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Diffstat (limited to 'roms/u-boot/include/spl.h')
| -rw-r--r-- | roms/u-boot/include/spl.h | 730 |
1 files changed, 730 insertions, 0 deletions
diff --git a/roms/u-boot/include/spl.h b/roms/u-boot/include/spl.h new file mode 100644 index 000000000..cee9a42dd --- /dev/null +++ b/roms/u-boot/include/spl.h @@ -0,0 +1,730 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2012 + * Texas Instruments, <www.ti.com> + */ +#ifndef _SPL_H_ +#define _SPL_H_ + +#include <binman_sym.h> +#include <linker_lists.h> + +/* Platform-specific defines */ +#include <linux/compiler.h> +#include <asm/global_data.h> +#include <asm/spl.h> +#include <handoff.h> + +struct blk_desc; +struct image_header; + +/* Value in r0 indicates we booted from U-Boot */ +#define UBOOT_NOT_LOADED_FROM_SPL 0x13578642 + +/* Boot type */ +#define MMCSD_MODE_UNDEFINED 0 +#define MMCSD_MODE_RAW 1 +#define MMCSD_MODE_FS 2 +#define MMCSD_MODE_EMMCBOOT 3 + +struct blk_desc; +struct image_header; + +/* + * u_boot_first_phase() - check if this is the first U-Boot phase + * + * U-Boot has up to three phases: TPL, SPL and U-Boot proper. Depending on the + * build flags we can determine whether the current build is for the first + * phase of U-Boot or not. If there is no SPL, then this is U-Boot proper. If + * there is SPL but no TPL, the the first phase is SPL. If there is TPL, then + * it is the first phase. + * + * @returns true if this is the first phase of U-Boot + * + */ +static inline bool u_boot_first_phase(void) +{ + if (IS_ENABLED(CONFIG_TPL)) { + if (IS_ENABLED(CONFIG_TPL_BUILD)) + return true; + } else if (IS_ENABLED(CONFIG_SPL)) { + if (IS_ENABLED(CONFIG_SPL_BUILD)) + return true; + } else { + return true; + } + + return false; +} + +enum u_boot_phase { + PHASE_NONE, /* Invalid phase, signifying before U-Boot */ + PHASE_TPL, /* Running in TPL */ + PHASE_SPL, /* Running in SPL */ + PHASE_BOARD_F, /* Running in U-Boot before relocation */ + PHASE_BOARD_R, /* Running in U-Boot after relocation */ +}; + +/** + * spl_phase() - Find out the phase of U-Boot + * + * This can be used to avoid #ifdef logic and use if() instead. + * + * For example, to include code only in TPL, you might do: + * + * #ifdef CONFIG_TPL_BUILD + * ... + * #endif + * + * but with this you can use: + * + * if (spl_phase() == PHASE_TPL) { + * ... + * } + * + * To include code only in SPL, you might do: + * + * #if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD) + * ... + * #endif + * + * but with this you can use: + * + * if (spl_phase() == PHASE_SPL) { + * ... + * } + * + * To include code only in U-Boot proper, you might do: + * + * #ifndef CONFIG_SPL_BUILD + * ... + * #endif + * + * but with this you can use: + * + * if (spl_phase() == PHASE_BOARD_F) { + * ... + * } + * + * @return U-Boot phase + */ +static inline enum u_boot_phase spl_phase(void) +{ +#ifdef CONFIG_TPL_BUILD + return PHASE_TPL; +#elif CONFIG_SPL_BUILD + return PHASE_SPL; +#else + DECLARE_GLOBAL_DATA_PTR; + + if (!(gd->flags & GD_FLG_RELOC)) + return PHASE_BOARD_F; + else + return PHASE_BOARD_R; +#endif +} + +/** + * spl_prev_phase() - Figure out the previous U-Boot phase + * + * @return the previous phase from this one, e.g. if called in SPL this returns + * PHASE_TPL, if TPL is enabled + */ +static inline enum u_boot_phase spl_prev_phase(void) +{ +#ifdef CONFIG_TPL_BUILD + return PHASE_NONE; +#elif defined(CONFIG_SPL_BUILD) + return IS_ENABLED(CONFIG_TPL) ? PHASE_TPL : PHASE_NONE; +#else + return IS_ENABLED(CONFIG_SPL) ? PHASE_SPL : PHASE_NONE; +#endif +} + +/** + * spl_next_phase() - Figure out the next U-Boot phase + * + * @return the next phase from this one, e.g. if called in TPL this returns + * PHASE_SPL + */ +static inline enum u_boot_phase spl_next_phase(void) +{ +#ifdef CONFIG_TPL_BUILD + return PHASE_SPL; +#else + return