scsi.c 16 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. #include <common.h>
  8. #include <dm.h>
  9. #include <inttypes.h>
  10. #include <pci.h>
  11. #include <scsi.h>
  12. #ifdef CONFIG_SCSI_DEV_LIST
  13. #define SCSI_DEV_LIST CONFIG_SCSI_DEV_LIST
  14. #else
  15. #ifdef CONFIG_SCSI_SYM53C8XX
  16. #define SCSI_VEND_ID 0x1000
  17. #ifndef CONFIG_SCSI_DEV_ID
  18. #define SCSI_DEV_ID 0x0001
  19. #else
  20. #define SCSI_DEV_ID CONFIG_SCSI_DEV_ID
  21. #endif
  22. #elif defined CONFIG_SATA_ULI5288
  23. #define SCSI_VEND_ID 0x10b9
  24. #define SCSI_DEV_ID 0x5288
  25. #elif !defined(CONFIG_SCSI_AHCI_PLAT)
  26. #error no scsi device defined
  27. #endif
  28. #define SCSI_DEV_LIST {SCSI_VEND_ID, SCSI_DEV_ID}
  29. #endif
  30. #if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT)
  31. const struct pci_device_id scsi_device_list[] = { SCSI_DEV_LIST };
  32. #endif
  33. static ccb tempccb; /* temporary scsi command buffer */
  34. static unsigned char tempbuff[512]; /* temporary data buffer */
  35. static int scsi_max_devs; /* number of highest available scsi device */
  36. static int scsi_curr_dev; /* current device */
  37. static struct blk_desc scsi_dev_desc[CONFIG_SYS_SCSI_MAX_DEVICE];
  38. /* almost the maximum amount of the scsi_ext command.. */
  39. #define SCSI_MAX_READ_BLK 0xFFFF
  40. #define SCSI_LBA48_READ 0xFFFFFFF
  41. #ifdef CONFIG_SYS_64BIT_LBA
  42. void scsi_setup_read16(ccb *pccb, lbaint_t start, unsigned long blocks)
  43. {
  44. pccb->cmd[0] = SCSI_READ16;
  45. pccb->cmd[1] = pccb->lun << 5;
  46. pccb->cmd[2] = (unsigned char)(start >> 56) & 0xff;
  47. pccb->cmd[3] = (unsigned char)(start >> 48) & 0xff;
  48. pccb->cmd[4] = (unsigned char)(start >> 40) & 0xff;
  49. pccb->cmd[5] = (unsigned char)(start >> 32) & 0xff;
  50. pccb->cmd[6] = (unsigned char)(start >> 24) & 0xff;
  51. pccb->cmd[7] = (unsigned char)(start >> 16) & 0xff;
  52. pccb->cmd[8] = (unsigned char)(start >> 8) & 0xff;
  53. pccb->cmd[9] = (unsigned char)start & 0xff;
  54. pccb->cmd[10] = 0;
  55. pccb->cmd[11] = (unsigned char)(blocks >> 24) & 0xff;
  56. pccb->cmd[12] = (unsigned char)(blocks >> 16) & 0xff;
  57. pccb->cmd[13] = (unsigned char)(blocks >> 8) & 0xff;
  58. pccb->cmd[14] = (unsigned char)blocks & 0xff;
  59. pccb->cmd[15] = 0;
  60. pccb->cmdlen = 16;
  61. pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
  62. debug("scsi_setup_read16: cmd: %02X %02X startblk %02X%02X%02X%02X%02X%02X%02X%02X blccnt %02X%02X%02X%02X\n",
  63. pccb->cmd[0], pccb->cmd[1],
  64. pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
  65. pccb->cmd[6], pccb->cmd[7], pccb->cmd[8], pccb->cmd[9],
  66. pccb->cmd[11], pccb->cmd[12], pccb->cmd[13], pccb->cmd[14]);
  67. }
  68. #endif
  69. void scsi_setup_read_ext(ccb *pccb, lbaint_t start, unsigned short blocks)
  70. {
  71. pccb->cmd[0] = SCSI_READ10;
  72. pccb->cmd[1] = pccb->lun << 5;
  73. pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff;
  74. pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff;
  75. pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff;
  76. pccb->cmd[5] = (unsigned char)start & 0xff;
  77. pccb->cmd[6] = 0;
  78. pccb->cmd[7] = (unsigned char)(blocks >> 8) & 0xff;
  79. pccb->cmd[8] = (unsigned char)blocks & 0xff;
  80. pccb->cmd[6] = 0;
  81. pccb->cmdlen = 10;
  82. pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
  83. debug("scsi_setup_read_ext: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
