[PATCH 1/7] MIPS: Create common infrastructure for building built-in device-trees

Andrew Bresticker
2014-08-21T20:04:20Z

In preparation for moving the device-trees to a common location,
introduce the config option BUILTIN_DTB, which can be selected by
platforms that use a device-tree built into the kernel image, and
create a Makefile to build the device-trees in arch/mips/boot/dts/.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
---
arch/mips/Kconfig | 3 +++
arch/mips/Makefile | 6 ++++++
arch/mips/boot/dts/Makefile | 3 +++
3 files changed, 12 insertions(+)
create mode 100644 arch/mips/boot/dts/Makefile

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index df51e78..19b8aac 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2481,6 +2481,9 @@ config USE_OF
select OF_EARLY_FLATTREE
select IRQ_DOMAIN

+config BUILTIN_DTB
+ bool
+
endmenu

config LOCKDEP_SUPPORT
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 9336509..72cdd6a 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -324,6 +324,12 @@ endif

CLEAN_FILES += vmlinux.32 vmlinux.64

+# device-trees
+core-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/
+
+%.dtb %.dtb.S %.dtb.o: | scripts
+ $(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@
+
archprepare:
ifdef CONFIG_MIPS32_N32
@echo ' Checking missing-syscalls for N32'
diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile
new file mode 100644
index 0000000..6bb41df
--- /dev/null
+++ b/arch/mips/boot/dts/Makefile
@@ -0,0 +1,3 @@
+obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
+
+clean-files += *.dtb.S
--
2.1.0.rc2.206.gedb03e5