Documentation/devicetree/bindings/memory-controllers/st,stm32-fmc2-ebi.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/memory-controllers/st,stm32-fmc2-ebi.yaml

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System
Linux kernel
Corpus path
Documentation/devicetree/bindings/memory-controllers/st,stm32-fmc2-ebi.yaml
Extension
.yaml
Size
3448 bytes
Lines
129
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

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

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/memory-controllers/st,stm32-fmc2-ebi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: STMicroelectronics Flexible Memory Controller 2 (FMC2)

description: |
  The FMC2 functional block makes the interface with: synchronous and
  asynchronous static devices (such as PSNOR, PSRAM or other memory-mapped
  peripherals) and NAND flash memories.
  Its main purposes are:
    - to translate AXI transactions into the appropriate external device
      protocol
    - to meet the access time requirements of the external devices
  All external devices share the addresses, data and control signals with the
  controller. Each external device is accessed by means of a unique Chip
  Select. The FMC2 performs only one access at a time to an external device.

maintainers:
  - Christophe Kerello <christophe.kerello@foss.st.com>

properties:
  compatible:
    enum:
      - st,stm32mp1-fmc2-ebi
      - st,stm32mp25-fmc2-ebi

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  resets:
    maxItems: 1

  power-domains:
    maxItems: 1

  "#address-cells":
    const: 2

  "#size-cells":
    const: 1

  ranges:
    description: |
      Reflects the memory layout with four integer values per bank. Format:
      <bank-number> 0 <address of the bank> <size>

  access-controllers:
    minItems: 1
    maxItems: 2

patternProperties:
  "^.*@[0-4],[a-f0-9]+$":
    additionalProperties: true
    type: object
    $ref: mc-peripheral-props.yaml#

required:
  - "#address-cells"
  - "#size-cells"
  - compatible
  - reg
  - clocks
  - ranges

Annotation

Implementation Notes