a892cde653
* Add support for parsing and booting FIT payloads. * Build fit loader code from depthcharge. * Fix coding style. * Add Kconfig option to add compiletime support for FIT. * Add support for initrd. * Add default compat strings * Apply optional devicetree fixups using dt_apply_fixups Starting at this point the CBFS payload/ can be either SELF or FIT. Tested on Cavium SoC: Parses and loads a Linux kernel 4.16.3. Tested on Cavium SoC: Parses and loads a Linux kernel 4.15.0. Tested on Cavium SoC: Parses and loads a Linux kernel 4.1.52. Change-Id: I0f27b92a5e074966f893399eb401eb97d784850d Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/25019 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/*
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* Copyright 2013 Google Inc.
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* Copyright 2018-present Facebook, Inc.
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*
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* Taken from depthcharge: src/boot/fit.h
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but without any warranty; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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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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{
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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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{
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const char *name;
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const char *kernel;
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struct fit_image_node *kernel_node;
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const char *fdt;
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struct fit_image_node *fdt_node;
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const char *ramdisk;
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struct fit_image_node *ramdisk_node;
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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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/*
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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, 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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