Varcain/linux_ARMv7M — pull request #2 by R2F (2014-12-14 00:35:53+00:00)
Title: clk driver clean-ups

- device tree clean-ups
- added 'hse-frequency' property to cpu in device tree
- removed HSE configuration flag from Kconfig
- added HSI as input for PLL, but PLL cannot be reconfigured since it is set in U-boot as source for sysclk.