1 /* SPDX-License-Identifier: GPL-2.0+ */
4 * Texas Instruments, <www.ti.com>
9 #include <binman_sym.h>
10 #include <linker_lists.h>
12 /* Platform-specific defines */
13 #include <linux/compiler.h>
14 #include <asm/global_data.h>
20 struct legacy_img_hdr;
22 /* Value in r0 indicates we booted from U-Boot */
23 #define UBOOT_NOT_LOADED_FROM_SPL 0x13578642
26 #define MMCSD_MODE_UNDEFINED 0
27 #define MMCSD_MODE_RAW 1
28 #define MMCSD_MODE_FS 2
29 #define MMCSD_MODE_EMMCBOOT 3
32 struct legacy_img_hdr;
33 struct spl_boot_device;
36 * u_boot_first_phase() - check if this is the first U-Boot phase
38 * U-Boot has up to three phases: TPL, SPL and U-Boot proper. Depending on the
39 * build flags we can determine whether the current build is for the first
40 * phase of U-Boot or not. If there is no SPL, then this is U-Boot proper. If
41 * there is SPL but no TPL, the the first phase is SPL. If there is TPL, then
42 * it is the first phase.
44 * @returns true if this is the first phase of U-Boot
47 static inline bool u_boot_first_phase(void)
49 if (IS_ENABLED(CONFIG_TPL)) {
50 if (IS_ENABLED(CONFIG_TPL_BUILD))
52 } else if (IS_ENABLED(CONFIG_SPL)) {
53 if (IS_ENABLED(CONFIG_SPL_BUILD))
63 PHASE_NONE, /* Invalid phase, signifying before U-Boot */
64 PHASE_TPL, /* Running in TPL */
65 PHASE_VPL, /* Running in VPL */
66 PHASE_SPL, /* Running in SPL */
67 PHASE_BOARD_F, /* Running in U-Boot before relocation */
68 PHASE_BOARD_R, /* Running in U-Boot after relocation */
72 * spl_phase() - Find out the phase of U-Boot
74 * This can be used to avoid #ifdef logic and use if() instead.
76 * For example, to include code only in TPL, you might do:
78 * #ifdef CONFIG_TPL_BUILD
82 * but with this you can use:
84 * if (spl_phase() == PHASE_TPL) {
88 * To include code only in SPL, you might do:
90 * #if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD)
94 * but with this you can use:
96 * if (spl_phase() == PHASE_SPL) {
100 * To include code only in U-Boot proper, you might do:
102 * #ifndef CONFIG_SPL_BUILD
106 * but with this you can use:
108 * if (spl_phase() == PHASE_BOARD_F) {
112 * Return: U-Boot phase
114 static inline enum u_boot_phase spl_phase(void)
116 #ifdef CONFIG_TPL_BUILD
118 #elif defined(CONFIG_VPL_BUILD)
120 #elif defined(CONFIG_SPL_BUILD)
123 DECLARE_GLOBAL_DATA_PTR;
125 if (!(gd->flags & GD_FLG_RELOC))
126 return PHASE_BOARD_F;
128 return PHASE_BOARD_R;
133 * spl_prev_phase() - Figure out the previous U-Boot phase
135 * Return: the previous phase from this one, e.g. if called in SPL this returns
136 * PHASE_TPL, if TPL is enabled
138 static inline enum u_boot_phase spl_prev_phase(void)
140 #ifdef CONFIG_TPL_BUILD
142 #elif defined(CONFIG_VPL_BUILD)
143 return PHASE_TPL; /* VPL requires TPL */
144 #elif defined(CONFIG_SPL_BUILD)
145 return IS_ENABLED(CONFIG_VPL) ? PHASE_VPL :
146 IS_ENABLED(CONFIG_TPL) ? PHASE_TPL :
149 return IS_ENABLED(CONFIG_SPL) ? PHASE_SPL :
155 * spl_next_phase() - Figure out the next U-Boot phase
157 * Return: the next phase from this one, e.g. if called in TPL this returns
160 static inline enum u_boot_phase spl_next_phase(void)
162 #ifdef CONFIG_TPL_BUILD
163 return IS_ENABLED(CONFIG_VPL) ? PHASE_VPL : PHASE_SPL;
164 #elif defined(CONFIG_VPL_BUILD)
167 return PHASE_BOARD_F;
172 * spl_phase_name() - Get the name of the current phase
176 static inline const char *spl_phase_name(enum u_boot_phase phase)
194 * spl_phase_prefix() - Get the prefix of the current phase
196 * @phase: Phase to look up
197 * Return: phase prefix ("spl", "tpl", etc.)
