0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/dma/renesas,usb-dmac.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Renesas USB DMA Controller
0008
0009 maintainers:
0010 - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
0011
0012 allOf:
0013 - $ref: "dma-controller.yaml#"
0014
0015 properties:
0016 compatible:
0017 items:
0018 - enum:
0019 - renesas,r8a7742-usb-dmac # RZ/G1H
0020 - renesas,r8a7743-usb-dmac # RZ/G1M
0021 - renesas,r8a7744-usb-dmac # RZ/G1N
0022 - renesas,r8a7745-usb-dmac # RZ/G1E
0023 - renesas,r8a77470-usb-dmac # RZ/G1C
0024 - renesas,r8a774a1-usb-dmac # RZ/G2M
0025 - renesas,r8a774b1-usb-dmac # RZ/G2N
0026 - renesas,r8a774c0-usb-dmac # RZ/G2E
0027 - renesas,r8a774e1-usb-dmac # RZ/G2H
0028 - renesas,r8a7790-usb-dmac # R-Car H2
0029 - renesas,r8a7791-usb-dmac # R-Car M2-W
0030 - renesas,r8a7793-usb-dmac # R-Car M2-N
0031 - renesas,r8a7794-usb-dmac # R-Car E2
0032 - renesas,r8a7795-usb-dmac # R-Car H3
0033 - renesas,r8a7796-usb-dmac # R-Car M3-W
0034 - renesas,r8a77961-usb-dmac # R-Car M3-W+
0035 - renesas,r8a77965-usb-dmac # R-Car M3-N
0036 - renesas,r8a77990-usb-dmac # R-Car E3
0037 - renesas,r8a77995-usb-dmac # R-Car D3
0038 - const: renesas,usb-dmac
0039
0040 reg:
0041 maxItems: 1
0042
0043 interrupts:
0044 minItems: 2
0045 maxItems: 2
0046
0047 interrupt-names:
0048 items:
0049 - pattern: ch0
0050 - pattern: ch1
0051
0052 clocks:
0053 maxItems: 1
0054
0055 '#dma-cells':
0056 const: 1
0057 description:
0058 The cell specifies the channel number of the DMAC port connected to
0059 the DMA client.
0060
0061 dma-channels:
0062 const: 2
0063
0064 iommus:
0065 minItems: 2
0066 maxItems: 2
0067
0068 power-domains:
0069 maxItems: 1
0070
0071 resets:
0072 maxItems: 1
0073
0074 required:
0075 - compatible
0076 - reg
0077 - interrupts
0078 - interrupt-names
0079 - clocks
0080 - '#dma-cells'
0081 - dma-channels
0082 - power-domains
0083 - resets
0084
0085 additionalProperties: false
0086
0087 examples:
0088 - |
0089 #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
0090 #include <dt-bindings/interrupt-controller/arm-gic.h>
0091 #include <dt-bindings/power/r8a7790-sysc.h>
0092
0093 usb_dmac0: dma-controller@e65a0000 {
0094 compatible = "renesas,r8a7790-usb-dmac", "renesas,usb-dmac";
0095 reg = <0xe65a0000 0x100>;
0096 interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
0097 <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
0098 interrupt-names = "ch0", "ch1";
0099 clocks = <&cpg CPG_MOD 330>;
0100 power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
0101 resets = <&cpg 330>;
0102 #dma-cells = <1>;
0103 dma-channels = <2>;
0104 };
