[PATCH net-next 1/5] dt-bindings: net: add onsemi's TS2500/NCN26010 10BASE-T1S MACPHY

[Selvamani Rajagopal]

Add YAML device tree binding for the onsemi NCN26010 and TS2500
IEEE 802.3cg compliant Ethernet transceiver devices.

Signed-off-by: Selvamani Rajagopal <Selvamani.Rajagopal@xxxxxxxxxx>
---
 .../bindings/net/onnn,ncn260xx.yaml           | 71 +++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/onnn,ncn260xx.yaml

diff --git a/Documentation/devicetree/bindings/net/onnn,ncn260xx.yaml b/Documentation/devicetree/bindings/net/onnn,ncn260xx.yaml
new file mode 100644
index 000000000..198cd7e9d
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/onnn,ncn260xx.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/onnn,ncn260xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: onsemi NCN26010/TS2500 10BASE-T1S MACPHY Ethernet Controllers
+
+maintainers:
+  - Piergiorgio Beruto <Pier.Beruto@xxxxxxxxxx>
+  - Selva Rajagopal <Selvamani.Rajagopal@xxxxxxxxxx>
+
+description: |
+  The NCN26010 and TS2500 combine a Media Access Controller (MAC) and an
+  Ethernet PHY to enable 10BASE‑T1S networks. The Ethernet Media Access
+  Controller (MAC) module implements a 10 Mbps half duplex Ethernet MAC,
+  compatible with the IEEE 802.3 standard and a 10BASE-T1S physical layer
+  transceiver integrated into the NCN26010. The communication between
+  the host and the MAC-PHY is specified in the OPEN Alliance 10BASE-T1x
+  MACPHY Serial Interface (TC6).
+
+  Specifications about the NCN26010 can be found at:
+    https://www.onsemi.com/download/data-sheet/pdf/ncn26010-d.pdf
+    https://www.onsemi.com/products/interfaces/ethernet-controllers/t30hm1ts2500
+
+allOf:
+  - $ref: /schemas/net/ethernet-controller.yaml#
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+  compatible:
+    const: onnn,ncn260xx
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description: |
+      Interrupt from MAC-PHY asserted in the event of Receive Chunks
+      Available, Transmit Chunk Credits Available and Extended Status
+      Event.
+    maxItems: 1
+
+  spi-max-frequency:
+    minimum: 15000000
+    maximum: 25000000
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - spi-max-frequency
+
+additionalProperties: false
+
+examples:
+  - |
+    spi {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      ethernet@0 {
+        compatible = "onnn,ncn260xx";
+        reg = <0>;
+        pinctrl-names = "default";
+        interrupt-parent = <&gpio>;
+        interrupts = <25 2>;
+        status = "okay";
+        spi-max-frequency = <25000000>;
+      };
+    };
--
2.43.0


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