# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
# Copyright (C) 2019 Texas Instruments Incorporated
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/ti,dp83869.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI DP83869 ethernet PHY
allOf:
- $ref: ethernet-phy.yaml#
maintainers:
- Andrew Davis <[email protected]>
description: |
The DP83869HM device is a robust, fully-featured Gigabit (PHY) transceiver
with integrated PMD sublayers that supports 10BASE-Te, 100BASE-TX and
1000BASE-T Ethernet protocols. The DP83869 also supports 1000BASE-X and
100BASE-FX Fiber protocols.
This device interfaces to the MAC layer through Reduced GMII (RGMII) and
SGMII The DP83869HM supports Media Conversion in Managed mode. In this mode,
the DP83869HM can run 1000BASE-X-to-1000BASE-T and 100BASE-FX-to-100BASE-TX
conversions. The DP83869HM can also support Bridge Conversion from RGMII to
SGMII and SGMII to RGMII.
Specifications about the Ethernet PHY can be found at:
http://www.ti.com/lit/ds/symlink/dp83869hm.pdf
properties:
reg:
maxItems: 1
ti,min-output-impedance:
type: boolean
description: |
MAC Interface Impedance control to set the programmable output impedance
to a minimum value (35 ohms).
ti,max-output-impedance:
type: boolean
description: |
MAC Interface Impedance control to set the programmable output impedance
to a maximum value (70 ohms).
tx-fifo-depth:
$ref: /schemas/types.yaml#/definitions/uint32
description: |
Transmitt FIFO depth see dt-bindings/net/ti-dp83869.h for values
rx-fifo-depth:
$ref: /schemas/types.yaml#/definitions/uint32
description: |
Receive FIFO depth see dt-bindings/net/ti-dp83869.h for values
ti,clk-output-sel:
$ref: /schemas/types.yaml#/definitions/uint32
description: |
Muxing option for CLK_OUT pin see dt-bindings/net/ti-dp83869.h for values.
ti,op-mode:
$ref: /schemas/types.yaml#/definitions/uint32
description: |
Operational mode for the PHY. If this is not set then the operational
mode is set by the straps. see dt-bindings/net/ti-dp83869.h for values
rx-internal-delay-ps:
description: Delay is in pico seconds
enum: [ 250, 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000,
3250, 3500, 3750, 4000 ]
default: 2000
tx-internal-delay-ps:
description: Delay is in pico seconds
enum: [ 250, 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000,
3250, 3500, 3750, 4000 ]
default: 2000
required:
- reg
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/net/ti-dp83869.h>
mdio0 {
#address-cells = <1>;
#size-cells = <0>;
ethphy0: ethernet-phy@0 {
reg = <0>;
tx-fifo-depth = <DP83869_PHYCR_FIFO_DEPTH_4_B_NIB>;
rx-fifo-depth = <DP83869_PHYCR_FIFO_DEPTH_4_B_NIB>;
ti,op-mode = <DP83869_RGMII_COPPER_ETHERNET>;
ti,max-output-impedance;
ti,clk-output-sel = <DP83869_CLK_O_SEL_CHN_A_RCLK>;
rx-internal-delay-ps = <2000>;
tx-internal-delay-ps = <2000>;
};
};
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