| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/dma/loongson,ls1b-apbdma.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Loongson-1 APB DMA Controller |
| |
| maintainers: |
| - Keguang Zhang <keguang.zhang@gmail.com> |
| |
| description: |
| Loongson-1 APB DMA controller provides 3 independent channels for |
| peripherals such as NAND, audio playback and capture. |
| |
| properties: |
| compatible: |
| oneOf: |
| - const: loongson,ls1b-apbdma |
| - items: |
| - enum: |
| - loongson,ls1a-apbdma |
| - loongson,ls1c-apbdma |
| - const: loongson,ls1b-apbdma |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| items: |
| - description: NAND interrupt |
| - description: Audio playback interrupt |
| - description: Audio capture interrupt |
| |
| interrupt-names: |
| items: |
| - const: ch0 |
| - const: ch1 |
| - const: ch2 |
| |
| '#dma-cells': |
| const: 1 |
| |
| required: |
| - compatible |
| - reg |
| - interrupts |
| - interrupt-names |
| - '#dma-cells' |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/irq.h> |
| dma-controller@1fd01160 { |
| compatible = "loongson,ls1b-apbdma"; |
| reg = <0x1fd01160 0x4>; |
| interrupt-parent = <&intc0>; |
| interrupts = <13 IRQ_TYPE_EDGE_RISING>, |
| <14 IRQ_TYPE_EDGE_RISING>, |
| <15 IRQ_TYPE_EDGE_RISING>; |
| interrupt-names = "ch0", "ch1", "ch2"; |
| #dma-cells = <1>; |
| }; |
