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;
37 * u_boot_first_phase() - check if this is the first U-Boot phase
39 * U-Boot has up to three phases: TPL, SPL and U-Boot proper. Depending on the
40 * build flags we can determine whether the current build is for the first
41 * phase of U-Boot or not. If there is no SPL, then this is U-Boot proper. If
42 * there is SPL but no TPL, the the first phase is SPL. If there is TPL, then
43 * it is the first phase.
45 * @returns true if this is the first phase of U-Boot
48 static inline bool u_boot_first_phase(void)
50 if (IS_ENABLED(CONFIG_TPL)) {
51 if (IS_ENABLED(CONFIG_TPL_BUILD))
53 } else if (IS_ENABLED(CONFIG_SPL)) {
54 if (IS_ENABLED(CONFIG_SPL_BUILD))
64 PHASE_NONE, /* Invalid phase, signifying before U-Boot */
65 PHASE_TPL, /* Running in TPL */
66 PHASE_VPL, /* Running in VPL */
67 PHASE_SPL, /* Running in SPL */
68 PHASE_BOARD_F, /* Running in U-Boot before relocation */
69 PHASE_BOARD_R, /* Running in U-Boot after relocation */
75 * spl_phase() - Find out the phase of U-Boot
77 * This can be used to avoid #ifdef logic and use if() instead.
79 * For example, to include code only in TPL, you might do:
81 * #ifdef CONFIG_TPL_BUILD
85 * but with this you can use:
87 * if (spl_phase() == PHASE_TPL) {
91 * To include code only in SPL, you might do:
93 * #if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD)
97 * but with this you can use:
99 * if (spl_phase() == PHASE_SPL) {
103 * To include code only in U-Boot proper, you might do:
105 * #ifndef CONFIG_SPL_BUILD
109 * but with this you can use:
111 * if (spl_phase() == PHASE_BOARD_F) {
115 * Return: U-Boot phase
117 static inline enum u_boot_phase spl_phase(void)
119 #ifdef CONFIG_TPL_BUILD
121 #elif defined(CONFIG_VPL_BUILD)
123 #elif defined(CONFIG_SPL_BUILD)
126 DECLARE_GLOBAL_DATA_PTR;
128 if (!(gd->flags & GD_FLG_RELOC))
129 return PHASE_BOARD_F;
131 return PHASE_BOARD_R;
136 * spl_prev_phase() - Figure out the previous U-Boot phase
138 * Return: the previous phase from this one, e.g. if called in SPL this returns
139 * PHASE_TPL, if TPL is enabled
141 static inline enum u_boot_phase spl_prev_phase(void)
143 #ifdef CONFIG_TPL_BUILD
145 #elif defined(CONFIG_VPL_BUILD)
146 return PHASE_TPL; /* VPL requires TPL */
147 #elif defined(CONFIG_SPL_BUILD)
148 return IS_ENABLED(CONFIG_VPL) ? PHASE_VPL :
149 IS_ENABLED(CONFIG_TPL) ? PHASE_TPL :
152 return IS_ENABLED(CONFIG_SPL) ? PHASE_SPL :
158 * spl_next_phase() - Figure out the next U-Boot phase
160 * Return: the next phase from this one, e.g. if called in TPL this returns
163 static inline enum u_boot_phase spl_next_phase(void)
165 #ifdef CONFIG_TPL_BUILD
166 return IS_ENABLED(CONFIG_VPL) ? PHASE_VPL : PHASE_SPL;
167 #elif defined(CONFIG_VPL_BUILD)
170 return PHASE_BOARD_F;
175 * spl_phase_name() - Get the name of the current phase
179 static inline const char *spl_phase_name(enum u_boot_phase phase)
197 * spl_phase_prefix() - Get the prefix of the current phase
199 * @phase: Phase to look up
200 * Return: phase prefix ("spl", "tpl", etc.)
