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