From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Warren Subject: [RFC PATCH 2/3] ARM: use cmd_dtc_cpp for compilation of *.dts-cpp to *.dtb Date: Tue, 25 Sep 2012 13:06:37 -0600 Message-ID: <1348599998-2729-3-git-send-email-swarren@wwwdotorg.org> References: <1348599998-2729-1-git-send-email-swarren@wwwdotorg.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1348599998-2729-1-git-send-email-swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Sender: "devicetree-discuss" To: David Gibson , Jon Loeliger , Arnd Bergmann , Olof Johansson , Russell King , Grant Likely , Rob Herring Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, Stephen Warren , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org From: Stephen Warren This allows DT source files to use the C pre-processor. A new file extension is introduced for this purpose, since use of the pre-processor must be optional; any property or node name that starts with "#" must be escaped to prevent the pre-processor attempting to interpret it as a directive. For this reason, skeleton.dtsi-cpp is introduced for *.dts-cpp to include. Signed-off-by: Stephen Warren --- arch/arm/boot/Makefile | 3 +++ arch/arm/boot/dts/skeleton.dtsi-cpp | 13 +++++++++++++ 2 files changed, 16 insertions(+), 0 deletions(-) create mode 100644 arch/arm/boot/dts/skeleton.dtsi-cpp diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile index 3fdab01..c5d7fca 100644 --- a/arch/arm/boot/Makefile +++ b/arch/arm/boot/Makefile @@ -65,6 +65,9 @@ targets += $(dtb-y) $(obj)/%.dtb: $(src)/dts/%.dts FORCE $(call if_changed_dep,dtc) +$(obj)/%.dtb: $(src)/dts/%.dts-cpp FORCE + $(call if_changed_dep,dtc_cpp) + $(obj)/dtbs: $(addprefix $(obj)/, $(dtb-y)) clean-files := *.dtb diff --git a/arch/arm/boot/dts/skeleton.dtsi-cpp b/arch/arm/boot/dts/skeleton.dtsi-cpp new file mode 100644 index 0000000..8bf6729 --- /dev/null +++ b/arch/arm/boot/dts/skeleton.dtsi-cpp @@ -0,0 +1,13 @@ +/* + * Skeleton device tree; the bare minimum needed to boot; just include and + * add a compatible value. The bootloader will typically populate the memory + * node. + */ + +/ { + \#address-cells = <1>; + \#size-cells = <1>; + chosen { }; + aliases { }; + memory { device_type = "memory"; reg = <0 0>; }; +}; -- 1.7.0.4