[PATCH v4 net-next 01/10] dt-bindings: net: dsa: dt bindings for microchip lan937x
From: Prasanna Vengateshan <hidden>
Date: 2021-10-07 15:12:25
Also in:
linux-devicetree, lkml
Subsystem:
microchip ksz series ethernet switch driver, networking drivers, networking [dsa], open firmware and flattened device tree bindings, the rest · Maintainers:
Woojung Huh, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Vladimir Oltean, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Documentation in .yaml format and updates to the MAINTAINERS Also 'make dt_binding_check' is passed. Introduced rx-internal-delay-ps & tx-internal-delay-ps for RGMII internal delay along with min/max values. This is to address the Vladimir proposal from the previous revision. Hence Reviewed-by tag is not added as it needs a review again. Signed-off-by: Prasanna Vengateshan <redacted> --- .../bindings/net/dsa/microchip,lan937x.yaml | 160 ++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 161 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/dsa/microchip,lan937x.yaml
diff --git a/Documentation/devicetree/bindings/net/dsa/microchip,lan937x.yaml b/Documentation/devicetree/bindings/net/dsa/microchip,lan937x.yaml
new file mode 100644
index 000000000000..71851893f956
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/microchip,lan937x.yaml@@ -0,0 +1,160 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/dsa/microchip,lan937x.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: LAN937x Ethernet Switch Series Tree Bindings + +maintainers: + - UNGLinuxDriver@microchip.com + +allOf: + - $ref: dsa.yaml# + +properties: + compatible: + enum: + - microchip,lan9370 + - microchip,lan9371 + - microchip,lan9372 + - microchip,lan9373 + - microchip,lan9374 + + reg: + maxItems: 1 + + spi-max-frequency: + maximum: 50000000 + + reset-gpios: + description: Optional gpio specifier for a reset line + maxItems: 1 + + rx-internal-delay-ps: + description: Delay is in pico seconds + minimum: 2170 + maximum: 4000 + default: 0 + + tx-internal-delay-ps: + description: Delay is in pico seconds + minimum: 2170 + maximum: 4000 + default: 0 + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + //Ethernet switch connected via spi to the host + ethernet { + #address-cells = <1>; + #size-cells = <0>; + + fixed-link { + speed = <1000>; + full-duplex; + }; + }; + + spi { + #address-cells = <1>; + #size-cells = <0>; + + lan9374: switch@0 { + compatible = "microchip,lan9374"; + reg = <0>; + + spi-max-frequency = <44000000>; + + ethernet-ports { + #address-cells = <1>; + #size-cells = <0>; + port@0 { + reg = <0>; + label = "lan1"; + phy-mode = "internal"; + phy-handle = <&t1phy0>; + }; + port@1 { + reg = <1>; + label = "lan2"; + phy-mode = "internal"; + phy-handle = <&t1phy1>; + }; + port@2 { + reg = <2>; + label = "lan4"; + phy-mode = "internal"; + phy-handle = <&t1phy2>; + }; + port@3 { + reg = <3>; + label = "lan6"; + phy-mode = "internal"; + phy-handle = <&t1phy3>; + }; + port@4 { + reg = <4>; + phy-mode = "rgmii"; + ethernet = <ðernet>; + fixed-link { + speed = <1000>; + full-duplex; + }; + }; + port@5 { + reg = <5>; + label = "lan7"; + phy-mode = "rgmii"; + fixed-link { + speed = <1000>; + full-duplex; + }; + }; + port@6 { + reg = <6>; + label = "lan5"; + phy-mode = "internal"; + phy-handle = <&t1phy4>; + }; + port@7 { + reg = <7>; + label = "lan3"; + phy-mode = "internal"; + phy-handle = <&t1phy5>; + }; + }; + + mdio { + #address-cells = <1>; + #size-cells = <0>; + + t1phy0: ethernet-phy@0{ + reg = <0x0>; + }; + t1phy1: ethernet-phy@1{ + reg = <0x1>; + }; + t1phy2: ethernet-phy@2{ + reg = <0x2>; + }; + t1phy3: ethernet-phy@3{ + reg = <0x3>; + }; + t1phy4: ethernet-phy@6{ + reg = <0x6>; + }; + t1phy5: ethernet-phy@7{ + reg = <0x7>; + }; + }; + }; + };
diff --git a/MAINTAINERS b/MAINTAINERS
index 76e0fdcdd877..8b42761aaaa1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS@@ -12286,6 +12286,7 @@ M: UNGLinuxDriver@microchip.com L: netdev@vger.kernel.org S: Maintained F: Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml +F: Documentation/devicetree/bindings/net/dsa/microchip,lan937x.yaml F: drivers/net/dsa/microchip/* F: include/linux/platform_data/microchip-ksz.h F: net/dsa/tag_ksz.c
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2.27.0