spl.h 22 KB

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  1. /* SPDX-License-Identifier: GPL-2.0+ */
  2. /*
  3. * (C) Copyright 2012
  4. * Texas Instruments, <www.ti.com>
  5. */
  6. #ifndef _SPL_H_
  7. #define _SPL_H_
  8. #include <binman_sym.h>
  9. #include <linker_lists.h>
  10. /* Platform-specific defines */
  11. #include <linux/compiler.h>
  12. #include <asm/global_data.h>
  13. #include <asm/spl.h>
  14. #include <handoff.h>
  15. struct blk_desc;
  16. struct image_header;
  17. /* Value in r0 indicates we booted from U-Boot */
  18. #define UBOOT_NOT_LOADED_FROM_SPL 0x13578642
  19. /* Boot type */
  20. #define MMCSD_MODE_UNDEFINED 0
  21. #define MMCSD_MODE_RAW 1
  22. #define MMCSD_MODE_FS 2
  23. #define MMCSD_MODE_EMMCBOOT 3
  24. struct blk_desc;
  25. struct image_header;
  26. /*
  27. * u_boot_first_phase() - check if this is the first U-Boot phase
  28. *
  29. * U-Boot has up to three phases: TPL, SPL and U-Boot proper. Depending on the
  30. * build flags we can determine whether the current build is for the first
  31. * phase of U-Boot or not. If there is no SPL, then this is U-Boot proper. If
  32. * there is SPL but no TPL, the the first phase is SPL. If there is TPL, then
  33. * it is the first phase.
  34. *
  35. * @returns true if this is the first phase of U-Boot
  36. *
  37. */
  38. static inline bool u_boot_first_phase(void)
  39. {
  40. if (IS_ENABLED(CONFIG_TPL)) {
  41. if (IS_ENABLED(CONFIG_TPL_BUILD))
  42. return true;
  43. } else if (IS_ENABLED(CONFIG_SPL)) {
  44. if (IS_ENABLED(CONFIG_SPL_BUILD))
  45. return true;
  46. } else {
  47. return true;
  48. }
  49. return false;
  50. }
  51. enum u_boot_phase {
  52. PHASE_NONE, /* Invalid phase, signifying before U-Boot */
  53. PHASE_TPL, /* Running in TPL */
  54. PHASE_SPL, /* Running in SPL */
  55. PHASE_BOARD_F, /* Running in U-Boot before relocation */
  56. PHASE_BOARD_R, /* Running in U-Boot after relocation */
  57. };
  58. /**
  59. * spl_phase() - Find out the phase of U-Boot
  60. *
  61. * This can be used to avoid #ifdef logic and use if() instead.
  62. *
  63. * For example, to include code only in TPL, you might do:
  64. *
  65. * #ifdef CONFIG_TPL_BUILD
  66. * ...
  67. * #endif
  68. *
  69. * but with this you can use:
  70. *
  71. * if (spl_phase() == PHASE_TPL) {
  72. * ...
  73. * }
  74. *
  75. * To include code only in SPL, you might do:
  76. *
  77. * #if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD)
  78. * ...
  79. * #endif
  80. *
  81. * but with this you can use:
  82. *
  83. * if (spl_phase() == PHASE_SPL) {
  84. * ...
  85. * }
  86. *
  87. * To include code only in U-Boot proper, you might do:
  88. *
  89. * #ifndef CONFIG_SPL_BUILD
  90. * ...
  91. * #endif
  92. *
  93. * but with this you can use:
  94. *
  95. * if (spl_phase() == PHASE_BOARD_F) {
  96. * ...
