xref: /freebsd/sys/contrib/device-tree/Bindings/spi/jcore,spi.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71) 
1J-Core SPI master
2
3Required properties:
4
5- compatible: Must be "jcore,spi2".
6
7- reg: Memory region for registers.
8
9- #address-cells: Must be 1.
10
11- #size-cells: Must be 0.
12
13Optional properties:
14
15- clocks: If a phandle named "ref_clk" is present, SPI clock speed
16  programming is relative to the frequency of the indicated clock.
17  Necessary only if the input clock rate is something other than a
18  fixed 50 MHz.
19
20- clock-names: Clock names, one for each phandle in clocks.
21
22See spi-bus.txt for additional properties not specific to this device.
23
24Example:
25
26spi@40 {
27	compatible = "jcore,spi2";
28	#address-cells = <1>;
29	#size-cells = <0>;
30	reg = <0x40 0x8>;
31	spi-max-frequency = <25000000>;
32	clocks = <&bus_clk>;
33	clock-names = "ref_clk";
34}
35