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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/fsl,lynx-28g.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale Lynx 28G SerDes PHY
maintainers:
- Ioana Ciornei <ioana.ciornei@nxp.com>
description:
The Lynx 28G is a multi-lane, multi-protocol SerDes (PCIe, SATA, Ethernet)
present in multiple instances on NXP LX2160A and LX2162A SoCs. All instances
share a common register map and programming model, however they differ in
supported protocols per lane in a way that is not detectable by said
programming model without prior knowledge. The distinction is made through
the compatible string.
properties:
compatible:
oneOf:
- const: fsl,lynx-28g
deprecated: true
description:
Legacy compatibility string for Lynx 28G SerDes. Any assumption
regarding whether a certain lane supports a certain protocol may
be incorrect. Deprecated except when used as a fallback. Use
device-specific strings instead.
- items:
- const: fsl,lx2160a-serdes1
- const: fsl,lynx-28g
- items:
- const: fsl,lx2160a-serdes2
- const: fsl,lynx-28g
- items:
- const: fsl,lx2162a-serdes1
- const: fsl,lynx-28g
- items:
- const: fsl,lx2162a-serdes2
- const: fsl,lynx-28g
- const: fsl,lx2160a-serdes3
reg:
maxItems: 1
"#phy-cells":
const: 1
"#address-cells":
const: 1
"#size-cells":
const: 0
patternProperties:
"^phy@[0-7]$":
type: object
description: SerDes lane (single RX/TX differential pair)
properties:
reg:
minimum: 0
maximum: 7
description: Lane index as seen in register map
"#phy-cells":
const: 0
required:
- reg
- "#phy-cells"
additionalProperties: false
required:
- compatible
- reg
- "#phy-cells"
allOf:
# LX2162A SerDes 1 has fewer lanes than the others
- if:
properties:
compatible:
contains:
const: fsl,lx2162a-serdes1
then:
patternProperties:
"^phy@[0-7]$":
properties:
reg:
minimum: 4
maximum: 7
additionalProperties: false
examples:
- |
soc {
#address-cells = <2>;
#size-cells = <2>;
serdes@1ea0000 {
compatible = "fsl,lx2160a-serdes1", "fsl,lynx-28g";
reg = <0x0 0x1ea0000 0x0 0x1e30>;
#address-cells = <1>;
#size-cells = <0>;
#phy-cells = <1>;
phy@0 {
reg = <0>;
#phy-cells = <0>;
};
phy@1 {
reg = <1>;
#phy-cells = <0>;
};
phy@2 {
reg = <2>;
#phy-cells = <0>;
};
phy@3 {
reg = <3>;
#phy-cells = <0>;
};
phy@4 {
reg = <4>;
#phy-cells = <0>;
};
phy@5 {
reg = <5>;
#phy-cells = <0>;
};
phy@6 {
reg = <6>;
#phy-cells = <0>;
};
phy@7 {
reg = <7>;
#phy-cells = <0>;
};
};
};
|