  84. pccb->cmd[0], pccb->cmd[1],
  85. pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
  86. pccb->cmd[7], pccb->cmd[8]);
  87. }
  88. void scsi_setup_write_ext(ccb *pccb, lbaint_t start, unsigned short blocks)
  89. {
  90. pccb->cmd[0] = SCSI_WRITE10;
  91. pccb->cmd[1] = pccb->lun << 5;
  92. pccb->cmd[2] = (unsigned char)(start >> 24) & 0xff;
  93. pccb->cmd[3] = (unsigned char)(start >> 16) & 0xff;
  94. pccb->cmd[4] = (unsigned char)(start >> 8) & 0xff;
  95. pccb->cmd[5] = (unsigned char)start & 0xff;
  96. pccb->cmd[6] = 0;
  97. pccb->cmd[7] = ((unsigned char)(blocks >> 8)) & 0xff;
  98. pccb->cmd[8] = (unsigned char)blocks & 0xff;
  99. pccb->cmd[9] = 0;
  100. pccb->cmdlen = 10;
  101. pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
  102. debug("%s: cmd: %02X %02X startblk %02X%02X%02X%02X blccnt %02X%02X\n",
  103. __func__,
  104. pccb->cmd[0], pccb->cmd[1],
  105. pccb->cmd[2], pccb->cmd[3], pccb->cmd[4], pccb->cmd[5],
  106. pccb->cmd[7], pccb->cmd[8]);
  107. }
  108. void scsi_setup_read6(ccb *pccb, lbaint_t start, unsigned short blocks)
  109. {
  110. pccb->cmd[0] = SCSI_READ6;
  111. pccb->cmd[1] = pccb->lun << 5 | ((unsigned char)(start >> 16) & 0x1f);
  112. pccb->cmd[2] = (unsigned char)(start >> 8) & 0xff;
  113. pccb->cmd[3] = (unsigned char)start & 0xff;
  114. pccb->cmd[4] = (unsigned char)blocks & 0xff;
  115. pccb->cmd[5] = 0;
  116. pccb->cmdlen = 6;
  117. pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
  118. debug("scsi_setup_read6: cmd: %02X %02X startblk %02X%02X blccnt %02X\n",
  119. pccb->cmd[0], pccb->cmd[1],
  120. pccb->cmd[2], pccb->cmd[3], pccb->cmd[4]);
  121. }
  122. void scsi_setup_inquiry(ccb *pccb)
  123. {
  124. pccb->cmd[0] = SCSI_INQUIRY;
  125. pccb->cmd[1] = pccb->lun << 5;
  126. pccb->cmd[2] = 0;
  127. pccb->cmd[3] = 0;
  128. if (pccb->datalen > 255)
  129. pccb->cmd[4] = 255;
  130. else
  131. pccb->cmd[4] = (unsigned char)pccb->datalen;
  132. pccb->cmd[5] = 0;
  133. pccb->cmdlen = 6;
  134. pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
  135. }
  136. #ifdef CONFIG_BLK
  137. static ulong scsi_read(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
  138. void *buffer)
  139. #else
  140. static ulong scsi_read(struct blk_desc *block_dev, lbaint_t blknr,
  141. lbaint_t blkcnt, void *buffer)
  142. #endif
  143. {
  144. #ifdef CONFIG_BLK
  145. struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
  146. #endif
  147. int device = block_dev->devnum;
  148. lbaint_t start, blks;
  149. uintptr_t buf_addr;
  150. unsigned short smallblks = 0;
  151. ccb *pccb = (ccb *)&tempccb;
  152. device &= 0xff;
  153. /* Setup device */
  154. pccb->target = scsi_dev_desc[device].target;
  155. pccb->lun = scsi_dev_desc[device].lun;
  156. buf_addr = (unsigned long)buffer;
  157. start = blknr;
  158. blks = blkcnt;
  159. debug("\nscsi_read: dev %d startblk " LBAF
  160. ", blccnt " LBAF " buffer %lx\n",
  161. device, start, blks, (unsigned long)buffer);
  162. do {
  163. pccb->pdata = (unsigned char *)buf_addr;
  164. #ifdef CONFIG_SYS_64BIT_LBA
  165. if (start > SCSI_LBA48_READ) {
  166. unsigned long blocks;
  167. blocks = min_t(lbaint_t, blks, SCSI_MAX_READ_BLK);
  168. pccb->datalen = scsi_dev_desc[device].blksz * blocks;
  169. scsi_setup_read16(pccb, start, blocks);
  170. start += blocks;
  171. blks -= blocks;
  172. } else
  173. #endif
