xref: /freebsd/sys/contrib/device-tree/Bindings/dma/loongson,ls2x-apbdma.yaml (revision a90b9d0159070121c221b966469c3e36d912bf82) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/dma/loongson,ls2x-apbdma.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Loongson LS2X APB DMA controller
8
9description:
10  The Loongson LS2X APB DMA controller is used for transferring data
11  between system memory and the peripherals on the APB bus.
12
13maintainers:
14  - Binbin Zhou <zhoubinbin@loongson.cn>
15
16allOf:
17  - $ref: dma-controller.yaml#
18
19properties:
20  compatible:
21    oneOf:
22      - const: loongson,ls2k1000-apbdma
23      - items:
24          - const: loongson,ls2k0500-apbdma
25          - const: loongson,ls2k1000-apbdma
26
27  reg:
28    maxItems: 1
29
30  interrupts:
31    maxItems: 1
32
33  clocks:
34    maxItems: 1
35
36  '#dma-cells':
37    const: 1
38
39required:
40  - compatible
41  - reg
42  - interrupts
43  - clocks
44  - '#dma-cells'
45
46additionalProperties: false
47
48examples:
49  - |
50    #include <dt-bindings/interrupt-controller/irq.h>
51    #include <dt-bindings/clock/loongson,ls2k-clk.h>
52
53    dma-controller@1fe00c00 {
54        compatible = "loongson,ls2k1000-apbdma";
55        reg = <0x1fe00c00 0x8>;
56        interrupt-parent = <&liointc1>;
57        interrupts = <12 IRQ_TYPE_LEVEL_HIGH>;
58        clocks = <&clk LOONGSON2_APB_CLK>;
59        #dma-cells = <1>;
60    };
61
62...
63