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. #define ALIGN_IMX(x, a) __ALIGN_MASK_IMX((x), (__typeof__(x))(a) - 1, a)
  29. #define __ALIGN_MASK_IMX(x, mask, mask2) (((x) + (mask)) / (mask2) * (mask2))
  30. static uint32_t get_cfg_value(char *token, char *name, int linenr)
  31. {
  32. char *endptr;
  33. uint32_t value;
  34. errno = 0;
  35. value = strtoul(token, &endptr, 16);
  36. if (errno || token == endptr) {
  37. fprintf(stderr, "Error: %s[%d] - Invalid hex data(%s)\n",
  38. name, linenr, token);
  39. exit(EXIT_FAILURE);
  40. }
  41. return value;
  42. }
  43. int imx8mimage_check_params(struct image_tool_params *params)
  44. {
  45. return 0;
  46. }
  47. static void imx8mimage_set_header(void *ptr, struct stat *sbuf, int ifd,
  48. struct image_tool_params *params)
  49. {
  50. }
  51. static void imx8mimage_print_header(const void *ptr)
  52. {
  53. }
  54. static int imx8mimage_check_image_types(uint8_t type)
  55. {
  56. return (type == IH_TYPE_IMX8MIMAGE) ? EXIT_SUCCESS : EXIT_FAILURE;
  57. }
  58. static table_entry_t imx8mimage_cmds[] = {
  59. {CMD_BOOT_FROM, "BOOT_FROM", "boot command", },
  60. {CMD_FIT, "FIT", "fit image", },
  61. {CMD_SIGNED_HDMI, "SIGNED_HDMI", "signed hdmi image", },
  62. {CMD_LOADER, "LOADER", "loader image", },
  63. {CMD_SECOND_LOADER, "SECOND_LOADER", "2nd loader image", },
  64. {CMD_DDR_FW, "DDR_FW", "ddr firmware", },
  65. {CMD_ROM_VERSION, "ROM_VERSION", "rom version", },
  66. {-1, "", "", },
  67. };
  68. static table_entry_t imx8mimage_ivt_offset[] = {
  69. {0x400, "sd", "sd/emmc",},
  70. {0x400, "emmc_fastboot", "emmc fastboot",},
  71. {0x1000, "fspi", "flexspi", },
  72. {-1, "", "Invalid", },
  73. };
  74. static void parse_cfg_cmd(int32_t cmd, char *token, char *name, int lineno)
  75. {
  76. switch (cmd) {
  77. case CMD_BOOT_FROM:
  78. ivt_offset = get_table_entry_id(imx8mimage_ivt_offset,
  79. "imx8mimage ivt offset",
  80. token);
  81. if (!strncmp(token, "sd", 2))
  82. rom_image_offset = 0x8000;
  83. if (rom_version == ROM_V2)
  84. ivt_offset = 0;
  85. break;
  86. case CMD_LOADER:
  87. ap_img = token;
  88. break;
  89. case CMD_SECOND_LOADER:
  90. sld_img = token;
  91. break;
  92. case CMD_SIGNED_HDMI:
  93. signed_hdmi = token;
  94. break;
  95. case CMD_DDR_FW:
  96. /* Do nothing */
  97. break;
  98. case CMD_ROM_VERSION:
  99. if (!strncmp(token, "v2", 2)) {
  100. rom_version = ROM_V2;
  101. ivt_offset = 0;
  102. } else if (!strncmp(token, "v1", 2)) {
  103. rom_version = ROM_V1;
  104. }
  105. break;
  106. }
  107. }
  108. static void parse_cfg_fld(int32_t *cmd, char *token,
  109. char *name, int lineno, int fld)
  110. {
  111. switch (fld) {
  112. case CFG_COMMAND:
  113. *cmd = get_table_entry_id(imx8mimage_cmds,
  114. "imx8mimage commands", token);
  115. if (*cmd < 0) {
  116. fprintf(stderr, "Error: %s[%d] - Invalid command" "(%s)\n",
