000311}
312
313/****************************************************************************************
314 * scsi_read
315 */
316
317#define SCSI_MAX_READ_BLK 0xFFFF /* almost the maximum amount of the scsi_ext command.. */
318
Grant Likelyeb867a72007-02-20 09:05:45 +0100319ulong scsi_read(int device, ulong blknr, ulong blkcnt, void *buffer)
wdenke887afc2002-08-27 09:44:07 +0000320{
321 ulong start,blks, buf_addr;
322 unsigned short smallblks;
323 ccb* pccb=(ccb *)&tempccb;
324 device&=0xff;
325 /* Setup device
326 */
327 pccb->target=scsi_dev_desc[device].target;
328 pccb->lun=scsi_dev_desc[device].lun;
329 buf_addr=(unsigned long)buffer;
330 start=blknr;
331 blks=blkcnt;
wdenk1a344f22005-02-03 23:00:49 +0000332 debug ("\nscsi_read: dev %d startblk %lx, blccnt %lx buffer %lx\n",device,start,blks,(unsigned long)buffer);
wdenke887afc2002-08-27 09:44:07 +0000333 do {
334 pccb->pdata=(unsigned char *)buf_addr;
335 if(blks>SCSI_MAX_READ_BLK) {
336 pccb->datalen=scsi_dev_desc[device].blksz * SCSI_MAX_READ_BLK;
337 smallblks=SCSI_MAX_READ_BLK;
338 scsi_setup_read_ext(pccb,start,smallblks);
339 start+=SCSI_MAX_READ_BLK;
340 blks-=SCSI_MAX_READ_BLK;
341 }
342 else {
343 pccb->datalen=scsi_dev_desc[device].blksz * blks;
344 smallblks=(unsigned short) blks;
345 scsi_setup_read_ext(pccb,start,smallblks);
346 start+=blks;
347 blks=0;
348 }
wdenk1a344f22005-02-03 23:00:49 +0000349 debug ("scsi_read_ext: startblk %lx, blccnt %x buffer %lx\n",start,smallblks,buf_addr);
wdenke887afc2002-08-27 09:44:07 +0000350 if(scsi_exec(pccb)!=TRUE) {
351 scsi_print_error(pccb);
352 blkcnt-=blks;
353 break;
354 }
355 buf_addr+=pccb->datalen;
356 } while(blks!=0);
wdenk1a344f22005-02-03 23:00:49 +0000357 debug ("scsi_read_ext: end startblk %lx, blccnt %x buffer %lx\n",start,smallblks,buf_addr);
wdenke887afc2002-08-27 09:44:07 +0000358 return(blkcnt);
359}
360
361/* copy src to dest, skipping leading and trailing blanks
362 * and null terminate the string
363 */
364void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len)
365{
366 int start,end;
367
368 start=0;
369 while(start<len) {
370 if(src[start]!=' ')
371 break;
372 start++;
373 }
374 end=len-1;
375 while(end>start) {
376 if(src[end]!=' ')
377 break;
378 end--;
379 }
380 for( ; start<=end; start++) {
381 *dest++=src[start];
382 }
383 *dest='\0';
384}
385
386
wdenke887afc2002-08-27 09:44:07 +0000387/* Trim trailing blanks, and NUL-terminate string
388 */
389void scsi_trim_trail (unsigned char *str, unsigned int len)
390{
391 unsigned char *p = str + len - 1;
392
393 while (len-- > 0) {
394 *p-- = '\0';
395 if (*p != ' ') {
396 return;
397 }
398 }
399}
400
401
402/************************************************************************************
403 * Some setup (fill-in) routines
404 */
405void scsi_setup_test_unit_ready(ccb * pccb)
406{
407 pccb->cmd[0]=SCSI_TST_U_RDY;
408 pccb->cmd[1]=pccb->lun<<5;
409 pccb->cmd[2]=0;
410 pccb->cmd[3]=0;
411 pccb->cmd[4]=0;
412 pccb->cmd[5]=0;
413 pccb->cmdlen=6;
414 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
415}
416
