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 */
74 * spl_phase() - Find out the phase of U-Boot
76 * This can be used to avoid #ifdef logic and use if() instead.
78 * For example, to include code only in TPL, you might do:
80 * #ifdef CONFIG_TPL_BUILD
84 * but with this you can use:
86 * if (spl_phase() == PHASE_TPL) {
90 * To include code only in SPL, you might do:
92 * #if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD)
96 * but with this you can use:
98 * if (spl_phase() == PHASE_SPL) {
102 * To include code only in U-Boot proper, you might do:
104 * #ifndef CONFIG_SPL_BUILD
108 * but with this you can use:
110 * if (spl_phase() == PHASE_BOARD_F) {
114 * Return: U-Boot phase
116 static inline enum u_boot_phase spl_phase(void)
118 #ifdef CONFIG_TPL_BUILD
120 #elif defined(CONFIG_VPL_BUILD)
122 #elif defined(CONFIG_SPL_BUILD)
125 DECLARE_GLOBAL_DATA_PTR;
127 if (!(gd->flags & GD_FLG_RELOC))
128 return PHASE_BOARD_F;
130 return PHASE_BOARD_R;
135 * spl_prev_phase() - Figure out the previous U-Boot phase
137 * Return: the previous phase from this one, e.g. if called in SPL this returns
138 * PHASE_TPL, if TPL is enabled
140 static inline enum u_boot_phase spl_prev_phase(void)
142 #ifdef CONFIG_TPL_BUILD
144 #elif defined(CONFIG_VPL_BUILD)
145 return PHASE_TPL; /* VPL requires TPL */
146 #elif defined(CONFIG_SPL_BUILD)
147 return IS_ENABLED(CONFIG_VPL) ? PHASE_VPL :
148 IS_ENABLED(CONFIG_TPL) ? PHASE_TPL :
151 return IS_ENABLED(CONFIG_SPL) ? PHASE_SPL :
157 * spl_next_phase() - Figure out the next U-Boot phase
159 * Return: the next phase from this one, e.g. if called in TPL this returns
162 static inline enum u_boot_phase spl_next_phase(void)
164 #ifdef CONFIG_TPL_BUILD
165 return IS_ENABLED(CONFIG_VPL) ? PHASE_VPL : PHASE_SPL;
166 #elif defined(CONFIG_VPL_BUILD)
169 return PHASE_BOARD_F;
174 * spl_phase_name() - Get the name of the current phase
178 static inline const char *spl_phase_name(enum u_boot_phase phase)
196 * spl_phase_prefix() - Get the prefix of the current phase
198 * @phase: Phase to look up
199 * Return: phase prefix ("spl", "tpl", etc.)
201 static inline const char *spl_phase_prefix(enum u_boot_phase phase)
218 /* A string name for SPL or TPL */
219 #ifdef CONFIG_SPL_BUILD
220 # ifdef CONFIG_TPL_BUILD
221 # define SPL_TPL_NAME "TPL"
222 # elif defined(CONFIG_VPL_BUILD)
223 # define SPL_TPL_NAME "VPL"
225 # define SPL_TPL_NAME "SPL"
227 # define SPL_TPL_PROMPT SPL_TPL_NAME ": "
229 # define SPL_TPL_NAME ""
230 # define SPL_TPL_PROMPT ""
234 * enum spl_sandbox_flags - flags for sandbox's use of spl_image_info->flags
236 * @SPL_SANDBOXF_ARG_IS_FNAME: arg is the filename to jump to (default)
237 * @SPL_SANDBOXF_ARG_IS_BUF: arg is the containing image to jump to, @offset is
238 * the start offset within the image, @size is the size of the image
240 enum spl_sandbox_flags {
241 SPL_SANDBOXF_ARG_IS_FNAME = 0,
242 SPL_SANDBOXF_ARG_IS_BUF,
245 struct spl_image_info {
249 uintptr_t entry_point;
250 #if CONFIG_IS_ENABLED(LOAD_FIT) || CONFIG_IS_ENABLED(LOAD_FIT_FULL)
258 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
266 * Information required to load data from a device
268 * @dev: Pointer to the device, e.g. struct mmc *
269 * @priv: Private data for the device
270 * @bl_len: Block length for reading in bytes
271 * @filename: Name of the fit image file.
