1 * Clock bindings for Axis ARTPEC-6 chip
2
3 The bindings are based on the clock provider b
4 Documentation/devicetree/bindings/clock/clock-
5
6 External clocks:
7 ----------------
8
9 There are two external inputs to the main cloc
10 provided using the common clock bindings.
11 - "sys_refclk": External 50 Mhz oscillator (re
12 - "i2s_refclk": Alternate audio reference cloc
13
14 Main clock controller
15 ---------------------
16
17 Required properties:
18 - #clock-cells: Should be <1>
19 See dt-bindings/clock/axis,artpec6-clkctrl.h
20 - compatible: Should be "axis,artpec6-clkctrl"
21 - reg: Must contain the base address and lengt
22 - clocks: Must contain a phandle entry for ea
23 - clock-names: Must include the external oscil
24 ones are the audio reference clock ("i2s_ref
25 dividers ("frac_clk0" and "frac_clk1").
26
27 Examples:
28
29 ext_clk: ext_clk {
30 #clock-cells = <0>;
31 compatible = "fixed-clock";
32 clock-frequency = <50000000>;
33 };
34
35 clkctrl: clkctrl@f8000000 {
36 #clock-cells = <1>;
37 compatible = "axis,artpec6-clkctrl";
38 reg = <0xf8000000 0x48>;
39 clocks = <&ext_clk>;
40 clock-names = "sys_refclk";
41 };
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