JustOS/linux-6.13/Documentation/devicetree/bindings/net/fsl,fman.yaml

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

title: Freescale Frame Manager Device

maintainers:
  - Frank Li <Frank.Li@nxp.com>

description:
  Due to the fact that the FMan is an aggregation of sub-engines (ports, MACs,
  etc.) the FMan node will have child nodes for each of them.

properties:
  compatible:
    enum:
      - fsl,fman
    description:
      FMan version can be determined via FM_IP_REV_1 register in the
      FMan block. The offset is 0xc4 from the beginning of the
      Frame Processing Manager memory map (0xc3000 from the
      beginning of the FMan node).

  cell-index:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: |
      Specifies the index of the FMan unit.

      The cell-index value may be used by the SoC, to identify the
      FMan unit in the SoC memory map. In the table below,
      there's a description of the cell-index use in each SoC:

      - P1023:
      register[bit]      FMan unit  cell-index
      ============================================================
      DEVDISR[1]      1    0

      - P2041, P3041, P4080 P5020, P5040:
      register[bit]      FMan unit  cell-index
      ============================================================
      DCFG_DEVDISR2[6]    1    0
      DCFG_DEVDISR2[14]    2    1
        (Second FM available only in P4080 and P5040)

      - B4860, T1040, T2080, T4240:
      register[bit]      FMan unit  cell-index
      ============================================================
      DCFG_CCSR_DEVDISR2[24]    1    0
      DCFG_CCSR_DEVDISR2[25]    2    1
        (Second FM available only in T4240)

      DEVDISR, DCFG_DEVDISR2 and DCFG_CCSR_DEVDISR2 are located in
      the specific SoC "Device Configuration/Pin Control" Memory
      Map.      

  reg:
    items:
      - description: BMI configuration registers.
      - description: QMI configuration registers.
      - description: DMA configuration registers.
      - description: FPM configuration registers.
      - description: FMan controller configuration registers.
    minItems: 1

  ranges: true

  clocks:
    maxItems: 1

  clock-names:
    items:
      - const: fmanclk

  interrupts:
    items:
      - description: The first element is associated with the event interrupts.
      - description: the second element is associated with the error interrupts.

  dma-coherent: true

  ptimer-handle:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: see ptp/fsl,ptp.yaml

  fsl,qman-channel-range:
    $ref: /schemas/types.yaml#/definitions/uint32-array
    description:
      Specifies the range of the available dedicated
      channels in the FMan. The first cell specifies the beginning
      of the range and the second cell specifies the number of
      channels
    items:
      - description: The first cell specifies the beginning of the range.
      - description: |
          The second cell specifies the number of channels.
          Further information available at:
          "Work Queue (WQ) Channel Assignments in the QMan" section
          in DPAA Reference Manual.          

  fsl,qman:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: See soc/fsl/qman.txt

  fsl,bman:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: See soc/fsl/bman.txt

  fsl,erratum-a050385:
    $ref: /schemas/types.yaml#/definitions/flag
    description: A boolean property. Indicates the presence of the
      erratum A050385 which indicates that DMA transactions that are
      split can result in a FMan lock.

  '#address-cells':
    const: 1

  '#size-cells':
    const: 1

patternProperties:
  '^muram@[a-f0-9]+$':
    $ref: fsl,fman-muram.yaml

  '^port@[a-f0-9]+$':
    $ref: fsl,fman-port.yaml

  '^ethernet@[a-f0-9]+$':
    $ref: fsl,fman-dtsec.yaml

  '^mdio@[a-f0-9]+$':
    $ref: fsl,fman-mdio.yaml

  '^phc@[a-f0-9]+$':
    $ref: /schemas/ptp/fsl,ptp.yaml

required:
  - compatible
  - cell-index
  - reg
  - ranges
  - clocks
  - clock-names
  - interrupts
  - fsl,qman-channel-range

additionalProperties: false

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

    fman@400000 {
        compatible = "fsl,fman";
        reg = <0x400000 0x100000>;
        ranges = <0 0x400000 0x100000>;
        #address-cells = <1>;
        #size-cells = <1>;
        cell-index = <1>;
        clocks = <&fman_clk>;
        clock-names = "fmanclk";
        interrupts = <96 IRQ_TYPE_EDGE_FALLING>,
                     <16 IRQ_TYPE_EDGE_FALLING>;
        fsl,qman-channel-range = <0x40 0xc>;

        muram@0 {
            compatible = "fsl,fman-muram";
            reg = <0x0 0x28000>;
        };

        port@81000 {
            cell-index = <1>;
            compatible = "fsl,fman-v2-port-oh";
            reg = <0x81000 0x1000>;
        };

        fman1_rx_0x8: port@88000 {
            cell-index = <0x8>;
            compatible = "fsl,fman-v2-port-rx";
            reg = <0x88000 0x1000>;
        };

        fman1_tx_0x28: port@a8000 {
            cell-index = <0x28>;
            compatible = "fsl,fman-v2-port-tx";
            reg = <0xa8000 0x1000>;
        };

        ethernet@e0000 {
            compatible = "fsl,fman-dtsec";
            cell-index = <0>;
            reg = <0xe0000 0x1000>;
            ptp-timer = <&ptp_timer>;
            fsl,fman-ports = <&fman1_rx_0x8 &fman1_tx_0x28>;
            tbi-handle = <&tbi5>;
        };

        ptp_timer: phc@fe000 {
            compatible = "fsl,fman-ptp-timer";
            reg = <0xfe000 0x1000>;
            interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
        };

        mdio@f1000 {
            compatible = "fsl,fman-xmdio";
            reg = <0xf1000 0x1000>;
            interrupts = <101 IRQ_TYPE_EDGE_FALLING>;
        };
    };