  97. * }
  98. *
  99. * @return U-Boot phase
  100. */
  101. static inline enum u_boot_phase spl_phase(void)
  102. {
  103. #ifdef CONFIG_TPL_BUILD
  104. return PHASE_TPL;
  105. #elif CONFIG_SPL_BUILD
  106. return PHASE_SPL;
  107. #else
  108. DECLARE_GLOBAL_DATA_PTR;
  109. if (!(gd->flags & GD_FLG_RELOC))
  110. return PHASE_BOARD_F;
  111. else
  112. return PHASE_BOARD_R;
  113. #endif
  114. }
  115. /**
  116. * spl_prev_phase() - Figure out the previous U-Boot phase
  117. *
  118. * @return the previous phase from this one, e.g. if called in SPL this returns
  119. * PHASE_TPL, if TPL is enabled
  120. */
  121. static inline enum u_boot_phase spl_prev_phase(void)
  122. {
  123. #ifdef CONFIG_TPL_BUILD
  124. return PHASE_NONE;
  125. #elif defined(CONFIG_SPL_BUILD)
  126. return IS_ENABLED(CONFIG_TPL) ? PHASE_TPL : PHASE_NONE;
  127. #else
  128. return IS_ENABLED(CONFIG_SPL) ? PHASE_SPL : PHASE_NONE;
  129. #endif
  130. }
  131. /**
  132. * spl_next_phase() - Figure out the next U-Boot phase
  133. *
  134. * @return the next phase from this one, e.g. if called in TPL this returns
  135. * PHASE_SPL
  136. */
  137. static inline enum u_boot_phase spl_next_phase(void)
  138. {
  139. #ifdef CONFIG_TPL_BUILD
  140. return PHASE_SPL;
  141. #else
  142. return PHASE_BOARD_F;
  143. #endif
  144. }
  145. /**
  146. * spl_phase_name() - Get the name of the current phase
  147. *
  148. * @return phase name
  149. */
  150. static inline const char *spl_phase_name(enum u_boot_phase phase)
  151. {
  152. switch (phase) {
  153. case PHASE_TPL:
  154. return "TPL";
  155. case PHASE_SPL:
  156. return "SPL";
  157. case PHASE_BOARD_F:
  158. case PHASE_BOARD_R:
  159. return "U-Boot";
  160. default:
  161. return "phase?";
  162. }
  163. }
  164. /* A string name for SPL or TPL */
  165. #ifdef CONFIG_SPL_BUILD
  166. # ifdef CONFIG_TPL_BUILD
  167. # define SPL_TPL_NAME "TPL"
  168. # else
  169. # define SPL_TPL_NAME "SPL"
  170. # endif
  171. # define SPL_TPL_PROMPT SPL_TPL_NAME ": "
  172. #else
  173. # define SPL_TPL_NAME ""
  174. # define SPL_TPL_PROMPT ""
  175. #endif
  176. struct spl_image_info {
  177. const char *name;
  178. u8 os;
  179. uintptr_t load_addr;
  180. uintptr_t entry_point;
  181. #if CONFIG_IS_ENABLED(LOAD_FIT) || CONFIG_IS_ENABLED(LOAD_FIT_FULL)
  182. void *fdt_addr;
  183. #endif
  184. u32 boot_device;
  185. u32 size;
  186. u32 flags;
  187. void *arg;
  188. #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
  189. ulong dcrc_data;
  190. ulong dcrc_length;
  191. ulong dcrc;
  192. #endif
  193. };
  194. /**
  195. * Information required to load data from a device
  196. *
  197. * @dev: Pointer to the device, e.g. struct mmc *
  198. * @priv: Private data for the device
  199. * @bl_len: Block length for reading in bytes
  200. * @filename: Name of the fit image file.
  201. * @read: Function to call to read from the device
  202. */
  203. struct spl_load_info {
  204. void *dev;
  205. void *priv;
  206. int bl_len;
  207. const char *filename;
  208. ulong (*read)(struct spl_load_info *load, ulong sector, ulong count,
  209. void *buf);
  210. };
  211. /*
  212. * We need to know the position of U-Boot in memory so we can jump to it. We
  213. * allow any U-Boot binary to be used (u-boot.bin, u-boot-nodtb.bin,
  214. * u-boot.img), hence the '_any'. These is no checking here that the correct
  215. * image is found. For example if u-boot.img is used we don't check that
  216. * spl_parse_image_header() can parse a valid header.
  217. *
  218. * Similarly for SPL, so that TPL can jump to SPL.
