cmd_scsi.c 18 KB

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  1. /*
  2. * (C) Copyright 2001
  3. * Denis Peter, MPL AG Switzerland
  4. *
  5. * SPDX-License-Identifier: GPL-2.0+
  6. */
  7. /*
  8. * SCSI support.
  9. */
  10. #include <common.h>
  11. #include <command.h>
  12. #include <inttypes.h>
  13. #include <asm/processor.h>
  14. #include <scsi.h>
  15. #include <image.h>
  16. #include <pci.h>
  17. #ifdef CONFIG_SCSI_DEV_LIST
  18. #define SCSI_DEV_LIST CONFIG_SCSI_DEV_LIST
  19. #else
  20. #ifdef CONFIG_SCSI_SYM53C8XX
  21. #define SCSI_VEND_ID 0x1000
  22. #ifndef CONFIG_SCSI_DEV_ID
  23. #define SCSI_DEV_ID 0x0001
  24. #else
  25. #define SCSI_DEV_ID CONFIG_SCSI_DEV_ID
  26. #endif
  27. #elif defined CONFIG_SATA_ULI5288
  28. #define SCSI_VEND_ID 0x10b9
  29. #define SCSI_DEV_ID 0x5288
  30. #elif !defined(CONFIG_SCSI_AHCI_PLAT)
  31. #error no scsi device defined
  32. #endif
  33. #define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID}
  34. #endif
  35. #ifdef CONFIG_PCI
  36. const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST };
  37. #endif
  38. static ccb tempccb; /* temporary scsi command buffer */
  39. static unsigned char tempbuff[512]; /* temporary data buffer */
  40. static int scsi_max_devs; /* number of highest available scsi device */
  41. static int scsi_curr_dev; /* current device */
  42. static block_dev_desc_t scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE];
  43. /********************************************************************************
  44. * forward declerations of some Setup Routines
  45. */
  46. void scsi_setup_test_unit_ready(ccb * pccb);
  47. void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks);
  48. void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks);
  49. static void scsi_setup_write_ext(ccb *pccb, unsigned long start,
  50. unsigned short blocks);
  51. void scsi_setup_inquiry(ccb * pccb);
  52. void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
  53. static int scsi_read_capacity(ccb *pccb, lbaint_t *capacity,
  54. unsigned long *blksz);
  55. static ulong scsi_read(int device, lbaint_t blknr, lbaint_t blkcnt,
  56. void *buffer);
  57. static ulong scsi_write(int device, lbaint_t blknr,
  58. lbaint_t blkcnt, const void *buffer);
  59. /*********************************************************************************
  60. * (re)-scan the scsi bus and reports scsi device info
  61. * to the user if mode = 1
  62. */
  63. void scsi_scan(int mode)
  64. {
  65. unsigned char i,perq,modi,lun;
  66. lbaint_t capacity;
  67. unsigned long blksz;
  68. ccb* pccb=(ccb *)&tempccb;
  69. if(mode==1) {
  70. printf("scanning bus for devices...\n");
  71. }
  72. for(i=0;i<CONFIG_SYS_SCSI_MAX_DEVICE;i++) {
  73. scsi_dev_desc[i].target=0xff;
  74. scsi_dev_desc[i].lun=0xff;
  75. scsi_dev_desc[i].lba=0;
  76. scsi_dev_desc[i].blksz=0;
  77. scsi_dev_desc[i].log2blksz =
  78. LOG2_INVALID(typeof(scsi_dev_desc[i].log2blksz));
  79. scsi_dev_desc[i].type=DEV_TYPE_UNKNOWN;
  80. scsi_dev_desc[i].vendor[0]=0;
