imx8mimage.c 15 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright 2018 NXP
  4. *
  5. * Peng Fan <peng.fan@nxp.com>
  6. */
  7. #include "imagetool.h"
  8. #include <image.h>
  9. #include "imximage.h"
  10. #include "compiler.h"
  11. static uint32_t ap_start_addr, sld_start_addr, sld_src_off;
  12. static char *ap_img, *sld_img, *signed_hdmi;
  13. static imx_header_v3_t imx_header[2]; /* At most there are 3 IVT headers */
  14. static uint32_t rom_image_offset;
  15. static uint32_t sector_size = 0x200;
  16. static uint32_t image_off;
  17. static uint32_t sld_header_off;
  18. static uint32_t ivt_offset;
  19. static uint32_t using_fit;
  20. #define ROM_V1 1
  21. #define ROM_V2 2
  22. static uint32_t rom_version = ROM_V1;
  23. #define CSF_SIZE 0x2000
  24. #define HDMI_IVT_ID 0
  25. #define IMAGE_IVT_ID 1
  26. #define HDMI_FW_SIZE 0x17000 /* Use Last 0x1000 for IVT and CSF */
  27. #define ALIGN_SIZE 0x1000
  28. static uint32_t get_cfg_value(char *token, char *name, int linenr)
  29. {
  30. char *endptr;
  31. uint32_t value;
  32. errno = 0;
  33. value = strtoul(token, &endptr, 16);
  34. if (errno || token == endptr) {
  35. fprintf(stderr, "Error: %s[%d] - Invalid hex data(%s)\n",
  36. name, linenr, token);
  37. exit(EXIT_FAILURE);
  38. }
  39. return value;
  40. }
  41. int imx8mimage_check_params(struct image_tool_params *params)
  42. {
  43. return 0;
  44. }
  45. static void imx8mimage_set_header(void *ptr, struct stat *sbuf, int ifd,
  46. struct image_tool_params *params)
  47. {
  48. }
  49. static void imx8mimage_print_header(const void *ptr)
  50. {
  51. }
  52. static int imx8mimage_check_image_types(uint8_t type)
  53. {
  54. return (type == IH_TYPE_IMX8MIMAGE) ? EXIT_SUCCESS : EXIT_FAILURE;
  55. }
  56. static table_entry_t imx8mimage_cmds[] = {
  57. {CMD_BOOT_FROM, "BOOT_FROM", "boot command", },
  58. {CMD_FIT, "FIT", "fit image", },
  59. {CMD_SIGNED_HDMI, "SIGNED_HDMI", "signed hdmi image", },
  60. {CMD_LOADER, "LOADER", "loader image", },
  61. {CMD_SECOND_LOADER, "SECOND_LOADER", "2nd loader image", },
  62. {CMD_DDR_FW, "DDR_FW", "ddr firmware", },
  63. {CMD_ROM_VERSION, "ROM_VERSION", "rom version", },
  64. {-1, "", "", },
  65. };
  66. static table_entry_t imx8mimage_ivt_offset[] = {
  67. {0x400, "sd", "sd/emmc",},
  68. {0x400, "emmc_fastboot", "emmc fastboot",},
  69. {0x1000, "fspi", "flexspi", },
  70. {-1, "", "Invalid", },
  71. };
  72. static void parse_cfg_cmd(int32_t cmd, char *token, char *name, int lineno)
  73. {
  74. switch (cmd) {
  75. case CMD_BOOT_FROM:
  76. ivt_offset = get_table_entry_id(imx8mimage_ivt_offset,
  77. "imx8mimage ivt offset",
  78. token);
  79. if (!strncmp(token, "sd", 2))
  80. rom_image_offset = 0x8000;
  81. if (rom_version == ROM_V2)
  82. ivt_offset = 0;
  83. break;
  84. case CMD_LOADER:
  85. ap_img = token;
  86. break;
  87. case CMD_SECOND_LOADER:
  88. sld_img = token;
  89. break;
  90. case CMD_SIGNED_HDMI:
  91. signed_hdmi = token;
  92. break;
