Documentation/devicetree/bindings/soc/intel/intel,hps-copy-engine.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 # Copyright (C) 2022, Intel Corporation
   3 %YAML 1.2
   4 ---
   5 $id: http://devicetree.org/schemas/soc/intel/intel,hps-copy-engine.yaml#
   6 $schema: http://devicetree.org/meta-schemas/core.yaml#
   7
   8 title: Intel HPS Copy Engine
   9
  10 maintainers:
  11   - Matthew Gerlach <matthew.gerlach@linux.intel.com>
  12
  13 description: |
  14   The Intel Hard Processor System (HPS) Copy Engine is an IP block used to copy
  15   a bootable image from host memory to HPS DDR.  Additionally, there is a
  16   register the HPS can use to indicate the state of booting the copied image as
  17   well as a keep-a-live indication to the host.
  18
  19 properties:
  20   compatible:
  21     const: intel,hps-copy-engine
  22
  23   '#dma-cells':
  24     const: 1
  25
  26   reg:
  27     maxItems: 1
  28
  29 required:
  30   - compatible
  31   - reg
  32
  33 additionalProperties: false
  34
  35 examples:
  36   - |
  37     bus@80000000 {
  38         compatible = "simple-bus";
  39         reg = <0x80000000 0x60000000>,
  40               <0xf9000000 0x00100000>;
  41         reg-names = "axi_h2f", "axi_h2f_lw";
  42         #address-cells = <2>;
  43         #size-cells = <1>;
  44         ranges = <0x00000000 0x00000000 0xf9000000 0x00001000>;
  45
  46         dma-controller@0 {
  47             compatible = "intel,hps-copy-engine";
  48             reg = <0x00000000 0x00000000 0x00001000>;
  49             #dma-cells = <1>;
  50         };
  51     };