  81. scsi_dev_desc[i].product[0]=0;
  82. scsi_dev_desc[i].revision[0]=0;
  83. scsi_dev_desc[i].removable = false;
  84. scsi_dev_desc[i].if_type=IF_TYPE_SCSI;
  85. scsi_dev_desc[i].dev=i;
  86. scsi_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
  87. scsi_dev_desc[i].block_read=scsi_read;
  88. scsi_dev_desc[i].block_write = scsi_write;
  89. }
  90. scsi_max_devs=0;
  91. for(i=0;i<CONFIG_SYS_SCSI_MAX_SCSI_ID;i++) {
  92. pccb->target=i;
  93. for(lun=0;lun<CONFIG_SYS_SCSI_MAX_LUN;lun++) {
  94. pccb->lun=lun;
  95. pccb->pdata=(unsigned char *)&tempbuff;
  96. pccb->datalen=512;
  97. scsi_setup_inquiry(pccb);
  98. if (scsi_exec(pccb) != true) {
  99. if(pccb->contr_stat==SCSI_SEL_TIME_OUT) {
  100. debug ("Selection timeout ID %d\n",pccb->target);
  101. continue; /* selection timeout => assuming no device present */
  102. }
  103. scsi_print_error(pccb);
  104. continue;
  105. }
  106. perq=tempbuff[0];
  107. modi=tempbuff[1];
  108. if((perq & 0x1f)==0x1f) {
  109. continue; /* skip unknown devices */
  110. }
  111. if((modi&0x80)==0x80) /* drive is removable */
  112. scsi_dev_desc[scsi_max_devs].removable=true;
  113. /* get info for this device */
  114. scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].vendor[0],
  115. &tempbuff[8], 8);
  116. scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].product[0],
  117. &tempbuff[16], 16);
  118. scsi_ident_cpy((unsigned char *)&scsi_dev_desc[scsi_max_devs].revision[0],
  119. &tempbuff[32], 4);
  120. scsi_dev_desc[scsi_max_devs].target=pccb->target;
  121. scsi_dev_desc[scsi_max_devs].lun=pccb->lun;
  122. pccb->datalen=0;
  123. scsi_setup_test_unit_ready(pccb);
  124. if (scsi_exec(pccb) != true) {
  125. if (scsi_dev_desc[scsi_max_devs].removable == true) {
  126. scsi_dev_desc[scsi_max_devs].type=perq;
  127. goto removable;
  128. }
  129. scsi_print_error(pccb);
  130. continue;
  131. }
  132. if (scsi_read_capacity(pccb, &capacity, &blksz)) {
  133. scsi_print_error(pccb);
  134. continue;
  135. }
  136. scsi_dev_desc[scsi_max_devs].lba=capacity;
  137. scsi_dev_desc[scsi_max_devs].blksz=blksz;
  138. scsi_dev_desc[scsi_max_devs].log2blksz =
  139. LOG2(scsi_dev_desc[scsi_max_devs].blksz);
  140. scsi_dev_desc[scsi_max_devs].type=perq;
  141. init_part(&scsi_dev_desc[scsi_max_devs]);
  142. removable:
  143. if(mode==1) {
  144. printf (" Device %d: ", scsi_max_devs);
  145. dev_print(&scsi_dev_desc[scsi_max_devs]);
  146. } /* if mode */
  147. scsi_max_devs++;
  148. } /* next LUN */
  149. }
  150. if(scsi_max_devs>0)
  151. scsi_curr_dev=0;
  152. else
  153. scsi_curr_dev = -1;
  154. printf("Found %d device(s).\n", scsi_max_devs);
  155. #ifndef CONFIG_SPL_BUILD
  156. setenv_ulong("scsidevs", scsi_max_devs);
  157. #endif
  158. }
  159. int scsi_get_disk_count(void)
  160. {
  161. return scsi_max_devs;
  162. }
  163. #ifdef CONFIG_PCI
  164. void scsi_init(void)
  165. {
  166. int busdevfunc;
  167. int i;
  168. /*
  169. * Find a device from the list, this driver will support a single
  170. * controller.