  93. case CMD_DDR_FW:
  94. /* Do nothing */
  95. break;
  96. case CMD_ROM_VERSION:
  97. if (!strncmp(token, "v2", 2)) {
  98. rom_version = ROM_V2;
  99. ivt_offset = 0;
  100. } else if (!strncmp(token, "v1", 2)) {
  101. rom_version = ROM_V1;
  102. }
  103. break;
  104. }
  105. }
  106. static void parse_cfg_fld(int32_t *cmd, char *token,
  107. char *name, int lineno, int fld)
  108. {
  109. switch (fld) {
  110. case CFG_COMMAND:
  111. *cmd = get_table_entry_id(imx8mimage_cmds,
  112. "imx8mimage commands", token);
  113. if (*cmd < 0) {
  114. fprintf(stderr, "Error: %s[%d] - Invalid command" "(%s)\n",
  115. name, lineno, token);
  116. exit(EXIT_FAILURE);
  117. }
  118. switch (*cmd) {
  119. case CMD_FIT:
  120. using_fit = 1;
  121. break;
  122. }
  123. break;
  124. case CFG_REG_SIZE:
  125. parse_cfg_cmd(*cmd, token, name, lineno);
  126. break;
  127. case CFG_REG_ADDRESS:
  128. switch (*cmd) {
  129. case CMD_LOADER:
  130. ap_start_addr = get_cfg_value(token, name, lineno);
  131. break;
  132. case CMD_SECOND_LOADER:
  133. sld_start_addr = get_cfg_value(token, name, lineno);
  134. break;
  135. }
  136. break;
  137. case CFG_REG_VALUE:
  138. switch (*cmd) {
  139. case CMD_SECOND_LOADER:
  140. sld_src_off = get_cfg_value(token, name, lineno);
  141. break;
  142. }
  143. default:
  144. break;
  145. }
  146. }
  147. static uint32_t parse_cfg_file(char *name)
  148. {
  149. FILE *fd = NULL;
  150. char *line = NULL;
  151. char *token, *saveptr1, *saveptr2;
  152. int lineno = 0;
  153. int fld;
  154. size_t len;
  155. int32_t cmd;
  156. fd = fopen(name, "r");
  157. if (fd == 0) {
  158. fprintf(stderr, "Error: %s - Can't open cfg file\n", name);
  159. exit(EXIT_FAILURE);
  160. }
  161. /*
  162. * Very simple parsing, line starting with # are comments
  163. * and are dropped
  164. */
  165. while ((getline(&line, &len, fd)) > 0) {
  166. lineno++;
  167. token = strtok_r(line, "\r\n", &saveptr1);
  168. if (!token)
  169. continue;
  170. /* Check inside the single line */
  171. for (fld = CFG_COMMAND, cmd = CFG_INVALID,
  172. line = token; ; line = NULL, fld++) {
  173. token = strtok_r(line, " \t", &saveptr2);
  174. if (!token)
  175. break;
  176. /* Drop all text starting with '#' as comments */
  177. if (token[0] == '#')
  178. break;
  179. parse_cfg_fld(&cmd, token, name, lineno, fld);
  180. }
  181. }
  182. return 0;
  183. }
  184. static void fill_zero(int ifd, int size, int offset)
  185. {
  186. int fill_size;
  187. uint8_t zeros[4096];
  188. int ret;
  189. memset(zeros, 0, sizeof(zeros));
  190. ret = lseek(ifd, offset, SEEK_SET);
  191. if (ret < 0) {
  192. fprintf(stderr, "%s seek: %s\n", __func__, strerror(errno));
  193. exit(EXIT_FAILURE);
  194. }
  195. while (size) {
  196. if (size > 4096)
  197. fill_size = 4096;
  198. else
  199. fill_size = size;
  200. if (write(ifd, (char *)&zeros, fill_size) != fill_size) {
  201. fprintf(stderr, "Write error: %s\n",
  202. strerror(errno));
