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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
Vadim Bendebury4ae5eb72012-10-29 05:23:45 +000037#ifdef CONFIG_SCSI_DEV_LIST
38#define SCSI_DEV_LIST CONFIG_SCSI_DEV_LIST
39#else
wdenke887afc2002-08-27 09:44:07 +000040#ifdef CONFIG_SCSI_SYM53C8XX
41#define SCSI_VEND_ID 0x1000
42#ifndef CONFIG_SCSI_DEV_ID
43#define SCSI_DEV_ID 0x0001
44#else
45#define SCSI_DEV_ID CONFIG_SCSI_DEV_ID
46#endif
Jin Zhengxiong4782ac82006-08-23 19:10:44 +080047#elif defined CONFIG_SATA_ULI5288
48
49#define SCSI_VEND_ID 0x10b9
50#define SCSI_DEV_ID 0x5288
51
Rob Herring942e3142011-07-06 16:13:36 +000052#elif !defined(CONFIG_SCSI_AHCI_PLAT)
Jin Zhengxiong4782ac82006-08-23 19:10:44 +080053#error no scsi device defined
wdenke887afc2002-08-27 09:44:07 +000054#endif
Vadim Bendebury4ae5eb72012-10-29 05:23:45 +000055#define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID}
56#endif
wdenke887afc2002-08-27 09:44:07 +000057
Vadim Bendebury4ae5eb72012-10-29 05:23:45 +000058#ifdef CONFIG_PCI
59const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST };
60#endif
wdenke887afc2002-08-27 09:44:07 +000061static ccb tempccb; /* temporary scsi command buffer */
62
63static unsigned char tempbuff[512]; /* temporary data buffer */
64
65static int scsi_max_devs; /* number of highest available scsi device */
66
67static int scsi_curr_dev; /* current device */
68
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020069static block_dev_desc_t scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE];
wdenke887afc2002-08-27 09:44:07 +000070
71/********************************************************************************
72 * forward declerations of some Setup Routines
73 */
74void scsi_setup_test_unit_ready(ccb * pccb);
wdenke887afc2002-08-27 09:44:07 +000075void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks);
76void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks);
Hung-Te Lin758c9e62012-10-29 05:23:46 +000077static void scsi_setup_write_ext(ccb *pccb, unsigned long start,
78 unsigned short blocks);
wdenke887afc2002-08-27 09:44:07 +000079void scsi_setup_inquiry(ccb * pccb);
80void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
81
82
Gabe Blackb4c5bbc2012-10-29 05:23:57 +000083static int scsi_read_capacity(ccb *pccb, lbaint_t *capacity,
84 unsigned long *blksz);
Hung-Te Lin758c9e62012-10-29 05:23:46 +000085static ulong scsi_read(int device, ulong blknr, lbaint_t blkcnt, void *buffer);
86static ulong scsi_write(int device, ulong blknr,
87 lbaint_t blkcnt, const void *buffer);
wdenke887afc2002-08-27 09:44:07 +000088
89
90/*********************************************************************************
91 * (re)-scan the scsi bus and reports scsi device info
92 * to the user if mode = 1
93 */
94void scsi_scan(int mode)
95{
96 unsigned char i,perq,modi,lun;
Gabe Blackb4c5bbc2012-10-29 05:23:57 +000097 lbaint_t capacity;
98 unsigned long blksz;
wdenke887afc2002-08-27 09:44:07 +000099 ccb* pccb=(ccb *)&tempccb;
100
101 if(mode==1) {
102 printf("scanning bus for devices...\n");