417void scsi_setup_read_capacity(ccb * pccb)
418{
419 pccb->cmd[0]=SCSI_RD_CAPAC;
420 pccb->cmd[1]=pccb->lun<<5;
421 pccb->cmd[2]=0;
422 pccb->cmd[3]=0;
423 pccb->cmd[4]=0;
424 pccb->cmd[5]=0;
425 pccb->cmd[6]=0;
426 pccb->cmd[7]=0;
427 pccb->cmd[8]=0;
428 pccb->cmd[9]=0;
429 pccb->cmdlen=10;
430 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
431
432}
433
434void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks)
435{
436 pccb->cmd[0]=SCSI_READ10;
437 pccb->cmd[1]=pccb->lun<<5;
438 pccb->cmd[2]=((unsigned char) (start>>24))&0xff;
439 pccb->cmd[3]=((unsigned char) (start>>16))&0xff;
440 pccb->cmd[4]=((unsigned char) (start>>8))&0xff;
441 pccb->cmd[5]=((unsigned char) (start))&0xff;
442 pccb->cmd[6]=0;
443 pccb->cmd[7]=((unsigned char) (blocks>>8))&0xff;
444 pccb->cmd[8]=(unsigned char) blocks & 0xff;
445 pccb->cmd[6]=0;
446 pccb->cmdlen=10;
447 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
wdenk1a344f22005-02-03 23:00:49 +0000448 debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
wdenke887afc2002-08-27 09:44:07 +0000449 pccb->cmd[0],pccb->cmd[1],
450 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4],pccb->cmd[5],
451 pccb->cmd[7],pccb->cmd[8]);
452}
453
454void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks)
455{
456 pccb->cmd[0]=SCSI_READ6;
457 pccb->cmd[1]=pccb->lun<<5 | (((unsigned char)(start>>16))&0x1f);
458 pccb->cmd[2]=((unsigned char) (start>>8))&0xff;
459 pccb->cmd[3]=((unsigned char) (start))&0xff;
460 pccb->cmd[4]=(unsigned char) blocks & 0xff;
461 pccb->cmd[5]=0;
462 pccb->cmdlen=6;
463 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
wdenk1a344f22005-02-03 23:00:49 +0000464 debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n",
wdenke887afc2002-08-27 09:44:07 +0000465 pccb->cmd[0],pccb->cmd[1],
466 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4]);
467}
468
469
470void scsi_setup_inquiry(ccb * pccb)
471{
472 pccb->cmd[0]=SCSI_INQUIRY;
473 pccb->cmd[1]=pccb->lun<<5;
474 pccb->cmd[2]=0;
475 pccb->cmd[3]=0;
476 if(pccb->datalen>255)
477 pccb->cmd[4]=255;
478 else
479 pccb->cmd[4]=(unsigned char)pccb->datalen;
480 pccb->cmd[5]=0;
481 pccb->cmdlen=6;
482 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
483}
484
Wolfgang Denk460c3222005-08-04 01:14:12 +0200485
486U_BOOT_CMD(
487 scsi, 5, 1, do_scsi,
Peter Tyser2fb26042009-01-27 18:03:12 -0600488 "SCSI sub-system",
Wolfgang Denk460c3222005-08-04 01:14:12 +0200489 "reset - reset SCSI controller\n"
490 "scsi info - show available SCSI devices\n"
491 "scsi scan - (re-)scan SCSI bus\n"
492 "scsi device [dev] - show or set current device\n"
493 "scsi part [dev] - print partition table of one or all SCSI devices\n"
494 "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200495 " to memory address `addr'"
Wolfgang Denk460c3222005-08-04 01:14:12 +0200496);
497
498U_BOOT_CMD(
499 scsiboot, 3, 1, do_scsiboot,
Peter Tyser2fb26042009-01-27 18:03:12 -0600500 "boot from SCSI device",
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200501 "loadAddr dev:part"
Wolfgang Denk460c3222005-08-04 01:14:12 +0200502);