PHASE_BOARD_F; +#endif +} + +/** + * spl_phase_name() - Get the name of the current phase + * + * @return phase name + */ +static inline const char *spl_phase_name(enum u_boot_phase phase) +{ + switch (phase) { + case PHASE_TPL: + return "TPL"; + case PHASE_SPL: + return "SPL"; + case PHASE_BOARD_F: + case PHASE_BOARD_R: + return "U-Boot"; + default: + return "phase?"; + } +} + +/* A string name for SPL or TPL */ +#ifdef CONFIG_SPL_BUILD +# ifdef CONFIG_TPL_BUILD +# define SPL_TPL_NAME "TPL" +# else +# define SPL_TPL_NAME "SPL" +# endif +# define SPL_TPL_PROMPT SPL_TPL_NAME ": " +#else +# define SPL_TPL_NAME "" +# define SPL_TPL_PROMPT "" +#endif + +struct spl_image_info { + const char *name; + u8 os; + uintptr_t load_addr; + uintptr_t entry_point; +#if CONFIG_IS_ENABLED(LOAD_FIT) || CONFIG_IS_ENABLED(LOAD_FIT_FULL) + void *fdt_addr; +#endif + u32 boot_device; + u32 size; + u32 flags; + void *arg; +#ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK + ulong dcrc_data; + ulong dcrc_length; + ulong dcrc; +#endif +}; + +/** + * Information required to load data from a device + * + * @dev: Pointer to the device, e.g. struct mmc * + * @priv: Private data for the device + * @bl_len: Block length for reading in bytes + * @filename: Name of the fit image file. + * @read: Function to call to read from the device + */ +struct spl_load_info { + void *dev; + void *priv; + int bl_len; + const char *filename; + /** + * read() - Read from device + * + * @load: Information about the load state + * @sector: Sector number to read from (each @load->bl_len bytes) + * @count: Number of sectors to read + * @buf: Buffer to read into + * @return number of sectors read, 0 on error + */ + ulong (*read)(struct spl_load_info *load, ulong sector, ulong count, + void *buf); +}; + +/* + * We need to know the position of U-Boot in memory so we can jump to it. We + * allow any U-Boot binary to be used (u-boot.bin, u-boot-nodtb.bin, + * u-boot.img), hence the '_any'. These is no checking here that the correct + * image is found. For example if u-boot.img is used we don't check that + * spl_parse_image_header() can parse a valid header. + * + * Similarly for SPL, so that TPL can jump to SPL. + */ +binman_sym_extern(ulong, u_boot_any, image_pos); +binman_sym_extern(ulong, u_boot_any, size); +binman_sym_extern(ulong, spl, image_pos); +binman_sym_extern(ulong, spl, size); + +/** + * spl_get_image_pos() - get the image position of the next phase + * + * This returns the image position to use to load the next phase of U-Boot + */ +ulong spl_get_image_pos(void); + +/** + * spl_get_image_size() - get the size of the next phase + * + * This returns the size to use to load the next phase of U-Boot + */ +ulong spl_get_image_size(void); + +/** + * spl_get_image_text_base() - get the text base of the next phase + * + * This returns the address that the next stage is linked to run at, i.e. + * CONFIG_SPL_TEXT_BASE or CONFIG_SYS_TEXT_BASE + * + * @return text-base address + */ +ulong spl_get_image_text_base(void); + +/** + * spl_load_simple_fit_skip_processing() - Hook to allow skipping the FIT + * image processing during spl_load_simple_fit(). + * + * Return true to skip FIT processing, false to preserve the full code flow + * of spl_load_simple_fit(). + */ +bool spl_load_simple_fit_skip_processing(void); + +/** + * spl_load_simple_fit() - Loads a fit image from a device. + * @spl_image: Image description to set up + * @info: Structure containing the information required to load data. + * @sector: Sector number where FIT image is located in the device + * @fdt: Pointer to the copied FIT header. + * + * Reads the FIT image @sector in the device. Loads u-boot image to + * specified load address and copies the dtb to end of u-boot image. + * Returns 0 on success. + */ +int spl_load_simple_fit(struct spl_image_info *spl_image, + struct spl_load_info *info, ulong sector, void *fdt); + +#define SPL_COPY_PAYLOAD_ONLY 1 +#define SPL_FIT_FOUND 2 + +/** + * spl_load_legacy_img() - Loads a legacy image from a device. + * @spl_image: Image description to set up + * @load: Structure containing the information required to load data. + * @header: Pointer to image header (including appended image) + * + * Reads an legacy image from the device. Loads u-boot image to + * specified load address. + * Returns 0 on success. + */ +int spl_load_legacy_img(struct spl_image_info *spl_image, + struct spl_load_info *load, ulong header); + +/** + * spl_load_imx_container() - Loads a imx container image from a device. + * @spl_image: Image description to set up + * @info: Structure containing the information required to load data. + * @sector: Sector number where container image is located in the device + * + * Reads the container image @sector in the device. Loads u-boot image to + * specified load address. + */ +int spl_load_imx_container(struct spl_image_info *spl_image, + struct spl_load_info *info, ulong sector); + +/* SPL common functions */ +void preloader_console_init(void); +u32 spl_boot_device(void); + +/** + * spl_mmc_boot_mode() - Lookup function for the mode of an MMC boot source. + * @boot_device: ID of the device which the MMC driver wants to read + * from. Common values are e.g. BOOT_DEVICE_MMC1, + * BOOT_DEVICE_MMC2, BOOT_DEVICE_MMC2_2. + * + * This function should return one of MMCSD_MODE_FS, MMCSD_MODE_EMMCBOOT, or + * MMCSD_MODE_RAW for each MMC boot source which is defined for the target. The + * boot_device parameter tells which device the MMC driver is interested in. + * + * If not overridden, it is weakly defined in common/spl/spl_mmc.c. + * + * Note: It is important to use the boot_device parameter instead of e.g. + * spl_boot_device() as U-Boot is not always loaded from the same device as SPL. + */ +u32 spl_mmc_boot_mode(const u32 boot_device); + +/** + * spl_mmc_boot_partition() - MMC partition to load U-Boot from. + * @boot_device: ID of the device which the MMC driver wants to load + * U-Boot from. + * + * This function should return the partition number which the SPL + * should load U-Boot from (on the given boot_device) when + * CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION is set. + * + * If not overridden, it is weakly defined in common/spl/spl_mmc.c. + */ +int spl_mmc_boot_partition(const u32 boot_device); +void spl_set_bd(void); + +/** + * spl_set_header_raw_uboot() - Set up a standard SPL image structure + * + * This sets up the given spl_image which the standard values obtained from + * config options: CONFIG_SYS_MONITOR_LEN, CONFIG_SYS_UBOOT_START, + * CONFIG_SYS_TEXT_BASE. + * + * @spl_image: Image description to set up + */ +void spl_set_header_raw_uboot(struct spl_image_info *spl_image); + +/** + * spl_parse_image_header() - parse the image header and set up info + * + * This parses the legacy image header information at @header and sets up + * @spl_image according to what is found. If no image header is found, then + * a raw image or bootz is assumed. If CONFIG_SPL_PANIC_ON_RAW_IMAGE is + * enabled, then this causes a panic. If CONFIG_SPL_RAW_IMAGE_SUPPORT is not + * enabled then U-Boot gives up. Otherwise U-Boot sets up the image using + * spl_set_header_raw_uboot(), or possibly the bootz header. + * + * @spl_image: Image description to set up + * @header image header to parse + * @return 0 if a header was correctly parsed, -ve on error + */ +int spl_parse_image_header(struct spl_image_info *spl_image, + const struct image_header *header); + +void spl_board_prepare_for_linux(void); +void spl_board_prepare_for_boot(void); +int spl_board_ubi_load_image(u32 boot_device); +int spl_board_boot_device(u32 boot_device); + +/** + * jump_to_image_linux() - Jump to a Linux kernel from SPL + * + * This jumps into