  203. exit(EXIT_FAILURE);
  204. }
  205. size -= fill_size;
  206. };
  207. }
  208. static void copy_file(int ifd, const char *datafile, int pad, int offset,
  209. int datafile_offset)
  210. {
  211. int dfd;
  212. struct stat sbuf;
  213. unsigned char *ptr;
  214. int tail;
  215. int zero = 0;
  216. uint8_t zeros[4096];
  217. int size, ret;
  218. memset(zeros, 0, sizeof(zeros));
  219. dfd = open(datafile, O_RDONLY | O_BINARY);
  220. if (dfd < 0) {
  221. fprintf(stderr, "Can't open %s: %s\n",
  222. datafile, strerror(errno));
  223. exit(EXIT_FAILURE);
  224. }
  225. if (fstat(dfd, &sbuf) < 0) {
  226. fprintf(stderr, "Can't stat %s: %s\n",
  227. datafile, strerror(errno));
  228. exit(EXIT_FAILURE);
  229. }
  230. ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
  231. if (ptr == MAP_FAILED) {
  232. fprintf(stderr, "Can't read %s: %s\n",
  233. datafile, strerror(errno));
  234. exit(EXIT_FAILURE);
  235. }
  236. size = sbuf.st_size - datafile_offset;
  237. ret = lseek(ifd, offset, SEEK_SET);
  238. if (ret < 0) {
  239. fprintf(stderr, "lseek ifd fail\n");
  240. exit(EXIT_FAILURE);
  241. }
  242. if (write(ifd, ptr + datafile_offset, size) != size) {
  243. fprintf(stderr, "Write error %s\n",
  244. strerror(errno));
  245. exit(EXIT_FAILURE);
  246. }
  247. tail = size % 4;
  248. pad = pad - size;
  249. if (pad == 1 && tail != 0) {
  250. if (write(ifd, (char *)&zero, 4 - tail) != 4 - tail) {
  251. fprintf(stderr, "Write error on %s\n",
  252. strerror(errno));
  253. exit(EXIT_FAILURE);
  254. }
  255. } else if (pad > 1) {
  256. while (pad > 0) {
  257. int todo = sizeof(zeros);
  258. if (todo > pad)
  259. todo = pad;
  260. if (write(ifd, (char *)&zeros, todo) != todo) {
  261. fprintf(stderr, "Write error: %s\n",
  262. strerror(errno));
  263. exit(EXIT_FAILURE);
  264. }
  265. pad -= todo;
  266. }
  267. }
  268. munmap((void *)ptr, sbuf.st_size);
  269. close(dfd);
  270. }
  271. /* Return this IVT offset in the final output file */
  272. static int generate_ivt_for_fit(int fd, int fit_offset, uint32_t ep,
  273. uint32_t *fit_load_addr)
  274. {
  275. image_header_t image_header;
  276. int ret;
  277. uint32_t fit_size, load_addr;
  278. int align_len = 64 - 1; /* 64 is cacheline size */
  279. ret = lseek(fd, fit_offset, SEEK_SET);
  280. if (ret < 0) {
  281. fprintf(stderr, "lseek fd fail for fit\n");
  282. exit(EXIT_FAILURE);
  283. }
  284. if (read(fd, (char *)&image_header, sizeof(image_header_t)) !=
  285. sizeof(image_header_t)) {
  286. fprintf(stderr, "generate_ivt_for_fit read failed: %s\n",
  287. strerror(errno));
  288. exit(EXIT_FAILURE);
  289. }
  290. if (be32_to_cpu(image_header.ih_magic) != FDT_MAGIC) {
  291. fprintf(stderr, "%s error: not a FIT file\n", __func__);
  292. exit(EXIT_FAILURE);
  293. }
  294. fit_size = fdt_totalsize(&image_header);
  295. fit_size = ALIGN(fit_size, ALIGN_SIZE);
  296. ret = lseek(fd, fit_offset + fit_size, SEEK_SET);
  297. if (ret < 0) {
  298. fprintf(stderr, "lseek fd fail for fit\n");