202 static inline const char *spl_phase_prefix(enum u_boot_phase phase)
219 /* A string name for SPL or TPL */
220 #ifdef CONFIG_SPL_BUILD
221 # ifdef CONFIG_TPL_BUILD
222 # define SPL_TPL_NAME "TPL"
223 # elif defined(CONFIG_VPL_BUILD)
224 # define SPL_TPL_NAME "VPL"
226 # define SPL_TPL_NAME "SPL"
228 # define SPL_TPL_PROMPT SPL_TPL_NAME ": "
230 # define SPL_TPL_NAME ""
231 # define SPL_TPL_PROMPT ""
235 * enum spl_sandbox_flags - flags for sandbox's use of spl_image_info->flags
237 * @SPL_SANDBOXF_ARG_IS_FNAME: arg is the filename to jump to (default)
238 * @SPL_SANDBOXF_ARG_IS_BUF: arg is the containing image to jump to, @offset is
239 * the start offset within the image, @size is the size of the image
241 enum spl_sandbox_flags {
242 SPL_SANDBOXF_ARG_IS_FNAME = 0,
243 SPL_SANDBOXF_ARG_IS_BUF,
246 struct spl_image_info {
250 uintptr_t entry_point;
251 #if CONFIG_IS_ENABLED(LOAD_FIT) || CONFIG_IS_ENABLED(LOAD_FIT_FULL)
259 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
267 * Information required to load data from a device
269 * @dev: Pointer to the device, e.g. struct mmc *
270 * @priv: Private data for the device
271 * @bl_len: Block length for reading in bytes
272 * @filename: Name of the fit image file.
273 * @read: Function to call to read from the device
275 struct spl_load_info {
279 const char *filename;
281 * read() - Read from device
283 * @load: Information about the load state
284 * @sector: Sector number to read from (each @load->bl_len bytes)
285 * @count: Number of sectors to read
286 * @buf: Buffer to read into
287 * @return number of sectors read, 0 on error
289 ulong (*read)(struct spl_load_info *load, ulong sector, ulong count,
294 * We need to know the position of U-Boot in memory so we can jump to it. We
295 * allow any U-Boot binary to be used (u-boot.bin, u-boot-nodtb.bin,
296 * u-boot.img), hence the '_any'. These is no checking here that the correct
297 * image is found. For example if u-boot.img is used we don't check that
298 * spl_parse_image_header() can parse a valid header.
300 * Similarly for SPL, so that TPL can jump to SPL.
302 binman_sym_extern(ulong, u_boot_any, image_pos);
303 binman_sym_extern(ulong, u_boot_any, size);
304 binman_sym_extern(ulong, u_boot_spl_any, image_pos);
305 binman_sym_extern(ulong, u_boot_spl_any, size);
306 binman_sym_extern(ulong, u_boot_vpl_any, image_pos);
307 binman_sym_extern(ulong, u_boot_vpl_any, size);
310 * spl_get_image_pos() - get the image position of the next phase
312 * This returns the image position to use to load the next phase of U-Boot
314 ulong spl_get_image_pos(void);
317 * spl_get_image_size() - get the size of the next phase
319 * This returns the size to use to load the next phase of U-Boot
321 ulong spl_get_image_size(void);
324 * spl_get_image_text_base() - get the text base of the next phase
326 * This returns the address that the next stage is linked to run at, i.e.
327 * CONFIG_SPL_TEXT_BASE or CONFIG_TEXT_BASE
329 * Return: text-base address
331 ulong spl_get_image_text_base(void);
334 * spl_load_simple_fit_skip_processing() - Hook to allow skipping the FIT
335 * image processing during spl_load_simple_fit().
337 * Return true to skip FIT processing, false to preserve the full code flow
338 * of spl_load_simple_fit().
340 bool spl_load_simple_fit_skip_processing(void);
343 * spl_load_simple_fit_fix_load() - Hook to make fixes
344 * after fit image header is loaded
346 * Returns pointer to fit
348 void *spl_load_simple_fit_fix_load(const void *fit);
351 * spl_load_simple_fit() - Loads a fit image from a device.
352 * @spl_image: Image description to set up
353 * @info: Structure containing the information required to load data.
354 * @sector: Sector number where FIT image is located in the device
355 * @fdt: Pointer to the copied FIT header.
357 * Reads the FIT image @sector in the device. Loads u-boot image to
358 * specified load address and copies the dtb to end of u-boot image.
359 * Returns 0 on success.
361 int spl_load_simple_fit(struct spl_image_info *spl_image,
362 struct spl_load_info *info, ulong sector, void *fdt);
364 #define SPL_COPY_PAYLOAD_ONLY 1
365 #define SPL_FIT_FOUND 2
368 * spl_load_legacy_img() - Loads a legacy image from a device.
369 * @spl_image: Image description to set up
370 * @load: Structure containing the information required to load data.
371 * @offset: Pointer to image
372 * @hdr: Pointer to image header
374 * Reads an legacy image from the device. Loads u-boot image to
375 * specified load address.
376 * Returns 0 on success.
