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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/bcm-ns-usb3-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom Northstar USB 3.0 PHY
+
+description: |
+ Initialization of USB 3.0 PHY depends on Northstar version. There are currently
+ three known series: Ax, Bx and Cx.
+ Known A0: BCM4707 rev 0
+ Known B0: BCM4707 rev 4, BCM53573 rev 2
+ Known B1: BCM4707 rev 6
+ Known C0: BCM47094 rev 0
+
+maintainers:
+ - Rafał Miłecki <rafal@milecki.pl>
+
+properties:
+ compatible:
+ enum:
+ - brcm,ns-ax-usb3-phy
+ - brcm,ns-bx-usb3-phy
+
+ reg:
+ description: address of MDIO bus device
+ maxItems: 1
+
+ usb3-dmp-syscon:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to the DMP (Device Management Plugin) syscon
+
+ "#phy-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - usb3-dmp-syscon
+ - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ usb3-phy@10 {
+ compatible = "brcm,ns-ax-usb3-phy";
+ reg = <0x10>;
+ usb3-dmp-syscon = <&usb3_dmp>;
+ #phy-cells = <0>;
+ };
+ };
+
+ usb3_dmp: syscon@18105000 {
+ reg = <0x18105000 0x1000>;
+ };