[PATCH v2 1/3] dt-bindings: net: Add Actions Semi Owl Ethernet MAC binding

[Cristian Ciocaltea]

Add devicetree binding for the Ethernet MAC present on the Actions
Semi Owl family of SoCs.

For the moment advertise only the support for the Actions Semi S500 SoC
variant.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea at gmail.com>
---
 .../bindings/net/actions,owl-emac.yaml        | 92 +++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/actions,owl-emac.yaml

diff --git a/Documentation/devicetree/bindings/net/actions,owl-emac.yaml b/Documentation/devicetree/bindings/net/actions,owl-emac.yaml
new file mode 100644
index 000000000000..1626e0a821b0
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/actions,owl-emac.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/actions,owl-emac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Actions Semi Owl SoCs Ethernet MAC Controller
+
+maintainers:
+  - Cristian Ciocaltea <cristian.ciocaltea at gmail.com>
+
+description: |
+  This Ethernet MAC is used on the Owl family of SoCs from Actions Semi.
+  It provides the RMII and SMII interfaces and is compliant with the
+  IEEE 802.3 CSMA/CD standard, supporting both half-duplex and full-duplex
+  operation modes at 10/100 Mb/s data transfer rates.
+
+allOf:
+  - $ref: "ethernet-controller.yaml#"
+
+properties:
+  compatible:
+    oneOf:
+      - const: actions,owl-emac
+      - items:
+          - enum:
+              - actions,s500-emac
+          - const: actions,owl-emac
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    minItems: 2
+    maxItems: 2
+
+  clock-names:
+    additionalItems: false
+    items:
+      - const: eth
+      - const: rmii
+
+  resets:
+    maxItems: 1
+
+  actions,ethcfg:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to the device containing custom config.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - resets
+  - phy-mode
+  - phy-handle
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/actions,s500-cmu.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/reset/actions,s500-reset.h>
+
+    ethernet at b0310000 {
+        compatible = "actions,s500-emac", "actions,owl-emac";
+        reg = <0xb0310000 0x10000>;
+        interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&cmu 59 /*CLK_ETHERNET*/>, <&cmu CLK_RMII_REF>;
+        clock-names = "eth", "rmii";
+        resets = <&cmu RESET_ETHERNET>;
+        phy-mode = "rmii";
+        phy-handle = <&eth_phy>;
+
+        mdio {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            eth_phy: ethernet-phy at 3 {
+                reg = <0x3>;
+                interrupt-parent = <&sirq>;
+                interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+            };
+        };
+    };
-- 
2.30.2