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author | Patrick Georgi <patrick.georgi@coresystems.de> | 2009-11-09 17:18:02 +0000 |
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committer | Patrick Georgi <patrick.georgi@coresystems.de> | 2009-11-09 17:18:02 +0000 |
commit | 0da38dde4b173e43e29435751549809b4b13053d (patch) | |
tree | 9aecd2f506a0d4a39691bd278ad428a70a9e36b8 /util/cbfstool/common.h | |
parent | 031029d4d4f80c1754ba57d21cda69e4f381850a (diff) | |
download | coreboot-0da38dde4b173e43e29435751549809b4b13053d.tar.xz |
Add a "locate" function cbfstool, which helps you find
out a suitable address to put a XIP stage to.
Specifically, you pass it the file (to get its filesize), its filename
(as the header has a variable length that depends on it), and the
granularity requirement it has to fit in (for XIP).
The granularity is MTRR-style: when you request 0x10000, cbfstool looks
for a suitable place in a 64kb-aligned 64kb block.
cbfstool simply prints out a hex value which is the start address of a
suitably located free memory block. That value can then be used with
cbfs add-stage to store the file in the ROM image.
It's a two-step operation (instead of being merged into cbfs add-stage)
because the image must be linked twice: First, with some bogus, but safe
base address (eg. 0) to figure out the target address (based on file
size). Then a second time at the target address.
The work flow is:
- link file
- cbfstool locate
- link file again
- cbfstool add-stage.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4929 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'util/cbfstool/common.h')
-rw-r--r-- | util/cbfstool/common.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/util/cbfstool/common.h b/util/cbfstool/common.h index a41eb8a439..ede06e5340 100644 --- a/util/cbfstool/common.h +++ b/util/cbfstool/common.h @@ -34,6 +34,7 @@ static uint32_t virt_to_phys(void *addr) #define ALIGN(val, by) (((val) + (by)-1)&~((by)-1)) +uint32_t getfilesize(const char *filename); void *loadfile(const char *filename, uint32_t * romsize_p, void *content, int place); void *loadrom(const char *filename); @@ -62,4 +63,7 @@ int create_cbfs_image(const char *romfile, uint32_t romsize, int add_file_to_cbfs(void *content, uint32_t contentsize, uint32_t location); void print_cbfs_directory(const char *filename); +uint32_t cbfs_find_location(const char *romfile, uint32_t filesize, + const char *filename, uint32_t align); + #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) |