103 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200104 for(i=0;i<CONFIG_SYS_SCSI_MAX_DEVICE;i++) {
wdenke887afc2002-08-27 09:44:07 +0000105 scsi_dev_desc[i].target=0xff;
106 scsi_dev_desc[i].lun=0xff;
107 scsi_dev_desc[i].lba=0;
108 scsi_dev_desc[i].blksz=0;
Egbert Eich0472fbf2013-04-09 21:11:56 +0000109 scsi_dev_desc[i].log2blksz =
110 LOG2_INVALID(typeof(scsi_dev_desc[i].log2blksz));
wdenke887afc2002-08-27 09:44:07 +0000111 scsi_dev_desc[i].type=DEV_TYPE_UNKNOWN;
112 scsi_dev_desc[i].vendor[0]=0;
113 scsi_dev_desc[i].product[0]=0;
114 scsi_dev_desc[i].revision[0]=0;
York Sun472d5462013-04-01 11:29:11 -0700115 scsi_dev_desc[i].removable = false;
wdenke887afc2002-08-27 09:44:07 +0000116 scsi_dev_desc[i].if_type=IF_TYPE_SCSI;
117 scsi_dev_desc[i].dev=i;
118 scsi_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
119 scsi_dev_desc[i].block_read=scsi_read;
Hung-Te Lin758c9e62012-10-29 05:23:46 +0000120 scsi_dev_desc[i].block_write = scsi_write;
wdenke887afc2002-08-27 09:44:07 +0000121 }
122 scsi_max_devs=0;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200123 for(i=0;i<CONFIG_SYS_SCSI_MAX_SCSI_ID;i++) {
wdenke887afc2002-08-27 09:44:07 +0000124 pccb->target=i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200125 for(lun=0;lun<CONFIG_SYS_SCSI_MAX_LUN;lun++) {
wdenke887afc2002-08-27 09:44:07 +0000126 pccb->lun=lun;
127 pccb->pdata=(unsigned char *)&tempbuff;
128 pccb->datalen=512;
129 scsi_setup_inquiry(pccb);
York Sun472d5462013-04-01 11:29:11 -0700130 if (scsi_exec(pccb) != true) {
wdenke887afc2002-08-27 09:44:07 +0000131 if(pccb->contr_stat==SCSI_SEL_TIME_OUT) {
wdenk1a344f22005-02-03 23:00:49 +0000132 debug ("Selection timeout ID %d\n",pccb->target);
wdenke887afc2002-08-27 09:44:07 +0000133 continue; /* selection timeout => assuming no device present */
134 }
135 scsi_print_error(pccb);
136 continue;
137 }
138 perq=tempbuff[0];
139 modi=tempbuff[1];
140 if((perq & 0x1f)==0x1f) {
141 continue; /* skip unknown devices */
142 }
143 if((modi&0x80)==0x80) /* drive is removable */
York Sun472d5462013-04-01 11:29:11 -0700144 scsi_dev_desc[scsi_max_devs].removable=true;
wdenke887afc2002-08-27 09:44:07 +0000145 /* get info for this device */
Stefan Roese2309c132007-11-17 07:58:25 +0100146 scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].vendor[0],
147 &tempbuff[8], 8);
148 scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].product[0],
149 &tempbuff[16], 16);
150 scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].revision[0],
151 &tempbuff[32], 4);
wdenke887afc2002-08-27 09:44:07 +0000152 scsi_dev_desc[scsi_max_devs].target=pccb->target;
153 scsi_dev_desc[scsi_max_devs].lun=pccb->lun;
154
155 pccb->datalen=0;
156 scsi_setup_test_unit_ready(pccb);
York Sun472d5462013-04-01 11:29:11 -0700157 if (scsi_exec(pccb) != true) {
158 if (scsi_dev_desc[scsi_max_devs].removable == true) {
wdenke887afc2002-08-27 09:44:07 +0000159 scsi_dev_desc[scsi_max_devs].type=perq;
160 goto removable;
161 }
162 scsi_print_error(pccb);
163 continue;
164 }
Gabe Blackb4c5bbc2012-10-29 05:23:57 +0000165 if (scsi_read_capacity(pccb, &capacity, &blksz)) {
wdenke887afc2002-08-27 09:44:07 +0000166 scsi_print_error(pccb);
