of/lib: Allow scripts/dtc/libfdt to be used from kernel code

libfdt is part of the device tree support in scripts/dtc/libfdt.  For
some platforms that use the Device Tree, we want to be able to edit
the flattened device tree form.

We don't want to burden kernel builds that do not require it, so we
gate compilation of libfdt files with CONFIG_LIBFDT.  So if it is
needed, you need to do this in your Kconfig:

	select LIBFDT

And in the Makefile of the code using libfdt something like:

ccflags-y := -I$(src)/../../../scripts/dtc/libfdt

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: linux-kernel@vger.kernel.org
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
David Daney
2012-07-05 18:12:38 +02:00
committed by Ralf Baechle
parent a339aef904
commit ab25383983
10 changed files with 44 additions and 0 deletions

2
lib/fdt_wip.c Normal file
View File

@@ -0,0 +1,2 @@
#include <linux/libfdt_env.h>
#include "../scripts/dtc/libfdt/fdt_wip.c"