Documentation/devicetree/bindings/mmc/atmel,sama5d2-sdhci.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/mmc/atmel,sama5d2-sdhci.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/mmc/atmel,sama5d2-sdhci.yaml
Extension: .yaml
Size: 2200 bytes
Lines: 94
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.

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

Dependency Surface

dt-bindings/interrupt-controller/irq.h
dt-bindings/clock/at91.h

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mmc/atmel,sama5d2-sdhci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Atmel SDHCI controller

maintainers:
  - Aubin Constans <aubin.constans@microchip.com>
  - Nicolas Ferre <nicolas.ferre@microchip.com>

description:
  Bindings for the SDHCI controller found in Atmel/Microchip SoCs.

properties:
  compatible:
    oneOf:
      - enum:
          - atmel,sama5d2-sdhci
          - microchip,sam9x60-sdhci
      - items:
          - enum:
              - microchip,sam9x7-sdhci
              - microchip,sama7d65-sdhci
              - microchip,sama7g5-sdhci
          - const: microchip,sam9x60-sdhci

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    items:
      - description: hclock
      - description: multclk
      - description: baseclk
    minItems: 2

  clock-names:
    items:
      - const: hclock
      - const: multclk
      - const: baseclk
    minItems: 2

  microchip,sdcal-inverted:
    type: boolean
    description:
      When present, polarity on the SDCAL SoC pin is inverted. The default
      polarity for this signal is described in the datasheet. For instance on
      SAMA5D2, the pin is usually tied to the GND with a resistor and a
      capacitor (see "SDMMC I/O Calibration" chapter).

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names

allOf:
  - $ref: sdhci-common.yaml#
  - if:
      properties:
        compatible:
          contains:
            enum:

Annotation

Immediate include surface: `dt-bindings/interrupt-controller/irq.h`, `dt-bindings/clock/at91.h`.
Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.