167 continue;
168 }
wdenke887afc2002-08-27 09:44:07 +0000169 scsi_dev_desc[scsi_max_devs].lba=capacity;
170 scsi_dev_desc[scsi_max_devs].blksz=blksz;
Egbert Eich0472fbf2013-04-09 21:11:56 +0000171 scsi_dev_desc[scsi_max_devs].log2blksz =
172 LOG2(scsi_dev_desc[scsi_max_devs].blksz);
wdenke887afc2002-08-27 09:44:07 +0000173 scsi_dev_desc[scsi_max_devs].type=perq;
174 init_part(&scsi_dev_desc[scsi_max_devs]);
175removable:
176 if(mode==1) {
177 printf (" Device %d: ", scsi_max_devs);
178 dev_print(&scsi_dev_desc[scsi_max_devs]);
179 } /* if mode */
180 scsi_max_devs++;
181 } /* next LUN */
182 }
183 if(scsi_max_devs>0)
184 scsi_curr_dev=0;
185 else
Wolfgang Denkd0ff51b2008-07-14 15:19:07 +0200186 scsi_curr_dev = -1;
Stefan Reinauer447c0312012-10-29 05:23:48 +0000187
188 printf("Found %d device(s).\n", scsi_max_devs);
189 setenv_ulong("scsidevs", scsi_max_devs);
190}
191
192int scsi_get_disk_count(void)
193{
194 return scsi_max_devs;
wdenke887afc2002-08-27 09:44:07 +0000195}
196
Rob Herring942e3142011-07-06 16:13:36 +0000197#ifdef CONFIG_PCI
wdenke887afc2002-08-27 09:44:07 +0000198void scsi_init(void)
199{
200 int busdevfunc;
Vadim Bendebury4ae5eb72012-10-29 05:23:45 +0000201 int i;
202 /*
203 * Find a device from the list, this driver will support a single
204 * controller.
205 */
206 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
207 /* get PCI Device ID */
208 busdevfunc = pci_find_device(scsi_device_list[i].vendor,
209 scsi_device_list[i].device,
210 0);
211 if (busdevfunc != -1)
212 break;
213 }
wdenke887afc2002-08-27 09:44:07 +0000214
Vadim Bendebury4ae5eb72012-10-29 05:23:45 +0000215 if (busdevfunc == -1) {
216 printf("Error: SCSI Controller(s) ");
217 for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
218 printf("%04X:%04X ",
219 scsi_device_list[i].vendor,
220 scsi_device_list[i].device);
221 }
222 printf("not found\n");
wdenke887afc2002-08-27 09:44:07 +0000223 return;
224 }
225#ifdef DEBUG
226 else {
Vadim Bendebury4ae5eb72012-10-29 05:23:45 +0000227 printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",
228 scsi_device_list[i].vendor,
229 scsi_device_list[i].device,
230 (busdevfunc >> 16) & 0xFF,
231 (busdevfunc >> 11) & 0x1F,
232 (busdevfunc >> 8) & 0x7);
wdenke887afc2002-08-27 09:44:07 +0000233 }
234#endif
235 scsi_low_level_init(busdevfunc);
236 scsi_scan(1);
237}
Rob Herring942e3142011-07-06 16:13:36 +0000238#endif
wdenke887afc2002-08-27 09:44:07 +0000239
Matthew McClintockdf3fc522011-05-24 05:31:19 +0000240#ifdef CONFIG_PARTITIONS
wdenke887afc2002-08-27 09:44:07 +0000241block_dev_desc_t * scsi_get_dev(int dev)
242{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200243 return (dev < CONFIG_SYS_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL;
wdenke887afc2002-08-27 09:44:07 +0000244}
Matthew McClintockdf3fc522011-05-24 05:31:19 +0000245#endif
wdenke887afc2002-08-27 09:44:07 +0000246
wdenke887afc2002-08-27 09:44:07 +0000247/******************************************************************************
248 * scsi boot command intepreter. Derived from diskboot
