[U-Boot] [PATCH 1/3] fdt: Add board specific dts inclusion

[Michal Simek <monstr@monstr.eu>]

On 07/04/2012 10:25 PM, Stephan Linz wrote:
> Some architectures, for example Microblaze, doesn't need a
> splitted device tree because every Microblaze hw design is
> different. The individuell Microblaze device tree will be
> auto generated by FPGA design tools and could be used directly
> with dtc.
>
> The auto generated dts for Microblaze can not processed by CPP.
> Unfortunately that is the default procedure in U-Boot to merge
> a splitted device tree (substitution of ARCH_CPU_DTS).
>
> Microblaze will never use the ARCH_CPU_DTS substitution and we
> introduce the new board specific substitution variable BOARD_DTS
> that points into vendor/board/dts subdir with the file name
> of CONFIG_DEFAULT_DEVICE_TREE. The common dts file in vendor/dts
> subdir (defined by CONFIG_DEFAULT_DEVICE_TREE) contain a single
> include line that can processed by CPP:
>
>      /include/ BOARD_DTS
>
> Signed-off-by: Stephan Linz<linz@li-pro.net>
> ---
>   dts/Makefile |    3 ++-
>   1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/dts/Makefile b/dts/Makefile
> index 914e479..b1f47a1 100644
> --- a/dts/Makefile
> +++ b/dts/Makefile
> @@ -36,7 +36,8 @@ $(error Your architecture does not have device tree support enabled. \
>   Please define CONFIG_ARCH_DEVICE_TREE))
>
>   # We preprocess the device tree file provide a useful define
> -DTS_CPPFLAGS := -DARCH_CPU_DTS=\"$(SRCTREE)/arch/$(ARCH)/dts/$(CONFIG_ARCH_DEVICE_TREE).dtsi\"
> +DTS_CPPFLAGS := -DARCH_CPU_DTS=\"$(SRCTREE)/arch/$(ARCH)/dts/$(CONFIG_ARCH_DEVICE_TREE).dtsi\" \
> +		-DBOARD_DTS=\"$(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts/$(DEVICE_TREE).dts\"
>
>   all:	$(obj).depend $(LIB)
>

Ok. Have tested this.
Simon can you give your ACK for this patch?

Tested-by: Michal Simek <monstr@monstr.eu>

I think I can add this one to my microblaze custodian tree.

Thanks,
Michal



-- 
Michal Simek, Ing. (M.Eng)
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/
Microblaze U-BOOT custodian