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Diffstat (limited to 'roms/u-boot/include/binman.h')
-rw-r--r-- | roms/u-boot/include/binman.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/roms/u-boot/include/binman.h b/roms/u-boot/include/binman.h new file mode 100644 index 000000000..5958dfb44 --- /dev/null +++ b/roms/u-boot/include/binman.h @@ -0,0 +1,96 @@ +/* SPDX-License-Identifier: Intel */ +/* + * Access to binman information at runtime + * + * Copyright 2019 Google LLC + * Written by Simon Glass <sjg@chromium.org> + */ + +#ifndef _BINMAN_H_ +#define _BINMAN_H_ + +#include <dm/ofnode.h> + +/** + *struct binman_entry - information about a binman entry + * + * @image_pos: Position of entry in the image + * @size: Size of entry + */ +struct binman_entry { + u32 image_pos; + u32 size; +}; + +/** + * binman_entry_map() - Look up the address of an entry in memory + * + * @parent: Parent binman node + * @name: Name of entry + * @bufp: Returns a pointer to the entry + * @sizep: Returns the size of the entry + * @return 0 on success, -EPERM if the ROM offset is not set, -ENOENT if the + * entry cannot be found, other error code other error + */ +int binman_entry_map(ofnode parent, const char *name, void **bufp, int *sizep); + +/** + * binman_set_rom_offset() - Set the ROM memory-map offset + * + * @rom_offset: Offset from an image_pos to the memory-mapped address. This + * tells binman that ROM image_pos x can be addressed at rom_offset + x + */ +void binman_set_rom_offset(int rom_offset); + +/** + * binman_get_rom_offset() - Get the ROM memory-map offset + * + * @returns offset from an image_pos to the memory-mapped address + */ +int binman_get_rom_offset(void); + +/** + * binman_entry_find() - Find a binman symbol + * + * This searches the binman information in the device tree for a symbol of the + * given name + * + * @name: Path to entry to examine (e.g. "/read-only/u-boot") + * @entry: Returns information about the entry + * @return 0 if OK, -ENOENT if the path is not found, other -ve value if the + * binman information is invalid (missing image-pos or size) + */ +int binman_entry_find(const char *name, struct binman_entry *entry); + +/** + * binman_section_find_node() - Find a binman node + * + * @name: Name of node to look for + * @return Node that was found, ofnode_null() if not found + */ +ofnode binman_section_find_node(const char *name); + +/** + * binman_select_subnode() - Select a subnode to use to find entries + * + * Normally binman selects the top-level node for future entry requests, such as + * binman_entry_find(). This function allows a subnode to be chosen instead. + * + * @name: Name of subnode, typically a section. This must be in the top-level + * binman node + * @return 0 if OK, -EINVAL if there is no /binman node, -ECHILD if multiple + * images are being used but the first image is not available, -ENOENT if + * the requested subnode cannot be found + */ +int binman_select_subnode(const char *name); + +/** + * binman_init() - Set up the binman symbol information + * + * This locates the binary symbol information in the device tree ready for use + * + * @return 0 if OK, -ENOMEM if out of memory, -EINVAL if there is no binman node + */ +int binman_init(void); + +#endif |