272 * @read: Function to call to read from the device
274 struct spl_load_info {
278 const char *filename;
280 * read() - Read from device
282 * @load: Information about the load state
283 * @sector: Sector number to read from (each @load->bl_len bytes)
284 * @count: Number of sectors to read
285 * @buf: Buffer to read into
286 * @return number of sectors read, 0 on error
288 ulong (*read)(struct spl_load_info *load, ulong sector, ulong count,
293 * We need to know the position of U-Boot in memory so we can jump to it. We
294 * allow any U-Boot binary to be used (u-boot.bin, u-boot-nodtb.bin,
295 * u-boot.img), hence the '_any'. These is no checking here that the correct
296 * image is found. For example if u-boot.img is used we don't check that
297 * spl_parse_image_header() can parse a valid header.
299 * Similarly for SPL, so that TPL can jump to SPL.
301 binman_sym_extern(ulong, u_boot_any, image_pos);
302 binman_sym_extern(ulong, u_boot_any, size);
303 binman_sym_extern(ulong, u_boot_spl_any, image_pos);
304 binman_sym_extern(ulong, u_boot_spl_any, size);
305 binman_sym_extern(ulong, u_boot_vpl_any, image_pos);
306 binman_sym_extern(ulong, u_boot_vpl_any, size);
309 * spl_get_image_pos() - get the image position of the next phase
311 * This returns the image position to use to load the next phase of U-Boot
313 ulong spl_get_image_pos(void);
316 * spl_get_image_size() - get the size of the next phase
318 * This returns the size to use to load the next phase of U-Boot
320 ulong spl_get_image_size(void);
323 * spl_get_image_text_base() - get the text base of the next phase
325 * This returns the address that the next stage is linked to run at, i.e.
326 * CONFIG_SPL_TEXT_BASE or CONFIG_TEXT_BASE
328 * Return: text-base address
330 ulong spl_get_image_text_base(void);
333 * spl_load_simple_fit_skip_processing() - Hook to allow skipping the FIT
334 * image processing during spl_load_simple_fit().
336 * Return true to skip FIT processing, false to preserve the full code flow
337 * of spl_load_simple_fit().
339 bool spl_load_simple_fit_skip_processing(void);
342 * spl_load_simple_fit_fix_load() - Hook to make fixes
343 * after fit image header is loaded
345 * Returns pointer to fit
347 void *spl_load_simple_fit_fix_load(const void *fit);
350 * spl_load_simple_fit() - Loads a fit image from a device.
351 * @spl_image: Image description to set up
352 * @info: Structure containing the information required to load data.
353 * @sector: Sector number where FIT image is located in the device
354 * @fdt: Pointer to the copied FIT header.
356 * Reads the FIT image @sector in the device. Loads u-boot image to
357 * specified load address and copies the dtb to end of u-boot image.
358 * Returns 0 on success.
360 int spl_load_simple_fit(struct spl_image_info *spl_image,
361 struct spl_load_info *info, ulong sector, void *fdt);
363 #define SPL_COPY_PAYLOAD_ONLY 1
364 #define SPL_FIT_FOUND 2
367 * spl_load_legacy_img() - Loads a legacy image from a device.
368 * @spl_image: Image description to set up
369 * @load: Structure containing the information required to load data.
370 * @offset: Pointer to image
371 * @hdr: Pointer to image header
373 * Reads an legacy image from the device. Loads u-boot image to
374 * specified load address.
375 * Returns 0 on success.
377 int spl_load_legacy_img(struct spl_image_info *spl_image,
378 struct spl_boot_device *bootdev,
379 struct spl_load_info *load, ulong offset,
380 struct legacy_img_hdr *hdr);
384 * spl_load_imx_container() - Loads a imx container image from a device.
385 * @spl_image: Image description to set up
386 * @info: Structure containing the information required to load data.
387 * @sector: Sector number where container image is located in the device
389 * Reads the container image @sector in the device. Loads u-boot image to
390 * specified load address.
392 int spl_load_imx_container(struct spl_image_info *spl_image,
393 struct spl_load_info *info, ulong sector);
395 /* SPL common functions */
396 void preloader_console_init(void);
397 u32 spl_boot_device(void);
400 * spl_spi_boot_bus() - Lookup function for the SPI boot bus source.
