85 lines
1.9 KiB
YAML
85 lines
1.9 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/dma/cirrus,ep9301-dma-m2m.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Cirrus Logic ep93xx SoC DMA controller
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maintainers:
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- Alexander Sverdlin <alexander.sverdlin@gmail.com>
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- Nikita Shubin <nikita.shubin@maquefel.me>
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allOf:
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- $ref: dma-controller.yaml#
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properties:
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compatible:
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oneOf:
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- const: cirrus,ep9301-dma-m2m
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- items:
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- enum:
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- cirrus,ep9302-dma-m2m
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- cirrus,ep9307-dma-m2m
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- cirrus,ep9312-dma-m2m
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- cirrus,ep9315-dma-m2m
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- const: cirrus,ep9301-dma-m2m
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reg:
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items:
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- description: m2m0 channel registers
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- description: m2m1 channel registers
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clocks:
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items:
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- description: m2m0 channel gate clock
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- description: m2m1 channel gate clock
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clock-names:
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items:
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- const: m2m0
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- const: m2m1
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interrupts:
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items:
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- description: m2m0 channel interrupt
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- description: m2m1 channel interrupt
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'#dma-cells':
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const: 2
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description: |
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The first cell is the unique device channel number as indicated by this
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table for ep93xx:
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10: SPI controller
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11: IDE controller
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The second cell is the DMA direction line number:
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1: Memory to device
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2: Device to memory
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required:
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- compatible
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- reg
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- clocks
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- clock-names
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- interrupts
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/cirrus,ep9301-syscon.h>
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dma-controller@80000100 {
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compatible = "cirrus,ep9301-dma-m2m";
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reg = <0x80000100 0x0040>,
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<0x80000140 0x0040>;
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clocks = <&syscon EP93XX_CLK_M2M0>,
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<&syscon EP93XX_CLK_M2M1>;
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clock-names = "m2m0", "m2m1";
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interrupt-parent = <&vic0>;
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interrupts = <17>, <18>;
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#dma-cells = <2>;
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};
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