199 static inline const char *spl_phase_prefix(enum u_boot_phase phase)
216 /* A string name for SPL or TPL */
217 #ifdef CONFIG_SPL_BUILD
218 # ifdef CONFIG_TPL_BUILD
219 # define SPL_TPL_NAME "TPL"
220 # elif defined(CONFIG_VPL_BUILD)
221 # define SPL_TPL_NAME "VPL"
223 # define SPL_TPL_NAME "SPL"
225 # define SPL_TPL_PROMPT SPL_TPL_NAME ": "
227 # define SPL_TPL_NAME ""
228 # define SPL_TPL_PROMPT ""
232 * enum spl_sandbox_flags - flags for sandbox's use of spl_image_info->flags
234 * @SPL_SANDBOXF_ARG_IS_FNAME: arg is the filename to jump to (default)
235 * @SPL_SANDBOXF_ARG_IS_BUF: arg is the containing image to jump to, @offset is
236 * the start offset within the image, @size is the size of the image
238 enum spl_sandbox_flags {
239 SPL_SANDBOXF_ARG_IS_FNAME = 0,
240 SPL_SANDBOXF_ARG_IS_BUF,
243 struct spl_image_info {
247 uintptr_t entry_point;
248 #if CONFIG_IS_ENABLED(LOAD_FIT) || CONFIG_IS_ENABLED(LOAD_FIT_FULL)
256 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
264 * Information required to load data from a device
266 * @dev: Pointer to the device, e.g. struct mmc *
267 * @priv: Private data for the device
268 * @bl_len: Block length for reading in bytes
269 * @filename: Name of the fit image file.
270 * @read: Function to call to read from the device
272 struct spl_load_info {
276 const char *filename;
278 * read() - Read from device
280 * @load: Information about the load state
281 * @sector: Sector number to read from (each @load->bl_len bytes)
282 * @count: Number of sectors to read
283 * @buf: Buffer to read into
284 * @return number of sectors read, 0 on error
286 ulong (*read)(struct spl_load_info *load, ulong sector, ulong count,
291 * We need to know the position of U-Boot in memory so we can jump to it. We
292 * allow any U-Boot binary to be used (u-boot.bin, u-boot-nodtb.bin,
293 * u-boot.img), hence the '_any'. These is no checking here that the correct
294 * image is found. For example if u-boot.img is used we don't check that
295 * spl_parse_image_header() can parse a valid header.
297 * Similarly for SPL, so that TPL can jump to SPL.
299 binman_sym_extern(ulong, u_boot_any, image_pos);
300 binman_sym_extern(ulong, u_boot_any, size);
301 binman_sym_extern(ulong, u_boot_spl_any, image_pos);
302 binman_sym_extern(ulong, u_boot_spl_any, size);
303 binman_sym_extern(ulong, u_boot_vpl_any, image_pos);
304 binman_sym_extern(ulong, u_boot_vpl_any, size);
307 * spl_get_image_pos() - get the image position of the next phase
309 * This returns the image position to use to load the next phase of U-Boot
311 ulong spl_get_image_pos(void);
314 * spl_get_image_size() - get the size of the next phase
316 * This returns the size to use to load the next phase of U-Boot
318 ulong spl_get_image_size(void);
321 * spl_get_image_text_base() - get the text base of the next phase
323 * This returns the address that the next stage is linked to run at, i.e.