378 int spl_load_legacy_img(struct spl_image_info *spl_image,
379 struct spl_boot_device *bootdev,
380 struct spl_load_info *load, ulong offset,
381 struct legacy_img_hdr *hdr);
385 * spl_load_imx_container() - Loads a imx container image from a device.
386 * @spl_image: Image description to set up
387 * @info: Structure containing the information required to load data.
388 * @sector: Sector number where container image is located in the device
390 * Reads the container image @sector in the device. Loads u-boot image to
391 * specified load address.
393 int spl_load_imx_container(struct spl_image_info *spl_image,
394 struct spl_load_info *info, ulong sector);
396 /* SPL common functions */
397 void preloader_console_init(void);
398 u32 spl_boot_device(void);
401 * spl_spi_boot_bus() - Lookup function for the SPI boot bus source.
403 * This function returns the SF bus to load from.
404 * If not overridden, it is weakly defined in common/spl/spl_spi.c.
406 u32 spl_spi_boot_bus(void);
409 * spl_spi_boot_cs() - Lookup function for the SPI boot CS source.
411 * This function returns the SF CS to load from.
412 * If not overridden, it is weakly defined in common/spl/spl_spi.c.
414 u32 spl_spi_boot_cs(void);
417 * spl_mmc_boot_mode() - Lookup function for the mode of an MMC boot source.
418 * @boot_device: ID of the device which the MMC driver wants to read
419 * from. Common values are e.g. BOOT_DEVICE_MMC1,
420 * BOOT_DEVICE_MMC2, BOOT_DEVICE_MMC2_2.
422 * This function should return one of MMCSD_MODE_FS, MMCSD_MODE_EMMCBOOT, or
423 * MMCSD_MODE_RAW for each MMC boot source which is defined for the target. The
424 * boot_device parameter tells which device the MMC driver is interested in.
426 * If not overridden, it is weakly defined in common/spl/spl_mmc.c.
428 * Note: It is important to use the boot_device parameter instead of e.g.
429 * spl_boot_device() as U-Boot is not always loaded from the same device as SPL.
431 u32 spl_mmc_boot_mode(struct mmc *mmc, const u32 boot_device);
434 * spl_mmc_boot_partition() - MMC partition to load U-Boot from.
435 * @boot_device: ID of the device which the MMC driver wants to load
438 * This function should return the partition number which the SPL
439 * should load U-Boot from (on the given boot_device) when
440 * CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION is set.
442 * If not overridden, it is weakly defined in common/spl/spl_mmc.c.
444 int spl_mmc_boot_partition(const u32 boot_device);
448 * default_spl_mmc_emmc_boot_partition() - eMMC boot partition to load U-Boot from.
449 * mmc: Pointer for the mmc device structure
451 * This function should return the eMMC boot partition number which
452 * the SPL should load U-Boot from (on the given boot_device).
454 int default_spl_mmc_emmc_boot_partition(struct mmc *mmc);
457 * spl_mmc_emmc_boot_partition() - eMMC boot partition to load U-Boot from.
458 * mmc: Pointer for the mmc device structure
460 * This function should return the eMMC boot partition number which
461 * the SPL should load U-Boot from (on the given boot_device).
463 * If not overridden, it is weakly defined in common/spl/spl_mmc.c
464 * and calls default_spl_mmc_emmc_boot_partition();
466 int spl_mmc_emmc_boot_partition(struct mmc *mmc);
468 void spl_set_bd(void);
471 * spl_mmc_get_uboot_raw_sector() - Provide raw sector of the start of U-Boot
473 * This is a weak function which by default will provide the raw sector that is
474 * where the start of the U-Boot image has been written to.
476 * @mmc: struct mmc that describes the devie where U-Boot resides
477 * @raw_sect: The raw sector number where U-Boot is by default.
478 * Return: The raw sector location that U-Boot resides at
480 unsigned long spl_mmc_get_uboot_raw_sector(struct mmc *mmc,
481 unsigned long raw_sect);
484 * spl_set_header_raw_uboot() - Set up a standard SPL image structure
486 * This sets up the given spl_image which the standard values obtained from
487 * config options: CONFIG_SYS_MONITOR_LEN, CFG_SYS_UBOOT_START,
490 * @spl_image: Image description to set up
492 void spl_set_header_raw_uboot(struct spl_image_info *spl_image);
495 * spl_parse_image_header() - parse the image header and set up info
497 * This parses the legacy image header information at @header and sets up
498 * @spl_image according to what is found. If no image header is found, then
499 * a raw image or bootz is assumed. If CONFIG_SPL_PANIC_ON_RAW_IMAGE is
500 * enabled, then this causes a panic. If CONFIG_SPL_RAW_IMAGE_SUPPORT is not
501 * enabled then U-Boot gives up. Otherwise U-Boot sets up the image using
502 * spl_set_header_raw_uboot(), or possibly the bootz header.
