ti-processor-sdk-linux/Documentation/devicetree/bindings/net/ti-ptp-bc.txt

Texas Instruments PTP Boundary Clcok Internal Sync Monitor
==========================================================

Required properties:
- compatible       : Should be
                        "ti,am57-bc" for AM57xx SoCs
Optional properties:
- pps-sel0-gpios	: GPIO specifier, used to select PPS BC mux output
- pps-sel1-gpios	: GPIO specifier, used to select PPS BC mux output

Example:
========

In am57xx-idk-common.dts
	ptp_bc: ptp_bc {
		compatible = "ti,am57-bc";
		status = "disabled";
	};

To enable for am572x-idk, in am572x-idk.dts:

&ptp_bc {
	status = "okay";
};

To enable for am571x-idk-pps, in am572x-idk-pps.dtso:

&ptp_bc {
	pps-sel0-gpios = <&gpio1 4 GPIO_ACTIVE_HIGH>;
	pps-sel1-gpios = <&gpio6 7 GPIO_ACTIVE_HIGH>;

	status = "okay";
};