| /* |
| * Copyright (C) 2009 coresystems GmbH |
| * written by Patrick Georgi <patrick.georgi@coresystems.de> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA |
| */ |
| |
| #ifndef __CBFS_H |
| #define __CBFS_H |
| |
| #include <stdint.h> |
| #include "elf.h" |
| |
| /* create a magic number in host-byte order. |
| * b3 is the high order byte. |
| * in the coreboot tools, we go with the 32-bit |
| * magic number convention. |
| * This was an inline func but that breaks anything |
| * that uses it in a case statement. |
| */ |
| |
| #define makemagic(b3, b2, b1, b0)\ |
| (((b3)<<24) | ((b2) << 16) | ((b1) << 8) | (b0)) |
| |
| #define CBFS_HEADER_MAGIC 0x4F524243 |
| #define CBFS_HEADPTR_ADDR_X86 0xFFFFFFFC |
| #define CBFS_HEADER_VERSION1 0x31313131 |
| #define CBFS_HEADER_VERSION2 0x31313132 |
| #define CBFS_HEADER_VERSION CBFS_HEADER_VERSION2 |
| |
| struct cbfs_header { |
| uint32_t magic; |
| uint32_t version; |
| uint32_t romsize; |
| uint32_t bootblocksize; |
| uint32_t align; |
| uint32_t offset; |
| uint32_t architecture; /* Version 2 */ |
| uint32_t pad[1]; |
| } __attribute__ ((packed)); |
| |
| #define CBFS_ARCHITECTURE_UNKNOWN 0xFFFFFFFF |
| #define CBFS_ARCHITECTURE_X86 0x00000001 |
| #define CBFS_ARCHITECTURE_ARMV7 0x00000010 |
| |
| #define CBFS_FILE_MAGIC "LARCHIVE" |
| |
| struct cbfs_file { |
| uint8_t magic[8]; |
| uint32_t len; |
| uint32_t type; |
| uint32_t checksum; |
| uint32_t offset; |
| } __attribute__ ((packed)); |
| |
| struct cbfs_stage { |
| uint32_t compression; |
| uint64_t entry; |
| uint64_t load; |
| uint32_t len; |
| uint32_t memlen; |
| } __attribute__ ((packed)); |
| |
| #define PAYLOAD_SEGMENT_CODE makemagic('C', 'O', 'D', 'E') |
| #define PAYLOAD_SEGMENT_DATA makemagic('D', 'A', 'T', 'A') |
| #define PAYLOAD_SEGMENT_BSS makemagic(' ', 'B', 'S', 'S') |
| #define PAYLOAD_SEGMENT_PARAMS makemagic('P', 'A', 'R', 'A') |
| #define PAYLOAD_SEGMENT_ENTRY makemagic('E', 'N', 'T', 'R') |
| |
| struct cbfs_payload_segment { |
| uint32_t type; |
| uint32_t compression; |
| uint32_t offset; |
| uint64_t load_addr; |
| uint32_t len; |
| uint32_t mem_len; |
| } __attribute__ ((packed)); |
| |
| struct cbfs_payload { |
| struct cbfs_payload_segment segments; |
| } __attribute__ ((packed)); |
| |
| /** These are standard component types for well known |
| components (i.e - those that coreboot needs to consume. |
| Users are welcome to use any other value for their |
| components */ |
| |
| #define CBFS_COMPONENT_STAGE 0x10 |
| #define CBFS_COMPONENT_PAYLOAD 0x20 |
| #define CBFS_COMPONENT_OPTIONROM 0x30 |
| #define CBFS_COMPONENT_BOOTSPLASH 0x40 |
| #define CBFS_COMPONENT_RAW 0x50 |
| #define CBFS_COMPONENT_VSA 0x51 |
| #define CBFS_COMPONENT_MBI 0x52 |
| #define CBFS_COMPONENT_MICROCODE 0x53 |
| #define CBFS_COMPONENT_CMOS_DEFAULT 0xaa |
| #define CBFS_COMPONENT_CMOS_LAYOUT 0x01aa |
| |
| /* The deleted type is chosen to be a value |
| * that can be written in a FLASH from all other |
| * values. |
| */ |
| #define CBFS_COMPONENT_DELETED 0 |
| |
| /* for all known FLASH, this value can be changed |
| * to all other values. This allows NULL files to be |
| * changed without a block erase |
| */ |
| #define CBFS_COMPONENT_NULL 0xFFFFFFFF |
| |
| #define CBFS_NAME(_c) (((char *) (_c)) + sizeof(struct cbfs_file)) |
| #define CBFS_SUBHEADER(_p) ( (void *) ((((uint8_t *) (_p)) + ntohl((_p)->offset))) ) |
| /* cbfs_image.c */ |
| uint32_t get_cbfs_entry_type(const char *name, uint32_t default_value); |
| const char *get_cbfs_entry_type_name(uint32_t type); |
| uint32_t get_cbfs_compression(const char *name, uint32_t unknown); |
| |
| /* common.c */ |
| void cbfs_file_get_header(struct buffer *buf, struct cbfs_file *file); |
| |
| /* elfheaders.c */ |
| int |
| elf_headers(const struct buffer *pinput, |
| uint32_t arch, |
| Elf64_Ehdr *ehdr, |
| Elf64_Phdr **pphdr, |
| Elf64_Shdr **pshdr); |
| |
| /* cbfs-mkpayload.c */ |
| void xdr_segs(struct buffer *output, |
| struct cbfs_payload_segment *segs, int nseg); |
| |
| #endif |