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| author | Simon Glass <sjg@chromium.org> | 2016-02-22 22:55:53 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-03-14 19:18:29 -0400 |
| commit | 722ebc8f84d5bccd2e70fad1079a0dd40cceddec (patch) | |
| tree | 9e7891e15d4690b8ec23f0fcfe7cd606423a5ef6 /tools/imagetool.h | |
| parent | fb4cce0f98ea0784130ff544d7c85d0841bea2e6 (diff) | |
| download | talos-obmc-uboot-722ebc8f84d5bccd2e70fad1079a0dd40cceddec.tar.gz talos-obmc-uboot-722ebc8f84d5bccd2e70fad1079a0dd40cceddec.zip | |
mkimage: Support placing data outside the FIT
One limitation of FIT is that all the data is 'inline' within it, using a
'data' property in each image node. This means that to find out what is in
the FIT it is necessary to scan the entire file. Once loaded it can be
scanned and then the images can be copied to the correct place in memory.
In SPL it can take a significant amount of time to copy images around in
memory. Also loading data that does not end up being used is wasteful. It
would be useful if the FIT were small, acting as a directory, with the
actual data stored elsewhere.
This allows SPL to load the entire FIT, without the images, then load the
images it wants later.
Add a -E option to mkimage to request that it output an 'external' FIT.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'tools/imagetool.h')
| -rw-r--r-- | tools/imagetool.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/imagetool.h b/tools/imagetool.h index 3d30fbec5c..24f8f4b2f6 100644 --- a/tools/imagetool.h +++ b/tools/imagetool.h @@ -72,6 +72,7 @@ struct image_tool_params { int fit_image_type; /* Image type to put into the FIT */ struct content_info *content_head; /* List of files to include */ struct content_info *content_tail; + bool external_data; /* Store data outside the FIT */ }; /* |