  117. name, lineno, token);
  118. exit(EXIT_FAILURE);
  119. }
  120. switch (*cmd) {
  121. case CMD_FIT:
  122. using_fit = 1;
  123. break;
  124. }
  125. break;
  126. case CFG_REG_SIZE:
  127. parse_cfg_cmd(*cmd, token, name, lineno);
  128. break;
  129. case CFG_REG_ADDRESS:
  130. switch (*cmd) {
  131. case CMD_LOADER:
  132. ap_start_addr = get_cfg_value(token, name, lineno);
  133. break;
  134. case CMD_SECOND_LOADER:
  135. sld_start_addr = get_cfg_value(token, name, lineno);
  136. break;
  137. }
  138. break;
  139. case CFG_REG_VALUE:
  140. switch (*cmd) {
  141. case CMD_SECOND_LOADER:
  142. sld_src_off = get_cfg_value(token, name, lineno);
  143. break;
  144. }
  145. default:
  146. break;
  147. }
  148. }
  149. static uint32_t parse_cfg_file(char *name)
  150. {
  151. FILE *fd = NULL;
  152. char *line = NULL;
  153. char *token, *saveptr1, *saveptr2;
  154. int lineno = 0;
  155. int fld;
  156. size_t len;
  157. int32_t cmd;
  158. fd = fopen(name, "r");
  159. if (fd == 0) {
  160. fprintf(stderr, "Error: %s - Can't open cfg file\n", name);
  161. exit(EXIT_FAILURE);
  162. }
  163. /*
  164. * Very simple parsing, line starting with # are comments
  165. * and are dropped
  166. */
  167. while ((getline(&line, &len, fd)) > 0) {
  168. lineno++;
  169. token = strtok_r(line, "\r\n", &saveptr1);
  170. if (!token)
  171. continue;
  172. /* Check inside the single line */
  173. for (fld = CFG_COMMAND, cmd = CFG_INVALID,
  174. line = token; ; line = NULL, fld++) {
  175. token = strtok_r(line, " \t", &saveptr2);
  176. if (!token)
  177. break;
  178. /* Drop all text starting with '#' as comments */
  179. if (token[0] == '#')
  180. break;
  181. parse_cfg_fld(&cmd, token, name, lineno, fld);
  182. }
  183. }
  184. return 0;
  185. }
  186. static void fill_zero(int ifd, int size, int offset)
  187. {
  188. int fill_size;
  189. uint8_t zeros[4096];
  190. int ret;
  191. memset(zeros, 0, sizeof(zeros));
  192. ret = lseek(ifd, offset, SEEK_SET);
  193. if (ret < 0) {
  194. fprintf(stderr, "%s seek: %s\n", __func__, strerror(errno));
  195. exit(EXIT_FAILURE);
  196. }
  197. while (size) {
  198. if (size > 4096)
  199. fill_size = 4096;
  200. else
  201. fill_size = size;
  202. if (write(ifd, (char *)&zeros, fill_size) != fill_size) {
  203. fprintf(stderr, "Write error: %s\n",
  204. strerror(errno));
  205. exit(EXIT_FAILURE);
  206. }
  207. size -= fill_size;
  208. };
  209. }
  210. static void copy_file(int ifd, const char *datafile, int pad, int offset,
  211. int datafile_offset)
  212. {
  213. int dfd;
  214. struct stat sbuf;
  215. unsigned char *ptr;
  216. int tail;
  217. uint64_t zero = 0;
  218. uint8_t zeros[4096];
  219. int size, ret;
  220. memset(zeros, 0, sizeof(zeros));
  221. dfd = open(datafile, O_RDONLY | O_BINARY);
  222. if (dfd < 0) {
  223. fprintf(stderr, "Can't open %s: %s\n",
