Documentation/devicetree/bindings/sram/sram.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/sram/sram.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/sram/sram.yaml
Extension
.yaml
Size
8643 bytes
Lines
313
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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Annotated Snippet

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/sram/sram.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Generic on-chip SRAM

maintainers:
  - Rob Herring <robh@kernel.org>

description: |+
  Simple IO memory regions to be managed by the genalloc API.

  Each child of the sram node specifies a region of reserved memory. Each
  child node should use a 'reg' property to specify a specific range of
  reserved memory.

  Following the generic-names recommended practice, node names should
  reflect the purpose of the node. Unit address (@<address>) should be
  appended to the name.

properties:
  $nodename:
    pattern: "^sram(@.*)?"

  compatible:
    contains:
      enum:
        - mmio-sram
        - amlogic,meson-gxbb-sram
        - arm,juno-sram-ns
        - atmel,sama5d2-securam
        - nvidia,tegra186-sysram
        - nvidia,tegra194-sysram
        - nvidia,tegra234-sysram
        - qcom,eliza-imem
        - qcom,hawi-imem
        - qcom,kaanapali-imem
        - qcom,milos-imem
        - qcom,rpm-msg-ram
        - rockchip,rk3288-pmu-sram

  reg:
    maxItems: 1

  clocks:
    maxItems: 1
    description:
      A list of phandle and clock specifier pair that controls the single
      SRAM clock.

  "#address-cells":
    const: 1

  "#size-cells":
    const: 1

  ranges:
    maxItems: 1
    description:
      Should translate from local addresses within the sram to bus addresses.

  no-memory-wc:
    description:
      The flag indicating, that SRAM memory region has not to be remapped
      as write combining. WC is used by default.
    type: boolean

patternProperties:

Annotation

Implementation Notes