  171. */
  172. for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
  173. /* get PCI Device ID */
  174. busdevfunc = pci_find_device(scsi_device_list[i].vendor,
  175. scsi_device_list[i].device,
  176. 0);
  177. if (busdevfunc != -1)
  178. break;
  179. }
  180. if (busdevfunc == -1) {
  181. printf("Error: SCSI Controller(s) ");
  182. for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
  183. printf("%04X:%04X ",
  184. scsi_device_list[i].vendor,
  185. scsi_device_list[i].device);
  186. }
  187. printf("not found\n");
  188. return;
  189. }
  190. #ifdef DEBUG
  191. else {
  192. printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",
  193. scsi_device_list[i].vendor,
  194. scsi_device_list[i].device,
  195. (busdevfunc >> 16) & 0xFF,
  196. (busdevfunc >> 11) & 0x1F,
  197. (busdevfunc >> 8) & 0x7);
  198. }
  199. #endif
  200. scsi_low_level_init(busdevfunc);
  201. scsi_scan(1);
  202. }
  203. #endif
  204. #ifdef CONFIG_PARTITIONS
  205. block_dev_desc_t * scsi_get_dev(int dev)
  206. {
  207. return (dev < CONFIG_SYS_SCSI_MAX_DEVICE) ? &scsi_dev_desc[dev] : NULL;
  208. }
  209. #endif
  210. /******************************************************************************
  211. * scsi boot command intepreter. Derived from diskboot
  212. */
  213. int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  214. {
  215. return common_diskboot(cmdtp, "scsi", argc, argv);
  216. }
  217. /*********************************************************************************
  218. * scsi command intepreter
  219. */
  220. int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  221. {
  222. switch (argc) {
  223. case 0:
  224. case 1:
  225. return CMD_RET_USAGE;
  226. case 2:
  227. if (strncmp(argv[1],"res",3) == 0) {
  228. printf("\nReset SCSI\n");
  229. scsi_bus_reset();
  230. scsi_scan(1);
  231. return 0;
  232. }
  233. if (strncmp(argv[1],"inf",3) == 0) {
  234. int i;
  235. for (i=0; i<CONFIG_SYS_SCSI_MAX_DEVICE; ++i) {
  236. if(scsi_dev_desc[i].type==DEV_TYPE_UNKNOWN)
  237. continue; /* list only known devices */
  238. printf ("SCSI dev. %d: ", i);
  239. dev_print(&scsi_dev_desc[i]);
  240. }
  241. return 0;
  242. }
  243. if (strncmp(argv[1],"dev",3) == 0) {
  244. if ((scsi_curr_dev < 0) || (scsi_curr_dev >= CONFIG_SYS_SCSI_MAX_DEVICE)) {
  245. printf("\nno SCSI devices available\n");
  246. return 1;
  247. }
  248. printf ("\n Device %d: ", scsi_curr_dev);
  249. dev_print(&scsi_dev_desc[scsi_curr_dev]);
  250. return 0;
  251. }
  252. if (strncmp(argv[1],"scan",4) == 0) {
  253. scsi_scan(1);
  254. return 0;
  255. }
  256. if (strncmp(argv[1],"part",4) == 0) {
  257. int dev, ok;
  258. for (ok=0, dev=0; dev<CONFIG_SYS_SCSI_MAX_DEVICE; ++dev) {
  259. if (scsi_dev_desc[dev].type!=DEV_TYPE_UNKNOWN) {
  260. ok++;
  261. if (dev)
  262. printf("\n");
  263. debug ("print_part of %x\n",dev);
  264. print_part(&scsi_dev_desc[dev]);
  265. }
  266. }
  267. if (!ok)
  268. printf("\nno SCSI devices available\n");
  269. return 1;
  270. }
  271. return CMD_RET_USAGE;