  224. datafile, strerror(errno));
  225. exit(EXIT_FAILURE);
  226. }
  227. if (fstat(dfd, &sbuf) < 0) {
  228. fprintf(stderr, "Can't stat %s: %s\n",
  229. datafile, strerror(errno));
  230. exit(EXIT_FAILURE);
  231. }
  232. ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
  233. if (ptr == MAP_FAILED) {
  234. fprintf(stderr, "Can't read %s: %s\n",
  235. datafile, strerror(errno));
  236. exit(EXIT_FAILURE);
  237. }
  238. size = sbuf.st_size - datafile_offset;
  239. ret = lseek(ifd, offset, SEEK_SET);
  240. if (ret < 0) {
  241. fprintf(stderr, "lseek ifd fail\n");
  242. exit(EXIT_FAILURE);
  243. }
  244. if (write(ifd, ptr + datafile_offset, size) != size) {
  245. fprintf(stderr, "Write error %s\n",
  246. strerror(errno));
  247. exit(EXIT_FAILURE);
  248. }
  249. tail = size % 4;
  250. pad = pad - size;
  251. if (pad == 1 && tail != 0) {
  252. if (write(ifd, (char *)&zero, 4 - tail) != 4 - tail) {
  253. fprintf(stderr, "Write error on %s\n",
  254. strerror(errno));
  255. exit(EXIT_FAILURE);
  256. }
  257. } else if (pad > 1) {
  258. while (pad > 0) {
  259. int todo = sizeof(zeros);
  260. if (todo > pad)
  261. todo = pad;
  262. if (write(ifd, (char *)&zeros, todo) != todo) {
  263. fprintf(stderr, "Write error: %s\n",
  264. strerror(errno));
  265. exit(EXIT_FAILURE);
  266. }
  267. pad -= todo;
  268. }
  269. }
  270. munmap((void *)ptr, sbuf.st_size);
  271. close(dfd);
  272. }
  273. /* Return this IVT offset in the final output file */
  274. static int generate_ivt_for_fit(int fd, int fit_offset, uint32_t ep,
  275. uint32_t *fit_load_addr)
  276. {
  277. image_header_t image_header;
  278. int ret;
  279. uint32_t fit_size, load_addr;
  280. int align_len = 64 - 1; /* 64 is cacheline size */
  281. ret = lseek(fd, fit_offset, SEEK_SET);
  282. if (ret < 0) {
  283. fprintf(stderr, "lseek fd fail for fit\n");
  284. exit(EXIT_FAILURE);
  285. }
  286. if (read(fd, (char *)&image_header, sizeof(image_header_t)) !=
  287. sizeof(image_header_t)) {
  288. fprintf(stderr, "generate_ivt_for_fit read failed: %s\n",
  289. strerror(errno));
  290. exit(EXIT_FAILURE);
  291. }
  292. if (be32_to_cpu(image_header.ih_magic) != FDT_MAGIC) {
  293. fprintf(stderr, "%s error: not a FIT file\n", __func__);
  294. exit(EXIT_FAILURE);
  295. }
  296. fit_size = fdt_totalsize(&image_header);
  297. fit_size = ALIGN_IMX(fit_size, ALIGN_SIZE);
  298. ret = lseek(fd, fit_offset + fit_size, SEEK_SET);
  299. if (ret < 0) {
  300. fprintf(stderr, "lseek fd fail for fit\n");
  301. exit(EXIT_FAILURE);
  302. }
  303. /*
  304. * ep is the u-boot entry. SPL loads the FIT before the u-boot
  305. * address. 0x2000 is for CSF_SIZE
  306. */
  307. load_addr = (ep - (fit_size + CSF_SIZE) - 512 - align_len) &
  308. ~align_len;
  309. flash_header_v2_t ivt_header = { { 0xd1, 0x2000, 0x40 },
  310. load_addr, 0, 0, 0,
