1 /* 2 * (C) Copyright 2012 3 * Texas Instruments, <www.ti.com> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 #ifndef _SPL_H_ 8 #define _SPL_H_ 9 10 /* Platform-specific defines */ 11 #include <linux/compiler.h> 12 #include <asm/spl.h> 13 14 /* Value in r0 indicates we booted from U-Boot */ 15 #define UBOOT_NOT_LOADED_FROM_SPL 0x13578642 16 17 /* Boot type */ 18 #define MMCSD_MODE_UNDEFINED 0 19 #define MMCSD_MODE_RAW 1 20 #define MMCSD_MODE_FS 2 21 #define MMCSD_MODE_EMMCBOOT 3 22 23 struct spl_image_info { 24 const char *name; 25 u8 os; 26 u32 load_addr; 27 u32 entry_point; 28 u32 size; 29 u32 flags; 30 }; 31 32 #define SPL_COPY_PAYLOAD_ONLY 1 33 34 extern struct spl_image_info spl_image; 35 36 /* SPL common functions */ 37 void preloader_console_init(void); 38 u32 spl_boot_device(void); 39 u32 spl_boot_mode(void); 40 void spl_set_header_raw_uboot(void); 41 void spl_parse_image_header(const struct image_header *header); 42 void spl_board_prepare_for_linux(void); 43 void __noreturn jump_to_image_linux(void *arg); 44 int spl_start_uboot(void); 45 void spl_display_print(void); 46 47 /* NAND SPL functions */ 48 void spl_nand_load_image(void); 49 50 /* OneNAND SPL functions */ 51 void spl_onenand_load_image(void); 52 53 /* NOR SPL functions */ 54 void spl_nor_load_image(void); 55 56 /* MMC SPL functions */ 57 void spl_mmc_load_image(void); 58 59 /* YMODEM SPL functions */ 60 void spl_ymodem_load_image(void); 61 62 /* SPI SPL functions */ 63 void spl_spi_load_image(void); 64 65 /* Ethernet SPL functions */ 66 void spl_net_load_image(const char *device); 67 68 /* USB SPL functions */ 69 void spl_usb_load_image(void); 70 71 /* SATA SPL functions */ 72 void spl_sata_load_image(void); 73 74 /* SPL FAT image functions */ 75 int spl_load_image_fat(block_dev_desc_t *block_dev, int partition, const char *filename); 76 int spl_load_image_fat_os(block_dev_desc_t *block_dev, int partition); 77 78 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image); 79 80 /* SPL EXT image functions */ 81 int spl_load_image_ext(block_dev_desc_t *block_dev, int partition, const char *filename); 82 int spl_load_image_ext_os(block_dev_desc_t *block_dev, int partition); 83 84 #ifdef CONFIG_SPL_BOARD_INIT 85 void spl_board_init(void); 86 #endif 87 88 /** 89 * spl_was_boot_source() - check if U-Boot booted from SPL 90 * 91 * This will normally be true, but if U-Boot jumps to second U-Boot, it will 92 * be false. This should be implemented by board-specific code. 93 * 94 * @return true if U-Boot booted from SPL, else false 95 */ 96 bool spl_was_boot_source(void); 97 98 #endif 99