  219. */
  220. binman_sym_extern(ulong, u_boot_any, image_pos);
  221. binman_sym_extern(ulong, u_boot_any, size);
  222. binman_sym_extern(ulong, spl, image_pos);
  223. binman_sym_extern(ulong, spl, size);
  224. /**
  225. * spl_get_image_pos() - get the image position of the next phase
  226. *
  227. * This returns the image position to use to load the next phase of U-Boot
  228. */
  229. ulong spl_get_image_pos(void);
  230. /**
  231. * spl_get_image_size() - get the size of the next phase
  232. *
  233. * This returns the size to use to load the next phase of U-Boot
  234. */
  235. ulong spl_get_image_size(void);
  236. /**
  237. * spl_get_image_text_base() - get the text base of the next phase
  238. *
  239. * This returns the address that the next stage is linked to run at, i.e.
  240. * CONFIG_SPL_TEXT_BASE or CONFIG_SYS_TEXT_BASE
  241. *
  242. * @return text-base address
  243. */
  244. ulong spl_get_image_text_base(void);
  245. /**
  246. * spl_load_simple_fit_skip_processing() - Hook to allow skipping the FIT
  247. * image processing during spl_load_simple_fit().
  248. *
  249. * Return true to skip FIT processing, false to preserve the full code flow
  250. * of spl_load_simple_fit().
  251. */
  252. bool spl_load_simple_fit_skip_processing(void);
  253. /**
  254. * spl_load_simple_fit() - Loads a fit image from a device.
  255. * @spl_image: Image description to set up
  256. * @info: Structure containing the information required to load data.
  257. * @sector: Sector number where FIT image is located in the device
  258. * @fdt: Pointer to the copied FIT header.
  259. *
  260. * Reads the FIT image @sector in the device. Loads u-boot image to
  261. * specified load address and copies the dtb to end of u-boot image.
  262. * Returns 0 on success.
  263. */
  264. int spl_load_simple_fit(struct spl_image_info *spl_image,
  265. struct spl_load_info *info, ulong sector, void *fdt);
  266. #define SPL_COPY_PAYLOAD_ONLY 1
  267. #define SPL_FIT_FOUND 2
  268. /**
  269. * spl_load_legacy_img() - Loads a legacy image from a device.
  270. * @spl_image: Image description to set up
  271. * @load: Structure containing the information required to load data.
  272. * @header: Pointer to image header (including appended image)
  273. *
  274. * Reads an legacy image from the device. Loads u-boot image to
  275. * specified load address.
  276. * Returns 0 on success.
  277. */
  278. int spl_load_legacy_img(struct spl_image_info *spl_image,
  279. struct spl_load_info *load, ulong header);
  280. /**
  281. * spl_load_imx_container() - Loads a imx container image from a device.
  282. * @spl_image: Image description to set up
  283. * @info: Structure containing the information required to load data.
  284. * @sector: Sector number where container image is located in the device
  285. *
  286. * Reads the container image @sector in the device. Loads u-boot image to
  287. * specified load address.
  288. */
  289. int spl_load_imx_container(struct spl_image_info *spl_image,
  290. struct spl_load_info *info, ulong sector);
  291. /* SPL common functions */
  292. void preloader_console_init(void);
  293. u32 spl_boot_device(void);
  294. /**
  295. * spl_mmc_boot_mode() - Lookup function for the mode of an MMC boot source.
  296. * @boot_device: ID of the device which the MMC driver wants to read
  297. * from. Common values are e.g. BOOT_DEVICE_MMC1,
  298. * BOOT_DEVICE_MMC2, BOOT_DEVICE_MMC2_2.
  299. *
  300. * This function should return one of MMCSD_MODE_FS, MMCSD_MODE_EMMCBOOT, or
  301. * MMCSD_MODE_RAW for each MMC boot source which is defined for the target. The
  302. * boot_device parameter tells which device the MMC driver is interested in.
  303. *
  304. * If not overridden, it is weakly defined in common/spl/spl_mmc.c.
