[U-Boot] u-boot.dtb vs. dts/dt.dtb output filename, also O= vs BUILD_DIR=

[Stephen Warren]

On 02/24/2014 05:38 PM, Masahiro Yamada wrote:
>> Prior the to kbuild conversion...
...
>> Related, I also found that pre-Kbuild, I could "make BUILD_DIR=...", but
>> now I have to "make O=...". That's also an external change in behaviour.
>> Was that intentional?
> 
> "make O=..." are always supported before and after Kbuild.
> (I guess many peaple use it for less typing.)

OK, O= works fine; I'll switch our tool to that.