1. Seems no cpu_idle driver is available in mach-mxs, if so, pls remove it from supported feature. 2. For copyright, s/2012/2013/. 3. Chapter 4.3.2 in README doesn't make more sense, it can be delete, but it up to you.
1. check bsp layer document from below. http://git.wrs.com/cgi-bin/cgit.cgi/layers/wr-bsps/fsl-imx28