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 * @filename: Name of the fit image file.
39 * @read: Function to call to read from the device
41 struct spl_load_info {
46 ulong (*read)(struct spl_load_info *load, ulong sector, ulong count,
51 * spl_load_simple_fit() - Loads a fit image from a device.
52 * @info: Structure containing the information required to load data.
53 * @sector: Sector number where FIT image is located in the device
54 * @fdt: Pointer to the copied FIT header.
56 * Reads the FIT image @sector in the device. Loads u-boot image to
57 * specified load address and copies the dtb to end of u-boot image.
58 * Returns 0 on success.
60 int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fdt);
62 #define SPL_COPY_PAYLOAD_ONLY 1
64 extern struct spl_image_info spl_image;
66 /* SPL common functions */
67 void preloader_console_init(void);
68 u32 spl_boot_device(void);
69 u32 spl_boot_mode(void);
70 void spl_set_header_raw_uboot(void);
71 int spl_parse_image_header(const struct image_header *header);
72 void spl_board_prepare_for_linux(void);
73 void spl_board_prepare_for_boot(void);
74 void __noreturn jump_to_image_linux(void *arg);
75 int spl_start_uboot(void);
76 void spl_display_print(void);
78 /* NAND SPL functions */
79 int spl_nand_load_image(void);
81 /* OneNAND SPL functions */
82 int spl_onenand_load_image(void);
84 /* NOR SPL functions */
85 int spl_nor_load_image(void);
87 /* MMC SPL functions */
88 int spl_mmc_load_image(u32 boot_device);
90 /* YMODEM SPL functions */
91 int spl_ymodem_load_image(void);
93 /* SPI SPL functions */
94 int spl_spi_load_image(void);
96 /* Ethernet SPL functions */
97 int spl_net_load_image(const char *device);
99 /* USB SPL functions */
100 int spl_usb_load_image(void);
102 /* SATA SPL functions */
103 int spl_sata_load_image(void);
105 /* SPL FAT image functions */
106 int spl_load_image_fat(struct blk_desc *block_dev, int partition,
107 const char *filename);
108 int spl_load_image_fat_os(struct blk_desc *block_dev, int partition);
110 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image);
112 /* SPL EXT image functions */
113 int spl_load_image_ext(struct blk_desc *block_dev, int partition,
114 const char *filename);
115 int spl_load_image_ext_os(struct blk_desc *block_dev, int partition);
118 * spl_init() - Set up device tree and driver model in SPL if enabled
120 * Call this function in board_init_f() if you want to use device tree and
121 * driver model early, before board_init_r() is called. This function will
122 * be called from board_init_r() if not called earlier.
124 * If this is not called, then driver model will be inactive in SPL's
125 * board_init_f(), and no device tree will be available.
129 #ifdef CONFIG_SPL_BOARD_INIT
130 void spl_board_init(void);
134 * spl_was_boot_source() - check if U-Boot booted from SPL
136 * This will normally be true, but if U-Boot jumps to second U-Boot, it will
137 * be false. This should be implemented by board-specific code.
139 * @return true if U-Boot booted from SPL, else false
141 bool spl_was_boot_source(void);