  311. (load_addr + fit_size),
  312. (load_addr + fit_size + 0x20),
  313. 0 };
  314. if (write(fd, &ivt_header, sizeof(flash_header_v2_t)) !=
  315. sizeof(flash_header_v2_t)) {
  316. fprintf(stderr, "IVT writing error on fit image\n");
  317. exit(EXIT_FAILURE);
  318. }
  319. *fit_load_addr = load_addr;
  320. return fit_offset + fit_size;
  321. }
  322. static void dump_header_v2(imx_header_v3_t *imx_header, int index)
  323. {
  324. const char *ivt_name[2] = {"HDMI FW", "LOADER IMAGE"};
  325. fprintf(stdout, "========= IVT HEADER [%s] =========\n",
  326. ivt_name[index]);
  327. fprintf(stdout, "header.tag: \t\t0x%x\n",
  328. imx_header[index].fhdr.header.tag);
  329. fprintf(stdout, "header.length: \t\t0x%x\n",
  330. imx_header[index].fhdr.header.length);
  331. fprintf(stdout, "header.version: \t0x%x\n",
  332. imx_header[index].fhdr.header.version);
  333. fprintf(stdout, "entry: \t\t\t0x%x\n",
  334. imx_header[index].fhdr.entry);
  335. fprintf(stdout, "reserved1: \t\t0x%x\n",
  336. imx_header[index].fhdr.reserved1);
  337. fprintf(stdout, "dcd_ptr: \t\t0x%x\n",
  338. imx_header[index].fhdr.dcd_ptr);
  339. fprintf(stdout, "boot_data_ptr: \t\t0x%x\n",
  340. imx_header[index].fhdr.boot_data_ptr);
  341. fprintf(stdout, "self: \t\t\t0x%x\n",
  342. imx_header[index].fhdr.self);
  343. fprintf(stdout, "csf: \t\t\t0x%x\n",
  344. imx_header[index].fhdr.csf);
  345. fprintf(stdout, "reserved2: \t\t0x%x\n",
  346. imx_header[index].fhdr.reserved2);
  347. fprintf(stdout, "boot_data.start: \t0x%x\n",
  348. imx_header[index].boot_data.start);
  349. fprintf(stdout, "boot_data.size: \t0x%x\n",
  350. imx_header[index].boot_data.size);
  351. fprintf(stdout, "boot_data.plugin: \t0x%x\n",
  352. imx_header[index].boot_data.plugin);
  353. }
  354. void build_image(int ofd)
  355. {
  356. int file_off, header_hdmi_off = 0, header_image_off;
  357. int hdmi_fd, ap_fd, sld_fd;
  358. uint32_t sld_load_addr = 0;
  359. uint32_t csf_off, sld_csf_off = 0;
  360. int ret;
  361. struct stat sbuf;
  362. if (!ap_img) {
  363. fprintf(stderr, "No LOADER image specificed\n");
  364. exit(EXIT_FAILURE);
  365. }
  366. file_off = 0;
  367. if (signed_hdmi) {
  368. header_hdmi_off = file_off + ivt_offset;
  369. hdmi_fd = open(signed_hdmi, O_RDONLY | O_BINARY);
  370. if (hdmi_fd < 0) {
  371. fprintf(stderr, "%s: Can't open: %s\n",
  372. signed_hdmi, strerror(errno));
  373. exit(EXIT_FAILURE);
  374. }
  375. if (fstat(hdmi_fd, &sbuf) < 0) {
  376. fprintf(stderr, "%s: Can't stat: %s\n",
  377. signed_hdmi, strerror(errno));
  378. exit(EXIT_FAILURE);
  379. }
  380. close(hdmi_fd);
  381. /*
  382. * Aligned to 104KB = 92KB FW image + 0x8000
  383. * (IVT and alignment) + 0x4000 (second IVT + CSF)
  384. */
  385. file_off += ALIGN_IMX(sbuf.st_size,
  386. HDMI_FW_SIZE + 0x2000 + 0x1000);
  387. }
  388. header_image_off = file_off + ivt_offset;
