diff options
| author | David Hendricks <dhendrix@chromium.org> | 2012-11-16 14:48:22 -0800 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2012-11-30 00:42:31 +0100 |
| commit | 90ca3b6bd7d7849898fe2363a9e6d0e002c95943 (patch) | |
| tree | be21c4f63d3f01afa0ec98018d83131c4f150f52 /payloads/libpayload/include/cbfs_core.h | |
| parent | 11a20b614e708582ebd7607d39487938f35f2550 (diff) | |
Add multi-architecture support to cbfstool
This is an initial re-factoring of CBFS code to enable multiple
architectures. To achieve a clean solution, an additional field
describing the architecture has to be added to the master header.
Hence we also increase the version number in the master header.
Change-Id: Icda681673221f8c27efbc46f16c2c5682b16a265
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/1944
Tested-by: build bot (Jenkins)
Diffstat (limited to 'payloads/libpayload/include/cbfs_core.h')
| -rw-r--r-- | payloads/libpayload/include/cbfs_core.h | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/payloads/libpayload/include/cbfs_core.h b/payloads/libpayload/include/cbfs_core.h index 70368f8a7d..32f2670b5b 100644 --- a/payloads/libpayload/include/cbfs_core.h +++ b/payloads/libpayload/include/cbfs_core.h @@ -2,6 +2,7 @@ * This file is part of the coreboot project. * * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net> + * Copyright (C) 2012 Google, Inc. * * This file is dual-licensed. You can choose between: * - The GNU GPL, version 2, as published by the Free Software Foundation @@ -76,13 +77,17 @@ /** this is the master cbfs header - it need to be located somewhere in the bootblock. Where it - actually lives is up to coreboot. A pointer to - this header will live at 0xFFFFFFFc, so we can - easily find it. */ + actually lives is up to coreboot. On x86, a + pointer to this header will live at 0xFFFFFFFC, + so we can easily find it. */ #define CBFS_HEADER_MAGIC 0x4F524243 -#define CBFS_HEADPTR_ADDR 0xFFFFFFFc +#if CONFIG_ARCH_X86 +#define CBFS_HEADPTR_ADDR 0xFFFFFFFC +#endif #define VERSION1 0x31313131 +#define VERSION2 0x31313132 +#define VERSION VERSION2 struct cbfs_header { uint32_t magic; @@ -91,9 +96,17 @@ struct cbfs_header { uint32_t bootblocksize; uint32_t align; uint32_t offset; - uint32_t pad[2]; + uint32_t architecture; + uint32_t pad[1]; } __attribute__((packed)); +/* "Unknown" refers to CBFS headers version 1, + * before the architecture was defined (i.e., x86 only). + */ +#define CBFS_ARCHITECTURE_UNKNOWN 0xFFFFFFFF +#define CBFS_ARCHITECTURE_X86 0x00000001 +#define CBFS_ARCHITECTURE_ARMV7 0x00000010 + /** This is a component header - every entry in the CBFS will have this header. @@ -178,4 +191,3 @@ void *cbfs_find_file(const char *name, int type); int cbfs_decompress(int algo, void *src, void *dst, int len); struct cbfs_header *get_cbfs_header(void); #endif - |