  299. exit(EXIT_FAILURE);
  300. }
  301. /*
  302. * ep is the u-boot entry. SPL loads the FIT before the u-boot
  303. * address. 0x2000 is for CSF_SIZE
  304. */
  305. load_addr = (ep - (fit_size + CSF_SIZE) - 512 - align_len) &
  306. ~align_len;
  307. flash_header_v2_t ivt_header = { { 0xd1, 0x2000, 0x40 },
  308. load_addr, 0, 0, 0,
  309. (load_addr + fit_size),
  310. (load_addr + fit_size + 0x20),
  311. 0 };
  312. if (write(fd, &ivt_header, sizeof(flash_header_v2_t)) !=
  313. sizeof(flash_header_v2_t)) {
  314. fprintf(stderr, "IVT writing error on fit image\n");
  315. exit(EXIT_FAILURE);
  316. }
  317. *fit_load_addr = load_addr;
  318. return fit_offset + fit_size;
  319. }
  320. static void dump_header_v2(imx_header_v3_t *imx_header, int index)
  321. {
  322. const char *ivt_name[2] = {"HDMI FW", "LOADER IMAGE"};
  323. fprintf(stdout, "========= IVT HEADER [%s] =========\n",
  324. ivt_name[index]);
  325. fprintf(stdout, "header.tag: \t\t0x%x\n",
  326. imx_header[index].fhdr.header.tag);
  327. fprintf(stdout, "header.length: \t\t0x%x\n",
  328. imx_header[index].fhdr.header.length);
  329. fprintf(stdout, "header.version: \t0x%x\n",
  330. imx_header[index].fhdr.header.version);
  331. fprintf(stdout, "entry: \t\t\t0x%x\n",
  332. imx_header[index].fhdr.entry);
  333. fprintf(stdout, "reserved1: \t\t0x%x\n",
  334. imx_header[index].fhdr.reserved1);
  335. fprintf(stdout, "dcd_ptr: \t\t0x%x\n",
  336. imx_header[index].fhdr.dcd_ptr);
  337. fprintf(stdout, "boot_data_ptr: \t\t0x%x\n",
  338. imx_header[index].fhdr.boot_data_ptr);
  339. fprintf(stdout, "self: \t\t\t0x%x\n",
  340. imx_header[index].fhdr.self);
  341. fprintf(stdout, "csf: \t\t\t0x%x\n",
  342. imx_header[index].fhdr.csf);
  343. fprintf(stdout, "reserved2: \t\t0x%x\n",
  344. imx_header[index].fhdr.reserved2);
  345. fprintf(stdout, "boot_data.start: \t0x%x\n",
  346. imx_header[index].boot_data.start);
  347. fprintf(stdout, "boot_data.size: \t0x%x\n",
  348. imx_header[index].boot_data.size);
  349. fprintf(stdout, "boot_data.plugin: \t0x%x\n",
  350. imx_header[index].boot_data.plugin);
  351. }
  352. void build_image(int ofd)
  353. {
  354. int file_off, header_hdmi_off = 0, header_image_off;
  355. int hdmi_fd, ap_fd, sld_fd;
  356. uint32_t sld_load_addr = 0;
  357. uint32_t csf_off, sld_csf_off = 0;
  358. int ret;
  359. struct stat sbuf;
  360. if (!ap_img) {
  361. fprintf(stderr, "No LOADER image specificed\n");
  362. exit(EXIT_FAILURE);
  363. }
  364. file_off = 0;
  365. if (signed_hdmi) {
  366. header_hdmi_off = file_off + ivt_offset;
  367. hdmi_fd = open(signed_hdmi, O_RDONLY | O_BINARY);
  368. if (hdmi_fd < 0) {
  369. fprintf(stderr, "%s: Can't open: %s\n",
  370. signed_hdmi, strerror(errno));
  371. exit(EXIT_FAILURE);
  372. }
  373. if (fstat(hdmi_fd, &sbuf) < 0) {
  374. fprintf(stderr, "%s: Can't stat: %s\n",
  375. signed_hdmi, strerror(errno));
  376. exit(EXIT_FAILURE);
  377. }
  378. close(hdmi_fd);
  379. /*
