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 void spl_parse_image_header(const struct image_header *header);
60 void spl_board_prepare_for_linux(void);
61 void __noreturn jump_to_image_linux(void *arg);
62 int spl_start_uboot(void);
63 void spl_display_print(void);
65 /* NAND SPL functions */
66 int spl_nand_load_image(void);
68 /* OneNAND SPL functions */
69 int spl_onenand_load_image(void);
71 /* NOR SPL functions */
72 int spl_nor_load_image(void);
74 /* MMC SPL functions */
75 int spl_mmc_load_image(u32 boot_device);
77 /* YMODEM SPL functions */
78 int spl_ymodem_load_image(void);
80 /* SPI SPL functions */
81 int spl_spi_load_image(void);
83 /* Ethernet SPL functions */
84 int spl_net_load_image(const char *device);
86 /* USB SPL functions */
87 int spl_usb_load_image(void);
89 /* SATA SPL functions */
90 int spl_sata_load_image(void);
92 /* SPL FAT image functions */
93 int spl_load_image_fat(struct blk_desc *block_dev, int partition,
94 const char *filename);
95 int spl_load_image_fat_os(struct blk_desc *block_dev, int partition);
97 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image);
99 /* SPL EXT image functions */
100 int spl_load_image_ext(struct blk_desc *block_dev, int partition,
101 const char *filename);
102 int spl_load_image_ext_os(struct blk_desc *block_dev, int partition);
105 * spl_init() - Set up device tree and driver model in SPL if enabled
107 * Call this function in board_init_f() if you want to use device tree and
108 * driver model early, before board_init_r() is called. This function will
109 * be called from board_init_r() if not called earlier.
111 * If this is not called, then driver model will be inactive in SPL's
112 * board_init_f(), and no device tree will be available.
116 #ifdef CONFIG_SPL_BOARD_INIT
117 void spl_board_init(void);
121 * spl_was_boot_source() - check if U-Boot booted from SPL
123 * This will normally be true, but if U-Boot jumps to second U-Boot, it will
124 * be false. This should be implemented by board-specific code.
126 * @return true if U-Boot booted from SPL, else false
128 bool spl_was_boot_source(void);