Commit 7f93c9d9 authored by Shaohui Xie's avatar Shaohui Xie Committed by Scott Wood
Browse files

power/fsl: add MDIO dt binding for FMan 



This binding is for FMan MDIO, it covers FMan v2 & FMan v3.

Signed-off-by: default avatarShaohui Xie <Shaohui.Xie@freescale.com>
[scottwood@freescale.com: mark interrupts required only for external]
Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
parent cadbfd01

Documentation/devicetree/bindings/powerpc/fsl/fman.txt

+70 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ CONTENTS 
  - FMan MURAM Node

  - FMan dTSEC/XGEC/mEMAC Node

  - FMan IEEE 1588 Node

  - FMan MDIO Node

  - Example



=============================================================================
@@ -356,6 +357,69 @@ ptp-timer@fe000 { 
	reg = <0xfe000 0x1000>;

};



=============================================================================

FMan MDIO Node



DESCRIPTION



The MDIO is a bus to which the PHY devices are connected.



PROPERTIES



- compatible

		Usage: required

		Value type: <stringlist>

		Definition: A standard property.

		Must include "fsl,fman-mdio" for 1 Gb/s MDIO from FMan v2.

		Must include "fsl,fman-xmdio" for 10 Gb/s MDIO from FMan v2.

		Must include "fsl,fman-memac-mdio" for 1/10 Gb/s MDIO from

		FMan v3.



- reg

		Usage: required

		Value type: <prop-encoded-array>

		Definition: A standard property.



- bus-frequency

		Usage: optional

		Value type: <u32>

		Definition: Specifies the external MDIO bus clock speed to

		be used, if different from the standard 2.5 MHz.

		This may be due to the standard speed being unsupported (e.g.

		due to a hardware problem), or to advertise that all relevant

		components in the system support a faster speed.



- interrupts

		Usage: required for external MDIO

		Value type: <prop-encoded-array>

		Definition: Event interrupt of external MDIO controller.



- fsl,fman-internal-mdio

		Usage: required for internal MDIO

		Value type: boolean

		Definition: Fman has internal MDIO for internal PCS(Physical

		Coding Sublayer) PHYs and external MDIO for external PHYs.

		The settings and programming routines for internal/external

		MDIO are different. Must be included for internal MDIO.



EXAMPLE



Example for FMan v2 external MDIO:



mdio@f1000 {

	compatible = "fsl,fman-xmdio";

	reg = <0xf1000 0x1000>;

	interrupts = <101 2 0 0>;

};



Example for FMan v3 internal MDIO:



mdio@f1000 {

	compatible = "fsl,fman-memac-mdio";

	reg = <0xf1000 0x1000>;

	fsl,fman-internal-mdio;

};



=============================================================================

Example
@@ -531,4 +595,10 @@ fman@400000 { 
		compatible = "fsl,fman-ptp-timer";

		reg = <0xfe000 0x1000>;

	};



	mdio@f1000 {

		compatible = "fsl,fman-xmdio";

		reg = <0xf1000 0x1000>;

		interrupts = <101 2 0 0>;

	};

};

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