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