402 * This function returns the SF bus to load from.
403 * If not overridden, it is weakly defined in common/spl/spl_spi.c.
405 u32 spl_spi_boot_bus(void);
408 * spl_spi_boot_cs() - Lookup function for the SPI boot CS source.
410 * This function returns the SF CS to load from.
411 * If not overridden, it is weakly defined in common/spl/spl_spi.c.
413 u32 spl_spi_boot_cs(void);
416 * spl_mmc_boot_mode() - Lookup function for the mode of an MMC boot source.
417 * @boot_device: ID of the device which the MMC driver wants to read
418 * from. Common values are e.g. BOOT_DEVICE_MMC1,
419 * BOOT_DEVICE_MMC2, BOOT_DEVICE_MMC2_2.
421 * This function should return one of MMCSD_MODE_FS, MMCSD_MODE_EMMCBOOT, or
422 * MMCSD_MODE_RAW for each MMC boot source which is defined for the target. The
423 * boot_device parameter tells which device the MMC driver is interested in.
425 * If not overridden, it is weakly defined in common/spl/spl_mmc.c.
427 * Note: It is important to use the boot_device parameter instead of e.g.
428 * spl_boot_device() as U-Boot is not always loaded from the same device as SPL.
430 u32 spl_mmc_boot_mode(struct mmc *mmc, const u32 boot_device);
433 * spl_mmc_boot_partition() - MMC partition to load U-Boot from.
434 * @boot_device: ID of the device which the MMC driver wants to load
437 * This function should return the partition number which the SPL
438 * should load U-Boot from (on the given boot_device) when
439 * CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION is set.
441 * If not overridden, it is weakly defined in common/spl/spl_mmc.c.
443 int spl_mmc_boot_partition(const u32 boot_device);
447 * default_spl_mmc_emmc_boot_partition() - eMMC boot partition to load U-Boot from.
448 * mmc: Pointer for the mmc device structure
450 * This function should return the eMMC boot partition number which
451 * the SPL should load U-Boot from (on the given boot_device).
453 int default_spl_mmc_emmc_boot_partition(struct mmc *mmc);
456 * spl_mmc_emmc_boot_partition() - eMMC boot partition to load U-Boot from.
457 * mmc: Pointer for the mmc device structure
459 * This function should return the eMMC boot partition number which
460 * the SPL should load U-Boot from (on the given boot_device).
462 * If not overridden, it is weakly defined in common/spl/spl_mmc.c
463 * and calls default_spl_mmc_emmc_boot_partition();
465 int spl_mmc_emmc_boot_partition(struct mmc *mmc);
467 void spl_set_bd(void);
470 * spl_set_header_raw_uboot() - Set up a standard SPL image structure
472 * This sets up the given spl_image which the standard values obtained from
473 * config options: CONFIG_SYS_MONITOR_LEN, CONFIG_SYS_UBOOT_START,
476 * @spl_image: Image description to set up
478 void spl_set_header_raw_uboot(struct spl_image_info *spl_image);
481 * spl_parse_image_header() - parse the image header and set up info
483 * This parses the legacy image header information at @header and sets up
484 * @spl_image according to what is found. If no image header is found, then
485 * a raw image or bootz is assumed. If CONFIG_SPL_PANIC_ON_RAW_IMAGE is
486 * enabled, then this causes a panic. If CONFIG_SPL_RAW_IMAGE_SUPPORT is not
487 * enabled then U-Boot gives up. Otherwise U-Boot sets up the image using
488 * spl_set_header_raw_uboot(), or possibly the bootz header.
490 * @spl_image: Image description to set up
491 * @header image header to parse
492 * Return: 0 if a header was correctly parsed, -ve on error
494 int spl_parse_image_header(struct spl_image_info *spl_image,
495 const struct spl_boot_device *bootdev,
496 const struct legacy_img_hdr *header);
498 void spl_board_prepare_for_linux(void);
501 * spl_board_prepare_for_optee() - Prepare board for an OPTEE payload
503 * Prepares the board for booting an OP-TEE payload. Initialization is platform
504 * specific, and may include configuring the TrustZone memory, and other
505 * initialization steps required by OP-TEE.