  174. if (blks > SCSI_MAX_READ_BLK) {
  175. pccb->datalen = scsi_dev_desc[device].blksz *
  176. SCSI_MAX_READ_BLK;
  177. smallblks = SCSI_MAX_READ_BLK;
  178. scsi_setup_read_ext(pccb, start, smallblks);
  179. start += SCSI_MAX_READ_BLK;
  180. blks -= SCSI_MAX_READ_BLK;
  181. } else {
  182. pccb->datalen = scsi_dev_desc[device].blksz * blks;
  183. smallblks = (unsigned short)blks;
  184. scsi_setup_read_ext(pccb, start, smallblks);
  185. start += blks;
  186. blks = 0;
  187. }
  188. debug("scsi_read_ext: startblk " LBAF
  189. ", blccnt %x buffer %" PRIXPTR "\n",
  190. start, smallblks, buf_addr);
  191. if (scsi_exec(pccb) != true) {
  192. scsi_print_error(pccb);
  193. blkcnt -= blks;
  194. break;
  195. }
  196. buf_addr += pccb->datalen;
  197. } while (blks != 0);
  198. debug("scsi_read_ext: end startblk " LBAF
  199. ", blccnt %x buffer %" PRIXPTR "\n", start, smallblks, buf_addr);
  200. return blkcnt;
  201. }
  202. /*******************************************************************************
  203. * scsi_write
  204. */
  205. /* Almost the maximum amount of the scsi_ext command.. */
  206. #define SCSI_MAX_WRITE_BLK 0xFFFF
  207. #ifdef CONFIG_BLK
  208. static ulong scsi_write(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
  209. const void *buffer)
  210. #else
  211. static ulong scsi_write(struct blk_desc *block_dev, lbaint_t blknr,
  212. lbaint_t blkcnt, const void *buffer)
  213. #endif
  214. {
  215. #ifdef CONFIG_BLK
  216. struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
  217. #endif
  218. int device = block_dev->devnum;
  219. lbaint_t start, blks;
  220. uintptr_t buf_addr;
  221. unsigned short smallblks;
  222. ccb *pccb = (ccb *)&tempccb;
  223. device &= 0xff;
  224. /* Setup device */
  225. pccb->target = scsi_dev_desc[device].target;
  226. pccb->lun = scsi_dev_desc[device].lun;
  227. buf_addr = (unsigned long)buffer;
  228. start = blknr;
  229. blks = blkcnt;
  230. debug("\n%s: dev %d startblk " LBAF ", blccnt " LBAF " buffer %lx\n",
  231. __func__, device, start, blks, (unsigned long)buffer);
  232. do {
  233. pccb->pdata = (unsigned char *)buf_addr;
  234. if (blks > SCSI_MAX_WRITE_BLK) {
  235. pccb->datalen = (scsi_dev_desc[device].blksz *
  236. SCSI_MAX_WRITE_BLK);
  237. smallblks = SCSI_MAX_WRITE_BLK;
  238. scsi_setup_write_ext(pccb, start, smallblks);
  239. start += SCSI_MAX_WRITE_BLK;
  240. blks -= SCSI_MAX_WRITE_BLK;
  241. } else {
  242. pccb->datalen = scsi_dev_desc[device].blksz * blks;
  243. smallblks = (unsigned short)blks;
  244. scsi_setup_write_ext(pccb, start, smallblks);
  245. start += blks;
  246. blks = 0;
  247. }
  248. debug("%s: startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n",
  249. __func__, start, smallblks, buf_addr);
  250. if (scsi_exec(pccb) != true) {
  251. scsi_print_error(pccb);
  252. blkcnt -= blks;
  253. break;
  254. }
  255. buf_addr += pccb->datalen;
  256. } while (blks != 0);
  257. debug("%s: end startblk " LBAF ", blccnt %x buffer %" PRIXPTR "\n",
  258. __func__, start, smallblks, buf_addr);
  259. return blkcnt;
  260. }
  261. int scsi_get_disk_count(void)
  262. {
  263. return scsi_max_devs;
  264. }
  265. #if defined(CONFIG_PCI) && !defined(CONFIG_SCSI_AHCI_PLAT)
  266. void scsi_init(void)
  267. {
  268. int busdevfunc = -1;
  269. int i;
  270. /*
  271. * Find a device from the list, this driver will support a single
  272. * controller.
