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