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spl: Add a way to specify a list of device trees to include

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When building a FIT, more than one device tree can be included. The board
can select (at run-time) the one that it wants.

Add a Kconfig option to allow the list of devices trees (supported by the
board) to be specified.

When using SPL_LOAD_FIT, build u-boot.img in FIT format instead of the
legacy image format. Include all the listed device tree files in this FIT.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2016-02-22 22:55:57 -07:00
committed by Tom Rini
parent f1dcee59a2
commit cdf172461c
2 changed files with 19 additions and 1 deletions
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dts/Kconfig
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@@ -59,6 +59,16 @@ config DEFAULT_DEVICE_TREE
It can be overridden from the command line:
$ make DEVICE_TREE=<device-tree-name>
config OF_LIST
string "List of device tree files to include for DT control"
depends on SPL_LOAD_FIT
help
This option specifies a list of device tree files to use for DT
control. These will be packaged into a FIT. At run-time, SPL will
select the correct DT to use by examining the hardware (e.g.
reading a board ID value). This is a list of device tree files
(without the directory or .dtb suffix) separated by <space>.
config OF_SPL_REMOVE_PROPS
string "List of device tree properties to drop for SPL"
depends on SPL_OF_CONTROL