[U-Boot] Question/proposal: why dts files are not normally accepted into u-boot repo?

Greetings.

In the old times it was customary to tweak the linux kernel for each and every board, creating "named" configurations, so naturally dts files ended up in the kernel source tree. Yet, kernel build system does nothing with those files. Moreover, during initial board development, u-boot board config header is written first and the dts file follows, based on the header information.

It seems it would be wise to accept .dts files together with the rest of the board specific sources into the u-boot tree. The space required is not large and the resulting arrangement will be considerably more convenient for old and new board development.