a Linux kernel using the information in @spl_image. + * + * @spl_image: Image description to set up + */ +void __noreturn jump_to_image_linux(struct spl_image_info *spl_image); + +/** + * spl_start_uboot() - Check if SPL should start the kernel or U-Boot + * + * This is called by the various SPL loaders to determine whether the board + * wants to load the kernel or U-Boot. This function should be provided by + * the board. + * + * @return 0 if SPL should start the kernel, 1 if U-Boot must be started + */ +int spl_start_uboot(void); + +/** + * spl_display_print() - Display a board-specific message in SPL + * + * If CONFIG_SPL_DISPLAY_PRINT is enabled, U-Boot will call this function + * immediately after displaying the SPL console banner ("U-Boot SPL ..."). + * This function should be provided by the board. + */ +void spl_display_print(void); + +/** + * struct spl_boot_device - Describes a boot device used by SPL + * + * @boot_device: A number indicating the BOOT_DEVICE type. There are various + * BOOT_DEVICE... #defines and enums in U-Boot and they are not consistently + * numbered. + * @boot_device_name: Named boot device, or NULL if none. + * + * Note: Additional fields can be added here, bearing in mind that SPL is + * size-sensitive and common fields will be present on all boards. This + * struct can also be used to return additional information about the load + * process if that becomes useful. + */ +struct spl_boot_device { + uint boot_device; + const char *boot_device_name; +}; + +/** + * Holds information about a way of loading an SPL image + * + * @name: User-friendly name for this method (e.g. "MMC") + * @boot_device: Boot device that this loader supports + * @load_image: Function to call to load image + */ +struct spl_image_loader { +#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT + const char *name; +#endif + uint boot_device; + /** + * load_image() - Load an SPL image + * + * @spl_image: place to put image information + * @bootdev: describes the boot device to load from + */ + int (*load_image)(struct spl_image_info *spl_image, + struct spl_boot_device *bootdev); +}; + +/* Declare an SPL image loader */ +#define SPL_LOAD_IMAGE(__name) \ + ll_entry_declare(struct spl_image_loader, __name, spl_image_loader) + +/* + * _priority is the priority of this method, 0 meaning it will be the top + * choice for this device, 9 meaning it is the bottom choice. + * _boot_device is the BOOT_DEVICE_... value + * _method is the load_image function to call + */ +#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT +#define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \ + SPL_LOAD_IMAGE(_boot_device ## _priority ## _method) = { \ + .name = _name, \ + .boot_device = _boot_device, \ + .load_image = _method, \ + } +#else +#define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \ + SPL_LOAD_IMAGE(_boot_device ## _priority ## _method) = { \ + .boot_device = _boot_device, \ + .load_image = _method, \ + } +#endif + +/* SPL FAT image functions */ +int spl_load_image_fat(struct spl_image_info *spl_image, + struct blk_desc *block_dev, int partition, + const char *filename); +int spl_load_image_fat_os(struct spl_image_info *spl_image, + struct blk_desc *block_dev, int partition); + +void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image); + +/* SPL EXT image functions */ +int spl_load_image_ext(struct spl_image_info *spl_image, + struct blk_desc *block_dev, int partition, + const char *filename); +int spl_load_image_ext_os(struct spl_image_info *spl_image, + struct blk_desc *block_dev, int partition); + +/** + * spl_early_init() - Set up device tree and driver model in SPL if enabled + * + * Call this function in board_init_f() if you want to use device tree and + * driver model early, before board_init_r() is called. + * + * If this is not called, then driver model will be inactive