  272. case 3:
  273. if (strncmp(argv[1],"dev",3) == 0) {
  274. int dev = (int)simple_strtoul(argv[2], NULL, 10);
  275. printf ("\nSCSI device %d: ", dev);
  276. if (dev >= CONFIG_SYS_SCSI_MAX_DEVICE) {
  277. printf("unknown device\n");
  278. return 1;
  279. }
  280. printf ("\n Device %d: ", dev);
  281. dev_print(&scsi_dev_desc[dev]);
  282. if(scsi_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
  283. return 1;
  284. }
  285. scsi_curr_dev = dev;
  286. printf("... is now current device\n");
  287. return 0;
  288. }
  289. if (strncmp(argv[1],"part",4) == 0) {
  290. int dev = (int)simple_strtoul(argv[2], NULL, 10);
  291. if(scsi_dev_desc[dev].type != DEV_TYPE_UNKNOWN) {
  292. print_part(&scsi_dev_desc[dev]);
  293. }
  294. else {
  295. printf ("\nSCSI device %d not available\n", dev);
  296. }
  297. return 1;
  298. }
  299. return CMD_RET_USAGE;
  300. default:
  301. /* at least 4 args */
  302. if (strcmp(argv[1],"read") == 0) {
  303. ulong addr = simple_strtoul(argv[2], NULL, 16);
  304. ulong blk = simple_strtoul(argv[3], NULL, 16);
  305. ulong cnt = simple_strtoul(argv[4], NULL, 16);
  306. ulong n;
  307. printf ("\nSCSI read: device %d block # %ld, count %ld ... ",
  308. scsi_curr_dev, blk, cnt);
  309. n = scsi_read(scsi_curr_dev, blk, cnt, (ulong *)addr);
  310. printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR");
  311. return 0;
  312. } else if (strcmp(argv[1], "write") == 0) {
  313. ulong addr = simple_strtoul(argv[2], NULL, 16);
  314. ulong blk = simple_strtoul(argv[3], NULL, 16);
  315. ulong cnt = simple_strtoul(argv[4], NULL, 16);
  316. ulong n;
  317. printf("\nSCSI write: device %d block # %ld, "
  318. "count %ld ... ",
  319. scsi_curr_dev, blk, cnt);
  320. n = scsi_write(scsi_curr_dev, blk, cnt,
  321. (ulong *)addr);
  322. printf("%ld blocks written: %s\n", n,
  323. (n == cnt) ? "OK" : "ERROR");
  324. return 0;
  325. }
  326. } /* switch */
  327. return CMD_RET_USAGE;
  328. }
  329. /****************************************************************************************
  330. * scsi_read
  331. */
  332. #define SCSI_MAX_READ_BLK 0xFFFF /* almost the maximum amount of the scsi_ext command.. */
  333. static ulong scsi_read(int device, lbaint_t blknr, lbaint_t blkcnt,
  334. void *buffer)
  335. {
  336. lbaint_t start, blks;
  337. uintptr_t buf_addr;
  338. unsigned short smallblks;
  339. ccb* pccb=(ccb *)&tempccb;
  340. device&=0xff;
  341. /* Setup device
  342. */
  343. pccb->target=scsi_dev_desc[device].target;
  344. pccb->lun=scsi_dev_desc[device].lun;
  345. buf_addr=(unsigned long)buffer;
  346. start=blknr;
  347. blks=blkcnt;
  348. debug("\nscsi_read: dev %d startblk " LBAF
  349. ", blccnt " LBAF " buffer %lx\n",
  350. device, start, blks, (unsigned long)buffer);
  351. do {
  352. pccb->pdata=(unsigned char *)buf_addr;
  353. if(blks>SCSI_MAX_READ_BLK) {
  354. pccb->datalen=scsi_dev_desc[device].blksz * SCSI_MAX_READ_BLK;
  355. smallblks=SCSI_MAX_READ_BLK;
  356. scsi_setup_read_ext(pccb,start,smallblks);
  357. start+=SCSI_MAX_READ_BLK;