  273. */
  274. for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
  275. /* get PCI Device ID */
  276. #ifdef CONFIG_DM_PCI
  277. struct udevice *dev;
  278. int ret;
  279. ret = dm_pci_find_device(scsi_device_list[i].vendor,
  280. scsi_device_list[i].device, 0, &dev);
  281. if (!ret) {
  282. busdevfunc = dm_pci_get_bdf(dev);
  283. break;
  284. }
  285. #else
  286. busdevfunc = pci_find_device(scsi_device_list[i].vendor,
  287. scsi_device_list[i].device,
  288. 0);
  289. #endif
  290. if (busdevfunc != -1)
  291. break;
  292. }
  293. if (busdevfunc == -1) {
  294. printf("Error: SCSI Controller(s) ");
  295. for (i = 0; i < ARRAY_SIZE(scsi_device_list); i++) {
  296. printf("%04X:%04X ",
  297. scsi_device_list[i].vendor,
  298. scsi_device_list[i].device);
  299. }
  300. printf("not found\n");
  301. return;
  302. }
  303. #ifdef DEBUG
  304. else {
  305. printf("SCSI Controller (%04X,%04X) found (%d:%d:%d)\n",
  306. scsi_device_list[i].vendor,
  307. scsi_device_list[i].device,
  308. (busdevfunc >> 16) & 0xFF,
  309. (busdevfunc >> 11) & 0x1F,
  310. (busdevfunc >> 8) & 0x7);
  311. }
  312. #endif
  313. bootstage_start(BOOTSTAGE_ID_ACCUM_SCSI, "ahci");
  314. scsi_low_level_init(busdevfunc);
  315. scsi_scan(1);
  316. bootstage_accum(BOOTSTAGE_ID_ACCUM_SCSI);
  317. }
  318. #endif
  319. /* copy src to dest, skipping leading and trailing blanks
  320. * and null terminate the string
  321. */
  322. void scsi_ident_cpy(unsigned char *dest, unsigned char *src, unsigned int len)
  323. {
  324. int start, end;
  325. start = 0;
  326. while (start < len) {
  327. if (src[start] != ' ')
  328. break;
  329. start++;
  330. }
  331. end = len-1;
  332. while (end > start) {
  333. if (src[end] != ' ')
  334. break;
  335. end--;
  336. }
  337. for (; start <= end; start++)
  338. *dest ++= src[start];
  339. *dest = '\0';
  340. }
  341. /* Trim trailing blanks, and NUL-terminate string
  342. */
  343. void scsi_trim_trail(unsigned char *str, unsigned int len)
  344. {
  345. unsigned char *p = str + len - 1;
  346. while (len-- > 0) {
  347. *p-- = '\0';
  348. if (*p != ' ')
  349. return;
  350. }
  351. }
  352. int scsi_read_capacity(ccb *pccb, lbaint_t *capacity, unsigned long *blksz)
  353. {
  354. *capacity = 0;
  355. memset(pccb->cmd, '\0', sizeof(pccb->cmd));
  356. pccb->cmd[0] = SCSI_RD_CAPAC10;
  357. pccb->cmd[1] = pccb->lun << 5;
  358. pccb->cmdlen = 10;
  359. pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
  360. pccb->datalen = 8;
  361. if (scsi_exec(pccb) != true)
  362. return 1;
  363. *capacity = ((lbaint_t)pccb->pdata[0] << 24) |
  364. ((lbaint_t)pccb->pdata[1] << 16) |
  365. ((lbaint_t)pccb->pdata[2] << 8) |
  366. ((lbaint_t)pccb->pdata[3]);
  367. if (*capacity != 0xffffffff) {
