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Makefile: Allow upstream DT subtree to provide DT includes

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Allow platforms to reuse DT headers and dtsi includes directly form
upstream DT subtree which will be frequently synced with Linux kernel.
This will further allow us to drop corresponding DT includes copy from
U-Boot tree.

Also, since the DT includes from upstream DT subtree are done after DT
includes from U-Boot tree, so it shouldn't cause any conflicts.

Tested-by: Bryan Brattlof <bb@ti.com>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
This commit is contained in:
Sumit Garg 2024-02-22 15:06:00 +05:30 committed by Tom Rini
parent df6fb77c98
commit 3a4e5944c9
2 changed files with 7 additions and 1 deletions
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3
Makefile
View File

@ -835,7 +835,8 @@ UBOOTINCLUDE := \
-I$(srctree)/arch/arm/thumb1/include), \
-I$(srctree)/arch/arm/thumb1/include)) \
-I$(srctree)/arch/$(ARCH)/include \
-include $(srctree)/include/linux/kconfig.h
-include $(srctree)/include/linux/kconfig.h \
-I$(srctree)/dts/upstream/include
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)

5
scripts/Makefile.lib
View File

@ -189,12 +189,17 @@ dtsi_include_list = $(strip $(u_boot_dtsi_options_debug) \
dtsi_include_list += $(CONFIG_DEVICE_TREE_INCLUDES)
# Modified for U-Boot
upstream_dtsi_include = $(addprefix -I, $(srctree)/dts/upstream/src/ \
$(sort $(dir $(wildcard $(srctree)/dts/upstream/src/$(ARCH)/*/*))) \
$(if (CONFIG_ARM64), \
$(sort $(dir $(wildcard $(srctree)/dts/upstream/src/arm64/*/*)))))
dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
$(UBOOTINCLUDE) \
-I$(dir $<) \
-I$(u_boot_dtsi_loc) \
-I$(srctree)/arch/$(ARCH)/dts/include \
-I$(srctree)/include \
$(upstream_dtsi_include) \
-D__ASSEMBLY__ \
-undef -D__DTS__