3 * Denis Peter, MPL AG Switzerland
5 * SPDX-License-Identifier: GPL-2.0+
14 #include <asm/processor.h>
19 #ifdef CONFIG_SCSI_DEV_LIST
20 #define SCSI_DEV_LIST CONFIG_SCSI_DEV_LIST
22 #ifdef CONFIG_SCSI_SYM53C8XX
23 #define SCSI_VEND_ID 0x1000
24 #ifndef CONFIG_SCSI_DEV_ID
25 #define SCSI_DEV_ID 0x0001
27 #define SCSI_DEV_ID CONFIG_SCSI_DEV_ID
29 #elif defined CONFIG_SATA_ULI5288
31 #define SCSI_VEND_ID 0x10b9
32 #define SCSI_DEV_ID 0x5288
34 #elif !defined(CONFIG_SCSI_AHCI_PLAT)
35 #error no scsi device defined
37 #define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID}
40 #if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT)
41 const struct pci_device_id scsi_device_list
[] = { SCSI_DEV_LIST
};
43 static ccb tempccb
; /* temporary scsi command buffer */
45 static unsigned char tempbuff
[512]; /* temporary data buffer */
47 static int scsi_max_devs
; /* number of highest available scsi device */
49 static int scsi_curr_dev
; /* current device */
51 static struct blk_desc scsi_dev_desc
[CONFIG_SYS_SCSI_MAX_DEVICE
];
53 /********************************************************************************
54 * forward declerations of some Setup Routines
56 void scsi_setup_test_unit_ready(ccb
* pccb
);
57 void scsi_setup_read6(ccb
* pccb
, lbaint_t start
, unsigned short blocks
);
58 void scsi_setup_read_ext(ccb
* pccb
, lbaint_t start
, unsigned short blocks
);
59 void scsi_setup_read16(ccb
* pccb
, lbaint_t start
, unsigned long blocks
);
61 static void scsi_setup_write_ext(ccb
*pccb
, lbaint_t start
,
62 unsigned short blocks
);
63 void scsi_setup_inquiry(ccb
* pccb
);
64 void scsi_ident_cpy (unsigned char *dest
, unsigned char *src
, unsigned int len
);
67 static int scsi_read_capacity(ccb
*pccb
, lbaint_t
*capacity
,
68 unsigned long *blksz
);
69 static ulong
scsi_read(struct blk_desc
*block_dev
, lbaint_t blknr
,
70 lbaint_t blkcnt
, void *buffer
);
71 static ulong
scsi_write(struct blk_desc
*block_dev
, lbaint_t blknr
,
72 lbaint_t blkcnt
, const void *buffer
);
75 /*********************************************************************************
76 * (re)-scan the scsi bus and reports scsi device info
77 * to the user if mode = 1
79 void scsi_scan(int mode
)
81 unsigned char i
,perq
,modi
,lun
;
84 ccb
* pccb
=(ccb
*)&tempccb
;
87 printf("scanning bus for devices...\n");
89 for(i
=0;i
<CONFIG_SYS_SCSI_MAX_DEVICE
;i
++) {
90 scsi_dev_desc
[i
].target
=0xff;
91 scsi_dev_desc
[i
].lun
=0xff;
92 scsi_dev_desc
[i
].lba
=0;
93 scsi_dev_desc
[i
].blksz
=0;
94 scsi_dev_desc
[i
].log2blksz
=
95 LOG2_INVALID(typeof(scsi_dev_desc
[i
].log2blksz
));
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 scsi_dev_desc
[i
].block_write
= scsi_write
;
108 for(i
=0;i
<CONFIG_SYS_SCSI_MAX_SCSI_ID
;i
++) {
110 for(lun
=0;lun
<CONFIG_SYS_SCSI_MAX_LUN
;lun
++) {
112 pccb
->pdata
=(unsigned char *)&tempbuff
;
114 scsi_setup_inquiry(pccb
);
115 if (scsi_exec(pccb
) != true) {
116 if(pccb
->contr_stat
==SCSI_SEL_TIME_OUT
) {
117 debug ("Selection timeout ID %d\n",pccb
->target
);
118 continue; /* selection timeout => assuming no device present */
120 scsi_print_error(pccb