506 * Note that @fdt is not used directly by OP-TEE. OP-TEE passes this @fdt to
507 * its normal world target. This target is not guaranteed to be u-boot, so @fdt
508 * changes that would normally be done by u-boot should be done in this step.
510 * @fdt: Devicetree that will be passed on, or NULL
512 void spl_board_prepare_for_optee(void *fdt);
513 void spl_board_prepare_for_boot(void);
514 int spl_board_ubi_load_image(u32 boot_device);
515 int spl_board_boot_device(u32 boot_device);
518 * spl_board_loader_name() - Return a name for the loader
520 * This is a weak function which might be overridden by the board code. With
521 * that a board specific value for the device where the U-Boot will be loaded
522 * from can be set. By default it returns NULL.
524 * @boot_device: ID of the device which SPL wants to load U-Boot from.
526 const char *spl_board_loader_name(u32 boot_device);
529 * jump_to_image_linux() - Jump to a Linux kernel from SPL
531 * This jumps into a Linux kernel using the information in @spl_image.
533 * @spl_image: Image description to set up
535 void __noreturn jump_to_image_linux(struct spl_image_info *spl_image);
538 * jump_to_image_linux() - Jump to OP-TEE OS from SPL
540 * This jumps into OP-TEE OS using the information in @spl_image.
542 * @spl_image: Image description to set up
544 void __noreturn jump_to_image_optee(struct spl_image_info *spl_image);
547 * spl_start_uboot() - Check if SPL should start the kernel or U-Boot
549 * This is called by the various SPL loaders to determine whether the board
550 * wants to load the kernel or U-Boot. This function should be provided by
553 * Return: 0 if SPL should start the kernel, 1 if U-Boot must be started
555 int spl_start_uboot(void);
558 * spl_display_print() - Display a board-specific message in SPL
560 * If CONFIG_SPL_DISPLAY_PRINT is enabled, U-Boot will call this function
561 * immediately after displaying the SPL console banner ("U-Boot SPL ...").
562 * This function should be provided by the board.
564 void spl_display_print(void);
567 * struct spl_boot_device - Describes a boot device used by SPL
569 * @boot_device: A number indicating the BOOT_DEVICE type. There are various
570 * BOOT_DEVICE... #defines and enums in U-Boot and they are not consistently
572 * @boot_device_name: Named boot device, or NULL if none.
574 * Note: Additional fields can be added here, bearing in mind that SPL is
575 * size-sensitive and common fields will be present on all boards. This
576 * struct can also be used to return additional information about the load
577 * process if that becomes useful.
579 struct spl_boot_device {
581 const char *boot_device_name;
585 * Holds information about a way of loading an SPL image
587 * @name: User-friendly name for this method (e.g. "MMC")
588 * @boot_device: Boot device that this loader supports
589 * @load_image: Function to call to load image
591 struct spl_image_loader {
592 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
597 * load_image() - Load an SPL image
599 * @spl_image: place to put image information
600 * @bootdev: describes the boot device to load from
602 int (*load_image)(struct spl_image_info *spl_image,
603 struct spl_boot_device *bootdev);
606 /* Helper function for accessing the name */
607 static inline const char *spl_loader_name(const struct spl_image_loader *loader)
609 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
611 name = spl_board_loader_name(loader->boot_device);
612 return name ?: loader->name;
618 /* Declare an SPL image loader */
619 #define SPL_LOAD_IMAGE(__name) \
620 ll_entry_declare(struct spl_image_loader, __name, spl_image_loader)
623 * _priority is the priority of this method, 0 meaning it will be the top
624 * choice for this device, 9 meaning it is the bottom choice.
