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 {
33 * Information required to load data from a device
35 * @dev: Pointer to the device, e.g. struct mmc *
36 * @priv: Private data for the device
37 * @bl_len: Block length for reading in bytes
38 * @read: Function to call to read from the device
40 struct spl_load_info {
44 ulong (*read)(struct spl_load_info *load, ulong sector, ulong count,
48 int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fdt);
50 #define SPL_COPY_PAYLOAD_ONLY 1
52 extern struct spl_image_info spl_image;
54 /* SPL common functions */
55 void preloader_console_init(void);
56 u32 spl_boot_device(void);
57 u32 spl_boot_mode(void);
58 void spl_set_header_raw_uboot(void);
59 int spl_parse_image_header(const struct image_header *header);
60 void spl_board_prepare_for_linux(void);
61 void spl_board_prepare_for_boot(void);
62 void __noreturn jump_to_image_linux(void *arg);
63 int spl_start_uboot(void);
64 void spl_display_print(void);
66 /* NAND SPL functions */
67 int spl_nand_load_image(void);
69 /* OneNAND SPL functions */
70 int spl_onenand_load_image(void);
72 /* NOR SPL functions */
73 int spl_nor_load_image(void);
75 /* MMC SPL functions */
76 int spl_mmc_load_image(u32 boot_device);
78 /* YMODEM SPL functions */
79 int spl_ymodem_load_image(void);
81 /* SPI SPL functions */
82 int spl_spi_load_image(void);
84 /* Ethernet SPL functions */
85 int spl_net_load_image(const char *device);
87 /* USB SPL functions */
88 int spl_usb_load_image(void);
90 /* SATA SPL functions */
91 int spl_sata_load_image(void);
93 /* SPL FAT image functions */
94 int spl_load_image_fat(struct blk_desc *block_dev, int partition,
95 const char *filename);
96 int spl_load_image_fat_os(struct blk_desc *block_dev, int partition);
98 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image);
100 /* SPL EXT image functions */
101 int spl_load_image_ext(struct blk_desc *block_dev, int partition,
102 const char *filename);
103 int spl_load_image_ext_os(struct blk_desc *block_dev, int partition);
106 * spl_init() - Set up device tree and driver model in SPL if enabled
108 * Call this function in board_init_f() if you want to use device tree and
109 * driver model early, before board_init_r() is called. This function will
110 * be called from board_init_r() if not called earlier.
112 * If this is not called, then driver model will be inactive in SPL's
113 * board_init_f(), and no device tree will be available.
117 #ifdef CONFIG_SPL_BOARD_INIT
118 void spl_board_init(void);
122 * spl_was_boot_source() - check if U-Boot booted from SPL
124 * This will normally be true, but if U-Boot jumps to second U-Boot, it will
125 * be false. This should be implemented by board-specific code.
127 * @return true if U-Boot booted from SPL, else false
129 bool spl_was_boot_source(void);