1 files changed, 138 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/cortina,gemini-ethernet.yaml b/Documentation/devicetree/bindings/net/cortina,gemini-ethernet.yaml
new file mode 100644
index 000000000000..253b5d1407ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/cortina,gemini-ethernet.yaml
@@ -0,0 +1,138 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/cortina,gemini-ethernet.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cortina Systems Gemini Ethernet Controller
+
+maintainers:
+  - Linus Walleij <linus.walleij@linaro.org>
+
+description: |
+  This ethernet controller is found in the Gemini SoC family:
+  StorLink SL3512 and SL3516, also known as Cortina Systems
+  CS3512 and CS3516.
+
+properties:
+  compatible:
+    const: cortina,gemini-ethernet
+
+  reg:
+    minItems: 3
+    description: must contain the global registers and the V-bit and A-bit
+      memory areas, in total three register sets.
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  ranges: true
+
+#The subnodes represents the two ethernet ports in this device.
+#They are not independent of each other since they share resources
+#in the parent node, and are thus children.
+patternProperties:
+  "^ethernet-port@[0-9]+$":
+    type: object
+    unevaluatedProperties: false
+    description: contains the resources for ethernet port
+    allOf:
+      - $ref: ethernet-controller.yaml#
+    properties:
+      compatible:
+        const: cortina,gemini-ethernet-port
+
+      reg:
+        items:
+          - description: DMA/TOE memory
+          - description: GMAC memory area of the port
+
+      interrupts:
+        maxItems: 1
+        description: should contain the interrupt line of the port.
+                     this is nominally a level interrupt active high.
+
+      resets:
+        maxItems: 1
+        description: this must provide an SoC-integrated reset line for the port.
+
+      clocks:
+        maxItems: 1
+        description: this should contain a handle to the PCLK clock for
+                     clocking the silicon in this port
+
+      clock-names:
+        const: PCLK
+
+    required:
+      - reg
+      - compatible
+      - interrupts
+      - resets
+      - clocks
+      - clock-names
+
+required:
+  - compatible
+  - reg
+  - ranges
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/clock/cortina,gemini-clock.h>
+    #include <dt-bindings/reset/cortina,gemini-reset.h>
+    mdio0: mdio {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      phy0: ethernet-phy@1 {
+        reg = <1>;
+        device_type = "ethernet-phy";
+      };
+      phy1: ethernet-phy@3 {
+        reg = <3>;
+        device_type = "ethernet-phy";
+      };
+    };
+
+
+    ethernet@60000000 {
+        compatible = "cortina,gemini-ethernet";
+        reg = <0x60000000 0x4000>, /* Global registers, queue */
+              <0x60004000 0x2000>, /* V-bit */
+              <0x60006000 0x2000>; /* A-bit */
+        #address-cells = <1>;
+        #size-cells = <1>;
+        ranges;
+
+        gmac0: ethernet-port@0 {
+                compatible = "cortina,gemini-ethernet-port";
+                reg = <0x60008000 0x2000>, /* Port 0 DMA/TOE */
+                      <0x6000a000 0x2000>; /* Port 0 GMAC */
+                interrupt-parent = <&intcon>;
+                interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
+                resets = <&syscon GEMINI_RESET_GMAC0>;
+                clocks = <&syscon GEMINI_CLK_GATE_GMAC0>;
+                clock-names = "PCLK";
+                phy-mode = "rgmii";
+                phy-handle = <&phy0>;
+        };
+
+        gmac1: ethernet-port@1 {
+                compatible = "cortina,gemini-ethernet-port";
+                reg = <0x6000c000 0x2000>, /* Port 1 DMA/TOE */
+                      <0x6000e000 0x2000>; /* Port 1 GMAC */
+                interrupt-parent = <&intcon>;
+                interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
+                resets = <&syscon GEMINI_RESET_GMAC1>;
+                clocks = <&syscon GEMINI_CLK_GATE_GMAC1>;
+                clock-names = "PCLK";
+                phy-mode = "rgmii";
+                phy-handle = <&phy1>;
+        };
+    };