);
125 if((perq
& 0x1f)==0x1f) {
126 continue; /* skip unknown devices */
128 if((modi
&0x80)==0x80) /* drive is removable */
129 scsi_dev_desc
[scsi_max_devs
].removable
=true;
130 /* get info for this device */
131 scsi_ident_cpy((unsigned char *)&scsi_dev_desc
[scsi_max_devs
].vendor
[0],
133 scsi_ident_cpy((unsigned char *)&scsi_dev_desc
[scsi_max_devs
].product
[0],
135 scsi_ident_cpy((unsigned char *)&scsi_dev_desc
[scsi_max_devs
].revision
[0],
137 scsi_dev_desc
[scsi_max_devs
].target
=pccb
->target
;
138 scsi_dev_desc
[scsi_max_devs
].lun
=pccb
->lun
;
141 scsi_setup_test_unit_ready(pccb
);
142 if (scsi_exec(pccb
) != true) {
143 if (scsi_dev_desc
[scsi_max_devs
].removable
== true) {
144 scsi_dev_desc
[scsi_max_devs
].type
=perq
;
147 scsi_print_error(pccb
);
150 if (scsi_read_capacity(pccb
, &capacity
, &blksz
)) {
151 scsi_print_error(pccb
);
154 scsi_dev_desc
[scsi_max_devs
].lba
=capacity
;
155 scsi_dev_desc
[scsi_max_devs
].blksz
=blksz
;
156 scsi_dev_desc
[scsi_max_devs
].log2blksz
=
157 LOG2(scsi_dev_desc
[scsi_max_devs
].blksz
);
158 scsi_dev_desc
[scsi_max_devs
].type
=perq
;
159 init_part(&scsi_dev_desc
[scsi_max_devs
]);
162 printf (" Device %d: ", scsi_max_devs
);
163 dev_print(&scsi_dev_desc
[scsi_max_devs
]);
173 printf("Found %d device(s).\n", scsi_max_devs
);
174 #ifndef CONFIG_SPL_BUILD
175 setenv_ulong("scsidevs", scsi_max_devs
);
179 int scsi_get_disk_count(void)
181 return scsi_max_devs
;
184 #if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT)
190 * Find a device from the list, this driver will support a single
193 for (i
= 0; i
< ARRAY_SIZE(scsi_device_list
); i
++) {
194 /* get PCI Device ID */
199 ret
= dm_pci_find_device(scsi_device_list
[i
].vendor
,
200 scsi_device_list
[i
].device
, 0, &dev
);
202 busdevfunc
= dm_pci_get_bdf(dev
);
206 busdevfunc
= pci_find_device(scsi_device_list
[i
].vendor
,
207 scsi_device_list
[i
].device
,
210 if (busdevfunc
!= -1)
214 if (busdevfunc
== -1) {
215 printf("Error: SCSI Controller(s) ");
216 for (i
= 0; i
< ARRAY_SIZE(scsi_device_list
); i
++) {
218 scsi_device_list
[i
].vendor
,
219 scsi_device_list
[i
].device
);
221 printf("not found\n");
226 printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",
227 scsi_device_list
[i
].vendor
,
228 scsi_device_list
[i
].device
,
229 (busdevfunc
>> 16) & 0xFF,
230 (busdevfunc
>> 11) & 0x1F,
231 (busdevfunc
>> 8) & 0x7);
234 bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI
, "ahci");
235 scsi_low_level_init(busdevfunc
);
237 bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI
);
241 #ifdef CONFIG_PARTITIONS
242 struct blk_desc
*scsi_get_dev(int dev
)
244 return (dev
< CONFIG_SYS_SCSI_MAX_DEVICE
) ? &scsi_dev_desc
[dev
] : NULL
;
248 /******************************************************************************
249 * scsi boot command intepreter. Derived from diskboot
251 int do_scsiboot (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
253 return common_diskboot(cmdtp
, "scsi", argc
, argv
);
256 /*********************************************************************************
257 * scsi command intepreter
