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image: Add FIT image loadable section custom processing

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To help automate the loading of custom image types we add the ability
to define custom handlers for the loadable section types. When we find
a compatible type while loading a "loadable" image from a FIT image we
run its associated handlers to perform any additional steps needed for
loading this image.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Andrew F. Davis 2016-11-29 16:33:20 -06:00 • committed by Tom Rini
parent 5ca28f67ac
commit d7be50921e
3 changed files with 66 additions and 1 deletions
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4
doc/uImage.FIT/source_file_format.txt
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@ -256,7 +256,9 @@ o config@1
(component image node of a "fpga type").
- loadables : Unit name containing a list of additional binaries to be
loaded at their given locations. "loadables" is a comma-separated list
of strings. U-Boot will load each binary at its given start-address.
of strings. U-Boot will load each binary at its given start-address and
may optionaly invoke additional post-processing steps on this binary based
on its component image node type.
The FDT blob is required to properly boot FDT based kernel, so the minimal
configuration for 2.6 FDT kernel is (kernel, fdt) pair.