owl-dma.yaml (1748B)
1# SPDX-License-Identifier: GPL-2.0 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/dma/owl-dma.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Actions Semi Owl SoCs DMA controller 8 9description: | 10 The OWL DMA is a general-purpose direct memory access controller capable of 11 supporting 10 independent DMA channels for the Actions Semi S700 SoC and 12 12 independent DMA channels for the S500 and S900 SoC variants. 13 14maintainers: 15 - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> 16 17allOf: 18 - $ref: "dma-controller.yaml#" 19 20properties: 21 compatible: 22 enum: 23 - actions,s500-dma 24 - actions,s700-dma 25 - actions,s900-dma 26 27 reg: 28 maxItems: 1 29 30 interrupts: 31 description: 32 controller supports 4 interrupts, which are freely assignable to the 33 DMA channels. 34 maxItems: 4 35 36 "#dma-cells": 37 const: 1 38 39 dma-channels: 40 maximum: 12 41 42 dma-requests: 43 maximum: 46 44 45 clocks: 46 maxItems: 1 47 description: 48 Phandle and Specifier of the clock feeding the DMA controller. 49 50 power-domains: 51 maxItems: 1 52 53required: 54 - compatible 55 - reg 56 - interrupts 57 - "#dma-cells" 58 - dma-channels 59 - dma-requests 60 - clocks 61 62unevaluatedProperties: false 63 64examples: 65 - | 66 #include <dt-bindings/interrupt-controller/arm-gic.h> 67 dma: dma-controller@e0260000 { 68 compatible = "actions,s900-dma"; 69 reg = <0xe0260000 0x1000>; 70 interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>, 71 <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>, 72 <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>, 73 <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>; 74 #dma-cells = <1>; 75 dma-channels = <12>; 76 dma-requests = <46>; 77 clocks = <&clock 22>; 78 }; 79 80...