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>
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
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 ""
231 struct spl_image_info {
235 uintptr_t entry_point;
236 #if CONFIG_IS_ENABLED(LOAD_FIT) || CONFIG_IS_ENABLED(LOAD_FIT_FULL)
244 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
252 * Information required to load data from a device
254 * @dev: Pointer to the device, e.g. struct mmc *
255 * @priv: Private data for the device
256 * @bl_len: Block length for reading in bytes
257 * @filename: Name of the fit image file.
258 * @read: Function to call to read from the device
260 struct spl_load_info {
264 const char *filename;
266 * read() - Read from device
268 * @load: Information about the load state
269 * @sector: Sector number to read from (each @load->bl_len bytes)
270 * @count: Number of sectors to read
271 * @buf: Buffer to read into
272 * @return number of sectors read, 0 on error
274 ulong (*read)(struct spl_load_info *load, ulong sector, ulong count,
279 * We need to know the position of U-Boot in memory so we can jump to it. We
280 * allow any U-Boot binary to be used (u-boot.bin, u-boot-nodtb.bin,
281 * u-boot.img), hence the '_any'. These is no checking here that the correct
282 * image is found. For example if u-boot.img is used we don't check that
283 * spl_parse_image_header() can parse a valid header.
285 * Similarly for SPL, so that TPL can jump to SPL.
287 binman_sym_extern(ulong, u_boot_any, image_pos);
288 binman_sym_extern(ulong, u_boot_any, size);
289 binman_sym_extern(ulong, u_boot_spl, image_pos);
290 binman_sym_extern(ulong, u_boot_spl, size);
291 binman_sym_extern(ulong, u_boot_vpl, image_pos);
292 binman_sym_extern(ulong, u_boot_vpl, size);
295 * spl_get_image_pos() - get the image position of the next phase
297 * This returns the image position to use to load the next phase of U-Boot
299 ulong spl_get_image_pos(void);
302 * spl_get_image_size() - get the size of the next phase
304 * This returns the size to use to load the next phase of U-Boot
306 ulong spl_get_image_size(void);
309 * spl_get_image_text_base() - get the text base of the next phase
311 * This returns the address that the next stage is linked to run at, i.e.
312 * CONFIG_SPL_TEXT_BASE or CONFIG_SYS_TEXT_BASE
314 * Return: text-base address
316 ulong spl_get_image_text_base(void);
319 * spl_load_simple_fit_skip_processing() - Hook to allow skipping the FIT
320 * image processing during spl_load_simple_fit().
322 * Return true to skip FIT processing, false to preserve the full code flow
323 * of spl_load_simple_fit().
325 bool spl_load_simple_fit_skip_processing(void);
328 * spl_load_simple_fit_fix_load() - Hook to make fixes
329 * after fit image header is loaded
331 * Returns pointer to fit
333 void *spl_load_simple_fit_fix_load(const void *fit);
336 * spl_load_simple_fit() - Loads a fit image from a device.
337 * @spl_image: Image description to set up
338 * @info: Structure containing the information required to load data.
339 * @sector: Sector number where FIT image is located in the device
340 * @fdt: Pointer to the copied FIT header.
342 * Reads the FIT image @sector in the device. Loads u-boot image to
343 * specified load address and copies the dtb to end of u-boot image.
344 * Returns 0 on success.
346 int spl_load_simple_fit(struct spl_image_info *spl_image,
347 struct spl_load_info *info, ulong sector, void *fdt);
349 #define SPL_COPY_PAYLOAD_ONLY 1
350 #define SPL_FIT_FOUND 2
353 * spl_load_legacy_img() - Loads a legacy image from a device.
354 * @spl_image: Image description to set up
355 * @load: Structure containing the information required to load data.
356 * @header: Pointer to image header (including appended image)
358 * Reads an legacy image from the device. Loads u-boot image to
359 * specified load address.
360 * Returns 0 on success.
362 int spl_load_legacy_img(struct spl_image_info *spl_image,
363 struct spl_boot_device *bootdev,
364 struct spl_load_info *load, ulong header);
367 * spl_load_imx_container() - Loads a imx container image from a device.
368 * @spl_image: Image description to set up
369 * @info: Structure containing the information required to load data.
370 * @sector: Sector number where container image is located in the device
372 * Reads the container image @sector in the device. Loads u-boot image to
373 * specified load address.
