xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/soc/intel/intel,hps-copy-engine.yaml

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright (C) 2022, Intel Corporation
%YAML 1.2
---
$id: http://devicetree.org/schemas/soc/intel/intel,hps-copy-engine.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Intel HPS Copy Engine

maintainers:
  - Matthew Gerlach <matthew.gerlach@linux.intel.com>

description: |
  The Intel Hard Processor System (HPS) Copy Engine is an IP block used to copy
  a bootable image from host memory to HPS DDR.  Additionally, there is a
  register the HPS can use to indicate the state of booting the copied image as
  well as a keep-a-live indication to the host.

properties:
  compatible:
    const: intel,hps-copy-engine

  '#dma-cells':
    const: 1

  reg:
    maxItems: 1

required:
  - compatible
  - reg

additionalProperties: false

examples:
  - |
    bus@80000000 {
        compatible = "simple-bus";
        reg = <0x80000000 0x60000000>,
              <0xf9000000 0x00100000>;
        reg-names = "axi_h2f", "axi_h2f_lw";
        #address-cells = <2>;
        #size-cells = <1>;
        ranges = <0x00000000 0x00000000 0xf9000000 0x00001000>;

        dma-controller@0 {
            compatible = "intel,hps-copy-engine";
            reg = <0x00000000 0x00000000 0x00001000>;
            #dma-cells = <1>;
        };
    };