  305. *
  306. * Note: It is important to use the boot_device parameter instead of e.g.
  307. * spl_boot_device() as U-Boot is not always loaded from the same device as SPL.
  308. */
  309. u32 spl_mmc_boot_mode(const u32 boot_device);
  310. /**
  311. * spl_mmc_boot_partition() - MMC partition to load U-Boot from.
  312. * @boot_device: ID of the device which the MMC driver wants to load
  313. * U-Boot from.
  314. *
  315. * This function should return the partition number which the SPL
  316. * should load U-Boot from (on the given boot_device) when
  317. * CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION is set.
  318. *
  319. * If not overridden, it is weakly defined in common/spl/spl_mmc.c.
  320. */
  321. int spl_mmc_boot_partition(const u32 boot_device);
  322. /**
  323. * spl_alloc_bd() - Allocate space for bd_info
  324. *
  325. * This sets up the gd->bd pointer by allocating memory for it
  326. *
  327. * @return 0 if OK, -ENOMEM if out of memory
  328. */
  329. int spl_alloc_bd(void);
  330. /**
  331. * spl_set_header_raw_uboot() - Set up a standard SPL image structure
  332. *
  333. * This sets up the given spl_image which the standard values obtained from
  334. * config options: CONFIG_SYS_MONITOR_LEN, CONFIG_SYS_UBOOT_START,
  335. * CONFIG_SYS_TEXT_BASE.
  336. *
  337. * @spl_image: Image description to set up
  338. */
  339. void spl_set_header_raw_uboot(struct spl_image_info *spl_image);
  340. /**
  341. * spl_parse_image_header() - parse the image header and set up info
  342. *
  343. * This parses the legacy image header information at @header and sets up
  344. * @spl_image according to what is found. If no image header is found, then
  345. * a raw image or bootz is assumed. If CONFIG_SPL_PANIC_ON_RAW_IMAGE is
  346. * enabled, then this causes a panic. If CONFIG_SPL_RAW_IMAGE_SUPPORT is not
  347. * enabled then U-Boot gives up. Otherwise U-Boot sets up the image using
  348. * spl_set_header_raw_uboot(), or possibly the bootz header.
  349. *
  350. * @spl_image: Image description to set up
  351. * @header image header to parse
  352. * @return 0 if a header was correctly parsed, -ve on error
  353. */
  354. int spl_parse_image_header(struct spl_image_info *spl_image,
  355. const struct image_header *header);
  356. void spl_board_prepare_for_linux(void);
  357. void spl_board_prepare_for_boot(void);
  358. int spl_board_ubi_load_image(u32 boot_device);
  359. int spl_board_boot_device(u32 boot_device);
  360. /**
  361. * jump_to_image_linux() - Jump to a Linux kernel from SPL
  362. *
  363. * This jumps into a Linux kernel using the information in @spl_image.
  364. *
  365. * @spl_image: Image description to set up
  366. */
  367. void __noreturn jump_to_image_linux(struct spl_image_info *spl_image);
  368. /**
  369. * spl_start_uboot() - Check if SPL should start the kernel or U-Boot
  370. *
  371. * This is called by the various SPL loaders to determine whether the board
  372. * wants to load the kernel or U-Boot. This function should be provided by
  373. * the board.
  374. *
  375. * @return 0 if SPL should start the kernel, 1 if U-Boot must be started
  376. */
  377. int spl_start_uboot(void);
  378. /**
  379. * spl_display_print() - Display a board-specific message in SPL
  380. *
  381. * If CONFIG_SPL_DISPLAY_PRINT is enabled, U-Boot will call this function
  382. * immediately after displaying the SPL console banner ("U-Boot SPL ...").
  383. * This function should be provided by the board.
  384. */
  385. void spl_display_print(void);
  386. /**
  387. * struct spl_boot_device - Describes a boot device used by SPL
  388. *
  389. * @boot_device: A number indicating the BOOT_DEVICE type. There are various
  390. * BOOT_DEVICE... #defines and enums in U-Boot and they are not consistently
  391. * numbered.