375 int spl_load_imx_container(struct spl_image_info *spl_image,
376 struct spl_load_info *info, ulong sector);
378 /* SPL common functions */
379 void preloader_console_init(void);
380 u32 spl_boot_device(void);
383 * spl_spi_boot_bus() - Lookup function for the SPI boot bus source.
385 * This function returns the SF bus to load from.
386 * If not overridden, it is weakly defined in common/spl/spl_spi.c.
388 u32 spl_spi_boot_bus(void);
391 * spl_spi_boot_cs() - Lookup function for the SPI boot CS source.
393 * This function returns the SF CS to load from.
394 * If not overridden, it is weakly defined in common/spl/spl_spi.c.
396 u32 spl_spi_boot_cs(void);
399 * spl_mmc_boot_mode() - Lookup function for the mode of an MMC boot source.
400 * @boot_device: ID of the device which the MMC driver wants to read
401 * from. Common values are e.g. BOOT_DEVICE_MMC1,
402 * BOOT_DEVICE_MMC2, BOOT_DEVICE_MMC2_2.
404 * This function should return one of MMCSD_MODE_FS, MMCSD_MODE_EMMCBOOT, or
405 * MMCSD_MODE_RAW for each MMC boot source which is defined for the target. The
406 * boot_device parameter tells which device the MMC driver is interested in.
408 * If not overridden, it is weakly defined in common/spl/spl_mmc.c.
410 * Note: It is important to use the boot_device parameter instead of e.g.
411 * spl_boot_device() as U-Boot is not always loaded from the same device as SPL.
413 u32 spl_mmc_boot_mode(struct mmc *mmc, const u32 boot_device);
416 * spl_mmc_boot_partition() - MMC partition to load U-Boot from.
417 * @boot_device: ID of the device which the MMC driver wants to load
420 * This function should return the partition number which the SPL
421 * should load U-Boot from (on the given boot_device) when
422 * CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION is set.
424 * If not overridden, it is weakly defined in common/spl/spl_mmc.c.
426 int spl_mmc_boot_partition(const u32 boot_device);
430 * default_spl_mmc_emmc_boot_partition() - eMMC boot partition to load U-Boot from.
431 * mmc: Pointer for the mmc device structure
433 * This function should return the eMMC boot partition number which
434 * the SPL should load U-Boot from (on the given boot_device).
436 int default_spl_mmc_emmc_boot_partition(struct mmc *mmc);
439 * spl_mmc_emmc_boot_partition() - eMMC boot partition to load U-Boot from.
440 * mmc: Pointer for the mmc device structure
442 * This function should return the eMMC boot partition number which
443 * the SPL should load U-Boot from (on the given boot_device).
445 * If not overridden, it is weakly defined in common/spl/spl_mmc.c
446 * and calls default_spl_mmc_emmc_boot_partition();
448 int spl_mmc_emmc_boot_partition(struct mmc *mmc);
450 void spl_set_bd(void);
453 * spl_set_header_raw_uboot() - Set up a standard SPL image structure
455 * This sets up the given spl_image which the standard values obtained from
456 * config options: CONFIG_SYS_MONITOR_LEN, CONFIG_SYS_UBOOT_START,
457 * CONFIG_SYS_TEXT_BASE.
459 * @spl_image: Image description to set up
461 void spl_set_header_raw_uboot(struct spl_image_info *spl_image);
464 * spl_parse_image_header() - parse the image header and set up info
466 * This parses the legacy image header information at @header and sets up
467 * @spl_image according to what is found. If no image header is found, then
468 * a raw image or bootz is assumed. If CONFIG_SPL_PANIC_ON_RAW_IMAGE is
469 * enabled, then this causes a panic. If CONFIG_SPL_RAW_IMAGE_SUPPORT is not
470 * enabled then U-Boot gives up. Otherwise U-Boot sets up the image using
471 * spl_set_header_raw_uboot(), or possibly the bootz header.
473 * @spl_image: Image description to set up
474 * @header image header to parse
475 * Return: 0 if a header was correctly parsed, -ve on error
477 int spl_parse_image_header(struct spl_image_info *spl_image,
478 const struct spl_boot_device *bootdev,
479 const struct image_header *header);
481 void spl_board_prepare_for_linux(void);
484 * spl_board_prepare_for_optee() - Prepare board for an OPTEE payload
486 * Prepares the board for booting an OP-TEE payload. Initialization is platform
487 * specific, and may include configuring the TrustZone memory, and other
488 * initialization steps required by OP-TEE.
