Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml
Extension: .yaml
Size: 4634 bytes
Lines: 191
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/arm-gic.h
dt-bindings/gpio/gpio.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/memory-controllers/ti,gpmc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Texas Instruments GPMC Memory Controller

maintainers:
  - Tony Lindgren <tony@atomide.com>
  - Roger Quadros <rogerq@kernel.org>

description:
  The GPMC is a unified memory controller dedicated for interfacing
  with external memory devices like
  - Asynchronous SRAM-like memories and ASICs
  - Asynchronous, synchronous, and page mode burst NOR flash
  - NAND flash
  - Pseudo-SRAM devices

properties:
  compatible:
    items:
      - enum:
          - ti,am3352-gpmc
          - ti,am64-gpmc
          - ti,omap2420-gpmc
          - ti,omap2430-gpmc
          - ti,omap3430-gpmc
          - ti,omap4430-gpmc

  reg:
    minItems: 1
    maxItems: 2

  reg-names:
    items:
      - const: cfg
      - const: data

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1
    description: |
      Functional clock. Used for bus timing calculations and
      GPMC configuration.

  clock-names:
    items:
      - const: fck

  power-domains:
    maxItems: 1

  dmas:
    items:
      - description: DMA channel for GPMC NAND prefetch

  dma-names:
    items:
      - const: rxtx

  "#address-cells": true

  "#size-cells": true

  gpmc,num-cs:
    description: maximum number of supported chip-select lines.

Annotation

Immediate include surface: `dt-bindings/interrupt-controller/arm-gic.h`, `dt-bindings/gpio/gpio.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.