249 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200250int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenke887afc2002-08-27 09:44:07 +0000251{
Rob Herring7405a132012-09-21 04:02:30 +0000252 return common_diskboot(cmdtp, "scsi", argc, argv);
wdenke887afc2002-08-27 09:44:07 +0000253}
254
255/*********************************************************************************
256 * scsi command intepreter
257 */
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200258int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
wdenke887afc2002-08-27 09:44:07 +0000259{
260 switch (argc) {
Simon Glass4c12eeb2011-12-10 08:44:01 +0000261 case 0:
262 case 1:
263 return CMD_RET_USAGE;
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200264
Simon Glass4c12eeb2011-12-10 08:44:01 +0000265 case 2:
wdenke887afc2002-08-27 09:44:07 +0000266 if (strncmp(argv[1],"res",3) == 0) {
267 printf("\nReset SCSI\n");
268 scsi_bus_reset();
269 scsi_scan(1);
270 return 0;
271 }
272 if (strncmp(argv[1],"inf",3) == 0) {
273 int i;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200274 for (i=0; i<CONFIG_SYS_SCSI_MAX_DEVICE; ++i) {
wdenke887afc2002-08-27 09:44:07 +0000275 if(scsi_dev_desc[i].type==DEV_TYPE_UNKNOWN)
276 continue; /* list only known devices */
277 printf ("SCSI dev. %d: ", i);
278 dev_print(&scsi_dev_desc[i]);
279 }
280 return 0;
281 }
282 if (strncmp(argv[1],"dev",3) == 0) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200283 if ((scsi_curr_dev < 0) || (scsi_curr_dev >= CONFIG_SYS_SCSI_MAX_DEVICE)) {
wdenke887afc2002-08-27 09:44:07 +0000284 printf("\nno SCSI devices available\n");
285 return 1;
286 }
287 printf ("\n Device %d: ", scsi_curr_dev);
288 dev_print(&scsi_dev_desc[scsi_curr_dev]);
289 return 0;
290 }
291 if (strncmp(argv[1],"scan",4) == 0) {
292 scsi_scan(1);
293 return 0;
294 }
295 if (strncmp(argv[1],"part",4) == 0) {
296 int dev, ok;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200297 for (ok=0, dev=0; dev<CONFIG_SYS_SCSI_MAX_DEVICE; ++dev) {
wdenke887afc2002-08-27 09:44:07 +0000298 if (scsi_dev_desc[dev].type!=DEV_TYPE_UNKNOWN) {
299 ok++;
300 if (dev)
301 printf("\n");
wdenk1a344f22005-02-03 23:00:49 +0000302 debug ("print_part of %x\n",dev);
wdenke887afc2002-08-27 09:44:07 +0000303 print_part(&scsi_dev_desc[dev]);
304 }
305 }
306 if (!ok)
307 printf("\nno SCSI devices available\n");
308 return 1;
309 }
Simon Glass4c12eeb2011-12-10 08:44:01 +0000310 return CMD_RET_USAGE;
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200311 case 3:
wdenke887afc2002-08-27 09:44:07 +0000312 if (strncmp(argv[1],"dev",3) == 0) {
313 int dev = (int)simple_strtoul(argv[2], NULL, 10);
314 printf ("\nSCSI device %d: ", dev);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200315 if (dev >= CONFIG_SYS_SCSI_MAX_DEVICE) {
wdenke887afc2002-08-27 09:44:07 +0000316 printf("unknown device\n");
317 return 1;
318 }
319 printf ("\n Device %d: ", dev);
320 dev_print(&scsi_dev_desc[dev]);
321 if(scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
322 return 1;
323 }
324 scsi_curr_dev = dev;
325 printf("... is now current device\n");
326 return 0;
327 }
328 if (strncmp(argv[1],"part",4) == 0) {