324 * CONFIG_SPL_TEXT_BASE or CONFIG_TEXT_BASE
326 * Return: text-base address
328 ulong spl_get_image_text_base(void);
331 * spl_load_simple_fit_skip_processing() - Hook to allow skipping the FIT
332 * image processing during spl_load_simple_fit().
334 * Return true to skip FIT processing, false to preserve the full code flow
335 * of spl_load_simple_fit().
337 bool spl_load_simple_fit_skip_processing(void);
340 * spl_load_simple_fit_fix_load() - Hook to make fixes
341 * after fit image header is loaded
343 * Returns pointer to fit
345 void *spl_load_simple_fit_fix_load(const void *fit);
348 * spl_load_simple_fit() - Loads a fit image from a device.
349 * @spl_image: Image description to set up
350 * @info: Structure containing the information required to load data.
351 * @sector: Sector number where FIT image is located in the device
352 * @fdt: Pointer to the copied FIT header.
354 * Reads the FIT image @sector in the device. Loads u-boot image to
355 * specified load address and copies the dtb to end of u-boot image.
356 * Returns 0 on success.
358 int spl_load_simple_fit(struct spl_image_info *spl_image,
359 struct spl_load_info *info, ulong sector, void *fdt);
361 #define SPL_COPY_PAYLOAD_ONLY 1
362 #define SPL_FIT_FOUND 2
365 * spl_load_legacy_img() - Loads a legacy image from a device.
366 * @spl_image: Image description to set up
367 * @load: Structure containing the information required to load data.
368 * @offset: Pointer to image
369 * @hdr: Pointer to image header
371 * Reads an legacy image from the device. Loads u-boot image to
372 * specified load address.
373 * Returns 0 on success.
375 int spl_load_legacy_img(struct spl_image_info *spl_image,
376 struct spl_boot_device *bootdev,
377 struct spl_load_info *load, ulong offset,
378 struct legacy_img_hdr *hdr);
382 * spl_load_imx_container() - Loads a imx container image from a device.
383 * @spl_image: Image description to set up
384 * @info: Structure containing the information required to load data.
385 * @sector: Sector number where container image is located in the device
387 * Reads the container image @sector in the device. Loads u-boot image to
388 * specified load address.
390 int spl_load_imx_container(struct spl_image_info *spl_image,
391 struct spl_load_info *info, ulong sector);
393 /* SPL common functions */
394 void preloader_console_init(void);
395 u32 spl_boot_device(void);
398 * spl_spi_boot_bus() - Lookup function for the SPI boot bus source.
400 * This function returns the SF bus to load from.
401 * If not overridden, it is weakly defined in common/spl/spl_spi.c.
403 u32 spl_spi_boot_bus(void);
406 * spl_spi_boot_cs() - Lookup function for the SPI boot CS source.
408 * This function returns the SF CS to load from.
409 * If not overridden, it is weakly defined in common/spl/spl_spi.c.
411 u32 spl_spi_boot_cs(void);
414 * spl_mmc_boot_mode() - Lookup function for the mode of an MMC boot source.
415 * @boot_device: ID of the device which the MMC driver wants to read
416 * from. Common values are e.g. BOOT_DEVICE_MMC1,
417 * BOOT_DEVICE_MMC2, BOOT_DEVICE_MMC2_2.
419 * This function should return one of MMCSD_MODE_FS, MMCSD_MODE_EMMCBOOT, or
420 * MMCSD_MODE_RAW for each MMC boot source which is defined for the target. The
421 * boot_device parameter tells which device the MMC driver is interested in.
423 * If not overridden, it is weakly defined in common/spl/spl_mmc.c.
425 * Note: It is important to use the boot_device parameter instead of e.g.
426 * spl_boot_device() as U-Boot is not always loaded from the same device as SPL.
