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Documentation / devicetree / bindings / spi / spi-sun6i.txt


Based on kernel version 4.16.1. Page generated on 2018-04-09 11:52 EST.

1	Allwinner A31/H3 SPI controller
2	
3	Required properties:
4	- compatible: Should be "allwinner,sun6i-a31-spi" or "allwinner,sun8i-h3-spi".
5	- reg: Should contain register location and length.
6	- interrupts: Should contain interrupt.
7	- clocks: phandle to the clocks feeding the SPI controller. Two are
8	          needed:
9	  - "ahb": the gated AHB parent clock
10	  - "mod": the parent module clock
11	- clock-names: Must contain the clock names described just above
12	- resets: phandle to the reset controller asserting this device in
13	          reset
14	
15	Optional properties:
16	- dmas: DMA specifiers for rx and tx dma. See the DMA client binding,
17		Documentation/devicetree/bindings/dma/dma.txt
18	- dma-names: DMA request names should include "rx" and "tx" if present.
19	
20	Example:
21	
22	spi1: spi@1c69000 {
23		compatible = "allwinner,sun6i-a31-spi";
24		reg = <0x01c69000 0x1000>;
25		interrupts = <0 66 4>;
26		clocks = <&ahb1_gates 21>, <&spi1_clk>;
27		clock-names = "ahb", "mod";
28		resets = <&ahb1_rst 21>;
29	};
30	
31	spi0: spi@1c68000 {
32		compatible = "allwinner,sun8i-h3-spi";
33		reg = <0x01c68000 0x1000>;
34		interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
35		clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_SPI0>;
36		clock-names = "ahb", "mod";
37		dmas = <&dma 23>, <&dma 23>;
38		dma-names = "rx", "tx";
39		pinctrl-names = "default";
40		pinctrl-0 = <&spi0_pins>;
41		resets = <&ccu RST_BUS_SPI0>;
42		#address-cells = <1>;
43		#size-cells = <0>;
44	};
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