329 int dev = (int)simple_strtoul(argv[2], NULL, 10);
330 if(scsi_dev_desc[dev].type != DEV_TYPE_UNKNOWN) {
331 print_part(&scsi_dev_desc[dev]);
332 }
333 else {
334 printf ("\nSCSI device %d not available\n", dev);
335 }
336 return 1;
337 }
Simon Glass4c12eeb2011-12-10 08:44:01 +0000338 return CMD_RET_USAGE;
wdenke887afc2002-08-27 09:44:07 +0000339 default:
340 /* at least 4 args */
341 if (strcmp(argv[1],"read") == 0) {
342 ulong addr = simple_strtoul(argv[2], NULL, 16);
343 ulong blk = simple_strtoul(argv[3], NULL, 16);
344 ulong cnt = simple_strtoul(argv[4], NULL, 16);
345 ulong n;
346 printf ("\nSCSI read: device %d block # %ld, count %ld ... ",
347 scsi_curr_dev, blk, cnt);
348 n = scsi_read(scsi_curr_dev, blk, cnt, (ulong *)addr);
349 printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR");
350 return 0;
Hung-Te Lin758c9e62012-10-29 05:23:46 +0000351 } else if (strcmp(argv[1], "write") == 0) {
352 ulong addr = simple_strtoul(argv[2], NULL, 16);
353 ulong blk = simple_strtoul(argv[3], NULL, 16);
354 ulong cnt = simple_strtoul(argv[4], NULL, 16);
355 ulong n;
356 printf("\nSCSI write: device %d block # %ld, "
357 "count %ld ... ",
358 scsi_curr_dev, blk, cnt);
359 n = scsi_write(scsi_curr_dev, blk, cnt,
360 (ulong *)addr);
361 printf("%ld blocks written: %s\n", n,
362 (n == cnt) ? "OK" : "ERROR");
363 return 0;
wdenke887afc2002-08-27 09:44:07 +0000364 }
365 } /* switch */
Simon Glass4c12eeb2011-12-10 08:44:01 +0000366 return CMD_RET_USAGE;
wdenke887afc2002-08-27 09:44:07 +0000367}
368
369/****************************************************************************************
370 * scsi_read
371 */
372
373#define SCSI_MAX_READ_BLK 0xFFFF /* almost the maximum amount of the scsi_ext command.. */
374
Hung-Te Lin758c9e62012-10-29 05:23:46 +0000375static ulong scsi_read(int device, ulong blknr, lbaint_t blkcnt, void *buffer)
wdenke887afc2002-08-27 09:44:07 +0000376{
Hung-Te Lin758c9e62012-10-29 05:23:46 +0000377 lbaint_t start, blks;
378 uintptr_t buf_addr;
wdenke887afc2002-08-27 09:44:07 +0000379 unsigned short smallblks;
380 ccb* pccb=(ccb *)&tempccb;
381 device&=0xff;
382 /* Setup device
383 */
384 pccb->target=scsi_dev_desc[device].target;
385 pccb->lun=scsi_dev_desc[device].lun;
386 buf_addr=(unsigned long)buffer;
387 start=blknr;
388 blks=blkcnt;
Hung-Te Lin758c9e62012-10-29 05:23:46 +0000389 debug("\nscsi_read: dev %d startblk " LBAF
390 ", blccnt " LBAF " buffer %lx\n",
391 device, start, blks, (unsigned long)buffer);
wdenke887afc2002-08-27 09:44:07 +0000392 do {
393 pccb->pdata=(unsigned char *)buf_addr;
394 if(blks>SCSI_MAX_READ_BLK) {
395 pccb->datalen=scsi_dev_desc[device].blksz * SCSI_MAX_READ_BLK;
396 smallblks=SCSI_MAX_READ_BLK;
397 scsi_setup_read_ext(pccb,start,smallblks);
398 start+=SCSI_MAX_READ_BLK;
399 blks-=SCSI_MAX_READ_BLK;
400 }
401 else {
402 pccb->datalen=scsi_dev_desc[device].blksz * blks;
403 smallblks=(unsigned short) blks;
404 scsi_setup_read_ext(pccb,start,smallblks);
405 start+=blks;
406 blks=0;
407 }
Hung-Te Lin758c9e62012-10-29 05:23:46 +0000408 debug("scsi_read_ext: startblk " LBAF
409 ", blccnt %x buffer %lx\n",
