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authorJagannadha Sutradharudu Teki <jagannadha.sutradharudu-teki@xilinx.com>2013-02-28 10:20:18 +0000
committerTom Rini <trini@ti.com>2013-04-02 16:23:34 -0400
commit74de8c9a1672be6c41a6815f484b5958f8241af4 (patch)
tree2f40fd8fa91880964d323cd7113fcd3f535f2c2c
parent472d546054dadacca91530bad42ad06f6408124e (diff)
downloadblackbird-obmc-uboot-74de8c9a1672be6c41a6815f484b5958f8241af4.tar.gz
blackbird-obmc-uboot-74de8c9a1672be6c41a6815f484b5958f8241af4.zip
dts/Makefile: Build the user specified dts
This patch provides a support to build the user specified dts. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Acked-by: Simon Glass <sjg@chromium.org>
-rw-r--r--doc/README.fdt-control8
-rw-r--r--dts/Makefile2
2 files changed, 10 insertions, 0 deletions
diff --git a/doc/README.fdt-control b/doc/README.fdt-control
index 85bda03504..8352835ee9 100644
--- a/doc/README.fdt-control
+++ b/doc/README.fdt-control
@@ -156,6 +156,14 @@ To use this, put something like this in your board header file:
#define CONFIG_EXTRA_ENV_SETTINGS "fdtcontroladdr=10000\0"
+Build:
+
+After board configuration is done, fdt supported u-boot can be build in two ways:
+1) build the default dts which is defined from CONFIG_DEFAULT_DEVICE_TREE
+ $ make
+2) build the user specified dts file
+ $ make DEVICE_TREE=<dts-file-name>
+
Limitations
-----------
diff --git a/dts/Makefile b/dts/Makefile
index 6f36153634..03e163ef0a 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -27,9 +27,11 @@ include $(TOPDIR)/config.mk
LIB = $(obj)libdts.o
+ifeq ($(DEVICE_TREE),)
$(if $(CONFIG_DEFAULT_DEVICE_TREE),,\
$(error Please define CONFIG_DEFAULT_DEVICE_TREE in your board header file))
DEVICE_TREE = $(subst ",,$(CONFIG_DEFAULT_DEVICE_TREE))
+endif
$(if $(CONFIG_ARCH_DEVICE_TREE),,\
$(error Your architecture does not have device tree support enabled. \
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