1 /* SPDX-License-Identifier: GPL-2.0+ */
4 * Texas Instruments, <www.ti.com>
9 #include <binman_sym.h>
11 /* Platform-specific defines */
12 #include <linux/compiler.h>
16 /* Value in r0 indicates we booted from U-Boot */
17 #define UBOOT_NOT_LOADED_FROM_SPL 0x13578642
20 #define MMCSD_MODE_UNDEFINED 0
21 #define MMCSD_MODE_RAW 1
22 #define MMCSD_MODE_FS 2
23 #define MMCSD_MODE_EMMCBOOT 3
26 * u_boot_first_phase() - check if this is the first U-Boot phase
28 * U-Boot has up to three phases: TPL, SPL and U-Boot proper. Depending on the
29 * build flags we can determine whether the current build is for the first
30 * phase of U-Boot or not. If there is no SPL, then this is U-Boot proper. If
31 * there is SPL but no TPL, the the first phase is SPL. If there is TPL, then
32 * it is the first phase.
34 * @returns true if this is the first phase of U-Boot
37 static inline bool u_boot_first_phase(void)
39 if (IS_ENABLED(CONFIG_TPL)) {
40 if (IS_ENABLED(CONFIG_TPL_BUILD))
42 } else if (IS_ENABLED(CONFIG_SPL)) {
43 if (IS_ENABLED(CONFIG_SPL_BUILD))
59 * spl_phase() - Find out the phase of U-Boot
61 * This can be used to avoid #ifdef logic and use if() instead.
63 * For example, to include code only in TPL, you might do:
65 * #ifdef CONFIG_TPL_BUILD
69 * but with this you can use:
71 * if (spl_phase() == PHASE_TPL) {
75 * To include code only in SPL, you might do:
77 * #if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD)
81 * but with this you can use:
83 * if (spl_phase() == PHASE_SPL) {
87 * To include code only in U-Boot proper, you might do:
89 * #ifndef CONFIG_SPL_BUILD
93 * but with this you can use:
95 * if (spl_phase() == PHASE_U_BOOT) {
99 * @return U-Boot phase
101 static inline enum u_boot_phase spl_phase(void)
103 #ifdef CONFIG_TPL_BUILD
105 #elif CONFIG_SPL_BUILD
112 /* A string name for SPL or TPL */
113 #ifdef CONFIG_SPL_BUILD
114 # ifdef CONFIG_TPL_BUILD
115 # define SPL_TPL_NAME "TPL"
117 # define SPL_TPL_NAME "SPL"
119 # define SPL_TPL_PROMPT SPL_TPL_NAME ": "
121 # define SPL_TPL_NAME ""
122 # define SPL_TPL_PROMPT ""
125 struct spl_image_info {
129 uintptr_t entry_point;
130 #if CONFIG_IS_ENABLED(LOAD_FIT) || CONFIG_IS_ENABLED(LOAD_FIT_FULL)
137 #ifdef CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK
145 * Information required to load data from a device
147 * @dev: Pointer to the device, e.g. struct mmc *
148 * @priv: Private data for the device
149 * @bl_len: Block length for reading in bytes
150 * @filename: Name of the fit image file.
151 * @read: Function to call to read from the device
153 struct spl_load_info {
157 const char *filename;
158 ulong (*read)(struct spl_load_info *load, ulong sector, ulong count,
163 * We need to know the position of U-Boot in memory so we can jump to it. We
164 * allow any U-Boot binary to be used (u-boot.bin, u-boot-nodtb.bin,
165 * u-boot.img), hence the '_any'. These is no checking here that the correct
166 * image is found. For * example if u-boot.img is used we don't check that
167 * spl_parse_image_header() can parse a valid header.
169 binman_sym_extern(ulong, u_boot_any, image_pos);
172 * spl_load_simple_fit_skip_processing() - Hook to allow skipping the FIT
173 * image processing during spl_load_simple_fit().
175 * Return true to skip FIT processing, false to preserve the full code flow
176 * of spl_load_simple_fit().
178 bool spl_load_simple_fit_skip_processing(void);
181 * spl_load_simple_fit() - Loads a fit image from a device.
182 * @spl_image: Image description to set up
183 * @info: Structure containing the information required to load data.
184 * @sector: Sector number where FIT image is located in the device
185 * @fdt: Pointer to the copied FIT header.
187 * Reads the FIT image @sector in the device. Loads u-boot image to
188 * specified load address and copies the dtb to end of u-boot image.
189 * Returns 0 on success.