  368. /* Read capacity (10) was sufficient for this drive. */
  369. *blksz = ((unsigned long)pccb->pdata[4] << 24) |
  370. ((unsigned long)pccb->pdata[5] << 16) |
  371. ((unsigned long)pccb->pdata[6] << 8) |
  372. ((unsigned long)pccb->pdata[7]);
  373. return 0;
  374. }
  375. /* Read capacity (10) was insufficient. Use read capacity (16). */
  376. memset(pccb->cmd, '\0', sizeof(pccb->cmd));
  377. pccb->cmd[0] = SCSI_RD_CAPAC16;
  378. pccb->cmd[1] = 0x10;
  379. pccb->cmdlen = 16;
  380. pccb->msgout[0] = SCSI_IDENTIFY; /* NOT USED */
  381. pccb->datalen = 16;
  382. if (scsi_exec(pccb) != true)
  383. return 1;
  384. *capacity = ((uint64_t)pccb->pdata[0] << 56) |
  385. ((uint64_t)pccb->pdata[1] << 48) |
  386. ((uint64_t)pccb->pdata[2] << 40) |
  387. ((uint64_t)pccb->pdata[3] << 32) |
  388. ((uint64_t)pccb->pdata[4] << 24) |
  389. ((uint64_t)pccb->pdata[5] << 16) |
  390. ((uint64_t)pccb->pdata[6] << 8) |
  391. ((uint64_t)pccb->pdata[7]);
  392. *blksz = ((uint64_t)pccb->pdata[8] << 56) |
  393. ((uint64_t)pccb->pdata[9] << 48) |
  394. ((uint64_t)pccb->pdata[10] << 40) |
  395. ((uint64_t)pccb->pdata[11] << 32) |
  396. ((uint64_t)pccb->pdata[12] << 24) |
  397. ((uint64_t)pccb->pdata[13] << 16) |
  398. ((uint64_t)pccb->pdata[14] << 8) |
  399. ((uint64_t)pccb->pdata[15]);
  400. return 0;
  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. * (re)-scan the scsi bus and reports scsi device info
  418. * to the user if mode = 1
  419. */
  420. void scsi_scan(int mode)
  421. {
  422. unsigned char i, perq, modi, lun;
  423. lbaint_t capacity;
  424. unsigned long blksz;
  425. ccb *pccb = (ccb *)&tempccb;
  426. if (mode == 1)
  427. printf("scanning bus for devices...\n");
  428. for (i = 0; i < CONFIG_SYS_SCSI_MAX_DEVICE; i++) {
  429. scsi_dev_desc[i].target = 0xff;
  430. scsi_dev_desc[i].lun = 0xff;
  431. scsi_dev_desc[i].lba = 0;
  432. scsi_dev_desc[i].blksz = 0;
  433. scsi_dev_desc[i].log2blksz =
  434. LOG2_INVALID(typeof(scsi_dev_desc[i].log2blksz));
  435. scsi_dev_desc[i].type = DEV_TYPE_UNKNOWN;
  436. scsi_dev_desc[i].vendor[0] = 0;
  437. scsi_dev_desc[i].product[0] = 0;
  438. scsi_dev_desc[i].revision[0] = 0;
  439. scsi_dev_desc[i].removable = false;
  440. scsi_dev_desc[i].if_type = IF_TYPE_SCSI;
  441. scsi_dev_desc[i].devnum = i;
  442. scsi_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
  443. #ifndef CONFIG_BLK
  444. scsi_dev_desc[i].block_read = scsi_read;
  445. scsi_dev_desc[i].block_write = scsi_write;
  446. #endif
  447. }
  448. scsi_max_devs = 0;
  449. for (i = 0; i < CONFIG_SYS_SCSI_MAX_SCSI_ID; i++) {
  450. pccb->target = i;
  451. for (lun = 0; lun < CONFIG_SYS_SCSI_MAX_LUN; lun++) {
  452. pccb->lun = lun;
  453. pccb->pdata = (unsigned char *)&tempbuff;
