Hi Sascha,
which implementation variant would you prefer?
1) target specific flags
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 9aa8be535f30..6f341a6e3e86 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -164,6 +164,7 @@ dtc_cpp_flags = -Wp,-MD,$(depfile).pre -nostdinc \
-I$(srctree)/dts/include \
-I$(srctree)/include \
-I$(srctree)/dts/src/ \
+ $(DTC_CPP_FLAGS_$(basetarget).dtb) \
-undef -D__DTS__
ifdef CONFIG_BOOTM_FITIMAGE_PUBKEY
with something like this in arch/arm/dts/Makefile:
DTC_CPP_FLAGS_my-board-name.dtb := -I${PTXDIST_PLATFORMCONFIGDIR}/dts
lwl-dtb-$(CONFIG_MACH_MY_BOARD_NAME) += my-board-name.dtb.o
So we can clearly state that the device-tree is out of barebox tree.
2) add EXTRA_DTC_CPP_FLAGS to Makefile.lib, to pass it to make
3) add $(patsubst "%",%,$(CONFIG_DTC_CPP_FLAGS)) to Makefile.lib, and a Kconfig option
diff --git a/common/Kconfig b/common/Kconfig
index 02ef3631e04b..074f25aa6b7f 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -1347,3 +1347,6 @@ config DDR_SPD
config HAVE_ARCH_KASAN
bool
+
+config DTC_CPP_FLAGS
+ string "extra dtc-cpp flags"
Regards Denis
Am Freitag, den 26.06.2020, 06:49 +0200 schrieb Sascha Hauer:
> Hi Denis,
>
> On Mon, Jun 22, 2020 at 07:42:11AM +0000, Denis Osterland-Heim wrote:
> > Hi,
> >
> > is it possible to pass extra device-tree include directory?
> > For instance "${PTXDIST_PLATFORMCONFIGDIR}/dts" to have a out-of-tree dts only in one place?
>
> I am not aware of any possibility doing this currently.
>
> Regards,
> Sascha
>
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