/* * (C) Copyright 2012 * Texas Instruments, <www.ti.com> * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef _SPL_H_ #define _SPL_H_ /* Platform-specific defines */ #include <linux/compiler.h> #include <asm/spl.h> /* 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 spl_image_info { const char *name; u8 os; u32 load_addr; u32 entry_point; u32 size; u32 flags; }; #define SPL_COPY_PAYLOAD_ONLY 1 extern struct spl_image_info spl_image; /* SPL common functions */ void preloader_console_init(void); u32 spl_boot_device(void); u32 spl_boot_mode(void); void spl_set_header_raw_uboot(void); void spl_parse_image_header(const struct image_header *header); void spl_board_prepare_for_linux(void); void __noreturn jump_to_image_linux(void *arg); int spl_start_uboot(void); void spl_display_print(void); /* NAND SPL functions */ int spl_nand_load_image(void); /* OneNAND SPL functions */ int spl_onenand_load_image(void); /* NOR SPL functions */ int spl_nor_load_image(void); /* MMC SPL functions */ int spl_mmc_load_image(u32 boot_device); /* YMODEM SPL functions */ int spl_ymodem_load_image(void); /* SPI SPL functions */ int spl_spi_load_image(void); /* Ethernet SPL functions */ int spl_net_load_image(const char *device); /* USB SPL functions */ int spl_usb_load_image(void); /* SATA SPL functions */ int spl_sata_load_image(void); /* SPL FAT image functions */ int spl_load_image_fat(block_dev_desc_t *block_dev, int partition, const char *filename); int spl_load_image_fat_os(block_dev_desc_t *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(block_dev_desc_t *block_dev, int partition, const char *filename); int spl_load_image_ext_os(block_dev_desc_t *block_dev, int partition); /** * spl_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. 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); #endif