On Thu, Mar 20, 2014 at 10:37:53AM +0800, Bo Shen wrote: > For this, in my mind, I think we need add following parameters in DT. > 1. sysclk_src_from_fll --> we need do nothing. No, how would this work? If nothing else the FLL needs configuration. > 2. sysclk_src_from_mclk > 2.1 use_external_xtal --> we need clock_frequency > 2.2 !use_external_xtal --> we need retrieve clock and clock_frequency. No, this is all handled in the clock binding. If there's a fixed rate clock the device tree should have a fixed rate clock provided. > Does this acceptable? Or any other better suggestion for this? Just have the device tree describe the hardware and provide a way of specifying an optional MCLK.
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