xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/i2c/i2c-octeon.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun* Two Wire Serial Interface (TWSI) / I2C
2*4882a593Smuzhiyun
3*4882a593Smuzhiyun- compatible: "cavium,octeon-3860-twsi"
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun  Compatibility with all cn3XXX, cn5XXX and cn6XXX SOCs.
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun  or
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun  compatible: "cavium,octeon-7890-twsi"
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun  Compatibility with cn78XX SOCs.
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun- reg: The base address of the TWSI/I2C bus controller register bank.
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun- #address-cells: Must be <1>.
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun- #size-cells: Must be <0>.  I2C addresses have no size component.
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun- interrupts: A single interrupt specifier.
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun- clock-frequency: The I2C bus clock rate in Hz.
22*4882a593Smuzhiyun
23*4882a593SmuzhiyunExample:
24*4882a593Smuzhiyun	twsi0: i2c@1180000001000 {
25*4882a593Smuzhiyun		#address-cells = <1>;
26*4882a593Smuzhiyun		#size-cells = <0>;
27*4882a593Smuzhiyun		compatible = "cavium,octeon-3860-twsi";
28*4882a593Smuzhiyun		reg = <0x11800 0x00001000 0x0 0x200>;
29*4882a593Smuzhiyun		interrupts = <0 45>;
30*4882a593Smuzhiyun		clock-frequency = <100000>;
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun		rtc@68 {
33*4882a593Smuzhiyun			compatible = "dallas,ds1337";
34*4882a593Smuzhiyun			reg = <0x68>;
35*4882a593Smuzhiyun		};
36*4882a593Smuzhiyun		tmp@4c {
37*4882a593Smuzhiyun			compatible = "ti,tmp421";
38*4882a593Smuzhiyun			reg = <0x4c>;
39*4882a593Smuzhiyun		};
40*4882a593Smuzhiyun	};
41