625 * _boot_device is the BOOT_DEVICE_... value
626 * _method is the load_image function to call
628 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
629 #define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \
630 SPL_LOAD_IMAGE(_boot_device ## _priority ## _method) = { \
632 .boot_device = _boot_device, \
633 .load_image = _method, \
636 #define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \
637 SPL_LOAD_IMAGE(_boot_device ## _priority ## _method) = { \
638 .boot_device = _boot_device, \
639 .load_image = _method, \
643 /* SPL FAT image functions */
644 int spl_load_image_fat(struct spl_image_info *spl_image,
645 struct spl_boot_device *bootdev,
646 struct blk_desc *block_dev, int partition,
647 const char *filename);
648 int spl_load_image_fat_os(struct spl_image_info *spl_image,
649 struct spl_boot_device *bootdev,
650 struct blk_desc *block_dev, int partition);
652 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image);
654 /* SPL EXT image functions */
655 int spl_load_image_ext(struct spl_image_info *spl_image,
656 struct spl_boot_device *bootdev,
657 struct blk_desc *block_dev, int partition,
658 const char *filename);
659 int spl_load_image_ext_os(struct spl_image_info *spl_image,
660 struct spl_boot_device *bootdev,
661 struct blk_desc *block_dev, int partition);
664 * spl_early_init() - Set up device tree and driver model in SPL if enabled
666 * Call this function in board_init_f() if you want to use device tree and
667 * driver model early, before board_init_r() is called.
669 * If this is not called, then driver model will be inactive in SPL's
670 * board_init_f(), and no device tree will be available.
672 int spl_early_init(void);
675 * spl_init() - Set up device tree and driver model in SPL if enabled
677 * You can optionally call spl_early_init(), then optionally call spl_init().
678 * This function will be called from board_init_r() if not called earlier.
680 * Both spl_early_init() and spl_init() perform a similar function except that
681 * the latter will not set up the malloc() area if
682 * CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN is enabled, since it is assumed to
683 * already be done by a calll to spl_relocate_stack_gd() before board_init_r()
686 * This function will be called from board_init_r() if not called earlier.
688 * If this is not called, then driver model will be inactive in SPL's
689 * board_init_f(), and no device tree will be available.
693 #ifdef CONFIG_SPL_BOARD_INIT
694 void spl_board_init(void);
698 * spl_was_boot_source() - check if U-Boot booted from SPL
700 * This will normally be true, but if U-Boot jumps to second U-Boot, it will
701 * be false. This should be implemented by board-specific code.
703 * Return: true if U-Boot booted from SPL, else false
705 bool spl_was_boot_source(void);
708 * spl_dfu_cmd- run dfu command with chosen mmc device interface
709 * @param usb_index - usb controller number
710 * @param mmc_dev - mmc device nubmer
712 * Return: 0 on success, otherwise error code
714 int spl_dfu_cmd(int usbctrl, char *dfu_alt_info, char *interface, char *devstr);
716 int spl_mmc_load_image(struct spl_image_info *spl_image,
717 struct spl_boot_device *bootdev);
720 * spl_mmc_load() - Load an image file from MMC/SD media
722 * @param spl_image Image data filled in by loading process
723 * @param bootdev Describes which device to load from
724 * @param filename Name of file to load (in FS mode)
725 * @param raw_part Partition to load from (in RAW mode)
726 * @param raw_sect Sector to load from (in RAW mode)
728 * Return: 0 on success, otherwise error code
730 int spl_mmc_load(struct spl_image_info *spl_image,
731 struct spl_boot_device *bootdev,
732 const char *filename,
734 unsigned long raw_sect);
737 * spl_usb_load() - Load an image file from USB mass storage
739 * @param spl_image Image data filled in by loading process
740 * @param bootdev Describes which device to load from
741 * @param raw_part Fat partition to load from
742 * @param filename Name of file to load
744 * Return: 0 on success, otherwise error code
746 int spl_usb_load(struct spl_image_info *spl_image,
747 struct spl_boot_device *bootdev,
748 int partition, const char *filename);
750 int spl_ymodem_load_image(struct spl_image_info *spl_image,
751 struct spl_boot_device *bootdev);
754 * spl_invoke_atf - boot using an ARM trusted firmware image
756 void spl_invoke_atf(struct spl_image_info *spl_image);
759 * bl2_plat_get_bl31_params() - return params for bl31.
760 * @bl32_entry: address of BL32 executable (secure)
761 * @bl33_entry: address of BL33 executable (non secure)
762 * @fdt_addr: address of Flat Device Tree
764 * This is a weak function which might be overridden by the board code. By
765 * default it will just call bl2_plat_get_bl31_params_default().
767 * If you just want to manipulate or add some parameters, you can override
768 * this function, call bl2_plat_get_bl31_params_default and operate on the
769 * returned bl31 params.
