dts: add property removal option CONFIG_OF_REMOVE_PROPS
This can be used for device tree size reduction similar as
CONFIG_OF_SPL_REMOVE_PROPS option. Some boards must pass the
built-in DTB unchanged to the kernel, thus we may not cut it
down unconditionally. Therefore enable the property removal
list option only if CONFIG_OF_DTB_PROPS_REMOVE is selected.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
diff --git a/dts/Kconfig b/dts/Kconfig
index d3313dd..046a54a 100644
--- a/dts/Kconfig
+++ b/dts/Kconfig
@@ -314,6 +314,26 @@
can be discarded. This option defines the list of properties to
discard.
+config OF_DTB_PROPS_REMOVE
+ bool "Enable removal of device tree properties"
+ depends on OF_CONTROL
+ help
+ Some boards have restricted amount of storage for U-Boot image.
+ If the generated binary doesn't fit into available image storage,
+ the built-in device tree could probably be cut down by removing
+ some not required device tree properties to reduce the image size.
+ Enable this option and define the properties to be removed in the
+ CONFIG_OF_REMOVE_PROPS list. Do not enable this option if you must
+ pass the built-in DTB directly to the kernel!
+
+config OF_REMOVE_PROPS
+ string "List of device tree properties to drop"
+ depends on OF_DTB_PROPS_REMOVE
+ default "interrupt-parent interrupts" if PINCTRL
+ help
+ Some properties are not used by U-Boot and can be discarded.
+ This option defines the list of properties to discard.
+
config SPL_OF_PLATDATA
bool "Generate platform data for use in SPL"
depends on SPL_OF_CONTROL