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Commit 92e16f0f authored by Vladimir Zapolskiy's avatar Vladimir Zapolskiy Committed by Michael Turquette
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dt-bindings: clock: add description of LPC32xx clock controller 



NXP LPC32xx SoC has a clocking and power control unit (CPC) as a part
of system control block (SCB). CPC is supplied by two external
oscillators and it manages core and most of peripheral
clocks, the change adds description of DT bindings for clock
controller found on LPC32xx SoC series.

Signed-off-by: default avatarVladimir Zapolskiy <vz@mleia.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarMichael Turquette <mturquette@baylibre.com>
parent 8005c49d

Documentation/devicetree/bindings/clock/nxp,lpc3220-clk.txt

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+30 −0
Original line number Diff line number Diff line 
NXP LPC32xx Clock Controller



Required properties:

- compatible: should be "nxp,lpc3220-clk"

- reg:  should contain clock controller registers location and length

- #clock-cells: must be 1, the cell holds id of a clock provided by the

  clock controller

- clocks: phandles of external oscillators, the list must contain one

  32768 Hz oscillator and may have one optional high frequency oscillator

- clock-names: list of external oscillator clock names, must contain

  "xtal_32k" and may have optional "xtal"



Examples:



	/* System Control Block */

	scb {

		compatible = "simple-bus";

		ranges = <0x0 0x040004000 0x00001000>;

		#address-cells = <1>;

		#size-cells = <1>;



		clk: clock-controller@0 {

			compatible = "nxp,lpc3220-clk";

			reg = <0x00 0x114>;

			#clock-cells = <1>;



			clocks = <&xtal_32k>, <&xtal>;

			clock-names = "xtal_32k", "xtal";

		};

	};