xref: /freebsd/sys/contrib/device-tree/Bindings/spi/spi-cadence.txt (revision b077aed33b7b6aefca7b17ddb250cf521f938613)
1Cadence SPI controller Device Tree Bindings
2-------------------------------------------
3
4Required properties:
5- compatible		: Should be "cdns,spi-r1p6" or "xlnx,zynq-spi-r1p6".
6- reg			: Physical base address and size of SPI registers map.
7- interrupts		: Property with a value describing the interrupt
8			  number.
9- clock-names		: List of input clock names - "ref_clk", "pclk"
10			  (See clock bindings for details).
11- clocks		: Clock phandles (see clock bindings for details).
12
13Optional properties:
14- num-cs		: Number of chip selects used.
15			  If a decoder is used, this will be the number of
16			  chip selects after the decoder.
17- is-decoded-cs		: Flag to indicate whether decoder is used or not.
18
19Example:
20
21	spi@e0007000 {
22		compatible = "xlnx,zynq-spi-r1p6";
23		clock-names = "ref_clk", "pclk";
24		clocks = <&clkc 26>, <&clkc 35>;
25		interrupt-parent = <&intc>;
26		interrupts = <0 49 4>;
27		num-cs = <4>;
28		is-decoded-cs = <0>;
29		reg = <0xe0007000 0x1000>;
30	} ;
31