191 int spl_load_simple_fit(struct spl_image_info *spl_image,
192 struct spl_load_info *info, ulong sector, void *fdt);
194 #define SPL_COPY_PAYLOAD_ONLY 1
195 #define SPL_FIT_FOUND 2
197 /* SPL common functions */
198 void preloader_console_init(void);
199 u32 spl_boot_device(void);
200 u32 spl_boot_mode(const u32 boot_device);
201 int spl_boot_partition(const u32 boot_device);
202 void spl_set_bd(void);
205 * spl_set_header_raw_uboot() - Set up a standard SPL image structure
207 * This sets up the given spl_image which the standard values obtained from
208 * config options: CONFIG_SYS_MONITOR_LEN, CONFIG_SYS_UBOOT_START,
209 * CONFIG_SYS_TEXT_BASE.
211 * @spl_image: Image description to set up
213 void spl_set_header_raw_uboot(struct spl_image_info *spl_image);
216 * spl_parse_image_header() - parse the image header and set up info
218 * This parses the legacy image header information at @header and sets up
219 * @spl_image according to what is found. If no image header is found, then
220 * a raw image or bootz is assumed. If CONFIG_SPL_PANIC_ON_RAW_IMAGE is
221 * enabled, then this causes a panic. If CONFIG_SPL_RAW_IMAGE_SUPPORT is not
222 * enabled then U-Boot gives up. Otherwise U-Boot sets up the image using
223 * spl_set_header_raw_uboot(), or possibly the bootz header.
225 * @spl_image: Image description to set up
226 * @header image header to parse
227 * @return 0 if a header was correctly parsed, -ve on error
229 int spl_parse_image_header(struct spl_image_info *spl_image,
230 const struct image_header *header);
232 void spl_board_prepare_for_linux(void);
233 void spl_board_prepare_for_boot(void);
234 int spl_board_ubi_load_image(u32 boot_device);
237 * jump_to_image_linux() - Jump to a Linux kernel from SPL
239 * This jumps into a Linux kernel using the information in @spl_image.
241 * @spl_image: Image description to set up
243 void __noreturn jump_to_image_linux(struct spl_image_info *spl_image);
246 * spl_start_uboot() - Check if SPL should start the kernel or U-Boot
248 * This is called by the various SPL loaders to determine whether the board
249 * wants to load the kernel or U-Boot. This function should be provided by
252 * @return 0 if SPL should start the kernel, 1 if U-Boot must be started
254 int spl_start_uboot(void);
257 * spl_display_print() - Display a board-specific message in SPL
259 * If CONFIG_SPL_DISPLAY_PRINT is enabled, U-Boot will call this function
260 * immediately after displaying the SPL console banner ("U-Boot SPL ...").
261 * This function should be provided by the board.
263 void spl_display_print(void);
266 * struct spl_boot_device - Describes a boot device used by SPL
268 * @boot_device: A number indicating the BOOT_DEVICE type. There are various
269 * BOOT_DEVICE... #defines and enums in U-Boot and they are not consistently
271 * @boot_device_name: Named boot device, or NULL if none.
273 * Note: Additional fields can be added here, bearing in mind that SPL is
274 * size-sensitive and common fields will be present on all boards. This
275 * struct can also be used to return additional information about the load
276 * process if that becomes useful.
278 struct spl_boot_device {
280 const char *boot_device_name;
284 * Holds information about a way of loading an SPL image
286 * @name: User-friendly name for this method (e.g. "MMC")
287 * @boot_device: Boot device that this loader supports
288 * @load_image: Function to call to load image
290 struct spl_image_loader {
291 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
296 * load_image() - Load an SPL image
298 * @spl_image: place to put image information
299 * @bootdev: describes the boot device to load from
301 int (*load_image)(struct spl_image_info *spl_image,
302 struct spl_boot_device *bootdev);
305 /* Declare an SPL image loader */
306 #define SPL_LOAD_IMAGE(__name) \
307 ll_entry_declare(struct spl_image_loader, __name, spl_image_loader)
310 * _priority is the priority of this method, 0 meaning it will be the top
311 * choice for this device, 9 meaning it is the bottom choice.
