Unified ARM Linux kernel source

Finally, ARM manufacturers have been stepping up their efforts at unifying a single source-tree for their architecture(s). Linus announced the merging of multi-platform ARM code into the mainline Linux source-tree in October.

This means ARM developers don't need to compile a different Linux kernel for each ARM SoC they develop for, but instead they can use one single source-tree for all SoCs.

http://www.zdnet.com/one-linux-for-all-arm-systems-7000005348/