  380. * Aligned to 104KB = 92KB FW image + 0x8000
  381. * (IVT and alignment) + 0x4000 (second IVT + CSF)
  382. */
  383. file_off += ALIGN(sbuf.st_size,
  384. HDMI_FW_SIZE + 0x2000 + 0x1000);
  385. }
  386. header_image_off = file_off + ivt_offset;
  387. ap_fd = open(ap_img, O_RDONLY | O_BINARY);
  388. if (ap_fd < 0) {
  389. fprintf(stderr, "%s: Can't open: %s\n",
  390. ap_img, strerror(errno));
  391. exit(EXIT_FAILURE);
  392. }
  393. if (fstat(ap_fd, &sbuf) < 0) {
  394. fprintf(stderr, "%s: Can't stat: %s\n",
  395. ap_img, strerror(errno));
  396. exit(EXIT_FAILURE);
  397. }
  398. close(ap_fd);
  399. imx_header[IMAGE_IVT_ID].fhdr.header.tag = IVT_HEADER_TAG; /* 0xD1 */
  400. imx_header[IMAGE_IVT_ID].fhdr.header.length =
  401. cpu_to_be16(sizeof(flash_header_v2_t));
  402. imx_header[IMAGE_IVT_ID].fhdr.header.version = IVT_VERSION_V3; /* 0x41 */
  403. imx_header[IMAGE_IVT_ID].fhdr.entry = ap_start_addr;
  404. imx_header[IMAGE_IVT_ID].fhdr.self = ap_start_addr -
  405. sizeof(imx_header_v3_t);
  406. imx_header[IMAGE_IVT_ID].fhdr.dcd_ptr = 0;
  407. imx_header[IMAGE_IVT_ID].fhdr.boot_data_ptr =
  408. imx_header[IMAGE_IVT_ID].fhdr.self +
  409. offsetof(imx_header_v3_t, boot_data);
  410. imx_header[IMAGE_IVT_ID].boot_data.start =
  411. imx_header[IMAGE_IVT_ID].fhdr.self - ivt_offset;
  412. imx_header[IMAGE_IVT_ID].boot_data.size =
  413. ALIGN(sbuf.st_size + sizeof(imx_header_v3_t) + ivt_offset,
  414. sector_size);
  415. image_off = header_image_off + sizeof(imx_header_v3_t);
  416. file_off += imx_header[IMAGE_IVT_ID].boot_data.size;
  417. imx_header[IMAGE_IVT_ID].boot_data.plugin = 0;
  418. imx_header[IMAGE_IVT_ID].fhdr.csf =
  419. imx_header[IMAGE_IVT_ID].boot_data.start +
  420. imx_header[IMAGE_IVT_ID].boot_data.size;
  421. imx_header[IMAGE_IVT_ID].boot_data.size += CSF_SIZE; /* 8K region dummy CSF */
  422. csf_off = file_off;
  423. file_off += CSF_SIZE;
  424. /* Second boot loader image */
  425. if (sld_img) {
  426. if (!using_fit) {
  427. fprintf(stderr, "Not support no fit\n");
  428. exit(EXIT_FAILURE);
  429. } else {
  430. sld_header_off = sld_src_off - rom_image_offset;
  431. /*
  432. * Record the second bootloader relative offset in
  433. * image's IVT reserved1
  434. */
  435. if (rom_version == ROM_V1) {
  436. imx_header[IMAGE_IVT_ID].fhdr.reserved1 =
  437. sld_header_off - header_image_off;
  438. }
  439. sld_fd = open(sld_img, O_RDONLY | O_BINARY);
  440. if (sld_fd < 0) {
  441. fprintf(stderr, "%s: Can't open: %s\n",
  442. sld_img, strerror(errno));
  443. exit(EXIT_FAILURE);
  444. }
  445. if (fstat(sld_fd, &sbuf) < 0) {
  446. fprintf(stderr, "%s: Can't stat: %s\n",
  447. sld_img, strerror(errno));
  448. exit(EXIT_FAILURE);
  449. }
  450. close(sld_fd);
  451. file_off = sld_header_off;
  452. file_off += sbuf.st_size + sizeof(image_header_t);
  453. }
  454. }
  455. if (signed_hdmi) {
  456. header_hdmi_off -= ivt_offset;
  457. ret = lseek(ofd, header_hdmi_off, SEEK_SET);
  458. if (ret < 0) {
