spl: Add a way to specify a list of device trees to include
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>
diff --git a/dts/Kconfig b/dts/Kconfig
index df068a1..d585009 100644
--- a/dts/Kconfig
+++ b/dts/Kconfig
@@ -59,6 +59,16 @@
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