Documentation/devicetree/bindings/memory-controllers/st,stm32mp25-omm.yaml
Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/memory-controllers/st,stm32mp25-omm.yaml
File Facts
- System
- Linux kernel
- Corpus path
Documentation/devicetree/bindings/memory-controllers/st,stm32mp25-omm.yaml- Extension
.yaml- Size
- 6716 bytes
- Lines
- 227
- 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/clock/st,stm32mp25-rcc.hdt-bindings/interrupt-controller/arm-gic.hdt-bindings/reset/st,stm32mp25-rcc.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/st,stm32mp25-omm.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: STM32 Octo Memory Manager (OMM)
maintainers:
- Patrice Chotard <patrice.chotard@foss.st.com>
description: |
The STM32 Octo Memory Manager is a low-level interface that enables an
efficient OCTOSPI pin assignment with a full I/O matrix (before alternate
function map) and multiplex of single/dual/quad/octal SPI interfaces over
the same bus. It Supports up to:
- Two single/dual/quad/octal SPI interfaces
- Two ports for pin assignment
properties:
compatible:
const: st,stm32mp25-omm
"#address-cells":
const: 2
"#size-cells":
const: 1
ranges:
description: |
Reflects the memory layout per OSPI instance.
Format:
<chip-select> 0 <registers base address> <size>
minItems: 2
maxItems: 2
reg:
items:
- description: OMM registers
- description: OMM memory map area
reg-names:
items:
- const: regs
- const: memory_map
memory-region:
description:
Memory region shared between the 2 OCTOSPI instance.
One or two phandle to a node describing a memory mapped region
depending of child number.
minItems: 1
maxItems: 2
memory-region-names:
description:
Identify to which OSPI instance the memory region belongs to.
items:
enum: [ospi1, ospi2]
minItems: 1
maxItems: 2
clocks:
maxItems: 3
clock-names:
items:
- const: omm
- const: ospi1
Annotation
- Immediate include surface: `dt-bindings/clock/st,stm32mp25-rcc.h`, `dt-bindings/interrupt-controller/arm-gic.h`, `dt-bindings/reset/st,stm32mp25-rcc.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.