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

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
...@@ -7,6 +7,7 @@ CONTENTS ...@@ -7,6 +7,7 @@ CONTENTS
- FMan MURAM Node - FMan MURAM Node
- FMan dTSEC/XGEC/mEMAC Node - FMan dTSEC/XGEC/mEMAC Node
- FMan IEEE 1588 Node - FMan IEEE 1588 Node
- FMan MDIO Node
- Example - Example
============================================================================= =============================================================================
...@@ -356,6 +357,69 @@ ptp-timer@fe000 { ...@@ -356,6 +357,69 @@ ptp-timer@fe000 {
reg = <0xfe000 0x1000>; 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 Example
...@@ -531,4 +595,10 @@ fman@400000 { ...@@ -531,4 +595,10 @@ fman@400000 {
compatible = "fsl,fman-ptp-timer"; compatible = "fsl,fman-ptp-timer";
reg = <0xfe000 0x1000>; reg = <0xfe000 0x1000>;
}; };
mdio@f1000 {
compatible = "fsl,fman-xmdio";
reg = <0xf1000 0x1000>;
interrupts = <101 2 0 0>;
};
}; };
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