489 * Note that @fdt is not used directly by OP-TEE. OP-TEE passes this @fdt to
490 * its normal world target. This target is not guaranteed to be u-boot, so @fdt
491 * changes that would normally be done by u-boot should be done in this step.
493 * @fdt: Devicetree that will be passed on, or NULL
495 void spl_board_prepare_for_optee(void *fdt);
496 void spl_board_prepare_for_boot(void);
497 int spl_board_ubi_load_image(u32 boot_device);
498 int spl_board_boot_device(u32 boot_device);
501 * spl_board_loader_name() - Return a name for the loader
503 * This is a weak function which might be overridden by the board code. With
504 * that a board specific value for the device where the U-Boot will be loaded
505 * from can be set. By default it returns NULL.
507 * @boot_device: ID of the device which SPL wants to load U-Boot from.
509 const char *spl_board_loader_name(u32 boot_device);
512 * jump_to_image_linux() - Jump to a Linux kernel from SPL
514 * This jumps into a Linux kernel using the information in @spl_image.
516 * @spl_image: Image description to set up
518 void __noreturn jump_to_image_linux(struct spl_image_info *spl_image);
521 * jump_to_image_linux() - Jump to OP-TEE OS from SPL
523 * This jumps into OP-TEE OS using the information in @spl_image.
525 * @spl_image: Image description to set up
527 void __noreturn jump_to_image_optee(struct spl_image_info *spl_image);
530 * spl_start_uboot() - Check if SPL should start the kernel or U-Boot
532 * This is called by the various SPL loaders to determine whether the board
533 * wants to load the kernel or U-Boot. This function should be provided by
536 * Return: 0 if SPL should start the kernel, 1 if U-Boot must be started
538 int spl_start_uboot(void);
541 * spl_display_print() - Display a board-specific message in SPL
543 * If CONFIG_SPL_DISPLAY_PRINT is enabled, U-Boot will call this function
544 * immediately after displaying the SPL console banner ("U-Boot SPL ...").
545 * This function should be provided by the board.
547 void spl_display_print(void);
550 * struct spl_boot_device - Describes a boot device used by SPL
552 * @boot_device: A number indicating the BOOT_DEVICE type. There are various
553 * BOOT_DEVICE... #defines and enums in U-Boot and they are not consistently
555 * @boot_device_name: Named boot device, or NULL if none.
557 * Note: Additional fields can be added here, bearing in mind that SPL is
558 * size-sensitive and common fields will be present on all boards. This
559 * struct can also be used to return additional information about the load
560 * process if that becomes useful.
562 struct spl_boot_device {
564 const char *boot_device_name;
568 * Holds information about a way of loading an SPL image
570 * @name: User-friendly name for this method (e.g. "MMC")
571 * @boot_device: Boot device that this loader supports
572 * @load_image: Function to call to load image
574 struct spl_image_loader {
575 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
580 * load_image() - Load an SPL image
582 * @spl_image: place to put image information
583 * @bootdev: describes the boot device to load from
585 int (*load_image)(struct spl_image_info *spl_image,
586 struct spl_boot_device *bootdev);
589 /* Helper function for accessing the name */
590 static inline const char *spl_loader_name(const struct spl_image_loader *loader)
592 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
594 name = spl_board_loader_name(loader->boot_device);
595 return name ?: loader->name;
601 /* Declare an SPL image loader */
602 #define SPL_LOAD_IMAGE(__name) \
603 ll_entry_declare(struct spl_image_loader, __name, spl_image_loader)
606 * _priority is the priority of this method, 0 meaning it will be the top
607 * choice for this device, 9 meaning it is the bottom choice.
