diff --git a/Documentation/devicetree/bindings/pci/toshiba,tc9563.yaml b/Documentation/devicetree/bindings/pci/toshiba,tc9563.yaml
index b3ad05d90201..f084830c6d0c 100644
--- a/Documentation/devicetree/bindings/pci/toshiba,tc9563.yaml
+++ b/Documentation/devicetree/bindings/pci/toshiba,tc9563.yaml
@@ -54,7 +54,7 @@ properties:
           - description: I2C slave address
 
 patternProperties:
-  "^pcie@[1-3],0$":
+  "^pcie@[1-2],0$":
     description:
       child nodes describing the internal downstream ports of
       the tc9563 switch.
@@ -64,6 +64,21 @@ patternProperties:
       - $ref: /schemas/pci/pci-pci-bridge.yaml#
     unevaluatedProperties: false
 
+  "^pcie@[3],0$":
+    description:
+      child node describing the internal downstream port connected to the
+      integrated Ethernet MAC endpoint of the tc9563 switch.
+    type: object
+    $ref: /schemas/pci/pci-pci-bridge.yaml#
+    properties:
+      n-fts: false
+    patternProperties:
+      "^ethernet@0,[0-1]$":
+        type: object
+        properties:
+          n-fts: false
+    unevaluatedProperties: false
+
 $defs:
   tc9563-node:
     type: object
@@ -154,6 +169,8 @@ examples:
                     device_type = "pci";
                     ranges;
                     bus-range = <0x04 0xff>;
+
+                    toshiba,tx-amplitude-microvolt = <10>;
                 };
 
                 pcie@3,0 {
@@ -165,8 +182,6 @@ examples:
                     ranges;
                     bus-range = <0x05 0xff>;
 
-                    toshiba,tx-amplitude-microvolt = <10>;
-
                     ethernet@0,0 {
                         reg = <0x50000 0x0 0x0 0x0 0x0>;
                     };