From 1f6049e2501b5c35c61435dbc05ba96743202674 Mon Sep 17 00:00:00 2001
From: Tom Rini <trini@konsulko.com>
Date: Sat, 23 Sep 2017 23:14:33 -0400
Subject: [PATCH] tools/mkimage: Make the path to the dtc binary that mkimage
 calls configurable

In some cases, such as FreeBSD, the path to an alternative dtc needs to
be used.  Rather than override the one given in the Makefile on the
command line, make this part of the build configuration.

Signed-off-by: Tom Rini <trini@konsulko.com>
---
 dts/Kconfig    | 9 +++++++++
 tools/Makefile | 2 +-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/dts/Kconfig b/dts/Kconfig
index 44fc9fe36d..4ee0510943 100644
--- a/dts/Kconfig
+++ b/dts/Kconfig
@@ -170,3 +170,12 @@ config TPL_OF_PLATDATA
 	  information.
 
 endmenu
+
+config MKIMAGE_DTC_PATH
+	string "Path to dtc binary for use within mkimage"
+	default "dtc"
+	help
+	  The mkimage host tool will, in order to generate FIT images make
+	  calls to the dtc application in order to create the output.  In
+	  some cases the system dtc may not support all required features
+	  and the path to a different version should be given here.
diff --git a/tools/Makefile b/tools/Makefile
index a0db19d6b0..c16477459d 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -175,7 +175,7 @@ HOSTCFLAGS_rsa-sign.o += -Wno-deprecated-declarations
 endif
 endif
 
-HOSTCFLAGS_fit_image.o += -DMKIMAGE_DTC=\"$(DTC)\"
+HOSTCFLAGS_fit_image.o += -DMKIMAGE_DTC=\"$(CONFIG_MKIMAGE_DTC_PATH)\"
 
 HOSTLOADLIBES_dumpimage := $(HOSTLOADLIBES_mkimage)
 HOSTLOADLIBES_fit_info := $(HOSTLOADLIBES_mkimage)
-- 
2.39.5