  392. * @boot_device_name: Named boot device, or NULL if none.
  393. *
  394. * Note: Additional fields can be added here, bearing in mind that SPL is
  395. * size-sensitive and common fields will be present on all boards. This
  396. * struct can also be used to return additional information about the load
  397. * process if that becomes useful.
  398. */
  399. struct spl_boot_device {
  400. uint boot_device;
  401. const char *boot_device_name;
  402. };
  403. /**
  404. * Holds information about a way of loading an SPL image
  405. *
  406. * @name: User-friendly name for this method (e.g. "MMC")
  407. * @boot_device: Boot device that this loader supports
  408. * @load_image: Function to call to load image
  409. */
  410. struct spl_image_loader {
  411. #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
  412. const char *name;
  413. #endif
  414. uint boot_device;
  415. /**
  416. * load_image() - Load an SPL image
  417. *
  418. * @spl_image: place to put image information
  419. * @bootdev: describes the boot device to load from
  420. */
  421. int (*load_image)(struct spl_image_info *spl_image,
  422. struct spl_boot_device *bootdev);
  423. };
  424. /* Declare an SPL image loader */
  425. #define SPL_LOAD_IMAGE(__name) \
  426. ll_entry_declare(struct spl_image_loader, __name, spl_image_loader)
  427. /*
  428. * _priority is the priority of this method, 0 meaning it will be the top
  429. * choice for this device, 9 meaning it is the bottom choice.
  430. * _boot_device is the BOOT_DEVICE_... value
  431. * _method is the load_image function to call
  432. */
  433. #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
  434. #define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \
  435. SPL_LOAD_IMAGE(_boot_device ## _priority ## _method) = { \
  436. .name = _name, \
  437. .boot_device = _boot_device, \
  438. .load_image = _method, \
  439. }
  440. #else
  441. #define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \
  442. SPL_LOAD_IMAGE(_boot_device ## _priority ## _method) = { \
  443. .boot_device = _boot_device, \
  444. .load_image = _method, \
  445. }
  446. #endif
  447. /* SPL FAT image functions */
  448. int spl_load_image_fat(struct spl_image_info *spl_image,
  449. struct blk_desc *block_dev, int partition,
  450. const char *filename);
  451. int spl_load_image_fat_os(struct spl_image_info *spl_image,
  452. struct blk_desc *block_dev, int partition);
  453. void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image);
  454. /* SPL EXT image functions */
  455. int spl_load_image_ext(struct spl_image_info *spl_image,
  456. struct blk_desc *block_dev, int partition,
  457. const char *filename);
  458. int spl_load_image_ext_os(struct spl_image_info *spl_image,
  459. struct blk_desc *block_dev, int partition);
  460. /**
  461. * spl_early_init() - Set up device tree and driver model in SPL if enabled
  462. *
  463. * Call this function in board_init_f() if you want to use device tree and
  464. * driver model early, before board_init_r() is called.
  465. *
  466. * If this is not called, then driver model will be inactive in SPL's
  467. * board_init_f(), and no device tree will be available.
  468. */
  469. int spl_early_init(void);
  470. /**
  471. * spl_init() - Set up device tree and driver model in SPL if enabled
  472. *
  473. * You can optionally call spl_early_init(), then optionally call spl_init().
  474. * This function will be called from board_init_r() if not called earlier.
  475. *
  476. * Both spl_early_init() and spl_init() perform a similar function except that
  477. * the latter will not set up the malloc() area if
  478. * CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN is enabled, since it is assumed to
  479. * already be done by a calll to spl_relocate_stack_gd() before board_init_r()
  480. * is reached.
  481. *
  482. * This function will be called from board_init_r() if not called earlier.
  483. *
  484. * If this is not called, then driver model will be inactive in SPL's
  485. * board_init_f(), and no device tree will be available.
  486. */
  487. int spl_init(void);
  488. #ifdef CONFIG_SPL_BOARD_INIT
  489. void spl_board_init(void);
  490. #endif
  491. /**
  492. * spl_was_boot_source() - check if U-Boot booted from SPL
  493. *
  494. * This will normally be true, but if U-Boot jumps to second U-Boot, it will
  495. * be false. This should be implemented by board-specific code.