  358. blks-=SCSI_MAX_READ_BLK;
  359. }
  360. else {
  361. pccb->datalen=scsi_dev_desc[device].blksz * blks;
  362. smallblks=(unsigned short) blks;
  363. scsi_setup_read_ext(pccb,start,smallblks);
  364. start+=blks;
  365. blks=0;
  366. }
  367. debug("scsi_read_ext: startblk " LBAF
  368. ", blccnt %x buffer %" PRIXPTR "\n",
  369. start, smallblks, buf_addr);
  370. if (scsi_exec(pccb) != true) {
  371. scsi_print_error(pccb);
  372. blkcnt-=blks;
  373. break;
  374. }
  375. buf_addr+=pccb->datalen;
  376. } while(blks!=0);
  377. debug("scsi_read_ext: end startblk " LBAF
  378. ", blccnt %x buffer %" PRIXPTR "\n", start, smallblks, buf_addr);
  379. return(blkcnt);
  380. }
  381. /*******************************************************************************
  382. * scsi_write
  383. */
  384. /* Almost the maximum amount of the scsi_ext command.. */
  385. #define SCSI_MAX_WRITE_BLK 0xFFFF
  386. static ulong scsi_write(int device, lbaint_t blknr,
  387. lbaint_t blkcnt, const void *buffer)
  388. {
  389. lbaint_t start, blks;
  390. uintptr_t buf_addr;
  391. unsigned short smallblks;
  392. ccb* pccb = (ccb *)&tempccb;
  393. device &= 0xff;
  394. /* Setup device
  395. */
  396. pccb->target = scsi_dev_desc[device].target;
  397. pccb->lun = scsi_dev_desc[device].lun;
  398. buf_addr = (unsigned long)buffer;
  399. start = blknr;
  400. blks = blkcnt;
  401. debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
  402. __func__, device, start, blks, (unsigned long)buffer);
  403. do {
  404. pccb->pdata = (unsigned char *)buf_addr;
  405. if (blks > SCSI_MAX_WRITE_BLK) {
  406. pccb->datalen = (scsi_dev_desc[device].blksz *
  407. SCSI_MAX_WRITE_BLK);
  408. smallblks = SCSI_MAX_WRITE_BLK;
  409. scsi_setup_write_ext(pccb, start, smallblks);
  410. start += SCSI_MAX_WRITE_BLK;
  411. blks -= SCSI_MAX_WRITE_BLK;
  412. } else {
  413. pccb->datalen = scsi_dev_desc[device].blksz * blks;
  414. smallblks = (unsigned short)blks;
  415. scsi_setup_write_ext(pccb, start, smallblks);
  416. start += blks;
  417. blks = 0;
  418. }
  419. debug("%s: startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n",
  420. __func__, start, smallblks, buf_addr);
  421. if (scsi_exec(pccb) != true) {
  422. scsi_print_error(pccb);
  423. blkcnt -= blks;
  424. break;
  425. }
  426. buf_addr += pccb->datalen;
  427. } while (blks != 0);
  428. debug("%s: end startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n",
  429. __func__, start, smallblks, buf_addr);
  430. return blkcnt;
  431. }
  432. /* copy src to dest, skipping leading and trailing blanks
  433. * and null terminate the string
  434. */
  435. void scsi_ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len)
  436. {
  437. int start,end;
  438. start=0;
  439. while(start<len) {
  440. if(src[start]!=' ')
  441. break;
  442. start++;
  443. }
  444. end=len-1;
  445. while(end>start) {
  446. if(src[end]!=' ')
  447. break;
  448. end--;
  449. }
  450. for( ; start<=end; start++) {
  451. *dest++=src[start];
  452. }
  453. *dest='\0';
