diff --git a/Documentation/devicetree/bindings/net/ethernet-controller.yaml b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
index 9f6a5ccbcefe..40c1daff2a48 100644
--- a/Documentation/devicetree/bindings/net/ethernet-controller.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
@@ -55,55 +55,10 @@ properties:
     const: mac-address
 
   phy-connection-type:
+    $ref: /schemas/net/ethernet-phy-mode-types.yaml#definitions/phy-connection-type
     description:
       Specifies interface type between the Ethernet device and a physical
       layer (PHY) device.
-    enum:
-      # There is not a standard bus between the MAC and the PHY,
-      # something proprietary is being used to embed the PHY in the
-      # MAC.
-      - internal
-      - mii
-      - gmii
-      - sgmii
-      - psgmii
-      - qsgmii
-      - qusgmii
-      - tbi
-      - rev-mii
-      - rmii
-      - rev-rmii
-      - moca
-
-      # RX and TX delays are added by the MAC when required
-      - rgmii
-
-      # RGMII with internal RX and TX delays provided by the PHY,
-      # the MAC should not add the RX or TX delays in this case
-      - rgmii-id
-
-      # RGMII with internal RX delay provided by the PHY, the MAC
-      # should not add an RX delay in this case
-      - rgmii-rxid
-
-      # RGMII with internal TX delay provided by the PHY, the MAC
-      # should not add an TX delay in this case
-      - rgmii-txid
-      - rtbi
-      - smii
-      - xgmii
-      - trgmii
-      - 1000base-x
-      - 2500base-x
-      - 5gbase-r
-      - rxaui
-      - xaui
-
-      # 10GBASE-KR, XFI, SFI
-      - 10gbase-kr
-      - usxgmii
-      - 10gbase-r
-      - 25gbase-r
 
   phy-mode:
     $ref: "#/properties/phy-connection-type"
diff --git a/Documentation/devicetree/bindings/net/ethernet-phy-mode-types.yaml b/Documentation/devicetree/bindings/net/ethernet-phy-mode-types.yaml
new file mode 100644
index 000000000000..6d15743b4ffa
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/ethernet-phy-mode-types.yaml
@@ -0,0 +1,132 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/ethernet-phy-mode-types.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ethernet PHY Common Mode Types
+
+maintainers:
+  - David S. Miller <davem@davemloft.net>
+
+definitions:
+  phy-connection-type:
+    # const: "internal"
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/string
+      - oneOf:
+        # There is not a standard bus between the MAC and the PHY,
+        # something proprietary is being used to embed the PHY in the
+        # MAC.
+        - items:
+            - type: string
+              const: internal
+        - items:
+            - type: string
+              const: mii
+        - items:
+            - type: string
+              const: gmii
+        - items:
+            - type: string
+              const: sgmii
+        - items:
+            - type: string
+              const: psgmii
+        - items:
+            - type: string
+              const: qsgmii
+        - items:
+            - type: string
+              const: qusgmii
+        - items:
+            - type: string
+              const: tbi
+        - items:
+            - type: string
+              const: rev-mii
+        - items:
+            - type: string
+              const: rmii
+        - items:
+            - type: string
+              const: rev-rmii
+        - items:
+            - type: string
+              const: moca
+
+        # RX and TX delays are added by the MAC when required
+        - items:
+            - type: string
+              const: rgmii
+
+        # RGMII with internal RX and TX delays provided by the PHY,
+        # the MAC should not add the RX or TX delays in this case
+        - items:
+            - type: string
+              const: rgmii-id
+
+        # RGMII with internal RX delay provided by the PHY, the MAC
+        # should not add an RX delay in this case
+        - items:
+            - type: string
+              const: rgmii-rxid
+
+        # RGMII with internal TX delay provided by the PHY, the MAC
+        # should not add an TX delay in this case
+        - items:
+            - type: string
+              const: rgmii-txid
+
+        - items:
+            - type: string
+              const: rtbi
+
+        - items:
+            - type: string
+              const: smii
+
+        - items:
+            - type: string
+              const: xgmii
+
+        - items:
+            - type: string
+              const: trgmii
+
+        - items:
+            - type: string
+              const: 1000base-x
+
+        - items:
+            - type: string
+              const: 2500base-x
+
+        - items:
+            - type: string
+              const: 5gbase-r
+
+        - items:
+            - type: string
+              const: rxaui
+
+        - items:
+            - type: string
+              const: xaui
+
+        # 10GBASE-KR, XFI, SFI
+        - items:
+            - type: string
+              const: 10gbase-kr
+
+        - items:
+            - type: string
+              const: usxgmii
+
+        - items:
+            - type: string
+              const: 10gbase-r
+
+        - items:
+            - type: string
+              const: 25gbase-r
