The DP83TD510 is a 10M single twisted pair Ethernet PHY Signed-off-by: Dan Murphy <dmurphy@xxxxxx> --- .../devicetree/bindings/net/ti,dp83td510.yaml | 62 +++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/ti,dp83td510.yaml diff --git a/Documentation/devicetree/bindings/net/ti,dp83td510.yaml b/Documentation/devicetree/bindings/net/ti,dp83td510.yaml new file mode 100644 index 000000000000..aef949c1cfdd --- /dev/null +++ b/Documentation/devicetree/bindings/net/ti,dp83td510.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2020 Texas Instruments Incorporated +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/net/ti,dp83td510.yaml#"; +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; + +title: TI DP83TD510 ethernet PHY + +allOf: + - $ref: "ethernet-controller.yaml#" + - $ref: "ethernet-phy.yaml#" + +maintainers: + - Dan Murphy <dmurphy@xxxxxx> + +description: | + The PHY is an twisted pair 10Mbps Ethernet PHY that support MII, RMII and + RGMII interfaces. + + Specifications about the Ethernet PHY can be found at: + http://www.ti.com/lit/ds/symlink/dp83td510e.pdf + +properties: + reg: + maxItems: 1 + + tx-fifo-depth: + description: | + Transmitt FIFO depth for RMII mode. The PHY only exposes 4 nibble + depths. The valid nibble depths are 4, 5, 6 and 8. + enum: [ 4, 5, 6, 8 ] + default: 5 + + rx-internal-delay-ps: + description: | + Setting this property to a non-zero number sets the RX internal delay + for the PHY. The internal delay for the PHY is fixed to 30ns relative + to receive data. + + tx-internal-delay-ps: + description: | + Setting this property to a non-zero number sets the TX internal delay + for the PHY. The internal delay for the PHY has a range of -4 to 4ns + relative to transmit data. + +required: + - reg + +examples: + - | + mdio0 { + #address-cells = <1>; + #size-cells = <0>; + ethphy0: ethernet-phy@0 { + reg = <0>; + tx-rx-output-high; + tx-fifo-depth = <5>; + rx-internal-delay-ps = <1>; + tx-internal-delay-ps = <1>; + }; + }; -- 2.28.0.585.ge1cfff676549
