[PATCH v2 1/6] dt-bindings: net: Add bindings for PHY DP83640

Bastien Curutchet
2024-02-27T09:40:11Z

The DP83640 is a PTP PHY. Some of his features can be enabled by
hardware straps. There is not binding yet.

Add a device tree binding to be able to override the hardware strap
configuration when needed.

Signed-off-by: Bastien Curutchet <bastien.curutchet@bootlin.com>
---
.../devicetree/bindings/net/ti,dp83640.yaml | 77 +++++++++++++++++++
1 file changed, 77 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/ti,dp83640.yaml

diff --git a/Documentation/devicetree/bindings/net/ti,dp83640.yaml b/Documentation/devicetree/bindings/net/ti,dp83640.yaml
new file mode 100644
index 000000000000..db1dc909d5cb
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/ti,dp83640.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2024 Nanometrics Inc
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/ti,dp83640.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI DP83640 ethernet PHY
+
+allOf:
+ - $ref: ethernet-controller.yaml#
+
+maintainers:
+ - Bastien Curutchet <bastien.curutchet@bootlin.com>
+
+description: |
+ The DP83640 Precision PHYTER device is an Ethernet PHY providing PTP
+ capabilities based on IEEE 1588 standard.
+
+ This device interfaces directly to the MAC layer through the
+ IEEE 802.3 Standard Media Independent Interface (MII), or Reduced MII (RMII).
+
+ Specifications about the Ethernet PHY can be found at:
+ https://www.ti.com/lit/gpn/dp83640
+
+properties:
+ reg:
+ maxItems: 1
+
+ ti,fiber-mode:
+ $ref: /schemas/types.yaml#/definitions/string
+ enum: [ disable, enable ]
+ description: |
+ If present, enables or disables the FX Fiber Mode.
+ - disable = FX Fiber Mode disabled
+ - enable = FX Fiber Mode enabled
+ Fiber mode enabling can also be strapped. If the strap pin is not set
+ correctly or not set at all then this can be used to configure it.
+
+ leds:
+ type: object
+ $ref: /schemas/leds/common.yaml#
+ description: |
+ Describes the three LEDs of the PHY.
+
+required:
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ mdio0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ ethphy0: ethernet-phy@0 {
+ reg = <0>;
+ ti,fiber-mode = "disable";
+ leds {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@0 {
+ reg = <0>;
+ label = "activity";
+ };
+ led@1 {
+ reg = <1>;
+ label = "link";
+ };
+ led@2 {
+ reg = <2>;
+ label = "speed";
+ };
+ };
+ };
+ };
--
2.43.0