428 u32 spl_mmc_boot_mode(struct mmc *mmc, const u32 boot_device);
431 * spl_mmc_boot_partition() - MMC partition to load U-Boot from.
432 * @boot_device: ID of the device which the MMC driver wants to load
435 * This function should return the partition number which the SPL
436 * should load U-Boot from (on the given boot_device) when
437 * CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION is set.
439 * If not overridden, it is weakly defined in common/spl/spl_mmc.c.
441 int spl_mmc_boot_partition(const u32 boot_device);
445 * default_spl_mmc_emmc_boot_partition() - eMMC boot partition to load U-Boot from.
446 * mmc: Pointer for the mmc device structure
448 * This function should return the eMMC boot partition number which
449 * the SPL should load U-Boot from (on the given boot_device).
451 int default_spl_mmc_emmc_boot_partition(struct mmc *mmc);
454 * spl_mmc_emmc_boot_partition() - eMMC boot partition to load U-Boot from.
455 * mmc: Pointer for the mmc device structure
457 * This function should return the eMMC boot partition number which
458 * the SPL should load U-Boot from (on the given boot_device).
460 * If not overridden, it is weakly defined in common/spl/spl_mmc.c
461 * and calls default_spl_mmc_emmc_boot_partition();
463 int spl_mmc_emmc_boot_partition(struct mmc *mmc);
465 void spl_set_bd(void);
468 * spl_set_header_raw_uboot() - Set up a standard SPL image structure
470 * This sets up the given spl_image which the standard values obtained from
471 * config options: CONFIG_SYS_MONITOR_LEN, CONFIG_SYS_UBOOT_START,
474 * @spl_image: Image description to set up
476 void spl_set_header_raw_uboot(struct spl_image_info *spl_image);
479 * spl_parse_image_header() - parse the image header and set up info
481 * This parses the legacy image header information at @header and sets up
482 * @spl_image according to what is found. If no image header is found, then
483 * a raw image or bootz is assumed. If CONFIG_SPL_PANIC_ON_RAW_IMAGE is
484 * enabled, then this causes a panic. If CONFIG_SPL_RAW_IMAGE_SUPPORT is not
485 * enabled then U-Boot gives up. Otherwise U-Boot sets up the image using
486 * spl_set_header_raw_uboot(), or possibly the bootz header.
488 * @spl_image: Image description to set up
489 * @header image header to parse
490 * Return: 0 if a header was correctly parsed, -ve on error
492 int spl_parse_image_header(struct spl_image_info *spl_image,
493 const struct spl_boot_device *bootdev,
494 const struct legacy_img_hdr *header);
496 void spl_board_prepare_for_linux(void);
499 * spl_board_prepare_for_optee() - Prepare board for an OPTEE payload
501 * Prepares the board for booting an OP-TEE payload. Initialization is platform
502 * specific, and may include configuring the TrustZone memory, and other
503 * initialization steps required by OP-TEE.
504 * Note that @fdt is not used directly by OP-TEE. OP-TEE passes this @fdt to
505 * its normal world target. This target is not guaranteed to be u-boot, so @fdt
506 * changes that would normally be done by u-boot should be done in this step.
508 * @fdt: Devicetree that will be passed on, or NULL
510 void spl_board_prepare_for_optee(void *fdt);
511 void spl_board_prepare_for_boot(void);
512 int spl_board_ubi_load_image(u32 boot_device);
513 int spl_board_boot_device(u32 boot_device);
516 * spl_board_loader_name() - Return a name for the loader
518 * This is a weak function which might be overridden by the board code. With
519 * that a board specific value for the device where the U-Boot will be loaded
520 * from can be set. By default it returns NULL.
522 * @boot_device: ID of the device which SPL wants to load U-Boot from.
524 const char *spl_board_loader_name(u32 boot_device);
527 * jump_to_image_linux() - Jump to a Linux kernel from SPL
529 * This jumps into a Linux kernel using the information in @spl_image.
