[deliverable/linux.git] / Documentation / devicetree / bindings / clock / sunxi-ccu.txt

Allwinner Clock Control Unit Binding
------------------------------------

Required properties :
- compatible: must contain one of the following compatibles:
		- "allwinner,sun6i-a31-ccu"
		- "allwinner,sun8i-a23-ccu"
		- "allwinner,sun8i-a33-ccu"
		- "allwinner,sun8i-h3-ccu"

- reg: Must contain the registers base address and length
- clocks: phandle to the oscillators feeding the CCU. Two are needed:
  - "hosc": the high frequency oscillator (usually at 24MHz)
  - "losc": the low frequency oscillator (usually at 32kHz)
- clock-names: Must contain the clock names described just above
- #clock-cells : must contain 1
- #reset-cells : must contain 1

Example:
ccu: clock@01c20000 {
	compatible = "allwinner,sun8i-h3-ccu";
	reg = <0x01c20000 0x400>;
	clocks = <&osc24M>, <&osc32k>;
	clock-names = "hosc", "losc";
	#clock-cells = <1>;
	#reset-cells = <1>;
};
Commit	Line	Data
c0692d68 MR	1	Allwinner Clock Control Unit Binding
	2	------------------------------------
	3
	4	Required properties :
c6e6c96d CYT	5	- compatible: must contain one of the following compatibles:
c6e6c96d CYT	6	- "allwinner,sun6i-a31-ccu"
5690879d	7	- "allwinner,sun8i-a23-ccu"
d05c748b	8	- "allwinner,sun8i-a33-ccu"
c0692d68 MR	9	- "allwinner,sun8i-h3-ccu"
	10
	11	- reg: Must contain the registers base address and length
	12	- clocks: phandle to the oscillators feeding the CCU. Two are needed:
	13	- "hosc": the high frequency oscillator (usually at 24MHz)
	14	- "losc": the low frequency oscillator (usually at 32kHz)
	15	- clock-names: Must contain the clock names described just above
	16	- #clock-cells : must contain 1
	17	- #reset-cells : must contain 1
	18
	19	Example:
	20	ccu: clock@01c20000 {
	21	compatible = "allwinner,sun8i-h3-ccu";
	22	reg = <0x01c20000 0x400>;
	23	clocks = <&osc24M>, <&osc32k>;
	24	clock-names = "hosc", "losc";
	25	#clock-cells = <1>;
	26	#reset-cells = <1>;
	27	};