410 start, smallblks, buf_addr);
York Sun472d5462013-04-01 11:29:11 -0700411 if (scsi_exec(pccb) != true) {
wdenke887afc2002-08-27 09:44:07 +0000412 scsi_print_error(pccb);
413 blkcnt-=blks;
414 break;
415 }
416 buf_addr+=pccb->datalen;
417 } while(blks!=0);
Hung-Te Lin758c9e62012-10-29 05:23:46 +0000418 debug("scsi_read_ext: end startblk " LBAF
419 ", blccnt %x buffer %lx\n", start, smallblks, buf_addr);
wdenke887afc2002-08-27 09:44:07 +0000420 return(blkcnt);
421}
422
Hung-Te Lin758c9e62012-10-29 05:23:46 +0000423/*******************************************************************************
424 * scsi_write
425 */
426
427/* Almost the maximum amount of the scsi_ext command.. */
428#define SCSI_MAX_WRITE_BLK 0xFFFF
429
430static ulong scsi_write(int device, ulong blknr,
431 lbaint_t blkcnt, const void *buffer)
432{
433 lbaint_t start, blks;
434 uintptr_t buf_addr;
435 unsigned short smallblks;
436 ccb* pccb = (ccb *)&tempccb;
437 device &= 0xff;
438 /* Setup device
439 */
440 pccb->target = scsi_dev_desc[device].target;
441 pccb->lun = scsi_dev_desc[device].lun;
442 buf_addr = (unsigned long)buffer;
443 start = blknr;
444 blks = blkcnt;
445 debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
446 __func__, device, start, blks, (unsigned long)buffer);
447 do {
448 pccb->pdata = (unsigned char *)buf_addr;
449 if (blks > SCSI_MAX_WRITE_BLK) {
450 pccb->datalen = (scsi_dev_desc[device].blksz *
451 SCSI_MAX_WRITE_BLK);
452 smallblks = SCSI_MAX_WRITE_BLK;
453 scsi_setup_write_ext(pccb, start, smallblks);
454 start += SCSI_MAX_WRITE_BLK;
455 blks -= SCSI_MAX_WRITE_BLK;
456 } else {
457 pccb->datalen = scsi_dev_desc[device].blksz * blks;
458 smallblks = (unsigned short)blks;
459 scsi_setup_write_ext(pccb, start, smallblks);
460 start += blks;
461 blks = 0;
462 }
463 debug("%s: startblk " LBAF ", blccnt %x buffer %lx\n",
464 __func__, start, smallblks, buf_addr);
York Sun472d5462013-04-01 11:29:11 -0700465 if (scsi_exec(pccb) != true) {
Hung-Te Lin758c9e62012-10-29 05:23:46 +0000466 scsi_print_error(pccb);
467 blkcnt -= blks;
468 break;
469 }
470 buf_addr += pccb->datalen;
471 } while (blks != 0);
472 debug("%s: end startblk " LBAF ", blccnt %x buffer %lx\n",
473 __func__, start, smallblks, buf_addr);
474 return blkcnt;
475}
476
wdenke887afc2002-08-27 09:44:07 +0000477/* copy src to dest, skipping leading and trailing blanks
478 * and null terminate the string
479 */
480void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len)
481{
482 int start,end;
483
484 start=0;
485 while(start<len) {
486 if(src[start]!=' ')
487 break;
488 start++;
489 }
490 end=len-1;
491 while(end>start) {
492 if(src[end]!=' ')
493 break;
494 end--;
495 }
496 for( ; start<=end; start++) {
497 *dest++=src[start];
498 }
499 *dest='\0';
500}
501
502
wdenke887afc2002-08-27 09:44:07 +0000503/* Trim trailing blanks, and NUL-terminate string
504 */
505void scsi_trim_trail (unsigned char *str, unsigned int len)
506{
507 unsigned char *p = str + len - 1;
508
509 while (len-- > 0) {
510 *p-- = '\0';
511 if (*p != ' ') {
512 return;
513 }
514 }
515}
516