504 * @spl_image: Image description to set up
505 * @header image header to parse
506 * Return: 0 if a header was correctly parsed, -ve on error
508 int spl_parse_image_header(struct spl_image_info *spl_image,
509 const struct spl_boot_device *bootdev,
510 const struct legacy_img_hdr *header);
512 void spl_board_prepare_for_linux(void);
515 * spl_board_prepare_for_optee() - Prepare board for an OPTEE payload
517 * Prepares the board for booting an OP-TEE payload. Initialization is platform
518 * specific, and may include configuring the TrustZone memory, and other
519 * initialization steps required by OP-TEE.
520 * Note that @fdt is not used directly by OP-TEE. OP-TEE passes this @fdt to
521 * its normal world target. This target is not guaranteed to be u-boot, so @fdt
522 * changes that would normally be done by u-boot should be done in this step.
524 * @fdt: Devicetree that will be passed on, or NULL
526 void spl_board_prepare_for_optee(void *fdt);
527 void spl_board_prepare_for_boot(void);
528 int spl_board_ubi_load_image(u32 boot_device);
529 int spl_board_boot_device(enum boot_device boot_dev_spl);
532 * spl_board_loader_name() - Return a name for the loader
534 * This is a weak function which might be overridden by the board code. With
535 * that a board specific value for the device where the U-Boot will be loaded
536 * from can be set. By default it returns NULL.
538 * @boot_device: ID of the device which SPL wants to load U-Boot from.
540 const char *spl_board_loader_name(u32 boot_device);
543 * jump_to_image_linux() - Jump to a Linux kernel from SPL
545 * This jumps into a Linux kernel using the information in @spl_image.
547 * @spl_image: Image description to set up
549 void __noreturn jump_to_image_linux(struct spl_image_info *spl_image);
552 * jump_to_image_optee() - Jump to OP-TEE OS from SPL
554 * This jumps into OP-TEE OS using the information in @spl_image.
556 * @spl_image: Image description to set up
558 void __noreturn jump_to_image_optee(struct spl_image_info *spl_image);
561 * spl_start_uboot() - Check if SPL should start the kernel or U-Boot
563 * This is called by the various SPL loaders to determine whether the board
564 * wants to load the kernel or U-Boot. This function should be provided by
567 * Return: 0 if SPL should start the kernel, 1 if U-Boot must be started
569 int spl_start_uboot(void);
572 * spl_display_print() - Display a board-specific message in SPL
574 * If CONFIG_SPL_DISPLAY_PRINT is enabled, U-Boot will call this function
575 * immediately after displaying the SPL console banner ("U-Boot SPL ...").
576 * This function should be provided by the board.
578 void spl_display_print(void);
581 * struct spl_boot_device - Describes a boot device used by SPL
583 * @boot_device: A number indicating the BOOT_DEVICE type. There are various
584 * BOOT_DEVICE... #defines and enums in U-Boot and they are not consistently
586 * @boot_device_name: Named boot device, or NULL if none.
588 * Note: Additional fields can be added here, bearing in mind that SPL is
589 * size-sensitive and common fields will be present on all boards. This
590 * struct can also be used to return additional information about the load
591 * process if that becomes useful.
593 struct spl_boot_device {
595 const char *boot_device_name;
599 * Holds information about a way of loading an SPL image
601 * @name: User-friendly name for this method (e.g. "MMC")
602 * @boot_device: Boot device that this loader supports
603 * @load_image: Function to call to load image
605 struct spl_image_loader {
606 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
611 * load_image() - Load an SPL image
613 * @spl_image: place to put image information
614 * @bootdev: describes the boot device to load from
616 int (*load_image)(struct spl_image_info *spl_image,
617 struct spl_boot_device *bootdev);
620 /* Helper function for accessing the name */
621 static inline const char *spl_loader_name(const struct spl_image_loader *loader)
623 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
625 name = spl_board_loader_name(loader->boot_device);
626 return name ?: loader->name;
632 /* Declare an SPL image loader */
633 #define SPL_LOAD_IMAGE(__name) \
634 ll_entry_declare(struct spl_image_loader, __name, spl_image_loader)
637 * _priority is the priority of this method, 0 meaning it will be the top
638 * choice for this device, 9 meaning it is the bottom choice.