  389. ap_fd = open(ap_img, O_RDONLY | O_BINARY);
  390. if (ap_fd < 0) {
  391. fprintf(stderr, "%s: Can't open: %s\n",
  392. ap_img, strerror(errno));
  393. exit(EXIT_FAILURE);
  394. }
  395. if (fstat(ap_fd, &sbuf) < 0) {
  396. fprintf(stderr, "%s: Can't stat: %s\n",
  397. ap_img, strerror(errno));
  398. exit(EXIT_FAILURE);
  399. }
  400. close(ap_fd);
  401. imx_header[IMAGE_IVT_ID].fhdr.header.tag = IVT_HEADER_TAG; /* 0xD1 */
  402. imx_header[IMAGE_IVT_ID].fhdr.header.length =
  403. cpu_to_be16(sizeof(flash_header_v2_t));
  404. imx_header[IMAGE_IVT_ID].fhdr.header.version = IVT_VERSION_V3; /* 0x41 */
  405. imx_header[IMAGE_IVT_ID].fhdr.entry = ap_start_addr;
  406. imx_header[IMAGE_IVT_ID].fhdr.self = ap_start_addr -
  407. sizeof(imx_header_v3_t);
  408. imx_header[IMAGE_IVT_ID].fhdr.dcd_ptr = 0;
  409. imx_header[IMAGE_IVT_ID].fhdr.boot_data_ptr =
  410. imx_header[IMAGE_IVT_ID].fhdr.self +
  411. offsetof(imx_header_v3_t, boot_data);
  412. imx_header[IMAGE_IVT_ID].boot_data.start =
  413. imx_header[IMAGE_IVT_ID].fhdr.self - ivt_offset;
  414. imx_header[IMAGE_IVT_ID].boot_data.size =
  415. ALIGN_IMX(sbuf.st_size + sizeof(imx_header_v3_t) + ivt_offset,
  416. sector_size);
  417. image_off = header_image_off + sizeof(imx_header_v3_t);
  418. file_off += imx_header[IMAGE_IVT_ID].boot_data.size;
  419. imx_header[IMAGE_IVT_ID].boot_data.plugin = 0;
  420. imx_header[IMAGE_IVT_ID].fhdr.csf =
  421. imx_header[IMAGE_IVT_ID].boot_data.start +
  422. imx_header[IMAGE_IVT_ID].boot_data.size;
  423. imx_header[IMAGE_IVT_ID].boot_data.size += CSF_SIZE; /* 8K region dummy CSF */
  424. csf_off = file_off;
  425. file_off += CSF_SIZE;
  426. /* Second boot loader image */
  427. if (sld_img) {
  428. if (!using_fit) {
  429. fprintf(stderr, "Not support no fit\n");
  430. exit(EXIT_FAILURE);
  431. } else {
  432. sld_header_off = sld_src_off - rom_image_offset;
  433. /*
  434. * Record the second bootloader relative offset in
  435. * image's IVT reserved1
  436. */
  437. if (rom_version == ROM_V1) {
  438. imx_header[IMAGE_IVT_ID].fhdr.reserved1 =
  439. sld_header_off - header_image_off;
  440. }
  441. sld_fd = open(sld_img, O_RDONLY | O_BINARY);
  442. if (sld_fd < 0) {
  443. fprintf(stderr, "%s: Can't open: %s\n",
  444. sld_img, strerror(errno));
  445. exit(EXIT_FAILURE);
  446. }
  447. if (fstat(sld_fd, &sbuf) < 0) {
  448. fprintf(stderr, "%s: Can't stat: %s\n",
  449. sld_img, strerror(errno));
  450. exit(EXIT_FAILURE);
  451. }
  452. close(sld_fd);
  453. file_off = sld_header_off;
  454. file_off += sbuf.st_size + sizeof(image_header_t);
  455. }
  456. }
  457. if (signed_hdmi) {
  458. header_hdmi_off -= ivt_offset;
  459. ret = lseek(ofd, header_hdmi_off, SEEK_SET);
  460. if (ret < 0) {
  461. fprintf(stderr, "lseek ofd fail for hdmi\n");
  462. exit(EXIT_FAILURE);
  463. }
  464. /* The signed HDMI FW has 0x400 IVT offset, need remove it */