Gabe Blackb4c5bbc2012-10-29 05:23:57 +0000517int scsi_read_capacity(ccb *pccb, lbaint_t *capacity, unsigned long *blksz)
518{
519 *capacity = 0;
520
521 memset(pccb->cmd, 0, sizeof(pccb->cmd));
522 pccb->cmd[0] = SCSI_RD_CAPAC10;
523 pccb->cmd[1] = pccb->lun << 5;
524 pccb->cmdlen = 10;
525 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
526
527 pccb->datalen = 8;
York Sun472d5462013-04-01 11:29:11 -0700528 if (scsi_exec(pccb) != true)
Gabe Blackb4c5bbc2012-10-29 05:23:57 +0000529 return 1;
530
531 *capacity = ((lbaint_t)pccb->pdata[0] << 24) |
532 ((lbaint_t)pccb->pdata[1] << 16) |
533 ((lbaint_t)pccb->pdata[2] << 8) |
534 ((lbaint_t)pccb->pdata[3]);
535
536 if (*capacity != 0xffffffff) {
537 /* Read capacity (10) was sufficient for this drive. */
538 *blksz = ((unsigned long)pccb->pdata[4] << 24) |
539 ((unsigned long)pccb->pdata[5] << 16) |
540 ((unsigned long)pccb->pdata[6] << 8) |
541 ((unsigned long)pccb->pdata[7]);
542 return 0;
543 }
544
545 /* Read capacity (10) was insufficient. Use read capacity (16). */
546
547 memset(pccb->cmd, 0, sizeof(pccb->cmd));
548 pccb->cmd[0] = SCSI_RD_CAPAC16;
549 pccb->cmd[1] = 0x10;
550 pccb->cmdlen = 16;
551 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
552
553 pccb->datalen = 16;
York Sun472d5462013-04-01 11:29:11 -0700554 if (scsi_exec(pccb) != true)
Gabe Blackb4c5bbc2012-10-29 05:23:57 +0000555 return 1;
556
557 *capacity = ((uint64_t)pccb->pdata[0] << 56) |
558 ((uint64_t)pccb->pdata[1] << 48) |
559 ((uint64_t)pccb->pdata[2] << 40) |
560 ((uint64_t)pccb->pdata[3] << 32) |
561 ((uint64_t)pccb->pdata[4] << 24) |
562 ((uint64_t)pccb->pdata[5] << 16) |
563 ((uint64_t)pccb->pdata[6] << 8) |
564 ((uint64_t)pccb->pdata[7]);
565
566 *blksz = ((uint64_t)pccb->pdata[8] << 56) |
567 ((uint64_t)pccb->pdata[9] << 48) |
568 ((uint64_t)pccb->pdata[10] << 40) |
569 ((uint64_t)pccb->pdata[11] << 32) |
570 ((uint64_t)pccb->pdata[12] << 24) |
571 ((uint64_t)pccb->pdata[13] << 16) |
572 ((uint64_t)pccb->pdata[14] << 8) |
573 ((uint64_t)pccb->pdata[15]);
574
575 return 0;
576}
577
wdenke887afc2002-08-27 09:44:07 +0000578
579/************************************************************************************
580 * Some setup (fill-in) routines
581 */
582void scsi_setup_test_unit_ready(ccb * pccb)
583{
584 pccb->cmd[0]=SCSI_TST_U_RDY;
585 pccb->cmd[1]=pccb->lun<<5;
586 pccb->cmd[2]=0;
587 pccb->cmd[3]=0;
588 pccb->cmd[4]=0;
589 pccb->cmd[5]=0;
590 pccb->cmdlen=6;
591 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
592}
593
wdenke887afc2002-08-27 09:44:07 +0000594void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks)
595{
596 pccb->cmd[0]=SCSI_READ10;
597 pccb->cmd[1]=pccb->lun<<5;
598 pccb->cmd[2]=((unsigned char) (start>>24))&0xff;
599 pccb->cmd[3]=((unsigned char) (start>>16))&0xff;
600 pccb->cmd[4]=((unsigned char) (start>>8))&0xff;
601 pccb->cmd[5]=((unsigned char) (start))&0xff;
602 pccb->cmd[6]=0;
603 pccb->cmd[7]=((unsigned char) (blocks>>8))&0xff;
604 pccb->cmd[8]=(unsigned char) blocks & 0xff;
605 pccb->cmd[6]=0;
606 pccb->cmdlen=10;
607 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
wdenk1a344f22005-02-03 23:00:49 +0000608 debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