531 * @spl_image: Image description to set up
533 void __noreturn jump_to_image_linux(struct spl_image_info *spl_image);
536 * jump_to_image_linux() - Jump to OP-TEE OS from SPL
538 * This jumps into OP-TEE OS using the information in @spl_image.
540 * @spl_image: Image description to set up
542 void __noreturn jump_to_image_optee(struct spl_image_info *spl_image);
545 * spl_start_uboot() - Check if SPL should start the kernel or U-Boot
547 * This is called by the various SPL loaders to determine whether the board
548 * wants to load the kernel or U-Boot. This function should be provided by
551 * Return: 0 if SPL should start the kernel, 1 if U-Boot must be started
553 int spl_start_uboot(void);
556 * spl_display_print() - Display a board-specific message in SPL
558 * If CONFIG_SPL_DISPLAY_PRINT is enabled, U-Boot will call this function
559 * immediately after displaying the SPL console banner ("U-Boot SPL ...").
560 * This function should be provided by the board.
562 void spl_display_print(void);
565 * struct spl_boot_device - Describes a boot device used by SPL
567 * @boot_device: A number indicating the BOOT_DEVICE type. There are various
568 * BOOT_DEVICE... #defines and enums in U-Boot and they are not consistently
570 * @boot_device_name: Named boot device, or NULL if none.
572 * Note: Additional fields can be added here, bearing in mind that SPL is
573 * size-sensitive and common fields will be present on all boards. This
574 * struct can also be used to return additional information about the load
575 * process if that becomes useful.
577 struct spl_boot_device {
579 const char *boot_device_name;
583 * Holds information about a way of loading an SPL image
585 * @name: User-friendly name for this method (e.g. "MMC")
586 * @boot_device: Boot device that this loader supports
587 * @load_image: Function to call to load image
589 struct spl_image_loader {
590 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
595 * load_image() - Load an SPL image
597 * @spl_image: place to put image information
598 * @bootdev: describes the boot device to load from
600 int (*load_image)(struct spl_image_info *spl_image,
601 struct spl_boot_device *bootdev);
604 /* Helper function for accessing the name */
605 static inline const char *spl_loader_name(const struct spl_image_loader *loader)
607 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
609 name = spl_board_loader_name(loader->boot_device);
610 return name ?: loader->name;
616 /* Declare an SPL image loader */
617 #define SPL_LOAD_IMAGE(__name) \
618 ll_entry_declare(struct spl_image_loader, __name, spl_image_loader)
621 * _priority is the priority of this method, 0 meaning it will be the top
622 * choice for this device, 9 meaning it is the bottom choice.
623 * _boot_device is the BOOT_DEVICE_... value
624 * _method is the load_image function to call
626 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
627 #define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \
628 SPL_LOAD_IMAGE(_boot_device ## _priority ## _method) = { \
630 .boot_device = _boot_device, \
631 .load_image = _method, \
634 #define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \
635 SPL_LOAD_IMAGE(_boot_device ## _priority ## _method) = { \
636 .boot_device = _boot_device, \
637 .load_image = _method, \
641 /* SPL FAT image functions */
642 int spl_load_image_fat(struct spl_image_info *spl_image,
643 struct spl_boot_device *bootdev,
644 struct blk_desc *block_dev, int partition,
645 const char *filename);
646 int spl_load_image_fat_os(struct spl_image_info *spl_image,
647 struct spl_boot_device *bootdev,
648 struct blk_desc *block_dev, int partition);
650 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image);
652 /* SPL EXT image functions */
653 int spl_load_image_ext(struct spl_image_info *spl_image,
654 struct spl_boot_device *bootdev,
655 struct blk_desc *block_dev, int partition,
656 const char *filename);
657 int spl_load_image_ext_os(struct spl_image_info *spl_image,
658 struct spl_boot_device *bootdev,
659 struct blk_desc *block_dev, int partition);
662 * spl_early_init() - Set up device tree and driver model in SPL if enabled
664 * Call this function in board_init_f() if you want to use device tree and
665 * driver model early, before board_init_r() is called.