259 int do_scsi (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
264 return CMD_RET_USAGE
;
267 if (strncmp(argv
[1],"res",3) == 0) {
268 printf("\nReset SCSI\n");
273 if (strncmp(argv
[1],"inf",3) == 0) {
275 for (i
=0; i
<CONFIG_SYS_SCSI_MAX_DEVICE
; ++i
) {
276 if(scsi_dev_desc
[i
].type
==DEV_TYPE_UNKNOWN
)
277 continue; /* list only known devices */
278 printf ("SCSI dev. %d: ", i
);
279 dev_print(&scsi_dev_desc
[i
]);
283 if (strncmp(argv
[1],"dev",3) == 0) {
284 if ((scsi_curr_dev
< 0) || (scsi_curr_dev
>= CONFIG_SYS_SCSI_MAX_DEVICE
)) {
285 printf("\nno SCSI devices available\n");
288 printf ("\n Device %d: ", scsi_curr_dev
);
289 dev_print(&scsi_dev_desc
[scsi_curr_dev
]);
292 if (strncmp(argv
[1],"scan",4) == 0) {
296 if (strncmp(argv
[1],"part",4) == 0) {
298 for (ok
=0, dev
=0; dev
<CONFIG_SYS_SCSI_MAX_DEVICE
; ++dev
) {
299 if (scsi_dev_desc
[dev
].type
!=DEV_TYPE_UNKNOWN
) {
303 debug ("print_part of %x\n",dev
);
304 print_part(&scsi_dev_desc
[dev
]);
308 printf("\nno SCSI devices available\n");
311 return CMD_RET_USAGE
;
313 if (strncmp(argv
[1],"dev",3) == 0) {
314 int dev
= (int)simple_strtoul(argv
[2], NULL
, 10);
315 printf ("\nSCSI device %d: ", dev
);
316 if (dev
>= CONFIG_SYS_SCSI_MAX_DEVICE
) {
317 printf("unknown device\n");
320 printf ("\n Device %d: ", dev
);
321 dev_print(&scsi_dev_desc
[dev
]);
322 if(scsi_dev_desc
[dev
].type
== DEV_TYPE_UNKNOWN
) {
326 printf("... is now current device\n");
329 if (strncmp(argv
[1],"part",4) == 0) {
330 int dev
= (int)simple_strtoul(argv
[2], NULL
, 10);
331 if(scsi_dev_desc
[dev
].type
!= DEV_TYPE_UNKNOWN
) {
332 print_part(&scsi_dev_desc
[dev
]);
335 printf ("\nSCSI device %d not available\n", dev
);
339 return CMD_RET_USAGE
;
341 /* at least 4 args */
342 if (strcmp(argv
[1],"read") == 0) {
343 ulong addr
= simple_strtoul(argv
[2], NULL
, 16);
344 ulong blk
= simple_strtoul(argv
[3], NULL
, 16);
345 ulong cnt
= simple_strtoul(argv
[4], NULL
, 16);
347 printf ("\nSCSI read: device %d block # %ld, count %ld ... ",
348 scsi_curr_dev
, blk
, cnt
);
349 n
= scsi_read(&scsi_dev_desc
[scsi_curr_dev
],
350 blk
, cnt
, (ulong
*)addr
);
351 printf ("%ld blocks read: %s\n",n
,(n
==cnt
) ? "OK" : "ERROR");
353 } else if (strcmp(argv
[1], "write") == 0) {
354 ulong addr
= simple_strtoul(argv
[2], NULL
, 16);
355 ulong blk
= simple_strtoul(argv
[3], NULL
, 16);
356 ulong cnt
= simple_strtoul(argv
[4], NULL
, 16);
358 printf("\nSCSI write: device %d block # %ld, "
360 scsi_curr_dev
, blk
, cnt
);
361 n
= scsi_write(&scsi_dev_desc
[scsi_curr_dev
],
362 blk
, cnt
, (ulong
*)addr
);
363 printf("%ld blocks written: %s\n", n
,
364 (n
== cnt
) ? "OK" : "ERROR");
368 return CMD_RET_USAGE
;
371 /****************************************************************************************
375 /* almost the maximum amount of the scsi_ext command.. */
376 #define SCSI_MAX_READ_BLK 0xFFFF
377 #define SCSI_LBA48_READ 0xFFFFFFF
379 static ulong
scsi_read(struct blk_desc
*block_dev
, lbaint_t blknr
,
380 lbaint_t blkcnt
, void *buffer
)
382 int device
= block_dev
->dev
;
383 lbaint_t start
, blks
;
385 unsigned short smallblks
