Hi, Sorry, I've forgot the cover letter. Next version will have one. On Layerscape SoCs which feature the FlexSPI controller there is a single register which can control the divider value. The base frequency is the platform PLL. Right now the LS1028A and the LX2160A aren't able to switch the SCK frequency on the FlexSPI interface. Add a new clock driver which operate on said register. -michael