1 * Clock bindings for Axis ARTPEC-6 chip
3 The bindings are based on the clock provider binding in
4 Documentation/devicetree/bindings/clock/clock-bindings.txt
9 There are two external inputs to the main clock controller which should be
10 provided using the common clock bindings.
11 - "sys_refclk": External 50 Mhz oscillator (required)
12 - "i2s_refclk": Alternate audio reference clock (optional).
18 - #clock-cells: Should be <1>
19 See dt-bindings/clock/axis,artpec6-clkctrl.h for the list of valid identifiers.
20 - compatible: Should be "axis,artpec6-clkctrl"
21 - reg: Must contain the base address and length of the system controller
22 - clocks: Must contain a phandle entry for each clock in clock-names
23 - clock-names: Must include the external oscillator ("sys_refclk"). Optional
24 ones are the audio reference clock ("i2s_refclk") and the audio fractional
25 dividers ("frac_clk0" and "frac_clk1").
31 compatible = "fixed-clock";
32 clock-frequency = <50000000>;
35 clkctrl: clkctrl@f8000000 {
37 compatible = "axis,artpec6-clkctrl";
38 reg = <0xf8000000 0x48>;
40 clock-names = "sys_refclk";