= 0;
386 ccb
* pccb
=(ccb
*)&tempccb
;
390 pccb
->target
=scsi_dev_desc
[device
].target
;
391 pccb
->lun
=scsi_dev_desc
[device
].lun
;
392 buf_addr
=(unsigned long)buffer
;
395 debug("\nscsi_read: dev %d startblk " LBAF
396 ", blccnt " LBAF
" buffer %lx\n",
397 device
, start
, blks
, (unsigned long)buffer
);
399 pccb
->pdata
=(unsigned char *)buf_addr
;
400 #ifdef CONFIG_SYS_64BIT_LBA
401 if (start
> SCSI_LBA48_READ
) {
402 unsigned long blocks
;
403 blocks
= min_t(lbaint_t
, blks
, SCSI_MAX_READ_BLK
);
404 pccb
->datalen
= scsi_dev_desc
[device
].blksz
* blocks
;
405 scsi_setup_read16(pccb
, start
, blocks
);
410 if (blks
> SCSI_MAX_READ_BLK
) {
411 pccb
->datalen
=scsi_dev_desc
[device
].blksz
* SCSI_MAX_READ_BLK
;
412 smallblks
=SCSI_MAX_READ_BLK
;
413 scsi_setup_read_ext(pccb
,start
,smallblks
);
414 start
+=SCSI_MAX_READ_BLK
;
415 blks
-=SCSI_MAX_READ_BLK
;
418 pccb
->datalen
=scsi_dev_desc
[device
].blksz
* blks
;
419 smallblks
=(unsigned short) blks
;
420 scsi_setup_read_ext(pccb
,start
,smallblks
);
424 debug("scsi_read_ext: startblk " LBAF
425 ", blccnt %x buffer %" PRIXPTR
"\n",
426 start
, smallblks
, buf_addr
);
427 if (scsi_exec(pccb
) != true) {
428 scsi_print_error(pccb
);
432 buf_addr
+=pccb
->datalen
;
434 debug("scsi_read_ext: end startblk " LBAF
435 ", blccnt %x buffer %" PRIXPTR
"\n", start
, smallblks
, buf_addr
);
439 /*******************************************************************************
443 /* Almost the maximum amount of the scsi_ext command.. */
444 #define SCSI_MAX_WRITE_BLK 0xFFFF
446 static ulong
scsi_write(struct blk_desc
*block_dev
, lbaint_t blknr
,
447 lbaint_t blkcnt
, const void *buffer
)
449 int device
= block_dev
->dev
;
450 lbaint_t start
, blks
;
452 unsigned short smallblks
;
453 ccb
* pccb
= (ccb
*)&tempccb
;
457 pccb
->target
= scsi_dev_desc
[device
].target
;
458 pccb
->lun
= scsi_dev_desc
[device
].lun
;
459 buf_addr
= (unsigned long)buffer
;
462 debug("\n%s: dev %d startblk " LBAF
", blccnt " LBAF
" buffer %lx\n",
463 __func__
, device
, start
, blks
, (unsigned long)buffer
);
465 pccb
->pdata
= (unsigned char *)buf_addr
;
466 if (blks
> SCSI_MAX_WRITE_BLK
) {
467 pccb
->datalen
= (scsi_dev_desc
[device
].blksz
*
469 smallblks
= SCSI_MAX_WRITE_BLK
;
470 scsi_setup_write_ext(pccb
, start
, smallblks
);
471 start
+= SCSI_MAX_WRITE_BLK
;
472 blks
-= SCSI_MAX_WRITE_BLK
;
474 pccb
->datalen
= scsi_dev_desc
[device
].blksz
* blks
;
475 smallblks
= (unsigned short)blks
;
476 scsi_setup_write_ext(pccb
, start
, smallblks
);
480 debug("%s: startblk " LBAF
", blccnt %x buffer %" PRIXPTR
"\n",
481 __func__
, start
, smallblks
, buf_addr
);
482 if (scsi_exec(pccb
) != true) {
483 scsi_print_error(pccb
);
487 buf_addr
+= pccb
->datalen
;
489 debug("%s: end startblk " LBAF
", blccnt %x buffer %" PRIXPTR
"\n",
490 __func__
, start
, smallblks
, buf_addr
);
494 /* copy src to dest, skipping leading and trailing blanks
495 * and null terminate the string
497 void scsi_ident_cpy (unsigned char *dest
, unsigned char *src
, unsigned int len
)
513 for( ; start
<=end
; start
++) {
520 /* Trim trailing blanks, and NUL-terminate string
