Device Tree Compiler for Windows
The Device Tree Compiler (DTC) is the toolchain for building device tree source files (.dts) into the binary format (.dtb).
libfdt is a BSD-licenses library for manipulating device tree files. Since it is BSD licensed, it may be freely incorporated into other software such as firmware and operating system loaders.
http://devicetree.org/Device_Tree_Compiler
This is a Windows port of original Device Tree Compiler which can be built with MinGW toolchains downloaded from http://mingw.org.