312 * _boot_device is the BOOT_DEVICE_... value
313 * _method is the load_image function to call
315 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
316 #define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \
317 SPL_LOAD_IMAGE(_method ## _priority ## _boot_device) = { \
319 .boot_device = _boot_device, \
320 .load_image = _method, \
323 #define SPL_LOAD_IMAGE_METHOD(_name, _priority, _boot_device, _method) \
324 SPL_LOAD_IMAGE(_method ## _priority ## _boot_device) = { \
325 .boot_device = _boot_device, \
326 .load_image = _method, \
330 /* SPL FAT image functions */
331 int spl_load_image_fat(struct spl_image_info *spl_image,
332 struct blk_desc *block_dev, int partition,
333 const char *filename);
334 int spl_load_image_fat_os(struct spl_image_info *spl_image,
335 struct blk_desc *block_dev, int partition);
337 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image);
339 /* SPL EXT image functions */
340 int spl_load_image_ext(struct spl_image_info *spl_image,
341 struct blk_desc *block_dev, int partition,
342 const char *filename);
343 int spl_load_image_ext_os(struct spl_image_info *spl_image,
344 struct blk_desc *block_dev, int partition);
347 * spl_early_init() - Set up device tree and driver model in SPL if enabled
349 * Call this function in board_init_f() if you want to use device tree and
350 * driver model early, before board_init_r() is called.
352 * If this is not called, then driver model will be inactive in SPL's
353 * board_init_f(), and no device tree will be available.
355 int spl_early_init(void);
358 * spl_init() - Set up device tree and driver model in SPL if enabled
360 * You can optionally call spl_early_init(), then optionally call spl_init().
361 * This function will be called from board_init_r() if not called earlier.
363 * Both spl_early_init() and spl_init() perform a similar function except that
364 * the latter will not set up the malloc() area if
365 * CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN is enabled, since it is assumed to
366 * already be done by a calll to spl_relocate_stack_gd() before board_init_r()
369 * This function will be called from board_init_r() if not called earlier.
371 * If this is not called, then driver model will be inactive in SPL's
372 * board_init_f(), and no device tree will be available.
376 #ifdef CONFIG_SPL_BOARD_INIT
377 void spl_board_init(void);
381 * spl_was_boot_source() - check if U-Boot booted from SPL
383 * This will normally be true, but if U-Boot jumps to second U-Boot, it will
384 * be false. This should be implemented by board-specific code.
386 * @return true if U-Boot booted from SPL, else false
388 bool spl_was_boot_source(void);
391 * spl_dfu_cmd- run dfu command with chosen mmc device interface
392 * @param usb_index - usb controller number
393 * @param mmc_dev - mmc device nubmer
395 * @return 0 on success, otherwise error code
397 int spl_dfu_cmd(int usbctrl, char *dfu_alt_info, char *interface, char *devstr);
399 int spl_mmc_load_image(struct spl_image_info *spl_image,
400 struct spl_boot_device *bootdev);
403 * spl_mmc_load() - Load an image file from MMC/SD media
405 * @param spl_image Image data filled in by loading process
406 * @param bootdev Describes which device to load from
407 * @param filename Name of file to load (in FS mode)
408 * @param raw_part Partition to load from (in RAW mode)
409 * @param raw_sect Sector to load from (in RAW mode)
411 * @return 0 on success, otherwise error code
413 int spl_mmc_load(struct spl_image_info *spl_image,
414 struct spl_boot_device *bootdev,
415 const char *filename,
417 unsigned long raw_sect);
420 * spl_invoke_atf - boot using an ARM trusted firmware image
422 void spl_invoke_atf(struct spl_image_info *spl_image);
425 * spl_optee_entry - entry function for optee
427 * args defind in op-tee project
428 * https://github.com/OP-TEE/optee_os/
429 * core/arch/arm/kernel/generic_entry_a32.S
431 * @arg1: (ARMv7 standard bootarg #1)
432 * @arg2: device tree address, (ARMv7 standard bootarg #2)
433 * @arg3: non-secure entry address (ARMv7 bootarg #0)
435 void spl_optee_entry(void *arg0, void *arg1, void *arg2, void *arg3);
438 * spl_invoke_opensbi - boot using a RISC-V OpenSBI image
440 void spl_invoke_opensbi(struct spl_image_info *spl_image);
443 * board_return_to_bootrom - allow for boards to continue with the boot ROM
445 * If a board (e.g. the Rockchip RK3368 boards) provide some
446 * supporting functionality for SPL in their boot ROM and the SPL
447 * stage wants to return to the ROM code to continue booting, boards
448 * can implement 'board_return_to_bootrom'.
450 void board_return_to_bootrom(void);
453 * board_spl_fit_post_load - allow process images after loading finished
456 void board_spl_fit_post_load(ulong load_addr, size_t length);
459 * board_spl_fit_size_align - specific size align before processing payload
462 ulong board_spl_fit_size_align(ulong size);
465 * spl_perform_fixups() - arch/board-specific callback before processing
468 void spl_perform_fixups(struct spl_image_info *spl_image);
471 * spl_get_load_buffer() - get buffer for loading partial image data
473 * Returns memory area which can be populated by partial image data,
474 * ie. uImage or fitImage header.
476 struct image_header *spl_get_load_buffer(ssize_t offset, size_t size);