  454. }
  455. /* Trim trailing blanks, and NUL-terminate string
  456. */
  457. void scsi_trim_trail (unsigned char *str, unsigned int len)
  458. {
  459. unsigned char *p = str + len - 1;
  460. while (len-- > 0) {
  461. *p-- = '\0';
  462. if (*p != ' ') {
  463. return;
  464. }
  465. }
  466. }
  467. int scsi_read_capacity(ccb *pccb, lbaint_t *capacity, unsigned long *blksz)
  468. {
  469. *capacity = 0;
  470. memset(pccb->cmd, 0, sizeof(pccb->cmd));
  471. pccb->cmd[0] = SCSI_RD_CAPAC10;
  472. pccb->cmd[1] = pccb->lun << 5;
  473. pccb->cmdlen = 10;
  474. pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
  475. pccb->datalen = 8;
  476. if (scsi_exec(pccb) != true)
  477. return 1;
  478. *capacity = ((lbaint_t)pccb->pdata[0] << 24) |
  479. ((lbaint_t)pccb->pdata[1] << 16) |
  480. ((lbaint_t)pccb->pdata[2] << 8) |
  481. ((lbaint_t)pccb->pdata[3]);
  482. if (*capacity != 0xffffffff) {
  483. /* Read capacity (10) was sufficient for this drive. */
  484. *blksz = ((unsigned long)pccb->pdata[4] << 24) |
  485. ((unsigned long)pccb->pdata[5] << 16) |
  486. ((unsigned long)pccb->pdata[6] << 8) |
  487. ((unsigned long)pccb->pdata[7]);
  488. return 0;
  489. }
  490. /* Read capacity (10) was insufficient. Use read capacity (16). */
  491. memset(pccb->cmd, 0, sizeof(pccb->cmd));
  492. pccb->cmd[0] = SCSI_RD_CAPAC16;
  493. pccb->cmd[1] = 0x10;
  494. pccb->cmdlen = 16;
  495. pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
  496. pccb->datalen = 16;
  497. if (scsi_exec(pccb) != true)
  498. return 1;
  499. *capacity = ((uint64_t)pccb->pdata[0] << 56) |
  500. ((uint64_t)pccb->pdata[1] << 48) |
  501. ((uint64_t)pccb->pdata[2] << 40) |
  502. ((uint64_t)pccb->pdata[3] << 32) |
  503. ((uint64_t)pccb->pdata[4] << 24) |
  504. ((uint64_t)pccb->pdata[5] << 16) |
  505. ((uint64_t)pccb->pdata[6] << 8) |
  506. ((uint64_t)pccb->pdata[7]);
  507. *blksz = ((uint64_t)pccb->pdata[8] << 56) |
  508. ((uint64_t)pccb->pdata[9] << 48) |
  509. ((uint64_t)pccb->pdata[10] << 40) |
  510. ((uint64_t)pccb->pdata[11] << 32) |
  511. ((uint64_t)pccb->pdata[12] << 24) |
  512. ((uint64_t)pccb->pdata[13] << 16) |
  513. ((uint64_t)pccb->pdata[14] << 8) |
  514. ((uint64_t)pccb->pdata[15]);
  515. return 0;
  516. }
  517. /************************************************************************************
  518. * Some setup (fill-in) routines
  519. */
  520. void scsi_setup_test_unit_ready(ccb * pccb)
  521. {
  522. pccb->cmd[0]=SCSI_TST_U_RDY;
  523. pccb->cmd[1]=pccb->lun<<5;
  524. pccb->cmd[2]=0;
  525. pccb->cmd[3]=0;
  526. pccb->cmd[4]=0;
  527. pccb->cmd[5]=0;
  528. pccb->cmdlen=6;
  529. pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
  530. }
  531. void scsi_setup_read_ext(ccb * pccb, unsigned long start, unsigned short blocks)
  532. {
  533. pccb->cmd[0]=SCSI_READ10;
  534. pccb->cmd[1]=pccb->lun<<5;
  535. pccb->cmd[2]=((unsigned char) (start>>24))&0xff;
  536. pccb->cmd[3]=((unsigned char) (start>>16))&0xff;
  537. pccb->cmd[4]=((unsigned char) (start>>8))&0xff;
