# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/dma/cirrus,ep9301-dma-m2p.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Cirrus Logic ep93xx SoC M2P DMA controller
maintainers:
- Alexander Sverdlin <[email protected]>
- Nikita Shubin <[email protected]>
allOf:
- $ref: dma-controller.yaml#
properties:
compatible:
oneOf:
- const: cirrus,ep9301-dma-m2p
- items:
- enum:
- cirrus,ep9302-dma-m2p
- cirrus,ep9307-dma-m2p
- cirrus,ep9312-dma-m2p
- cirrus,ep9315-dma-m2p
- const: cirrus,ep9301-dma-m2p
reg:
items:
- description: m2p0 channel registers
- description: m2p1 channel registers
- description: m2p2 channel registers
- description: m2p3 channel registers
- description: m2p4 channel registers
- description: m2p5 channel registers
- description: m2p6 channel registers
- description: m2p7 channel registers
- description: m2p8 channel registers
- description: m2p9 channel registers
clocks:
items:
- description: m2p0 channel gate clock
- description: m2p1 channel gate clock
- description: m2p2 channel gate clock
- description: m2p3 channel gate clock
- description: m2p4 channel gate clock
- description: m2p5 channel gate clock
- description: m2p6 channel gate clock
- description: m2p7 channel gate clock
- description: m2p8 channel gate clock
- description: m2p9 channel gate clock
clock-names:
items:
- const: m2p0
- const: m2p1
- const: m2p2
- const: m2p3
- const: m2p4
- const: m2p5
- const: m2p6
- const: m2p7
- const: m2p8
- const: m2p9
interrupts:
items:
- description: m2p0 channel interrupt
- description: m2p1 channel interrupt
- description: m2p2 channel interrupt
- description: m2p3 channel interrupt
- description: m2p4 channel interrupt
- description: m2p5 channel interrupt
- description: m2p6 channel interrupt
- description: m2p7 channel interrupt
- description: m2p8 channel interrupt
- description: m2p9 channel interrupt
'#dma-cells':
const: 2
description: |
The first cell is the unique device channel number as indicated by this
table for ep93xx:
0: I2S channel 1
1: I2S channel 2 (unused)
2: AC97 channel 1 (unused)
3: AC97 channel 2 (unused)
4: AC97 channel 3 (unused)
5: I2S channel 3 (unused)
6: UART1 (unused)
7: UART2 (unused)
8: UART3 (unused)
9: IRDA (unused)
The second cell is the DMA direction line number:
1: Memory to device
2: Device to memory
required:
- compatible
- reg
- clocks
- clock-names
- interrupts
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/cirrus,ep9301-syscon.h>
dma-controller@80000000 {
compatible = "cirrus,ep9301-dma-m2p";
reg = <0x80000000 0x0040>,
<0x80000040 0x0040>,
<0x80000080 0x0040>,
<0x800000c0 0x0040>,
<0x80000240 0x0040>,
<0x80000200 0x0040>,
<0x800002c0 0x0040>,
<0x80000280 0x0040>,
<0x80000340 0x0040>,
<0x80000300 0x0040>;
clocks = <&syscon EP93XX_CLK_M2P0>,
<&syscon EP93XX_CLK_M2P1>,
<&syscon EP93XX_CLK_M2P2>,
<&syscon EP93XX_CLK_M2P3>,
<&syscon EP93XX_CLK_M2P4>,
<&syscon EP93XX_CLK_M2P5>,
<&syscon EP93XX_CLK_M2P6>,
<&syscon EP93XX_CLK_M2P7>,
<&syscon EP93XX_CLK_M2P8>,
<&syscon EP93XX_CLK_M2P9>;
clock-names = "m2p0", "m2p1",
"m2p2", "m2p3",
"m2p4", "m2p5",
"m2p6", "m2p7",
"m2p8", "m2p9";
interrupt-parent = <&vic0>;
interrupts = <7>, <8>, <9>, <10>, <11>, <12>, <13>, <14>, <15>, <16>;
#dma-cells = <2>;
};
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