667 * If this is not called, then driver model will be inactive in SPL's
668 * board_init_f(), and no device tree will be available.
670 int spl_early_init(void);
673 * spl_init() - Set up device tree and driver model in SPL if enabled
675 * You can optionally call spl_early_init(), then optionally call spl_init().
676 * This function will be called from board_init_r() if not called earlier.
678 * Both spl_early_init() and spl_init() perform a similar function except that
679 * the latter will not set up the malloc() area if
680 * CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN is enabled, since it is assumed to
681 * already be done by a calll to spl_relocate_stack_gd() before board_init_r()
684 * This function will be called from board_init_r() if not called earlier.
686 * If this is not called, then driver model will be inactive in SPL's
687 * board_init_f(), and no device tree will be available.
691 #ifdef CONFIG_SPL_BOARD_INIT
692 void spl_board_init(void);
696 * spl_was_boot_source() - check if U-Boot booted from SPL
698 * This will normally be true, but if U-Boot jumps to second U-Boot, it will
699 * be false. This should be implemented by board-specific code.
701 * Return: true if U-Boot booted from SPL, else false
703 bool spl_was_boot_source(void);
706 * spl_dfu_cmd- run dfu command with chosen mmc device interface
707 * @param usb_index - usb controller number
708 * @param mmc_dev - mmc device nubmer
710 * Return: 0 on success, otherwise error code
712 int spl_dfu_cmd(int usbctrl, char *dfu_alt_info, char *interface, char *devstr);
714 int spl_mmc_load_image(struct spl_image_info *spl_image,
715 struct spl_boot_device *bootdev);
718 * spl_mmc_load() - Load an image file from MMC/SD media
720 * @param spl_image Image data filled in by loading process
721 * @param bootdev Describes which device to load from
722 * @param filename Name of file to load (in FS mode)
723 * @param raw_part Partition to load from (in RAW mode)
724 * @param raw_sect Sector to load from (in RAW mode)
726 * Return: 0 on success, otherwise error code
728 int spl_mmc_load(struct spl_image_info *spl_image,
729 struct spl_boot_device *bootdev,
730 const char *filename,
732 unsigned long raw_sect);
735 * spl_usb_load() - Load an image file from USB mass storage
737 * @param spl_image Image data filled in by loading process
738 * @param bootdev Describes which device to load from
739 * @param raw_part Fat partition to load from
740 * @param filename Name of file to load
742 * Return: 0 on success, otherwise error code
744 int spl_usb_load(struct spl_image_info *spl_image,
745 struct spl_boot_device *bootdev,
746 int partition, const char *filename);
748 int spl_ymodem_load_image(struct spl_image_info *spl_image,
749 struct spl_boot_device *bootdev);
752 * spl_invoke_atf - boot using an ARM trusted firmware image
754 void spl_invoke_atf(struct spl_image_info *spl_image);
757 * bl2_plat_get_bl31_params() - return params for bl31.
758 * @bl32_entry: address of BL32 executable (secure)
759 * @bl33_entry: address of BL33 executable (non secure)
760 * @fdt_addr: address of Flat Device Tree
762 * This is a weak function which might be overridden by the board code. By
763 * default it will just call bl2_plat_get_bl31_params_default().
765 * If you just want to manipulate or add some parameters, you can override
766 * this function, call bl2_plat_get_bl31_params_default and operate on the
767 * returned bl31 params.
769 * Return: bl31 params structure pointer
771 struct bl31_params *bl2_plat_get_bl31_params(uintptr_t bl32_entry,
772 uintptr_t bl33_entry,
776 * bl2_plat_get_bl31_params_default() - prepare params for bl31.