  538. pccb->cmd[5]=((unsigned char) (start))&0xff;
  539. pccb->cmd[6]=0;
  540. pccb->cmd[7]=((unsigned char) (blocks>>8))&0xff;
  541. pccb->cmd[8]=(unsigned char) blocks & 0xff;
  542. pccb->cmd[6]=0;
  543. pccb->cmdlen=10;
  544. pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
  545. debug ("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
  546. pccb->cmd[0],pccb->cmd[1],
  547. pccb->cmd[2],pccb->cmd[3],pccb->cmd[4],pccb->cmd[5],
  548. pccb->cmd[7],pccb->cmd[8]);
  549. }
  550. void scsi_setup_write_ext(ccb *pccb, unsigned long start, unsigned short blocks)
  551. {
  552. pccb->cmd[0] = SCSI_WRITE10;
  553. pccb->cmd[1] = pccb->lun << 5;
  554. pccb->cmd[2] = ((unsigned char) (start>>24)) & 0xff;
  555. pccb->cmd[3] = ((unsigned char) (start>>16)) & 0xff;
  556. pccb->cmd[4] = ((unsigned char) (start>>8)) & 0xff;
  557. pccb->cmd[5] = ((unsigned char) (start)) & 0xff;
  558. pccb->cmd[6] = 0;
  559. pccb->cmd[7] = ((unsigned char) (blocks>>8)) & 0xff;
  560. pccb->cmd[8] = (unsigned char)blocks & 0xff;
  561. pccb->cmd[9] = 0;
  562. pccb->cmdlen = 10;
  563. pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
  564. debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
  565. __func__,
  566. pccb->cmd[0], pccb->cmd[1],
  567. pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
  568. pccb->cmd[7], pccb->cmd[8]);
  569. }
  570. void scsi_setup_read6(ccb * pccb, unsigned long start, unsigned short blocks)
  571. {
  572. pccb->cmd[0]=SCSI_READ6;
  573. pccb->cmd[1]=pccb->lun<<5 | (((unsigned char)(start>>16))&0x1f);
  574. pccb->cmd[2]=((unsigned char) (start>>8))&0xff;
  575. pccb->cmd[3]=((unsigned char) (start))&0xff;
  576. pccb->cmd[4]=(unsigned char) blocks & 0xff;
  577. pccb->cmd[5]=0;
  578. pccb->cmdlen=6;
  579. pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
  580. debug ("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n",
  581. pccb->cmd[0],pccb->cmd[1],
  582. pccb->cmd[2],pccb->cmd[3],pccb->cmd[4]);
  583. }
  584. void scsi_setup_inquiry(ccb * pccb)
  585. {
  586. pccb->cmd[0]=SCSI_INQUIRY;
  587. pccb->cmd[1]=pccb->lun<<5;
  588. pccb->cmd[2]=0;
  589. pccb->cmd[3]=0;
  590. if(pccb->datalen>255)
  591. pccb->cmd[4]=255;
  592. else
  593. pccb->cmd[4]=(unsigned char)pccb->datalen;
  594. pccb->cmd[5]=0;
  595. pccb->cmdlen=6;
  596. pccb->msgout[0]=SCSI_IDENTIFY; /* NOT USED */
  597. }
  598. U_BOOT_CMD(
  599. scsi, 5, 1, do_scsi,
  600. "SCSI sub-system",
  601. "reset - reset SCSI controller\n"
  602. "scsi info - show available SCSI devices\n"
  603. "scsi scan - (re-)scan SCSI bus\n"
  604. "scsi device [dev] - show or set current device\n"
  605. "scsi part [dev] - print partition table of one or all SCSI devices\n"
  606. "scsi read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
  607. " to memory address `addr'\n"
  608. "scsi write addr blk# cnt - write `cnt' blocks starting at block\n"
  609. " `blk#' from memory address `addr'"
  610. );
  611. U_BOOT_CMD(
  612. scsiboot, 3, 1, do_scsiboot,
  613. "boot from SCSI device",
  614. "loadAddr dev:part"
  615. );