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Add out-of-source U-Boot device tree support

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Similaly to Linux, this patch adds the ability to copy in and build
out-of-source device tree sources during a U-Boot build.

Signed-off-by: James Balean <james@balean.com.au>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
James Balean 2017-04-04 22:45:51 -05:00 committed by Thomas Petazzoni
parent 4b2440b7dc
commit 4f50f4928c
2 changed files with 17 additions and 0 deletions
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14
boot/uboot/Config.in
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@ -407,4 +407,18 @@ config BR2_TARGET_UBOOT_ENVIMAGE_REDUNDANT
endif # BR2_TARGET_UBOOT_ENVIMAGE
if BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG
config BR2_TARGET_UBOOT_CUSTOM_DTS_PATH
string "Device Tree Source file paths"
help
Space-separated list of paths to device tree source files
that will be copied to arch/ARCH/dts/ before starting the
build.
To use this device tree source file, the U-Boot configuration
file must refer to it.
endif
endif # BR2_TARGET_UBOOT

3
boot/uboot/uboot.mk
View File

@ -195,6 +195,9 @@ endef
endif # BR2_TARGET_UBOOT_BUILD_SYSTEM_LEGACY
define UBOOT_BUILD_CMDS
$(if $(BR2_TARGET_UBOOT_CUSTOM_DTS_PATH),
cp -f $(call qstrip,$(BR2_TARGET_UBOOT_CUSTOM_DTS_PATH)) $(@D)/arch/$(UBOOT_ARCH)/dts/
)
$(TARGET_CONFIGURE_OPTS) \
$(MAKE) -C $(@D) $(UBOOT_MAKE_OPTS) \
$(UBOOT_MAKE_TARGET)