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47f7bcae TR |
1 | /* |
2 | * (C) Copyright 2012 | |
3 | * Texas Instruments, <www.ti.com> | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
47f7bcae TR |
6 | */ |
7 | #ifndef _SPL_H_ | |
8 | #define _SPL_H_ | |
9 | ||
10 | /* Platform-specific defines */ | |
6507f133 | 11 | #include <linux/compiler.h> |
47f7bcae TR |
12 | #include <asm/spl.h> |
13 | ||
32ba8952 SG |
14 | /* Value in r0 indicates we booted from U-Boot */ |
15 | #define UBOOT_NOT_LOADED_FROM_SPL 0x13578642 | |
773b5940 | 16 | |
47f7bcae TR |
17 | /* Boot type */ |
18 | #define MMCSD_MODE_UNDEFINED 0 | |
19 | #define MMCSD_MODE_RAW 1 | |
205b4f33 | 20 | #define MMCSD_MODE_FS 2 |
7dbe63bc | 21 | #define MMCSD_MODE_EMMCBOOT 3 |
47f7bcae TR |
22 | |
23 | struct spl_image_info { | |
24 | const char *name; | |
25 | u8 os; | |
26 | u32 load_addr; | |
27 | u32 entry_point; | |
28 | u32 size; | |
022b4975 | 29 | u32 flags; |
47f7bcae TR |
30 | }; |
31 | ||
f1dcee59 SG |
32 | /* |
33 | * Information required to load data from a device | |
34 | * | |
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 | |
39 | */ | |
40 | struct spl_load_info { | |
41 | void *dev; | |
42 | void *priv; | |
43 | int bl_len; | |
44 | ulong (*read)(struct spl_load_info *load, ulong sector, ulong count, | |
45 | void *buf); | |
46 | }; | |
47 | ||
48 | int spl_load_simple_fit(struct spl_load_info *info, ulong sector, void *fdt); | |
49 | ||
022b4975 SR |
50 | #define SPL_COPY_PAYLOAD_ONLY 1 |
51 | ||
47f7bcae | 52 | extern struct spl_image_info spl_image; |
47f7bcae TR |
53 | |
54 | /* SPL common functions */ | |
55 | void preloader_console_init(void); | |
56 | u32 spl_boot_device(void); | |
57 | u32 spl_boot_mode(void); | |
0c3117b1 | 58 | void spl_set_header_raw_uboot(void); |
7e0f2267 | 59 | int spl_parse_image_header(const struct image_header *header); |
47f7bcae | 60 | void spl_board_prepare_for_linux(void); |
3a3b9147 | 61 | void spl_board_prepare_for_boot(void); |
6507f133 | 62 | void __noreturn jump_to_image_linux(void *arg); |
47f7bcae TR |
63 | int spl_start_uboot(void); |
64 | void spl_display_print(void); | |
65 | ||
66 | /* NAND SPL functions */ | |
36afd451 | 67 | int spl_nand_load_image(void); |
47f7bcae | 68 | |
6000992e | 69 | /* OneNAND SPL functions */ |
36afd451 | 70 | int spl_onenand_load_image(void); |
6000992e | 71 | |
33d34646 | 72 | /* NOR SPL functions */ |
36afd451 | 73 | int spl_nor_load_image(void); |
33d34646 | 74 | |
47f7bcae | 75 | /* MMC SPL functions */ |
a1e56cf6 | 76 | int spl_mmc_load_image(u32 boot_device); |
47f7bcae TR |
77 | |
78 | /* YMODEM SPL functions */ | |
36afd451 | 79 | int spl_ymodem_load_image(void); |
47f7bcae TR |
80 | |
81 | /* SPI SPL functions */ | |
36afd451 | 82 | int spl_spi_load_image(void); |
47f7bcae | 83 | |
7ac2fe2d | 84 | /* Ethernet SPL functions */ |
36afd451 | 85 | int spl_net_load_image(const char *device); |
7ac2fe2d | 86 | |
8cffe5bd | 87 | /* USB SPL functions */ |
36afd451 | 88 | int spl_usb_load_image(void); |
8cffe5bd | 89 | |
fff40a7e | 90 | /* SATA SPL functions */ |
36afd451 | 91 | int spl_sata_load_image(void); |
fff40a7e | 92 | |
773b5940 | 93 | /* SPL FAT image functions */ |
4101f687 SG |
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); | |
773b5940 | 97 | |
ce048224 JH |
98 | void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image); |
99 | ||
592f9222 | 100 | /* SPL EXT image functions */ |
4101f687 SG |
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); | |
592f9222 | 104 | |
070d00b8 SG |
105 | /** |
106 | * spl_init() - Set up device tree and driver model in SPL if enabled | |
107 | * | |
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. | |
111 | * | |
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. | |
114 | */ | |
115 | int spl_init(void); | |
116 | ||
47f7bcae TR |
117 | #ifdef CONFIG_SPL_BOARD_INIT |
118 | void spl_board_init(void); | |
119 | #endif | |
32ba8952 SG |
120 | |
121 | /** | |
122 | * spl_was_boot_source() - check if U-Boot booted from SPL | |
123 | * | |
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. | |
126 | * | |
127 | * @return true if U-Boot booted from SPL, else false | |
128 | */ | |
129 | bool spl_was_boot_source(void); | |
130 | ||
47f7bcae | 131 | #endif |