[PATCH net-next v2 2/9] dt-bindings: net: lan9645x: add LAN9645X switch bindings
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SUPERSEDED: 1 (1M)
From: Jens Emil Schulz Østergaard <hidden>
Date: 2026-03-24 10:50:17
Also in:
linux-devicetree, lkml
Subsystem:
networking drivers, networking [dsa], open firmware and flattened device tree bindings, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Andrew Lunn, Vladimir Oltean, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Revision v2 of 15 in this series; 1 review trailer.
Revisions (15)
- v1 [diff vs current]
- v2 current
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- v15 [diff vs current]
Add bindings for LAN9645X switch. We use a fallback compatible for the
smallest SKU microchip,lan96455s-switch.
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Signed-off-by: Jens Emil Schulz Østergaard <redacted>
---
Changes in v2:
- rename file to microchip,lan96455s-switch.yaml
- remove led vendor property
- add {rx,tx}-internal-delay-ps for rgmii delay
- remove labels from example
- remove container node from example
---
.../net/dsa/microchip,lan96455s-switch.yaml | 119 +++++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 120 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/dsa/microchip,lan96455s-switch.yaml b/Documentation/devicetree/bindings/net/dsa/microchip,lan96455s-switch.yaml
new file mode 100644
index 000000000000..0282e25c05d4
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/microchip,lan96455s-switch.yaml@@ -0,0 +1,119 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/dsa/microchip,lan96455s-switch.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip LAN9645x Ethernet switch + +maintainers: + - Jens Emil Schulz Østergaard <jensemil.schulzostergaard@microchip.com> + +description: | + The LAN9645x switch is a multi-port Gigabit AVB/TSN Ethernet switch with + five integrated 10/100/1000Base-T PHYs. In addition to the integrated PHYs, + it supports up to 2 RGMII/RMII, up to 2 BASE-X/SERDES/2.5GBASE-X and one + Quad-SGMII interfaces. + +properties: + compatible: + oneOf: + - enum: + - microchip,lan96455s-switch + - items: + - enum: + - microchip,lan96455f-switch + - microchip,lan96457f-switch + - microchip,lan96459f-switch + - microchip,lan96457s-switch + - microchip,lan96459s-switch + - const: microchip,lan96455s-switch + + reg: + maxItems: 1 + +$ref: dsa.yaml# + +patternProperties: + "^(ethernet-)?ports$": + type: object + additionalProperties: true + patternProperties: + "^(ethernet-)?port@[0-8]$": + type: object + description: Ethernet switch ports + + $ref: dsa-port.yaml# + + properties: + rx-internal-delay-ps: + const: 2000 + + tx-internal-delay-ps: + const: 2000 + + unevaluatedProperties: false + +oneOf: + - required: + - ports + - required: + - ethernet-ports + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + ethernet-switch@4000 { + compatible = "microchip,lan96459f-switch", "microchip,lan96455s-switch"; + reg = <0x4000 0x244>; + + ethernet-ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + phy-mode = "gmii"; + phy-handle = <&cuphy0>; + }; + + port@1 { + reg = <1>; + phy-mode = "gmii"; + phy-handle = <&cuphy1>; + }; + + port@2 { + reg = <2>; + phy-mode = "gmii"; + phy-handle = <&cuphy2>; + }; + + port@3 { + reg = <3>; + phy-mode = "gmii"; + phy-handle = <&cuphy3>; + }; + + port@7 { + reg = <7>; + phy-mode = "rgmii"; + ethernet = <&cpu_host_port>; + rx-internal-delay-ps = <2000>; + tx-internal-delay-ps = <2000>; + + fixed-link { + speed = <1000>; + full-duplex; + pause; + }; + }; + }; + }; +... +
diff --git a/MAINTAINERS b/MAINTAINERS
index 7ae698067c41..8232da1b3951 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS@@ -17278,6 +17278,7 @@ M: Jens Emil Schulz Østergaard <jensemil.schulzostergaard@microchip.com> M: UNGLinuxDriver@microchip.com L: netdev@vger.kernel.org S: Maintained +F: Documentation/devicetree/bindings/net/dsa/microchip,lan96455s-switch.yaml F: include/linux/dsa/lan9645x.h F: net/dsa/tag_lan9645x.c
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2.52.0