  459. fprintf(stderr, "lseek ofd fail for hdmi\n");
  460. exit(EXIT_FAILURE);
  461. }
  462. /* The signed HDMI FW has 0x400 IVT offset, need remove it */
  463. copy_file(ofd, signed_hdmi, 0, header_hdmi_off, 0x400);
  464. }
  465. /* Main Image */
  466. header_image_off -= ivt_offset;
  467. image_off -= ivt_offset;
  468. ret = lseek(ofd, header_image_off, SEEK_SET);
  469. if (ret < 0) {
  470. fprintf(stderr, "lseek ofd fail\n");
  471. exit(EXIT_FAILURE);
  472. }
  473. /* Write image header */
  474. if (write(ofd, &imx_header[IMAGE_IVT_ID], sizeof(imx_header_v3_t)) !=
  475. sizeof(imx_header_v3_t)) {
  476. fprintf(stderr, "error writing image hdr\n");
  477. exit(1);
  478. }
  479. copy_file(ofd, ap_img, 0, image_off, 0);
  480. csf_off -= ivt_offset;
  481. fill_zero(ofd, CSF_SIZE, csf_off);
  482. if (sld_img) {
  483. sld_header_off -= ivt_offset;
  484. ret = lseek(ofd, sld_header_off, SEEK_SET);
  485. if (ret < 0) {
  486. fprintf(stderr, "lseek ofd fail for sld_img\n");
  487. exit(EXIT_FAILURE);
  488. }
  489. /* Write image header */
  490. if (!using_fit) {
  491. /* TODO */
  492. } else {
  493. copy_file(ofd, sld_img, 0, sld_header_off, 0);
  494. sld_csf_off =
  495. generate_ivt_for_fit(ofd, sld_header_off,
  496. sld_start_addr,
  497. &sld_load_addr) + 0x20;
  498. }
  499. }
  500. if (!signed_hdmi)
  501. dump_header_v2(imx_header, 0);
  502. dump_header_v2(imx_header, 1);
  503. fprintf(stdout, "========= OFFSET dump =========");
  504. if (signed_hdmi) {
  505. fprintf(stdout, "\nSIGNED HDMI FW:\n");
  506. fprintf(stdout, " header_hdmi_off \t0x%x\n",
  507. header_hdmi_off);
  508. }
  509. fprintf(stdout, "\nLoader IMAGE:\n");
  510. fprintf(stdout, " header_image_off \t0x%x\n image_off \t\t0x%x\n csf_off \t\t0x%x\n",
  511. header_image_off, image_off, csf_off);
  512. fprintf(stdout, " spl hab block: \t0x%x 0x%x 0x%x\n",
  513. imx_header[IMAGE_IVT_ID].fhdr.self, header_image_off,
  514. csf_off - header_image_off);
  515. fprintf(stdout, "\nSecond Loader IMAGE:\n");
  516. fprintf(stdout, " sld_header_off \t0x%x\n",
  517. sld_header_off);
  518. fprintf(stdout, " sld_csf_off \t\t0x%x\n",
  519. sld_csf_off);
  520. fprintf(stdout, " sld hab block: \t0x%x 0x%x 0x%x\n",
  521. sld_load_addr, sld_header_off, sld_csf_off - sld_header_off);
  522. }
  523. int imx8mimage_copy_image(int outfd, struct image_tool_params *mparams)
  524. {
  525. /*
  526. * SECO FW is a container image, this is to calculate the
  527. * 2nd container offset.
  528. */
  529. fprintf(stdout, "parsing %s\n", mparams->imagename);
  530. parse_cfg_file(mparams->imagename);
  531. build_image(outfd);
  532. return 0;
  533. }
  534. /*
  535. * imx8mimage parameters
  536. */
  537. U_BOOT_IMAGE_TYPE(
  538. imx8mimage,
  539. "NXP i.MX8M Boot Image support",
  540. 0,
  541. NULL,
  542. imx8mimage_check_params,
  543. NULL,
  544. imx8mimage_print_header,
  545. imx8mimage_set_header,
  546. NULL,
  547. imx8mimage_check_image_types,
  548. NULL,
  549. NULL
  550. );