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e887afc9 WD |
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 | */ | |
e887afc9 WD |
30 | #include <common.h> |
31 | #include <command.h> | |
e887afc9 WD |
32 | #include <asm/processor.h> |
33 | #include <scsi.h> | |
34 | #include <image.h> | |
e887afc9 WD |
35 | #include <pci.h> |
36 | ||
e887afc9 WD |
37 | #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 | |
4782ac80 JZ |
44 | #elif defined CONFIG_SATA_ULI5288 |
45 | ||
46 | #define SCSI_VEND_ID 0x10b9 | |
47 | #define SCSI_DEV_ID 0x5288 | |
48 | ||
942e3143 | 49 | #elif !defined(CONFIG_SCSI_AHCI_PLAT) |
4782ac80 | 50 | #error no scsi device defined |
e887afc9 WD |
51 | #endif |
52 | ||
53 | ||
54 | static ccb tempccb; /* temporary scsi command buffer */ | |
55 | ||
56 | static unsigned char tempbuff[512]; /* temporary data buffer */ | |
57 | ||
58 | static int scsi_max_devs; /* number of highest available scsi device */ | |
59 | ||
60 | static int scsi_curr_dev; /* current device */ | |
61 | ||
6d0f6bcf | 62 | static block_dev_desc_t scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE]; |
e887afc9 WD |
63 | |
64 | /******************************************************************************** | |
65 | * forward declerations of some Setup Routines | |
66 | */ | |
67 | void scsi_setup_test_unit_ready(ccb * pccb); | |
68 | void scsi_setup_read_capacity(ccb * pccb); | |
69 | void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks); | |
70 | void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks); | |
71 | void scsi_setup_inquiry(ccb * pccb); | |
72 | void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len); | |
73 | ||
74 | ||
eb867a76 | 75 | ulong scsi_read(int device, ulong blknr, ulong blkcnt, void *buffer); |
e887afc9 WD |
76 | |
77 | ||
78 | /********************************************************************************* | |
79 | * (re)-scan the scsi bus and reports scsi device info | |
80 | * to the user if mode = 1 | |
81 | */ | |
82 | void 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 | } | |
6d0f6bcf | 91 | for(i=0;i<CONFIG_SYS_SCSI_MAX_DEVICE;i++) { |
e887afc9 WD |
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; | |
6d0f6bcf | 107 | for(i=0;i<CONFIG_SYS_SCSI_MAX_SCSI_ID;i++) { |
e887afc9 | 108 | pccb->target=i; |
6d0f6bcf | 109 | for(lun=0;lun<CONFIG_SYS_SCSI_MAX_LUN;lun++) { |
e887afc9 WD |
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) { | |
1a344f29 | 116 | debug ("Selection timeout ID %d\n",pccb->target); |
e887afc9 WD |
117 | 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 */ | |
2309c130 SR |
130 | 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); | |
e887afc9 WD |
136 | 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]); | |
163 | removable: | |
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 | |
d0ff51ba | 174 | scsi_curr_dev = -1; |
e887afc9 WD |
175 | } |
176 | ||
942e3143 | 177 | #ifdef CONFIG_PCI |
e887afc9 WD |
178 | void 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 | } | |
942e3143 | 195 | #endif |
e887afc9 | 196 | |
df3fc526 | 197 | #ifdef CONFIG_PARTITIONS |
e887afc9 WD |
198 | block_dev_desc_t * scsi_get_dev(int dev) |
199 | { | |
6d0f6bcf | 200 | return (dev < CONFIG_SYS_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL; |
e887afc9 | 201 | } |
df3fc526 | 202 | #endif |
e887afc9 | 203 | |
e887afc9 WD |
204 | /****************************************************************************** |
205 | * scsi boot command intepreter. Derived from diskboot | |
206 | */ | |
54841ab5 | 207 | int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
e887afc9 | 208 | { |
7405a133 | 209 | return common_diskboot(cmdtp, "scsi", argc, argv); |
e887afc9 WD |
210 | } |
211 | ||
212 | /********************************************************************************* | |
213 | * scsi command intepreter | |
214 | */ | |
54841ab5 | 215 | int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
e887afc9 WD |
216 | { |
217 | switch (argc) { | |
4c12eeb8 SG |
