FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml

     # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
     %YAML 1.2
     ---
     $id: http://devicetree.org/schemas/firmware/xilinx/xlnx,zynqmp-firmware.yaml#
     $schema: http://devicetree.org/meta-schemas/core.yaml#
     
     title: Xilinx firmware driver
     
     maintainers:
      - Nava kishore Manne <nava.manne@xilinx.com>
    
    description: The zynqmp-firmware node describes the interface to platform
      firmware. ZynqMP has an interface to communicate with secure firmware.
      Firmware driver provides an interface to firmware APIs. Interface APIs
      can be used by any driver to communicate to PMUFW(Platform Management Unit).
      These requests include clock management, pin control, device control,
      power management service, FPGA service and other platform management
      services.
    
    properties:
      compatible:
        oneOf:
          - description: For implementations complying for Zynq Ultrascale+ MPSoC.
            const: xlnx,zynqmp-firmware
    
          - description: For implementations complying for Versal.
            const: xlnx,versal-firmware
    
      method:
        description: |
                     The method of calling the PM-API firmware layer.
                     Permitted values are.
                     - "smc" : SMC #0, following the SMCCC
                     - "hvc" : HVC #0, following the SMCCC
    
        $ref: /schemas/types.yaml#/definitions/string-array
        enum:
          - smc
          - hvc
    
      versal_fpga:
        $ref: /schemas/fpga/xlnx,versal-fpga.yaml#
        description: Compatible of the FPGA device.
        type: object
    
      zynqmp-aes:
        $ref: /schemas/crypto/xlnx,zynqmp-aes.yaml#
        description: The ZynqMP AES-GCM hardened cryptographic accelerator is
          used to encrypt or decrypt the data with provided key and initialization
          vector.
        type: object
    
      clock-controller:
        $ref: /schemas/clock/xlnx,versal-clk.yaml#
        description: The clock controller is a hardware block of Xilinx versal
          clock tree. It reads required input clock frequencies from the devicetree
          and acts as clock provider for all clock consumers of PS clocks.list of
          clock specifiers which are external input clocks to the given clock
          controller.
        type: object
    
    required:
      - compatible
    
    additionalProperties: false
    
    examples:
      - |
        versal-firmware {
          compatible = "xlnx,versal-firmware";
          method = "smc";
    
          versal_fpga: versal_fpga {
            compatible = "xlnx,versal-fpga";
          };
    
          xlnx_aes: zynqmp-aes {
            compatible = "xlnx,zynqmp-aes";
          };
    
          versal_clk: clock-controller {
            #clock-cells = <1>;
            compatible = "xlnx,versal-clk";
            clocks = <&ref>, <&alt_ref>, <&pl_alt_ref>;
            clock-names = "ref", "alt_ref", "pl_alt_ref";
          };
        };
    
    ...

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