  496. *
  497. * @return true if U-Boot booted from SPL, else false
  498. */
  499. bool spl_was_boot_source(void);
  500. /**
  501. * spl_dfu_cmd- run dfu command with chosen mmc device interface
  502. * @param usb_index - usb controller number
  503. * @param mmc_dev - mmc device nubmer
  504. *
  505. * @return 0 on success, otherwise error code
  506. */
  507. int spl_dfu_cmd(int usbctrl, char *dfu_alt_info, char *interface, char *devstr);
  508. int spl_mmc_load_image(struct spl_image_info *spl_image,
  509. struct spl_boot_device *bootdev);
  510. /**
  511. * spl_mmc_load() - Load an image file from MMC/SD media
  512. *
  513. * @param spl_image Image data filled in by loading process
  514. * @param bootdev Describes which device to load from
  515. * @param filename Name of file to load (in FS mode)
  516. * @param raw_part Partition to load from (in RAW mode)
  517. * @param raw_sect Sector to load from (in RAW mode)
  518. *
  519. * @return 0 on success, otherwise error code
  520. */
  521. int spl_mmc_load(struct spl_image_info *spl_image,
  522. struct spl_boot_device *bootdev,
  523. const char *filename,
  524. int raw_part,
  525. unsigned long raw_sect);
  526. /**
  527. * spl_usb_load() - Load an image file from USB mass storage
  528. *
  529. * @param spl_image Image data filled in by loading process
  530. * @param bootdev Describes which device to load from
  531. * @param raw_part Fat partition to load from
  532. * @param filename Name of file to load
  533. *
  534. * @return 0 on success, otherwise error code
  535. */
  536. int spl_usb_load(struct spl_image_info *spl_image,
  537. struct spl_boot_device *bootdev,
  538. int partition, const char *filename);
  539. int spl_ymodem_load_image(struct spl_image_info *spl_image,
  540. struct spl_boot_device *bootdev);
  541. /**
  542. * spl_invoke_atf - boot using an ARM trusted firmware image
  543. */
  544. void spl_invoke_atf(struct spl_image_info *spl_image);
  545. /**
  546. * bl2_plat_get_bl31_params() - return params for bl31.
  547. * @bl32_entry: address of BL32 executable (secure)
  548. * @bl33_entry: address of BL33 executable (non secure)
  549. * @fdt_addr: address of Flat Device Tree
  550. *
  551. * This is a weak function which might be overridden by the board code. By
  552. * default it will just call bl2_plat_get_bl31_params_default().
  553. *
  554. * If you just want to manipulate or add some parameters, you can override
  555. * this function, call bl2_plat_get_bl31_params_default and operate on the
  556. * returned bl31 params.
  557. *
  558. * Return: bl31 params structure pointer
  559. */
  560. struct bl31_params *bl2_plat_get_bl31_params(uintptr_t bl32_entry,
  561. uintptr_t bl33_entry,
  562. uintptr_t fdt_addr);
  563. /**
  564. * bl2_plat_get_bl31_params_default() - prepare params for bl31.
  565. * @bl32_entry: address of BL32 executable (secure)
  566. * @bl33_entry: address of BL33 executable (non secure)
  567. * @fdt_addr: address of Flat Device Tree
  568. *
  569. * This is the default implementation of bl2_plat_get_bl31_params(). It assigns
  570. * a pointer to the memory that the platform has kept aside to pass platform
  571. * specific and trusted firmware related information to BL31. This memory is
  572. * allocated by allocating memory to bl2_to_bl31_params_mem structure which is
  573. * a superset of all the structure whose information is passed to BL31
  574. *
  575. * NOTE: The memory is statically allocated, thus this function should be
  576. * called only once. All subsequent calls will overwrite any changes.