771 * Return: bl31 params structure pointer
773 struct bl31_params *bl2_plat_get_bl31_params(uintptr_t bl32_entry,
774 uintptr_t bl33_entry,
778 * bl2_plat_get_bl31_params_default() - prepare params for bl31.
779 * @bl32_entry: address of BL32 executable (secure)
780 * @bl33_entry: address of BL33 executable (non secure)
781 * @fdt_addr: address of Flat Device Tree
783 * This is the default implementation of bl2_plat_get_bl31_params(). It assigns
784 * a pointer to the memory that the platform has kept aside to pass platform
785 * specific and trusted firmware related information to BL31. This memory is
786 * allocated by allocating memory to bl2_to_bl31_params_mem structure which is
787 * a superset of all the structure whose information is passed to BL31
789 * NOTE: The memory is statically allocated, thus this function should be
790 * called only once. All subsequent calls will overwrite any changes.
792 * Return: bl31 params structure pointer
794 struct bl31_params *bl2_plat_get_bl31_params_default(uintptr_t bl32_entry,
795 uintptr_t bl33_entry,
799 * bl2_plat_get_bl31_params_v2() - return params for bl31
800 * @bl32_entry: address of BL32 executable (secure)
801 * @bl33_entry: address of BL33 executable (non secure)
802 * @fdt_addr: address of Flat Device Tree
804 * This function does the same as bl2_plat_get_bl31_params() except that is is
805 * used for the new LOAD_IMAGE_V2 option, which uses a slightly different
806 * method to pass the parameters.
808 * Return: bl31 params structure pointer
810 struct bl_params *bl2_plat_get_bl31_params_v2(uintptr_t bl32_entry,
811 uintptr_t bl33_entry,
815 * bl2_plat_get_bl31_params_v2_default() - prepare params for bl31.
816 * @bl32_entry: address of BL32 executable (secure)
817 * @bl33_entry: address of BL33 executable (non secure)
818 * @fdt_addr: address of Flat Device Tree
820 * This is the default implementation of bl2_plat_get_bl31_params_v2(). It
821 * prepares the linked list of the bl31 params, populates the image types and
822 * set the entry points for bl32 and bl33 (if available).
824 * NOTE: The memory is statically allocated, thus this function should be
825 * called only once. All subsequent calls will overwrite any changes.
827 * Return: bl31 params structure pointer
829 struct bl_params *bl2_plat_get_bl31_params_v2_default(uintptr_t bl32_entry,
830 uintptr_t bl33_entry,
833 * spl_optee_entry - entry function for optee
835 * args defind in op-tee project
836 * https://github.com/OP-TEE/optee_os/
837 * core/arch/arm/kernel/generic_entry_a32.S
839 * @arg1: (ARMv7 standard bootarg #1)
840 * @arg2: device tree address, (ARMv7 standard bootarg #2)
841 * @arg3: non-secure entry address (ARMv7 bootarg #0)
843 void __noreturn spl_optee_entry(void *arg0, void *arg1, void *arg2, void *arg3);
846 * spl_invoke_opensbi - boot using a RISC-V OpenSBI image
848 void spl_invoke_opensbi(struct spl_image_info *spl_image);
851 * board_return_to_bootrom - allow for boards to continue with the boot ROM
853 * If a board (e.g. the Rockchip RK3368 boards) provide some
854 * supporting functionality for SPL in their boot ROM and the SPL
855 * stage wants to return to the ROM code to continue booting, boards
856 * can implement 'board_return_to_bootrom'.
858 int board_return_to_bootrom(struct spl_image_info *spl_image,
859 struct spl_boot_device *bootdev);
862 * board_spl_fit_post_load - allow process images after loading finished
863 * @fit: Pointer to a valid Flattened Image Tree blob
865 void board_spl_fit_post_load(const void *fit);
868 * board_spl_fit_size_align - specific size align before processing payload
871 ulong board_spl_fit_size_align(ulong size);
874 * spl_perform_fixups() - arch/board-specific callback before processing
877 void spl_perform_fixups(struct spl_image_info *spl_image);
880 * spl_get_load_buffer() - get buffer for loading partial image data
882 * Returns memory area which can be populated by partial image data,
883 * ie. uImage or fitImage header.
885 struct legacy_img_hdr *spl_get_load_buffer(ssize_t offset, size_t size);
887 void spl_save_restore_data(void);