218 | case 0: |
219 | case 1: | |
220 | return CMD_RET_USAGE; | |
47e26b1b | 221 | |
4c12eeb8 | 222 | case 2: |
e887afc9 WD |
223 | 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; | |
6d0f6bcf | 231 | for (i=0; i<CONFIG_SYS_SCSI_MAX_DEVICE; ++i) { |
e887afc9 WD |
232 | 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) { | |
6d0f6bcf | 240 | if ((scsi_curr_dev < 0) || (scsi_curr_dev >= CONFIG_SYS_SCSI_MAX_DEVICE)) { |
e887afc9 WD |
241 | 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; | |
6d0f6bcf | 254 | for (ok=0, dev=0; dev<CONFIG_SYS_SCSI_MAX_DEVICE; ++dev) { |
e887afc9 WD |
255 | if (scsi_dev_desc[dev].type!=DEV_TYPE_UNKNOWN) { |
256 | ok++; | |
257 | if (dev) | |
258 | printf("\n"); | |
1a344f29 | 259 | debug ("print_part of %x\n",dev); |
e887afc9 WD |
260 | print_part(&scsi_dev_desc[dev]); |
261 | } | |
262 | } | |
263 | if (!ok) | |
264 | printf("\nno SCSI devices available\n"); | |
265 | return 1; | |
266 | } | |
4c12eeb8 | 267 | return CMD_RET_USAGE; |
53677ef1 | 268 | case 3: |
e887afc9 WD |
269 | if (strncmp(argv[1],"dev",3) == 0) { |
270 | int dev = (int)simple_strtoul(argv[2], NULL, 10); | |
271 | printf ("\nSCSI device %d: ", dev); | |
6d0f6bcf | 272 | if (dev >= CONFIG_SYS_SCSI_MAX_DEVICE) { |
e887afc9 WD |
273 | 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 | } | |
4c12eeb8 | 295 | return CMD_RET_USAGE; |
e887afc9 WD |
296 | 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 */ | |
4c12eeb8 | 310 | return CMD_RET_USAGE; |
e887afc9 WD |
311 | } |
312 | ||
313 | /**************************************************************************************** | |
314 | * scsi_read | |
315 | */ | |
316 | ||
317 | #define SCSI_MAX_READ_BLK 0xFFFF /* almost the maximum amount of the scsi_ext command.. */ | |
318 | ||
eb867a76 | 319 | ulong scsi_read(int device, ulong blknr, ulong blkcnt, void *buffer) |
e887afc9 WD |
320 | { |
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; | |
1a344f29 | 332 | debug ("\nscsi_read: dev %d startblk %lx, blccnt %lx buffer %lx\n",device,start,blks,(unsigned long)buffer); |
e887afc9 WD |
333 | 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 | } | |
1a344f29 | 349 | debug ("scsi_read_ext: startblk %lx, blccnt %x buffer %lx\n",start,smallblks,buf_addr); |
e887afc9 WD |
350 | 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); | |
1a344f29 | 357 | debug ("scsi_read_ext: end startblk %lx, blccnt %x buffer %lx\n",start,smallblks,buf_addr); |
e887afc9 WD |
358 | return(blkcnt); |
359 | } | |
360 | ||
361 | /* copy src to dest, skipping leading and trailing blanks | |
362 | * and null terminate the string | |
363 | */ | |
364 | void 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 | ||
e887afc9 WD |
387 | /* Trim trailing blanks, and NUL-terminate string |
388 | */ | |
389 | void 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 | */ | |
405 | void 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 | ||
417 | void 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 | ||
434 | void 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 */ | |
1a344f29 | 448 | debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n", |
e887afc9 WD |
449 | 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 | ||
454 | void 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 */ | |
1a344f29 | 464 | debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n", |
e887afc9 WD |
465 | pccb->cmd[0],pccb->cmd[1], |
466 | pccb->cmd[2],pccb->cmd[3],pccb->cmd[4]); | |
467 | } | |
468 | ||
469 | ||
470 | void 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 | ||
460c322f WD |
485 | |
486 | U_BOOT_CMD( | |
487 | scsi, 5, 1, do_scsi, | |
2fb2604d | 488 | "SCSI sub-system", |
460c322f WD |
489 | "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" | |
a89c33db | 495 | " to memory address `addr'" |
460c322f WD |
496 | ); |
497 | ||
498 | U_BOOT_CMD( | |
499 | scsiboot, 3, 1, do_scsiboot, | |
2fb2604d | 500 | "boot from SCSI device", |
a89c33db | 501 | "loadAddr dev:part" |
460c322f | 502 | ); |