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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/net/ti,dp83822.yaml | |
parent | Initial commit. (diff) | |
download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/net/ti,dp83822.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/net/ti,dp83822.yaml | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/ti,dp83822.yaml b/Documentation/devicetree/bindings/net/ti,dp83822.yaml new file mode 100644 index 000000000..75e8712e9 --- /dev/null +++ b/Documentation/devicetree/bindings/net/ti,dp83822.yaml @@ -0,0 +1,82 @@ +# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause) +# Copyright (C) 2020 Texas Instruments Incorporated +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/net/ti,dp83822.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: TI DP83822 ethernet PHY + +maintainers: + - Dan Murphy <dmurphy@ti.com> + +description: | + The DP83822 is a low-power, single-port, 10/100 Mbps Ethernet PHY. It + provides all of the physical layer functions needed to transmit and receive + data over standard, twisted-pair cables or to connect to an external, + fiber-optic transceiver. Additionally, the DP83822 provides flexibility to + connect to a MAC through a standard MII, RMII, or RGMII interface + + Specifications about the Ethernet PHY can be found at: + http://www.ti.com/lit/ds/symlink/dp83822i.pdf + +allOf: + - $ref: "ethernet-phy.yaml#" + +properties: + reg: + maxItems: 1 + + ti,link-loss-low: + type: boolean + description: | + DP83822 PHY in Fiber mode only. + Sets the DP83822 to detect a link drop condition when the signal goes + high. If not set then link drop will occur when the signal goes low. + This property is only applicable if the fiber mode support is strapped + to on. + + ti,fiber-mode: + type: boolean + description: | + DP83822 PHY only. + If present the DP83822 PHY is configured to operate in fiber mode + Fiber mode support can also be strapped. If the strap pin is not set + correctly or not set at all then this boolean can be used to enable it. + If the fiber mode is not strapped then signal detection for the PHY + is disabled. + In fiber mode, auto-negotiation is disabled and the PHY can only work in + 100base-fx (full and half duplex) modes. + + rx-internal-delay-ps: + description: | + DP83822 PHY only. + 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 3.5ns relative + to receive data. + + tx-internal-delay-ps: + description: | + DP83822 PHY only. + Setting this property to a non-zero number sets the TX internal delay + for the PHY. The internal delay for the PHY is fixed to 3.5ns relative + to transmit data. + +required: + - reg + +unevaluatedProperties: false + +examples: + - | + mdio0 { + #address-cells = <1>; + #size-cells = <0>; + ethphy0: ethernet-phy@0 { + reg = <0>; + rx-internal-delay-ps = <1>; + tx-internal-delay-ps = <1>; + }; + }; + +... |