777 * @bl32_entry: address of BL32 executable (secure)
778 * @bl33_entry: address of BL33 executable (non secure)
779 * @fdt_addr: address of Flat Device Tree
781 * This is the default implementation of bl2_plat_get_bl31_params(). It assigns
782 * a pointer to the memory that the platform has kept aside to pass platform
783 * specific and trusted firmware related information to BL31. This memory is
784 * allocated by allocating memory to bl2_to_bl31_params_mem structure which is
785 * a superset of all the structure whose information is passed to BL31
787 * NOTE: The memory is statically allocated, thus this function should be
788 * called only once. All subsequent calls will overwrite any changes.
790 * Return: bl31 params structure pointer
792 struct bl31_params *bl2_plat_get_bl31_params_default(uintptr_t bl32_entry,
793 uintptr_t bl33_entry,
797 * bl2_plat_get_bl31_params_v2() - return params for bl31
798 * @bl32_entry: address of BL32 executable (secure)
799 * @bl33_entry: address of BL33 executable (non secure)
800 * @fdt_addr: address of Flat Device Tree
802 * This function does the same as bl2_plat_get_bl31_params() except that is is
803 * used for the new LOAD_IMAGE_V2 option, which uses a slightly different
804 * method to pass the parameters.
806 * Return: bl31 params structure pointer
808 struct bl_params *bl2_plat_get_bl31_params_v2(uintptr_t bl32_entry,
809 uintptr_t bl33_entry,
813 * bl2_plat_get_bl31_params_v2_default() - prepare params for bl31.
814 * @bl32_entry: address of BL32 executable (secure)
815 * @bl33_entry: address of BL33 executable (non secure)
816 * @fdt_addr: address of Flat Device Tree
818 * This is the default implementation of bl2_plat_get_bl31_params_v2(). It
819 * prepares the linked list of the bl31 params, populates the image types and
820 * set the entry points for bl32 and bl33 (if available).
822 * NOTE: The memory is statically allocated, thus this function should be
823 * called only once. All subsequent calls will overwrite any changes.
825 * Return: bl31 params structure pointer
827 struct bl_params *bl2_plat_get_bl31_params_v2_default(uintptr_t bl32_entry,
828 uintptr_t bl33_entry,
831 * spl_optee_entry - entry function for optee
833 * args defind in op-tee project
834 * https://github.com/OP-TEE/optee_os/
835 * core/arch/arm/kernel/generic_entry_a32.S
837 * @arg1: (ARMv7 standard bootarg #1)
838 * @arg2: device tree address, (ARMv7 standard bootarg #2)
839 * @arg3: non-secure entry address (ARMv7 bootarg #0)
841 void __noreturn spl_optee_entry(void *arg0, void *arg1, void *arg2, void *arg3);
844 * spl_invoke_opensbi - boot using a RISC-V OpenSBI image
846 void spl_invoke_opensbi(struct spl_image_info *spl_image);
849 * board_return_to_bootrom - allow for boards to continue with the boot ROM
851 * If a board (e.g. the Rockchip RK3368 boards) provide some
852 * supporting functionality for SPL in their boot ROM and the SPL
853 * stage wants to return to the ROM code to continue booting, boards
854 * can implement 'board_return_to_bootrom'.
856 int board_return_to_bootrom(struct spl_image_info *spl_image,
857 struct spl_boot_device *bootdev);
860 * board_spl_fit_post_load - allow process images after loading finished
861 * @fit: Pointer to a valid Flattened Image Tree blob
863 void board_spl_fit_post_load(const void *fit);
866 * board_spl_fit_size_align - specific size align before processing payload
869 ulong board_spl_fit_size_align(ulong size);
872 * spl_perform_fixups() - arch/board-specific callback before processing
875 void spl_perform_fixups(struct spl_image_info *spl_image);
878 * spl_get_load_buffer() - get buffer for loading partial image data
880 * Returns memory area which can be populated by partial image data,
881 * ie. uImage or fitImage header.
883 struct legacy_img_hdr *spl_get_load_buffer(ssize_t offset, size_t size);
885 void spl_save_restore_data(void);