3 The I2C controller is expressed as a bus under the CPM node.
6 - compatible : "fsl,cpm1-i2c", "fsl,cpm2-i2c"
7 - reg : On CPM2 devices, the second resource doesn't specify the I2C
8 Parameter RAM itself, but the I2C_BASE field of the CPM2 Parameter RAM
9 (typically 0x8afc 0x2).
10 - #address-cells : Should be one. The cell is the i2c device address with
11 the r/w bit set to zero.
12 - #size-cells : Should be zero.
13 - clock-frequency : Can be used to set the i2c clock frequency. If
14 unspecified, a default frequency of 60kHz is being used.
15 The following two properties are deprecated. They are only used by legacy
16 i2c drivers to find the bus to probe:
17 - linux,i2c-index : Can be used to hard code an i2c bus number. By default,
18 the bus number is dynamically assigned by the i2c core.
19 - linux,i2c-class : Can be used to override the i2c class. The class is used
20 by legacy i2c device drivers to find a bus in a specific context like
21 system management, video or sound. By default, I2C_CLASS_HWMON (1) is
22 being used. The definition of the classes can be found in
25 Example, based on mpc823:
28 compatible = "fsl,mpc823-i2c",
30 reg = <0x860 0x20 0x3c80 0x30>;
32 interrupt-parent = <&CPM_PIC>;
33 fsl,cpm-command = <0x10>;
38 compatible = "dallas,ds1307";