Documentation/devicetree/bindings/clock/specified-clock.txt

Binding for fixed-rate clock sources with readable configuration.

This binding uses the common clock binding[1].

[1] Documentation/devicetree/bindings/clock/clock-bindings.txt

Required properties:
- compatible         : Shall be "specified-clock".
- #clock-cells       : From common clock binding; shall be set to 0.
- reg                : Address of configuration register.
- shift              : Shift of config value field in configuration register.
- width              : Width of config value field in configuration register.
- clock-frequency    : Frequency mapping of clock. Consecutive pairs of cells
                       represent the config value to match and the clock
                       frequency in Hz for that config value.

Optional properties:
- clock-output-names : From common clock binding.

Example:
	clock {
		compatible = "specified-clock";
		#clock-cells = <0>;
		reg = <0x02004004 0x4>;	/* CR_PERIP_RESET_CFG */
		shift = <8>;		/* FXTAL */
		width = <4>;
		clock-frequency =
		/*	 FXTAL	Frequency */
			<0	16384000>,
			<1	19200000>,
			<2	24000000>,
			<3	24576000>,
			<4	26000000>,
			<5	36000000>,
			<6	36864000>,
			<7	38400000>,
			<8	40000000>;
		clock-output-names = "xtal1";
	};