new file mode 100644
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/marvell,smi2usb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell SMI2USB MDIO Controller
+
+maintainers:
+ - Tobias Waldekranz <tobias@waldekranz.com>
+
+description: |+
+ This controller is mounted on development boards for Marvell's Link Street
+ family of Ethernet switches. It allows you to configure the switch's registers
+ using the standard MDIO interface.
+
+ Since the device is connected over USB, there is no strict requirement of
+ having a device tree representation of the device. But in order to use it with
+ the mv88e6xxx driver, you need a device tree node in which to place the switch
+ definition.
+
+allOf:
+ - $ref: "mdio.yaml#"
+
+properties:
+ compatible:
+ const: usb1286,1fa4
+ reg:
+ maxItems: 1
+ description: The USB port number on the host controller
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+
+examples:
+ - |
+ /* USB host controller */
+ &usb1 {
+ smi2usb: mdio@1 {
+ compatible = "usb1286,1fa4";
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+
+ /* MV88E6390X devboard */
+ &smi2usb {
+ switch@0 {
+ compatible = "marvell,mv88e6190";
+ status = "ok";
+ reg = <0x0>;
+
+ ports {
+ /* Port definitions */
+ };
+
+ mdio {
+ /* PHY definitions */
+ };
+ };
+ };
@@ -10096,6 +10096,12 @@ S: Maintained
F: drivers/mtd/nand/raw/marvell_nand.c
F: Documentation/devicetree/bindings/mtd/marvell-nand.txt
+MARVELL SMI2USB MDIO CONTROLLER DRIVER
+M: Tobias Waldekranz <tobias@waldekranz.com>
+L: netdev@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/net/marvell,smi2usb.yaml
+
MARVELL SOC MMC/SD/SDIO CONTROLLER DRIVER
M: Nicolas Pitre <nico@fluxnic.net>
S: Odd Fixes
Describe how the smi2usb controller can optionally use device tree bindings to reference attached devices such as switches. Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> --- .../bindings/net/marvell,smi2usb.yaml | 65 +++++++++++++++++++ MAINTAINERS | 6 ++ 2 files changed, 71 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/marvell,smi2usb.yaml