3 * Texas Instruments, <www.ti.com>
5 * SPDX-License-Identifier: GPL-2.0+
10 /* Platform-specific defines */
11 #include <linux/compiler.h>
14 /* Value in r0 indicates we booted from U-Boot */
15 #define UBOOT_NOT_LOADED_FROM_SPL 0x13578642
18 #define MMCSD_MODE_UNDEFINED 0
19 #define MMCSD_MODE_RAW 1
20 #define MMCSD_MODE_FS 2
21 #define MMCSD_MODE_EMMCBOOT 3
23 struct spl_image_info {
32 #define SPL_COPY_PAYLOAD_ONLY 1
34 extern struct spl_image_info spl_image;
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);
47 /* NAND SPL functions */
48 int spl_nand_load_image(void);
50 /* OneNAND SPL functions */
51 int spl_onenand_load_image(void);
53 /* NOR SPL functions */
54 int spl_nor_load_image(void);
56 /* MMC SPL functions */
57 int spl_mmc_load_image(u32 boot_device);
59 /* YMODEM SPL functions */
60 int spl_ymodem_load_image(void);
62 /* SPI SPL functions */
63 int spl_spi_load_image(void);
65 /* Ethernet SPL functions */
66 int spl_net_load_image(const char *device);
68 /* USB SPL functions */
69 int spl_usb_load_image(void);
71 /* SATA SPL functions */
72 int spl_sata_load_image(void);
74 /* SPL FAT image functions */
75 int spl_load_image_fat(struct blk_desc *block_dev, int partition,
76 const char *filename);
77 int spl_load_image_fat_os(struct blk_desc *block_dev, int partition);
79 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image);
81 /* SPL EXT image functions */
82 int spl_load_image_ext(struct blk_desc *block_dev, int partition,
83 const char *filename);
84 int spl_load_image_ext_os(struct blk_desc *block_dev, int partition);
87 * spl_init() - Set up device tree and driver model in SPL if enabled
89 * Call this function in board_init_f() if you want to use device tree and
90 * driver model early, before board_init_r() is called. This function will
91 * be called from board_init_r() if not called earlier.
93 * If this is not called, then driver model will be inactive in SPL's
94 * board_init_f(), and no device tree will be available.
98 #ifdef CONFIG_SPL_BOARD_INIT
99 void spl_board_init(void);
103 * spl_was_boot_source() - check if U-Boot booted from SPL
105 * This will normally be true, but if U-Boot jumps to second U-Boot, it will
106 * be false. This should be implemented by board-specific code.
108 * @return true if U-Boot booted from SPL, else false
110 bool spl_was_boot_source(void);