87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/* Taken from depthcharge: src/boot/fit.h */
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef __LIB_FIT_H__
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#define __LIB_FIT_H__
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#include <stddef.h>
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#include <stdint.h>
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#include <device_tree.h>
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#include <list.h>
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#include <program_loading.h>
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struct fit_image_node {
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const char *name;
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void *data;
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uint32_t size;
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int compression;
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struct list_node list_node;
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};
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struct fit_config_node {
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const char *name;
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struct fit_image_node *kernel;
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struct fit_image_node *fdt;
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struct list_node overlays;
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struct fit_image_node *ramdisk;
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struct fdt_property compat;
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int compat_rank;
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int compat_pos;
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const char *compat_string;
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struct list_node list_node;
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};
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struct fit_overlay_chain {
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struct fit_image_node *overlay;
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struct list_node list_node;
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};
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/*
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* Updates the cmdline in the devicetree.
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*/
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void fit_update_chosen(struct device_tree *tree, const char *cmd_line);
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/*
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* Add a compat string to the list of supported board ids.
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* Has to be called before fit_load().
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* The most common use-case would be to implement it on board level.
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* Strings that were added first have a higher priority on finding a match.
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*/
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void fit_add_compat_string(const char *str);
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/*
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* Updates the memory section in the devicetree.
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*/
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void fit_update_memory(struct device_tree *tree);
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/*
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* Do architecture specific payload placements and fixups.
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* Set entrypoint and first argument (if any).
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* @param payload The payload, to set the entry point
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* @param config The extracted FIT config
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* @param kernel out-argument where to place the kernel
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* @param fdt out-argument where to place the devicetree
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* @param initrd out-argument where to place the initrd (optional)
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* @return True if all config nodes could be placed, the corresponding
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* regions have been updated and the entry point has been set.
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* False on error.
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*/
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bool fit_payload_arch(struct prog *payload, struct fit_config_node *config,
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struct region *kernel,
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struct region *fdt,
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struct region *initrd);
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/*
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* Unpack a FIT image into memory, choosing the right configuration through the
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* compatible string set by fit_add_compat() and return the selected config
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* node.
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*/
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struct fit_config_node *fit_load(void *fit);
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void fit_add_ramdisk(struct device_tree *tree, void *ramdisk_addr,
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size_t ramdisk_size);
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#endif /* __LIB_FIT_H__ */
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