639 * _boot_device is the BOOT_DEVICE_... value
640 * _method is the load_image function to call
642 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
643 #define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \
644 SPL_LOAD_IMAGE(_boot_device ## _priority ## _method) = { \
646 .boot_device = _boot_device, \
647 .load_image = _method, \
650 #define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \
651 SPL_LOAD_IMAGE(_boot_device ## _priority ## _method) = { \
652 .boot_device = _boot_device, \
653 .load_image = _method, \
657 /* SPL FAT image functions */
658 int spl_load_image_fat(struct spl_image_info *spl_image,
659 struct spl_boot_device *bootdev,
660 struct blk_desc *block_dev, int partition,
661 const char *filename);
662 int spl_load_image_fat_os(struct spl_image_info *spl_image,
663 struct spl_boot_device *bootdev,
664 struct blk_desc *block_dev, int partition);
666 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image);
668 /* SPL EXT image functions */
669 int spl_load_image_ext(struct spl_image_info *spl_image,
670 struct spl_boot_device *bootdev,
671 struct blk_desc *block_dev, int partition,
672 const char *filename);
673 int spl_load_image_ext_os(struct spl_image_info *spl_image,
674 struct spl_boot_device *bootdev,
675 struct blk_desc *block_dev, int partition);
676 int spl_blk_load_image(struct spl_image_info *spl_image,
677 struct spl_boot_device *bootdev,
678 enum uclass_id uclass_id, int devnum, int partnum);
681 * spl_early_init() - Set up device tree and driver model in SPL if enabled
683 * Call this function in board_init_f() if you want to use device tree and
684 * driver model early, before board_init_r() is called.
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.
689 int spl_early_init(void);
692 * spl_init() - Set up device tree and driver model in SPL if enabled
694 * You can optionally call spl_early_init(), then optionally call spl_init().
695 * This function will be called from board_init_r() if not called earlier.
697 * Both spl_early_init() and spl_init() perform a similar function except that
698 * the latter will not set up the malloc() area if
699 * CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN is enabled, since it is assumed to
700 * already be done by a calll to spl_relocate_stack_gd() before board_init_r()
703 * This function will be called from board_init_r() if not called earlier.
705 * If this is not called, then driver model will be inactive in SPL's
706 * board_init_f(), and no device tree will be available.
710 #ifdef CONFIG_SPL_BOARD_INIT
711 void spl_board_init(void);
715 * spl_was_boot_source() - check if U-Boot booted from SPL
717 * This will normally be true, but if U-Boot jumps to second U-Boot, it will
718 * be false. This should be implemented by board-specific code.
720 * Return: true if U-Boot booted from SPL, else false
722 bool spl_was_boot_source(void);
725 * spl_dfu_cmd- run dfu command with chosen mmc device interface
726 * @param usb_index - usb controller number
727 * @param mmc_dev - mmc device nubmer
729 * Return: 0 on success, otherwise error code
731 int spl_dfu_cmd(int usbctrl, char *dfu_alt_info, char *interface, char *devstr);
733 int spl_mmc_load_image(struct spl_image_info *spl_image,
734 struct spl_boot_device *bootdev);
737 * spl_mmc_load() - Load an image file from MMC/SD media
739 * @param spl_image Image data filled in by loading process
740 * @param bootdev Describes which device to load from
741 * @param filename Name of file to load (in FS mode)
742 * @param raw_part Partition to load from (in RAW mode)
743 * @param raw_sect Sector to load from (in RAW mode)
745 * Return: 0 on success, otherwise error code
747 int spl_mmc_load(struct spl_image_info *spl_image,
748 struct spl_boot_device *bootdev,
749 const char *filename,
751 unsigned long raw_sect);
754 * spl_usb_load() - Load an image file from USB mass storage
756 * @param spl_image Image data filled in by loading process
757 * @param bootdev Describes which device to load from
758 * @param raw_part Fat partition to load from
759 * @param filename Name of file to load
761 * Return: 0 on success, otherwise error code
763 int spl_usb_load(struct spl_image_info *spl_image,
764 struct spl_boot_device *bootdev,
765 int partition, const char *filename);
767 int spl_ymodem_load_image(struct spl_image_info *spl_image,
768 struct spl_boot_device *bootdev);
771 * spl_invoke_atf - boot using an ARM trusted firmware image
773 void spl_invoke_atf(struct spl_image_info *spl_image);
776 * bl2_plat_get_bl31_params() - return 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 a weak function which might be overridden by the board code. By
782 * default it will just call bl2_plat_get_bl31_params_default().
