[U-Boot] [PATCH v4 04/15] Makefile: Support include files for .dts files

Simon Glass
2014-06-06T19:13:21Z

Linux supports this, and if we are to have compatible device tree files,
U-Boot should also.

Avoid giving the device tree files access to U-Boot's include/ directory.
Only include/dt-bindings is accessible.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
---

Changes in v4: None
Changes in v3:
- Create a symlink for each arch to dt-bindings

Changes in v2:
- Add new patch to support include files for .dts files

arch/arm/dts/include/dt-bindings | 1 +
arch/microblaze/dts/include/dt-bindings | 1 +
arch/sandbox/dts/include/dt-bindings | 1 +
arch/x86/dts/include/dt-bindings | 1 +
scripts/Makefile.lib | 1 +
5 files changed, 5 insertions(+)
create mode 120000 arch/arm/dts/include/dt-bindings
create mode 120000 arch/microblaze/dts/include/dt-bindings
create mode 120000 arch/sandbox/dts/include/dt-bindings
create mode 120000 arch/x86/dts/include/dt-bindings

diff --git a/arch/arm/dts/include/dt-bindings b/arch/arm/dts/include/dt-bindings
new file mode 120000
index 0000000..0cecb3d
--- /dev/null
+++ b/arch/arm/dts/include/dt-bindings
@@ -0,0 +1 @@
+../../../../include/dt-bindings
\ No newline at end of file
diff --git a/arch/microblaze/dts/include/dt-bindings b/arch/microblaze/dts/include/dt-bindings
new file mode 120000
index 0000000..0cecb3d
--- /dev/null
+++ b/arch/microblaze/dts/include/dt-bindings
@@ -0,0 +1 @@
+../../../../include/dt-bindings
\ No newline at end of file
diff --git a/arch/sandbox/dts/include/dt-bindings b/arch/sandbox/dts/include/dt-bindings
new file mode 120000
index 0000000..0cecb3d
--- /dev/null
+++ b/arch/sandbox/dts/include/dt-bindings
@@ -0,0 +1 @@
+../../../../include/dt-bindings
\ No newline at end of file
diff --git a/arch/x86/dts/include/dt-bindings b/arch/x86/dts/include/dt-bindings
new file mode 120000
index 0000000..0cecb3d
--- /dev/null
+++ b/arch/x86/dts/include/dt-bindings
@@ -0,0 +1 @@
+../../../../include/dt-bindings
\ No newline at end of file
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index a04439d..722afed 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -153,6 +153,7 @@ ld_flags = $(LDFLAGS) $(ldflags-y)
# Modified for U-Boot
dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
-I$(srctree)/arch/$(ARCH)/dts \
+ -I$(srctree)/arch/$(ARCH)/dts/include \
-undef -D__DTS__

# Finds the multi-part object the current object will be linked into
--
2.0.0.526.g5318336