522 void scsi_trim_trail (unsigned char *str
, unsigned int len
)
524 unsigned char *p
= str
+ len
- 1;
534 int scsi_read_capacity(ccb
*pccb
, lbaint_t
*capacity
, unsigned long *blksz
)
538 memset(pccb
->cmd
, 0, sizeof(pccb
->cmd
));
539 pccb
->cmd
[0] = SCSI_RD_CAPAC10
;
540 pccb
->cmd
[1] = pccb
->lun
<< 5;
542 pccb
->msgout
[0] = SCSI_IDENTIFY
; /* NOT USED */
545 if (scsi_exec(pccb
) != true)
548 *capacity
= ((lbaint_t
)pccb
->pdata
[0] << 24) |
549 ((lbaint_t
)pccb
->pdata
[1] << 16) |
550 ((lbaint_t
)pccb
->pdata
[2] << 8) |
551 ((lbaint_t
)pccb
->pdata
[3]);
553 if (*capacity
!= 0xffffffff) {
554 /* Read capacity (10) was sufficient for this drive. */
555 *blksz
= ((unsigned long)pccb
->pdata
[4] << 24) |
556 ((unsigned long)pccb
->pdata
[5] << 16) |
557 ((unsigned long)pccb
->pdata
[6] << 8) |
558 ((unsigned long)pccb
->pdata
[7]);
562 /* Read capacity (10) was insufficient. Use read capacity (16). */
564 memset(pccb
->cmd
, 0, sizeof(pccb
->cmd
));
565 pccb
->cmd
[0] = SCSI_RD_CAPAC16
;
568 pccb
->msgout
[0] = SCSI_IDENTIFY
; /* NOT USED */
571 if (scsi_exec(pccb
) != true)
574 *capacity
= ((uint64_t)pccb
->pdata
[0] << 56) |
575 ((uint64_t)pccb
->pdata
[1] << 48) |
576 ((uint64_t)pccb
->pdata
[2] << 40) |
577 ((uint64_t)pccb
->pdata
[3] << 32) |
578 ((uint64_t)pccb
->pdata
[4] << 24) |
579 ((uint64_t)pccb
->pdata
[5] << 16) |
580 ((uint64_t)pccb
->pdata
[6] << 8) |
581 ((uint64_t)pccb
->pdata
[7]);
583 *blksz
= ((uint64_t)pccb
->pdata
[8] << 56) |
584 ((uint64_t)pccb
->pdata
[9] << 48) |
585 ((uint64_t)pccb
->pdata
[10] << 40) |
586 ((uint64_t)pccb
->pdata
[11] << 32) |
587 ((uint64_t)pccb
->pdata
[12] << 24) |
588 ((uint64_t)pccb
->pdata
[13] << 16) |
589 ((uint64_t)pccb
->pdata
[14] << 8) |
590 ((uint64_t)pccb
->pdata
[15]);
596 /************************************************************************************
597 * Some setup (fill-in) routines
599 void scsi_setup_test_unit_ready(ccb
* pccb
)
601 pccb
->cmd
[0]=SCSI_TST_U_RDY
;
602 pccb
->cmd
[1]=pccb
->lun
<<5;
608 pccb
->msgout
[0]=SCSI_IDENTIFY
; /* NOT USED */
611 #ifdef CONFIG_SYS_64BIT_LBA
612 void scsi_setup_read16(ccb
* pccb
, lbaint_t start
, unsigned long blocks
)
614 pccb
->cmd
[0] = SCSI_READ16
;
615 pccb
->cmd
[1] = pccb
->lun
<<5;
616 pccb
->cmd
[2] = ((unsigned char) (start
>> 56)) & 0xff;
617 pccb
->cmd
[3] = ((unsigned char) (start
>> 48)) & 0xff;
618 pccb
->cmd
[4] = ((unsigned char) (start
>> 40)) & 0xff;
619 pccb
->cmd
[5] = ((unsigned char) (start
>> 32)) & 0xff;
620 pccb
->cmd
[6] = ((unsigned char) (start
>> 24)) & 0xff;
621 pccb
->cmd
[7] = ((unsigned char) (start
>> 16)) & 0xff;
622 pccb
->cmd
[8] = ((unsigned char) (start
>> 8)) & 0xff;
623 pccb
->cmd
[9] = ((unsigned char) (start
)) & 0xff;
625 pccb
->cmd
[11] = ((unsigned char) (blocks
>> 24)) & 0xff;
626 pccb
->cmd
[12] = ((unsigned char) (blocks
>> 16)) & 0xff;
627 pccb
->cmd
[13] = ((unsigned char) (blocks
>> 8)) & 0xff;
628 pccb
->cmd
[14] = (unsigned char) blocks
& 0xff;
631 pccb
->msgout
[0] = SCSI_IDENTIFY
; /* NOT USED */
632 debug ("scsi_setup_read16: cmd: %02X %02X "
