dt-bindings: net: Add bindings for AX88796C SPI Ethernet Adapter

# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause

%YAML 1.2

---

$id: http://devicetree.org/schemas/net/asix,ax88796c.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: ASIX AX88796C SPI Ethernet Adapter

maintainers:

  - Łukasz Stelmach <l.stelmach@samsung.com>

description: |

  ASIX AX88796C is an Ethernet controller with a built in PHY. This

  describes SPI mode of the chip.

  The node for this driver must be a child node of an SPI controller,

  hence all mandatory properties described in

  ../spi/spi-controller.yaml must be specified.

allOf:

  - $ref: ethernet-controller.yaml#

properties:

  compatible:

    const: asix,ax88796c

  reg:

    maxItems: 1

  spi-max-frequency:

    maximum: 40000000

  interrupts:

    maxItems: 1

  reset-gpios:

    description:

      A GPIO line handling reset of the chip. As the line is active low,

      it should be marked GPIO_ACTIVE_LOW.

    maxItems: 1

  local-mac-address: true

  mac-address: true

required:

  - compatible

  - reg

  - spi-max-frequency

  - interrupts

  - reset-gpios

additionalProperties: false

examples:

  # Artik5 eval board

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

    #include <dt-bindings/gpio/gpio.h>

    spi0 {

        #address-cells = <1>;

        #size-cells = <0>;

        ethernet@0 {

            compatible = "asix,ax88796c";

            reg = <0x0>;

            local-mac-address = [00 00 00 00 00 00]; /* Filled in by a bootloader */

            interrupt-parent = <&gpx2>;

            interrupts = <0 IRQ_TYPE_LEVEL_LOW>;

            spi-max-frequency = <40000000>;

            reset-gpios = <&gpe0 2 GPIO_ACTIVE_LOW>;

        };

    };