  577. *
  578. * Return: bl31 params structure pointer
  579. */
  580. struct bl31_params *bl2_plat_get_bl31_params_default(uintptr_t bl32_entry,
  581. uintptr_t bl33_entry,
  582. uintptr_t fdt_addr);
  583. /**
  584. * bl2_plat_get_bl31_params_v2() - return params for bl31
  585. * @bl32_entry: address of BL32 executable (secure)
  586. * @bl33_entry: address of BL33 executable (non secure)
  587. * @fdt_addr: address of Flat Device Tree
  588. *
  589. * This function does the same as bl2_plat_get_bl31_params() except that is is
  590. * used for the new LOAD_IMAGE_V2 option, which uses a slightly different
  591. * method to pass the parameters.
  592. *
  593. * Return: bl31 params structure pointer
  594. */
  595. struct bl_params *bl2_plat_get_bl31_params_v2(uintptr_t bl32_entry,
  596. uintptr_t bl33_entry,
  597. uintptr_t fdt_addr);
  598. /**
  599. * bl2_plat_get_bl31_params_v2_default() - prepare params for bl31.
  600. * @bl32_entry: address of BL32 executable (secure)
  601. * @bl33_entry: address of BL33 executable (non secure)
  602. * @fdt_addr: address of Flat Device Tree
  603. *
  604. * This is the default implementation of bl2_plat_get_bl31_params_v2(). It
  605. * prepares the linked list of the bl31 params, populates the image types and
  606. * set the entry points for bl32 and bl33 (if available).
  607. *
  608. * NOTE: The memory is statically allocated, thus this function should be
  609. * called only once. All subsequent calls will overwrite any changes.
  610. *
  611. * Return: bl31 params structure pointer
  612. */
  613. struct bl_params *bl2_plat_get_bl31_params_v2_default(uintptr_t bl32_entry,
  614. uintptr_t bl33_entry,
  615. uintptr_t fdt_addr);
  616. /**
  617. * spl_optee_entry - entry function for optee
  618. *
  619. * args defind in op-tee project
  620. * https://github.com/OP-TEE/optee_os/
  621. * core/arch/arm/kernel/generic_entry_a32.S
  622. * @arg0: pagestore
  623. * @arg1: (ARMv7 standard bootarg #1)
  624. * @arg2: device tree address, (ARMv7 standard bootarg #2)
  625. * @arg3: non-secure entry address (ARMv7 bootarg #0)
  626. */
  627. void spl_optee_entry(void *arg0, void *arg1, void *arg2, void *arg3);
  628. /**
  629. * spl_invoke_opensbi - boot using a RISC-V OpenSBI image
  630. */
  631. void spl_invoke_opensbi(struct spl_image_info *spl_image);
  632. /**
  633. * board_return_to_bootrom - allow for boards to continue with the boot ROM
  634. *
  635. * If a board (e.g. the Rockchip RK3368 boards) provide some
  636. * supporting functionality for SPL in their boot ROM and the SPL
  637. * stage wants to return to the ROM code to continue booting, boards
  638. * can implement 'board_return_to_bootrom'.
  639. */
  640. int board_return_to_bootrom(struct spl_image_info *spl_image,
  641. struct spl_boot_device *bootdev);
  642. /**
  643. * board_spl_fit_post_load - allow process images after loading finished
  644. * @fit: Pointer to a valid Flattened Image Tree blob
  645. */
  646. void board_spl_fit_post_load(const void *fit);
  647. /**
  648. * board_spl_fit_size_align - specific size align before processing payload
  649. *
  650. */
  651. ulong board_spl_fit_size_align(ulong size);
  652. /**
  653. * spl_perform_fixups() - arch/board-specific callback before processing
  654. * the boot-payload
  655. */
  656. void spl_perform_fixups(struct spl_image_info *spl_image);
  657. /*
  658. * spl_get_load_buffer() - get buffer for loading partial image data
  659. *
  660. * Returns memory area which can be populated by partial image data,
  661. * ie. uImage or fitImage header.
  662. */
  663. struct image_header *spl_get_load_buffer(ssize_t offset, size_t size);
  664. void spl_save_restore_data(void);
  665. #endif