xref: /linux/Documentation/devicetree/bindings/clock/microchip,pic32.txt (revision 6fdcba32711044c35c0e1b094cbd8f3f0b4472c9) 
1Microchip PIC32 Clock Controller Binding
2----------------------------------------
3Microchip clock controller is consists of few oscillators, PLL, multiplexer
4and few divider modules.
5
6This binding uses common clock bindings.
7[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
8
9Required properties:
10- compatible: shall be "microchip,pic32mzda-clk".
11- reg: shall contain base address and length of clock registers.
12- #clock-cells: shall be 1.
13
14Optional properties:
15- microchip,pic32mzda-sosc: shall be added only if platform has
16  secondary oscillator connected.
17
18Example:
19	rootclk: clock-controller@1f801200 {
20		compatible = "microchip,pic32mzda-clk";
21		reg = <0x1f801200 0x200>;
22		#clock-cells = <1>;
23		/* optional */
24		microchip,pic32mzda-sosc;
25	};
26
27
28The clock consumer shall specify the desired clock-output of the clock
29controller (as defined in [2]) by specifying output-id in its "clock"
30phandle cell.
31[2] include/dt-bindings/clock/microchip,pic32-clock.h
32
33For example for UART2:
34uart2: serial@2 {
35	compatible = "microchip,pic32mzda-uart";
36	reg = <>;
37	interrupts = <>;
38	clocks = <&rootclk PB2CLK>;
39};
40