[U-Boot] [PATCH v2] dts/Makefile: Build the user specified dts

[Simon Glass]

On Thu, Feb 28, 2013 at 12:20 PM, Jagannadha Sutradharudu Teki
<jagannadha.sutradharudu-teki at xilinx.com> wrote:
> This patch provides a support to build the user specified dts.
>
> Signed-off-by: Jagannadha Sutradharudu Teki <jaganna at xilinx.com>

Acked-by: Simon Glass <sjg at chromium.org>

Thank you.

> ---
> Changes for v2:
>         - Update the logic for not giving an error if DEVICE_TREE defined
>         - Documented the build steps
>  doc/README.fdt-control |    8 ++++++++
>  dts/Makefile           |    2 ++
>  2 files changed, 10 insertions(+), 0 deletions(-)
>
> diff --git a/doc/README.fdt-control b/doc/README.fdt-control
> index 85bda03..8352835 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 785104e..01364d7 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. \
> --
> 1.7.4
>
>