1* Renesas USB DMA Controller Device Tree bindings
2
3Required Properties:
4-compatible: "renesas,<soctype>-usb-dmac", "renesas,usb-dmac" as fallback.
5	Examples with soctypes are:
6	  - "renesas,r8a7743-usb-dmac" (RZ/G1M)
7	  - "renesas,r8a7745-usb-dmac" (RZ/G1E)
8	  - "renesas,r8a7790-usb-dmac" (R-Car H2)
9	  - "renesas,r8a7791-usb-dmac" (R-Car M2-W)
10	  - "renesas,r8a7793-usb-dmac" (R-Car M2-N)
11	  - "renesas,r8a7794-usb-dmac" (R-Car E2)
12	  - "renesas,r8a7795-usb-dmac" (R-Car H3)
13	  - "renesas,r8a7796-usb-dmac" (R-Car M3-W)
14	  - "renesas,r8a77965-usb-dmac" (R-Car M3-N)
15	  - "renesas,r8a77990-usb-dmac" (R-Car E3)
16	  - "renesas,r8a77995-usb-dmac" (R-Car D3)
17- reg: base address and length of the registers block for the DMAC
18- interrupts: interrupt specifiers for the DMAC, one for each entry in
19  interrupt-names.
20- interrupt-names: one entry per channel, named "ch%u", where %u is the
21  channel number ranging from zero to the number of channels minus one.
22- clocks: a list of phandle + clock-specifier pairs.
23- #dma-cells: must be <1>, the cell specifies the channel number of the DMAC
24  port connected to the DMA client.
25- dma-channels: number of DMA channels
26
27Example: R8A7790 (R-Car H2) USB-DMACs
28
29	usb_dmac0: dma-controller@e65a0000 {
30		compatible = "renesas,r8a7790-usb-dmac", "renesas,usb-dmac";
31		reg = <0 0xe65a0000 0 0x100>;
32		interrupts = <0 109 IRQ_TYPE_LEVEL_HIGH
33			      0 109 IRQ_TYPE_LEVEL_HIGH>;
34		interrupt-names = "ch0", "ch1";
35		clocks = <&mstp3_clks R8A7790_CLK_USBDMAC0>;
36		#dma-cells = <1>;
37		dma-channels = <2>;
38	};
39
40	usb_dmac1: dma-controller@e65b0000 {
41		compatible = "renesas,usb-dmac";
42		reg = <0 0xe65b0000 0 0x100>;
43		interrupts = <0 110 IRQ_TYPE_LEVEL_HIGH
44			      0 110 IRQ_TYPE_LEVEL_HIGH>;
45		interrupt-names = "ch0", "ch1";
46		clocks = <&mstp3_clks R8A7790_CLK_USBDMAC1>;
47		#dma-cells = <1>;
48		dma-channels = <2>;
49	};
50