633 "startblk %02X%02X%02X%02X%02X%02X%02X%02X "
634 "blccnt %02X%02X%02X%02X\n",
635 pccb
->cmd
[0], pccb
->cmd
[1],
636 pccb
->cmd
[2], pccb
->cmd
[3], pccb
->cmd
[4], pccb
->cmd
[5],
637 pccb
->cmd
[6], pccb
->cmd
[7], pccb
->cmd
[8], pccb
->cmd
[9],
638 pccb
->cmd
[11], pccb
->cmd
[12], pccb
->cmd
[13], pccb
->cmd
[14]);
642 void scsi_setup_read_ext(ccb
* pccb
, lbaint_t start
, unsigned short blocks
)
644 pccb
->cmd
[0]=SCSI_READ10
;
645 pccb
->cmd
[1]=pccb
->lun
<<5;
646 pccb
->cmd
[2]=((unsigned char) (start
>>24))&0xff;
647 pccb
->cmd
[3]=((unsigned char) (start
>>16))&0xff;
648 pccb
->cmd
[4]=((unsigned char) (start
>>8))&0xff;
649 pccb
->cmd
[5]=((unsigned char) (start
))&0xff;
651 pccb
->cmd
[7]=((unsigned char) (blocks
>>8))&0xff;
652 pccb
->cmd
[8]=(unsigned char) blocks
& 0xff;
655 pccb
->msgout
[0]=SCSI_IDENTIFY
; /* NOT USED */
656 debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
657 pccb
->cmd
[0],pccb
->cmd
[1],
658 pccb
->cmd
[2],pccb
->cmd
[3],pccb
->cmd
[4],pccb
->cmd
[5],
659 pccb
->cmd
[7],pccb
->cmd
[8]);
662 void scsi_setup_write_ext(ccb
*pccb
, lbaint_t start
, unsigned short blocks
)
664 pccb
->cmd
[0] = SCSI_WRITE10
;
665 pccb
->cmd
[1] = pccb
->lun
<< 5;
666 pccb
->cmd
[2] = ((unsigned char) (start
>>24)) & 0xff;
667 pccb
->cmd
[3] = ((unsigned char) (start
>>16)) & 0xff;
668 pccb
->cmd
[4] = ((unsigned char) (start
>>8)) & 0xff;
669 pccb
->cmd
[5] = ((unsigned char) (start
)) & 0xff;
671 pccb
->cmd
[7] = ((unsigned char) (blocks
>>8)) & 0xff;
672 pccb
->cmd
[8] = (unsigned char)blocks
& 0xff;
675 pccb
->msgout
[0] = SCSI_IDENTIFY
; /* NOT USED */
676 debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
678 pccb
->cmd
[0], pccb
->cmd
[1],
679 pccb
->cmd
[2], pccb
->cmd
[3], pccb
->cmd
[4], pccb
->cmd
[5],
680 pccb
->cmd
[7], pccb
->cmd
[8]);
683 void scsi_setup_read6(ccb
* pccb
, lbaint_t start
, unsigned short blocks
)
685 pccb
->cmd
[0]=SCSI_READ6
;
686 pccb
->cmd
[1]=pccb
->lun
<<5 | (((unsigned char)(start
>>16))&0x1f);
687 pccb
->cmd
[2]=((unsigned char) (start
>>8))&0xff;
688 pccb
->cmd
[3]=((unsigned char) (start
))&0xff;
689 pccb
->cmd
[4]=(unsigned char) blocks
& 0xff;
692 pccb
->msgout
[0]=SCSI_IDENTIFY
; /* NOT USED */
693 debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n",
694 pccb
->cmd
[0],pccb
->cmd
[1],
695 pccb
->cmd
[2],pccb
->cmd
[3],pccb
->cmd
[4]);
699 void scsi_setup_inquiry(ccb
* pccb
)
701 pccb
->cmd
[0]=SCSI_INQUIRY
;
702 pccb
->cmd
[1]=pccb
->lun
<<5;
705 if(pccb
->datalen
>255)
708 pccb
->cmd
[4]=(unsigned char)pccb
->datalen
;
711 pccb
->msgout
[0]=SCSI_IDENTIFY
; /* NOT USED */
718 "reset - reset SCSI controller\n"
719 "scsi info - show available SCSI devices\n"
720 "scsi scan - (re-)scan SCSI bus\n"
721 "scsi device [dev] - show or set current device\n"
722 "scsi part [dev] - print partition table of one or all SCSI devices\n"
723 "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
724 " to memory address `addr'\n"
725 "scsi write addr blk# cnt - write `cnt' blocks starting at block\n"
726 " `blk#' from memory address `addr'"
730 scsiboot
, 3, 1, do_scsiboot
,
731 "boot from SCSI device",