608 * _boot_device is the BOOT_DEVICE_... value
609 * _method is the load_image function to call
611 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
612 #define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \
613 SPL_LOAD_IMAGE(_boot_device ## _priority ## _method) = { \
615 .boot_device = _boot_device, \
616 .load_image = _method, \
619 #define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \
620 SPL_LOAD_IMAGE(_boot_device ## _priority ## _method) = { \
621 .boot_device = _boot_device, \
622 .load_image = _method, \
626 /* SPL FAT image functions */
627 int spl_load_image_fat(struct spl_image_info *spl_image,
628 struct spl_boot_device *bootdev,
629 struct blk_desc *block_dev, int partition,
630 const char *filename);
631 int spl_load_image_fat_os(struct spl_image_info *spl_image,
632 struct spl_boot_device *bootdev,
633 struct blk_desc *block_dev, int partition);
635 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image);
637 /* SPL EXT image functions */
638 int spl_load_image_ext(struct spl_image_info *spl_image,
639 struct spl_boot_device *bootdev,
640 struct blk_desc *block_dev, int partition,
641 const char *filename);
642 int spl_load_image_ext_os(struct spl_image_info *spl_image,
643 struct spl_boot_device *bootdev,
644 struct blk_desc *block_dev, int partition);
647 * spl_early_init() - Set up device tree and driver model in SPL if enabled
649 * Call this function in board_init_f() if you want to use device tree and
650 * driver model early, before board_init_r() is called.
652 * If this is not called, then driver model will be inactive in SPL's
653 * board_init_f(), and no device tree will be available.
655 int spl_early_init(void);
658 * spl_init() - Set up device tree and driver model in SPL if enabled
660 * You can optionally call spl_early_init(), then optionally call spl_init().
661 * This function will be called from board_init_r() if not called earlier.
663 * Both spl_early_init() and spl_init() perform a similar function except that
664 * the latter will not set up the malloc() area if
665 * CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN is enabled, since it is assumed to
666 * already be done by a calll to spl_relocate_stack_gd() before board_init_r()
669 * This function will be called from board_init_r() if not called earlier.
671 * If this is not called, then driver model will be inactive in SPL's
672 * board_init_f(), and no device tree will be available.
676 #ifdef CONFIG_SPL_BOARD_INIT
677 void spl_board_init(void);
681 * spl_was_boot_source() - check if U-Boot booted from SPL
683 * This will normally be true, but if U-Boot jumps to second U-Boot, it will
684 * be false. This should be implemented by board-specific code.
686 * Return: true if U-Boot booted from SPL, else false
688 bool spl_was_boot_source(void);
691 * spl_dfu_cmd- run dfu command with chosen mmc device interface
692 * @param usb_index - usb controller number
693 * @param mmc_dev - mmc device nubmer
695 * Return: 0 on success, otherwise error code
697 int spl_dfu_cmd(int usbctrl, char *dfu_alt_info, char *interface, char *devstr);
699 int spl_mmc_load_image(struct spl_image_info *spl_image,
700 struct spl_boot_device *bootdev);
703 * spl_mmc_load() - Load an image file from MMC/SD media
705 * @param spl_image Image data filled in by loading process
706 * @param bootdev Describes which device to load from
707 * @param filename Name of file to load (in FS mode)
708 * @param raw_part Partition to load from (in RAW mode)
709 * @param raw_sect Sector to load from (in RAW mode)
711 * Return: 0 on success, otherwise error code
713 int spl_mmc_load(struct spl_image_info *spl_image,
714 struct spl_boot_device *bootdev,
715 const char *filename,
717 unsigned long raw_sect);
720 * spl_usb_load() - Load an image file from USB mass storage
722 * @param spl_image Image data filled in by loading process
723 * @param bootdev Describes which device to load from
724 * @param raw_part Fat partition to load from
725 * @param filename Name of file to load
727 * Return: 0 on success, otherwise error code
729 int spl_usb_load(struct spl_image_info *spl_image,
730 struct spl_boot_device *bootdev,
731 int partition, const char *filename);
733 int spl_ymodem_load_image(struct spl_image_info *spl_image,
734 struct spl_boot_device *bootdev);
737 * spl_invoke_atf - boot using an ARM trusted firmware image
739 void spl_invoke_atf(struct spl_image_info *spl_image);
742 * bl2_plat_get_bl31_params() - return params for bl31.
743 * @bl32_entry: address of BL32 executable (secure)
744 * @bl33_entry: address of BL33 executable (non secure)
745 * @fdt_addr: address of Flat Device Tree
747 * This is a weak function which might be overridden by the board code. By
748 * default it will just call bl2_plat_get_bl31_params_default().
750 * If you just want to manipulate or add some parameters, you can override
751 * this function, call bl2_plat_get_bl31_params_default and operate on the
752 * returned bl31 params.