wdenke887afc2002-08-27 09:44:07 +0000609 pccb->cmd[0],pccb->cmd[1],
610 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4],pccb->cmd[5],
611 pccb->cmd[7],pccb->cmd[8]);
612}
613
Hung-Te Lin758c9e62012-10-29 05:23:46 +0000614void scsi_setup_write_ext(ccb *pccb, unsigned long start, unsigned short blocks)
615{
616 pccb->cmd[0] = SCSI_WRITE10;
617 pccb->cmd[1] = pccb->lun << 5;
618 pccb->cmd[2] = ((unsigned char) (start>>24)) & 0xff;
619 pccb->cmd[3] = ((unsigned char) (start>>16)) & 0xff;
620 pccb->cmd[4] = ((unsigned char) (start>>8)) & 0xff;
621 pccb->cmd[5] = ((unsigned char) (start)) & 0xff;
622 pccb->cmd[6] = 0;
623 pccb->cmd[7] = ((unsigned char) (blocks>>8)) & 0xff;
624 pccb->cmd[8] = (unsigned char)blocks & 0xff;
625 pccb->cmd[9] = 0;
626 pccb->cmdlen = 10;
627 pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
628 debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
629 __func__,
630 pccb->cmd[0], pccb->cmd[1],
631 pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
632 pccb->cmd[7], pccb->cmd[8]);
633}
634
wdenke887afc2002-08-27 09:44:07 +0000635void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks)
636{
637 pccb->cmd[0]=SCSI_READ6;
638 pccb->cmd[1]=pccb->lun<<5 | (((unsigned char)(start>>16))&0x1f);
639 pccb->cmd[2]=((unsigned char) (start>>8))&0xff;
640 pccb->cmd[3]=((unsigned char) (start))&0xff;
641 pccb->cmd[4]=(unsigned char) blocks & 0xff;
642 pccb->cmd[5]=0;
643 pccb->cmdlen=6;
644 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
wdenk1a344f22005-02-03 23:00:49 +0000645 debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n",
wdenke887afc2002-08-27 09:44:07 +0000646 pccb->cmd[0],pccb->cmd[1],
647 pccb->cmd[2],pccb->cmd[3],pccb->cmd[4]);
648}
649
650
651void scsi_setup_inquiry(ccb * pccb)
652{
653 pccb->cmd[0]=SCSI_INQUIRY;
654 pccb->cmd[1]=pccb->lun<<5;
655 pccb->cmd[2]=0;
656 pccb->cmd[3]=0;
657 if(pccb->datalen>255)
658 pccb->cmd[4]=255;
659 else
660 pccb->cmd[4]=(unsigned char)pccb->datalen;
661 pccb->cmd[5]=0;
662 pccb->cmdlen=6;
663 pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
664}
665
Wolfgang Denk460c3222005-08-04 01:14:12 +0200666
667U_BOOT_CMD(
668 scsi, 5, 1, do_scsi,
Peter Tyser2fb26042009-01-27 18:03:12 -0600669 "SCSI sub-system",
Wolfgang Denk460c3222005-08-04 01:14:12 +0200670 "reset - reset SCSI controller\n"
671 "scsi info - show available SCSI devices\n"
672 "scsi scan - (re-)scan SCSI bus\n"
673 "scsi device [dev] - show or set current device\n"
674 "scsi part [dev] - print partition table of one or all SCSI devices\n"
675 "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
Hung-Te Lin758c9e62012-10-29 05:23:46 +0000676 " to memory address `addr'\n"
677 "scsi write addr blk# cnt - write `cnt' blocks starting at block\n"
678 " `blk#' from memory address `addr'"
Wolfgang Denk460c3222005-08-04 01:14:12 +0200679);
680
681U_BOOT_CMD(
682 scsiboot, 3, 1, do_scsiboot,
Peter Tyser2fb26042009-01-27 18:03:12 -0600683 "boot from SCSI device",
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200684 "loadAddr dev:part"
Wolfgang Denk460c3222005-08-04 01:14:12 +0200685);