  465. copy_file(ofd, signed_hdmi, 0, header_hdmi_off, 0x400);
  466. }
  467. /* Main Image */
  468. header_image_off -= ivt_offset;
  469. image_off -= ivt_offset;
  470. ret = lseek(ofd, header_image_off, SEEK_SET);
  471. if (ret < 0) {
  472. fprintf(stderr, "lseek ofd fail\n");
  473. exit(EXIT_FAILURE);
  474. }
  475. /* Write image header */
  476. if (write(ofd, &imx_header[IMAGE_IVT_ID], sizeof(imx_header_v3_t)) !=
  477. sizeof(imx_header_v3_t)) {
  478. fprintf(stderr, "error writing image hdr\n");
  479. exit(1);
  480. }
  481. copy_file(ofd, ap_img, 0, image_off, 0);
  482. csf_off -= ivt_offset;
  483. fill_zero(ofd, CSF_SIZE, csf_off);
  484. if (sld_img) {
  485. sld_header_off -= ivt_offset;
  486. ret = lseek(ofd, sld_header_off, SEEK_SET);
  487. if (ret < 0) {
  488. fprintf(stderr, "lseek ofd fail for sld_img\n");
  489. exit(EXIT_FAILURE);
  490. }
  491. /* Write image header */
  492. if (!using_fit) {
  493. /* TODO */
  494. } else {
  495. copy_file(ofd, sld_img, 0, sld_header_off, 0);
  496. sld_csf_off =
  497. generate_ivt_for_fit(ofd, sld_header_off,
  498. sld_start_addr,
  499. &sld_load_addr) + 0x20;
  500. }
  501. }
  502. if (!signed_hdmi)
  503. dump_header_v2(imx_header, 0);
  504. dump_header_v2(imx_header, 1);
  505. fprintf(stdout, "========= OFFSET dump =========");
  506. if (signed_hdmi) {
  507. fprintf(stdout, "\nSIGNED HDMI FW:\n");
  508. fprintf(stdout, " header_hdmi_off \t0x%x\n",
  509. header_hdmi_off);
  510. }
  511. fprintf(stdout, "\nLoader IMAGE:\n");
  512. fprintf(stdout, " header_image_off \t0x%x\n image_off \t\t0x%x\n csf_off \t\t0x%x\n",
  513. header_image_off, image_off, csf_off);
  514. fprintf(stdout, " spl hab block: \t0x%x 0x%x 0x%x\n",
  515. imx_header[IMAGE_IVT_ID].fhdr.self, header_image_off,
  516. csf_off - header_image_off);
  517. fprintf(stdout, "\nSecond Loader IMAGE:\n");
  518. fprintf(stdout, " sld_header_off \t0x%x\n",
  519. sld_header_off);
  520. fprintf(stdout, " sld_csf_off \t\t0x%x\n",
  521. sld_csf_off);
  522. fprintf(stdout, " sld hab block: \t0x%x 0x%x 0x%x\n",
  523. sld_load_addr, sld_header_off, sld_csf_off - sld_header_off);
  524. }
  525. int imx8mimage_copy_image(int outfd, struct image_tool_params *mparams)
  526. {
  527. /*
  528. * SECO FW is a container image, this is to calculate the
  529. * 2nd container offset.
  530. */
  531. fprintf(stdout, "parsing %s\n", mparams->imagename);
  532. parse_cfg_file(mparams->imagename);
  533. build_image(outfd);
  534. return 0;
  535. }
  536. /*
  537. * imx8mimage parameters
  538. */
  539. U_BOOT_IMAGE_TYPE(
  540. imx8mimage,
  541. "NXP i.MX8M Boot Image support",
  542. 0,
  543. NULL,
  544. imx8mimage_check_params,
  545. NULL,
  546. imx8mimage_print_header,
  547. imx8mimage_set_header,
  548. NULL,
  549. imx8mimage_check_image_types,
  550. NULL,
  551. NULL
  552. );