  454. pccb->datalen = 512;
  455. scsi_setup_inquiry(pccb);
  456. if (scsi_exec(pccb) != true) {
  457. if (pccb->contr_stat == SCSI_SEL_TIME_OUT) {
  458. /*
  459. * selection timeout => assuming no
  460. * device present
  461. */
  462. debug("Selection timeout ID %d\n",
  463. pccb->target);
  464. continue;
  465. }
  466. scsi_print_error(pccb);
  467. continue;
  468. }
  469. perq = tempbuff[0];
  470. modi = tempbuff[1];
  471. if ((perq & 0x1f) == 0x1f)
  472. continue; /* skip unknown devices */
  473. if ((modi & 0x80) == 0x80) /* drive is removable */
  474. scsi_dev_desc[scsi_max_devs].removable = true;
  475. /* get info for this device */
  476. scsi_ident_cpy((unsigned char *)&scsi_dev_desc
  477. [scsi_max_devs].vendor[0],
  478. &tempbuff[8], 8);
  479. scsi_ident_cpy((unsigned char *)&scsi_dev_desc
  480. [scsi_max_devs].product[0],
  481. &tempbuff[16], 16);
  482. scsi_ident_cpy((unsigned char *)&scsi_dev_desc
  483. [scsi_max_devs].revision[0],
  484. &tempbuff[32], 4);
  485. scsi_dev_desc[scsi_max_devs].target = pccb->target;
  486. scsi_dev_desc[scsi_max_devs].lun = pccb->lun;
  487. pccb->datalen = 0;
  488. scsi_setup_test_unit_ready(pccb);
  489. if (scsi_exec(pccb) != true) {
  490. if (scsi_dev_desc[scsi_max_devs].removable) {
  491. scsi_dev_desc[scsi_max_devs].type =
  492. perq;
  493. goto removable;
  494. }
  495. scsi_print_error(pccb);
  496. continue;
  497. }
  498. if (scsi_read_capacity(pccb, &capacity, &blksz)) {
  499. scsi_print_error(pccb);
  500. continue;
  501. }
  502. scsi_dev_desc[scsi_max_devs].lba = capacity;
  503. scsi_dev_desc[scsi_max_devs].blksz = blksz;
  504. scsi_dev_desc[scsi_max_devs].log2blksz =
  505. LOG2(scsi_dev_desc[scsi_max_devs].blksz);
  506. scsi_dev_desc[scsi_max_devs].type = perq;
  507. part_init(&scsi_dev_desc[scsi_max_devs]);
  508. removable:
  509. if (mode == 1) {
  510. printf(" Device %d: ", scsi_max_devs);
  511. dev_print(&scsi_dev_desc[scsi_max_devs]);
  512. } /* if mode */
  513. scsi_max_devs++;
  514. } /* next LUN */
  515. }
  516. if (scsi_max_devs > 0)
  517. scsi_curr_dev = 0;
  518. else
  519. scsi_curr_dev = -1;
  520. printf("Found %d device(s).\n", scsi_max_devs);
  521. #ifndef CONFIG_SPL_BUILD
  522. setenv_ulong("scsidevs", scsi_max_devs);
  523. #endif
  524. }
  525. #ifdef CONFIG_BLK
  526. static const struct blk_ops scsi_blk_ops = {
  527. .read = scsi_read,
  528. .write = scsi_write,
  529. };
  530. U_BOOT_DRIVER(scsi_blk) = {
  531. .name = "scsi_blk",
  532. .id = UCLASS_BLK,
  533. .ops = &scsi_blk_ops,
  534. };
  535. #else
  536. U_BOOT_LEGACY_BLK(scsi) = {
  537. .if_typename = "scsi",
  538. .if_type = IF_TYPE_SCSI,
  539. .max_devs = CONFIG_SYS_SCSI_MAX_DEVICE,
  540. .desc = scsi_dev_desc,
  541. };
  542. #endif