754 * Return: bl31 params structure pointer
756 struct bl31_params *bl2_plat_get_bl31_params(uintptr_t bl32_entry,
757 uintptr_t bl33_entry,
761 * bl2_plat_get_bl31_params_default() - prepare params for bl31.
762 * @bl32_entry: address of BL32 executable (secure)
763 * @bl33_entry: address of BL33 executable (non secure)
764 * @fdt_addr: address of Flat Device Tree
766 * This is the default implementation of bl2_plat_get_bl31_params(). It assigns
767 * a pointer to the memory that the platform has kept aside to pass platform
768 * specific and trusted firmware related information to BL31. This memory is
769 * allocated by allocating memory to bl2_to_bl31_params_mem structure which is
770 * a superset of all the structure whose information is passed to BL31
772 * NOTE: The memory is statically allocated, thus this function should be
773 * called only once. All subsequent calls will overwrite any changes.
775 * Return: bl31 params structure pointer
777 struct bl31_params *bl2_plat_get_bl31_params_default(uintptr_t bl32_entry,
778 uintptr_t bl33_entry,
782 * bl2_plat_get_bl31_params_v2() - return params for bl31
783 * @bl32_entry: address of BL32 executable (secure)
784 * @bl33_entry: address of BL33 executable (non secure)
785 * @fdt_addr: address of Flat Device Tree
787 * This function does the same as bl2_plat_get_bl31_params() except that is is
788 * used for the new LOAD_IMAGE_V2 option, which uses a slightly different
789 * method to pass the parameters.
791 * Return: bl31 params structure pointer
793 struct bl_params *bl2_plat_get_bl31_params_v2(uintptr_t bl32_entry,
794 uintptr_t bl33_entry,
798 * bl2_plat_get_bl31_params_v2_default() - prepare params for bl31.
799 * @bl32_entry: address of BL32 executable (secure)
800 * @bl33_entry: address of BL33 executable (non secure)
801 * @fdt_addr: address of Flat Device Tree
803 * This is the default implementation of bl2_plat_get_bl31_params_v2(). It
804 * prepares the linked list of the bl31 params, populates the image types and
805 * set the entry points for bl32 and bl33 (if available).
807 * NOTE: The memory is statically allocated, thus this function should be
808 * called only once. All subsequent calls will overwrite any changes.
810 * Return: bl31 params structure pointer
812 struct bl_params *bl2_plat_get_bl31_params_v2_default(uintptr_t bl32_entry,
813 uintptr_t bl33_entry,
816 * spl_optee_entry - entry function for optee
818 * args defind in op-tee project
819 * https://github.com/OP-TEE/optee_os/
820 * core/arch/arm/kernel/generic_entry_a32.S
822 * @arg1: (ARMv7 standard bootarg #1)
823 * @arg2: device tree address, (ARMv7 standard bootarg #2)
824 * @arg3: non-secure entry address (ARMv7 bootarg #0)
826 void __noreturn spl_optee_entry(void *arg0, void *arg1, void *arg2, void *arg3);
829 * spl_invoke_opensbi - boot using a RISC-V OpenSBI image
831 void spl_invoke_opensbi(struct spl_image_info *spl_image);
834 * board_return_to_bootrom - allow for boards to continue with the boot ROM
836 * If a board (e.g. the Rockchip RK3368 boards) provide some
837 * supporting functionality for SPL in their boot ROM and the SPL
838 * stage wants to return to the ROM code to continue booting, boards
839 * can implement 'board_return_to_bootrom'.
841 int board_return_to_bootrom(struct spl_image_info *spl_image,
842 struct spl_boot_device *bootdev);
845 * board_spl_fit_post_load - allow process images after loading finished
846 * @fit: Pointer to a valid Flattened Image Tree blob
848 void board_spl_fit_post_load(const void *fit);
851 * board_spl_fit_size_align - specific size align before processing payload
854 ulong board_spl_fit_size_align(ulong size);
857 * spl_perform_fixups() - arch/board-specific callback before processing
860 void spl_perform_fixups(struct spl_image_info *spl_image);
863 * spl_get_load_buffer() - get buffer for loading partial image data
865 * Returns memory area which can be populated by partial image data,
866 * ie. uImage or fitImage header.
868 struct image_header *spl_get_load_buffer(ssize_t offset, size_t size);
870 void spl_save_restore_data(void);