xref: /kernel/linux/linux-5.10/Documentation/devicetree/bindings/net/intel,dwmac-plat.yaml (revision 8c2ecf20)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/intel,dwmac-plat.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Intel DWMAC glue layer Device Tree Bindings

maintainers:
  - Vineetha G. Jaya Kumaran <vineetha.g.jaya.kumaran@intel.com>

select:
  properties:
    compatible:
      contains:
        enum:
          - intel,keembay-dwmac
  required:
    - compatible

allOf:
  - $ref: "snps,dwmac.yaml#"

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - intel,keembay-dwmac
          - const: snps,dwmac-4.10a

  clocks:
    items:
      - description: GMAC main clock
      - description: PTP reference clock
      - description: Tx clock

  clock-names:
    items:
      - const: stmmaceth
      - const: ptp_ref
      - const: tx_clk

required:
  - compatible
  - clocks
  - clock-names

unevaluatedProperties: false

examples:
# FIXME: Remove defines and include the correct header file
# once it is available in mainline.
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/interrupt-controller/irq.h>
    #define MOVISOC_KMB_PSS_GBE
    #define MOVISOC_KMB_PSS_AUX_GBE_PTP
    #define MOVISOC_KMB_PSS_AUX_GBE_TX

    stmmac_axi_setup: stmmac-axi-config {
        snps,lpi_en;
        snps,wr_osr_lmt = <0x0>;
        snps,rd_osr_lmt = <0x2>;
        snps,blen = <0 0 0 0 16 8 4>;
    };

    mtl_rx_setup: rx-queues-config {
        snps,rx-queues-to-use = <2>;
        snps,rx-sched-sp;
        queue0 {
            snps,dcb-algorithm;
            snps,map-to-dma-channel = <0x0>;
            snps,priority = <0x0>;
        };

        queue1 {
            snps,dcb-algorithm;
            snps,map-to-dma-channel = <0x1>;
            snps,priority = <0x1>;
        };
    };

    mtl_tx_setup: tx-queues-config {
        snps,tx-queues-to-use = <2>;
        snps,tx-sched-wrr;
        queue0 {
           snps,weight = <0x10>;
           snps,dcb-algorithm;
           snps,priority = <0x0>;
        };

        queue1 {
            snps,weight = <0x10>;
            snps,dcb-algorithm;
            snps,priority = <0x1>;
        };
    };

    gmac0: ethernet@3a000000 {
        compatible = "intel,keembay-dwmac", "snps,dwmac-4.10a";
        interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
        interrupt-names = "macirq";
        reg = <0x3a000000 0x8000>;
        snps,perfect-filter-entries = <128>;
        phy-handle = <&eth_phy0>;
        phy-mode = "rgmii";
        rx-fifo-depth = <4096>;
        tx-fifo-depth = <4096>;
        clock-names = "stmmaceth", "ptp_ref", "tx_clk";
        clocks = <&scmi_clk MOVISOC_KMB_PSS_GBE>,
                 <&scmi_clk MOVISOC_KMB_PSS_AUX_GBE_PTP>,
                 <&scmi_clk MOVISOC_KMB_PSS_AUX_GBE_TX>;
        snps,pbl = <0x4>;
        snps,axi-config = <&stmmac_axi_setup>;
        snps,mtl-rx-config = <&mtl_rx_setup>;
        snps,mtl-tx-config = <&mtl_tx_setup>;
        snps,tso;
        status = "okay";

        mdio0 {
            #address-cells = <1>;
            #size-cells = <0>;
            compatible = "snps,dwmac-mdio";

            ethernet-phy@0 {
                reg = <0>;
            };
        };
    };

...