aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
blob: 1c9334bfc39c6d7e42a67efa190b1e8464a38399 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Device tree configuration for i2c-ocores

Required properties:
- compatible      : "opencores,i2c-ocores"
- reg             : bus address start and address range size of device
- interrupts      : interrupt number
- clock-frequency : frequency of bus clock in Hz
- #address-cells  : should be <1>
- #size-cells     : should be <0>

Optional properties:
- reg-shift       : device register offsets are shifted by this value
- regstep         : deprecated, use reg-shift above

Example:

	i2c0: ocores@a0000000 {
		#address-cells = <1>;
		#size-cells = <0>;
		compatible = "opencores,i2c-ocores";
		reg = <0xa0000000 0x8>;
		interrupts = <10>;
		clock-frequency = <20000000>;

		reg-shift = <0>;	/* 8 bit registers */

		dummy@60 {
			compatible = "dummy";
			reg = <0x60>;
		};
	};