784 * If you just want to manipulate or add some parameters, you can override
785 * this function, call bl2_plat_get_bl31_params_default and operate on the
786 * returned bl31 params.
788 * Return: bl31 params structure pointer
790 struct bl31_params *bl2_plat_get_bl31_params(uintptr_t bl32_entry,
791 uintptr_t bl33_entry,
795 * bl2_plat_get_bl31_params_default() - prepare params for bl31.
796 * @bl32_entry: address of BL32 executable (secure)
797 * @bl33_entry: address of BL33 executable (non secure)
798 * @fdt_addr: address of Flat Device Tree
800 * This is the default implementation of bl2_plat_get_bl31_params(). It assigns
801 * a pointer to the memory that the platform has kept aside to pass platform
802 * specific and trusted firmware related information to BL31. This memory is
803 * allocated by allocating memory to bl2_to_bl31_params_mem structure which is
804 * a superset of all the structure whose information is passed to BL31
806 * NOTE: The memory is statically allocated, thus this function should be
807 * called only once. All subsequent calls will overwrite any changes.
809 * Return: bl31 params structure pointer
811 struct bl31_params *bl2_plat_get_bl31_params_default(uintptr_t bl32_entry,
812 uintptr_t bl33_entry,
816 * bl2_plat_get_bl31_params_v2() - return params for bl31
817 * @bl32_entry: address of BL32 executable (secure)
818 * @bl33_entry: address of BL33 executable (non secure)
819 * @fdt_addr: address of Flat Device Tree
821 * This function does the same as bl2_plat_get_bl31_params() except that is is
822 * used for the new LOAD_IMAGE_V2 option, which uses a slightly different
823 * method to pass the parameters.
825 * Return: bl31 params structure pointer
827 struct bl_params *bl2_plat_get_bl31_params_v2(uintptr_t bl32_entry,
828 uintptr_t bl33_entry,
832 * bl2_plat_get_bl31_params_v2_default() - prepare params for bl31.
833 * @bl32_entry: address of BL32 executable (secure)
834 * @bl33_entry: address of BL33 executable (non secure)
835 * @fdt_addr: address of Flat Device Tree
837 * This is the default implementation of bl2_plat_get_bl31_params_v2(). It
838 * prepares the linked list of the bl31 params, populates the image types and
839 * set the entry points for bl32 and bl33 (if available).
841 * NOTE: The memory is statically allocated, thus this function should be
842 * called only once. All subsequent calls will overwrite any changes.
844 * Return: bl31 params structure pointer
846 struct bl_params *bl2_plat_get_bl31_params_v2_default(uintptr_t bl32_entry,
847 uintptr_t bl33_entry,
850 * spl_optee_entry - entry function for optee
852 * args defind in op-tee project
853 * https://github.com/OP-TEE/optee_os/
854 * core/arch/arm/kernel/generic_entry_a32.S
856 * @arg1: (ARMv7 standard bootarg #1)
857 * @arg2: device tree address, (ARMv7 standard bootarg #2)
858 * @arg3: non-secure entry address (ARMv7 bootarg #0)
860 void __noreturn spl_optee_entry(void *arg0, void *arg1, void *arg2, void *arg3);
863 * spl_invoke_opensbi - boot using a RISC-V OpenSBI image
865 void __noreturn spl_invoke_opensbi(struct spl_image_info *spl_image);
868 * board_return_to_bootrom - allow for boards to continue with the boot ROM
870 * If a board (e.g. the Rockchip RK3368 boards) provide some
871 * supporting functionality for SPL in their boot ROM and the SPL
872 * stage wants to return to the ROM code to continue booting, boards
873 * can implement 'board_return_to_bootrom'.
875 int board_return_to_bootrom(struct spl_image_info *spl_image,
876 struct spl_boot_device *bootdev);
879 * board_spl_fit_size_align - specific size align before processing payload
882 ulong board_spl_fit_size_align(ulong size);
885 * spl_perform_fixups() - arch/board-specific callback before processing
888 void spl_perform_fixups(struct spl_image_info *spl_image);
891 * spl_get_load_buffer() - get buffer for loading partial image data
893 * Returns memory area which can be populated by partial image data,
894 * ie. uImage or fitImage header.
896 struct legacy_img_hdr *spl_get_load_buffer(ssize_t offset, size_t size);
898 void board_boot_order(u32 *spl_boot_list);
899 void spl_save_restore_data(void);