in SPL's + * board_init_f(), and no device tree will be available. + */ +int spl_early_init(void); + +/** + * spl_init() - Set up device tree and driver model in SPL if enabled + * + * You can optionally call spl_early_init(), then optionally call spl_init(). + * This function will be called from board_init_r() if not called earlier. + * + * Both spl_early_init() and spl_init() perform a similar function except that + * the latter will not set up the malloc() area if + * CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN is enabled, since it is assumed to + * already be done by a calll to spl_relocate_stack_gd() before board_init_r() + * is reached. + * + * This function will be called from board_init_r() if not called earlier. + * + * If this is not called, then driver model will be inactive in SPL's + * board_init_f(), and no device tree will be available. + */ +int spl_init(void); + +#ifdef CONFIG_SPL_BOARD_INIT +void spl_board_init(void); +#endif + +/** + * spl_was_boot_source() - check if U-Boot booted from SPL + * + * This will normally be true, but if U-Boot jumps to second U-Boot, it will + * be false. This should be implemented by board-specific code. + * + * @return true if U-Boot booted from SPL, else false + */ +bool spl_was_boot_source(void); + +/** + * spl_dfu_cmd- run dfu command with chosen mmc device interface + * @param usb_index - usb controller number + * @param mmc_dev - mmc device nubmer + * + * @return 0 on success, otherwise error code + */ +int spl_dfu_cmd(int usbctrl, char *dfu_alt_info, char *interface, char *devstr); + +int spl_mmc_load_image(struct spl_image_info *spl_image, + struct spl_boot_device *bootdev); + +/** + * spl_mmc_load() - Load an image file from MMC/SD media + * + * @param spl_image Image data filled in by loading process + * @param bootdev Describes which device to load from + * @param filename Name of file to load (in FS mode) + * @param raw_part Partition to load from (in RAW mode) + * @param raw_sect Sector to load from (in RAW mode) + * + * @return 0 on success, otherwise error code + */ +int spl_mmc_load(struct spl_image_info *spl_image, + struct spl_boot_device *bootdev, + const char *filename, + int raw_part, + unsigned long raw_sect); + +/** + * spl_usb_load() - Load an image file from USB mass storage + * + * @param spl_image Image data filled in by loading process + * @param bootdev Describes which device to load from + * @param raw_part Fat partition to load from + * @param filename Name of file to load + * + * @return 0 on success, otherwise error code + */ +int spl_usb_load(struct spl_image_info *spl_image, + struct spl_boot_device *bootdev, + int partition, const char *filename); + +int spl_ymodem_load_image(struct spl_image_info *spl_image, + struct spl_boot_device *bootdev); + +/** + * spl_invoke_atf - boot using an ARM trusted firmware image + */ +void spl_invoke_atf(struct spl_image_info *spl_image); + +/** + * bl2_plat_get_bl31_params() - return params for bl31. + * @bl32_entry: address of BL32 executable (secure) + * @bl33_entry: address of BL33 executable (non secure) + * @fdt_addr: address of Flat Device Tree + * + * This is a weak function which might be overridden by the board code. By + * default it will just call bl2_plat_get_bl31_params_default(). + * + * If you just want to manipulate or add some parameters, you can override + * this function, call bl2_plat_get_bl31_params_default and operate on the + * returned bl31 params. + * + * Return: bl31 params structure pointer + */ +struct bl31_params *bl2_plat_get_bl31_params(uintptr_t bl32_entry, + uintptr_t bl33_entry, + uintptr_t fdt_addr); + +/** + * bl2_plat_get_bl31_params_default() - prepare params for bl31. + * @bl32_entry: address of BL32 executable (secure) + * @bl33_entry: address of BL33 executable (non secure) + * @fdt_addr: address of Flat Device Tree + * + * This is the default implementation of bl2_plat_get_bl31_params(). It assigns + * a pointer to the memory that the platform has kept aside to pass platform + * specific and trusted firmware related information to BL31. This memory is + * allocated by allocating memory to bl2_to_bl31_params_mem structure which is + * a superset of all the structure whose information is passed to BL31 + * + * NOTE: The memory is statically allocated, thus this function should be + * called only once. All subsequent calls will overwrite any changes. + * + * Return: bl31 params structure pointer + */ +struct bl31_params *bl2_plat_get_bl31_params_default(uintptr_t bl32_entry, + uintptr_t bl33_entry, + uintptr_t fdt_addr); + +/** + * bl2_plat_get_bl31_params_v2() - return params for bl31 + * @bl32_entry: address of BL32 executable (secure) + * @bl33_entry: address of BL33 executable (non secure) + * @fdt_addr: address of Flat Device Tree + * + * This function does the same as bl2_plat_get_bl31_params() except that is is + * used for the new LOAD_IMAGE_V2 option, which uses a slightly different + * method to pass the parameters. + * + * Return: bl31 params structure pointer + */ +struct bl_params *bl2_plat_get_bl31_params_v2(uintptr_t bl32_entry, + uintptr_t bl33_entry, + uintptr_t fdt_addr); + +/** + * bl2_plat_get_bl31_params_v2_default() - prepare params for bl31. + * @bl32_entry: address of BL32 executable (secure) + * @bl33_entry: address of BL33 executable (non secure) + * @fdt_addr: address of Flat Device Tree + * + * This is the default implementation of bl2_plat_get_bl31_params_v2(). It + * prepares the linked list of the bl31 params, populates the image types and + * set the entry points for bl32 and bl33 (if available). + * + * NOTE: The memory is statically allocated, thus this function should be + * called only once. All subsequent calls will overwrite any changes. + * + * Return: bl31 params structure pointer + */ +struct bl_params *bl2_plat_get_bl31_params_v2_default(uintptr_t bl32_entry, + uintptr_t bl33_entry, + uintptr_t fdt_addr); +/** + * spl_optee_entry - entry function for optee + * + * args defind in op-tee project + * https://github.com/OP-TEE/optee_os/ + * core/arch/arm/kernel/generic_entry_a32.S + * @arg0: pagestore + * @arg1: (ARMv7 standard bootarg #1) + * @arg2: device tree address, (ARMv7 standard bootarg #2) + * @arg3: non-secure entry address (ARMv7 bootarg #0) + */ +void spl_optee_entry(void *arg0, void *arg1, void *arg2, void *arg3); + +/** + * spl_invoke_opensbi - boot using a RISC-V OpenSBI image + */ +void spl_invoke_opensbi(struct spl_image_info *spl_image); + +/** + * board_return_to_bootrom - allow for boards to continue with the boot ROM + * + * If a board (e.g. the Rockchip RK3368 boards) provide some + * supporting functionality for SPL in their boot ROM and the SPL + * stage wants to return to the ROM code to continue booting, boards + * can implement 'board_return_to_bootrom'. + */ +int board_return_to_bootrom(struct spl_image_info *spl_image, + struct spl_boot_device *bootdev); + +/** + * board_spl_fit_post_load - allow process images after loading finished + * @fit: Pointer to a valid Flattened Image Tree blob + */ +void board_spl_fit_post_load(const void *fit); + +/** + * board_spl_fit_size_align - specific size align before processing payload + * + */ +ulong board_spl_fit_size_align(ulong size); + +/** + * spl_perform_fixups() - arch/board-specific callback before processing + * the boot-payload + */ +void spl_perform_fixups(struct spl_image_info *spl_image); + +/* + * spl_get_load_buffer() - get buffer for loading partial image data + * + * Returns memory area which can be populated by partial image data, + * ie. uImage or fitImage header. + */ +struct image_header *spl_get_load_buffer(ssize_t offset, size_t size); + +void spl_save_restore_data(void); +#endif |