Create schema for LAN75XX compatible USB Ethernet controllers. The smsc75xx
driver only supports LAN7500 and LAN7505 devices.

Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
---
 .../devicetree/bindings/net/microchip,lan75xx.yaml | 52 ++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/microchip,lan75xx.yaml b/Documentation/devicetree/bindings/net/microchip,lan75xx.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..b84022976044ffec2024cff9fc0aa5016723abed
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/microchip,lan75xx.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/microchip,lan75xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip LAN7500/LAN7505 USB Ethernet Controllers
+
+maintainers:
+  - Thomas Richard <thomas.richard@bootlin.com>
+
+description:
+  Device tree properties for LAN75XX compatible USB Ethernet controller.
+
+allOf:
+  - $ref: ethernet-controller.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - usb424,7500
+          - usb424,7505
+
+  reg:
+    maxItems: 1
+
+  local-mac-address: true
+  mac-address: true
+  nvmem-cells: true
+  nvmem-cell-names: true
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    usb {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ethernet@1 {
+            compatible = "usb424,7500";
+            reg = <1>;
+            local-mac-address = [00 00 00 00 00 00];
+        };
+    };

-- 
2.53.0

Add USB tree description, including the Gigabit Ethernet controller
(LAN7500). Adding the LAN7500 node will allow the bootloader to patch the
devicetree and set the MAC address.

Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
---
 arch/arm/boot/dts/ti/omap/omap4-var-som-om44.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/ti/omap/omap4-var-som-om44.dtsi b/arch/arm/boot/dts/ti/omap/omap4-var-som-om44.dtsi
index 37d56b3010cff0f6ea6208289da0aba7328067d5..9e04aa70f98227ac0054fea6cd4521ed1323ecbd 100644
--- a/arch/arm/boot/dts/ti/omap/omap4-var-som-om44.dtsi
+++ b/arch/arm/boot/dts/ti/omap/omap4-var-som-om44.dtsi
@@ -322,4 +322,18 @@ &usbhshost {
 
 &usbhsehci {
 	phys = <&hsusb1_phy>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	usbhub: hub@1 {
+		compatible = "usb424,2514";
+		reg = <1>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethernet: ethernet@3 {
+			compatible = "usb424,7500";
+			reg = <3>;
+		};
+	};
 };

-- 
2.53.0