43 lines
1.1 KiB
Plaintext
Executable file
43 lines
1.1 KiB
Plaintext
Executable file
NVIDIA Tegra186 BPMP I2C controller
|
|
|
|
In Tegra186, the BPMP (Boot and Power Management Processor) owns certain HW
|
|
devices, such as the I2C controller for the power management I2C bus. Software
|
|
running on other CPUs must perform IPC to the BPMP in order to execute
|
|
transactions on that I2C bus. This binding describes an I2C bus that is
|
|
accessed in such a fashion.
|
|
|
|
The BPMP I2C node must be located directly inside the main BPMP node. See
|
|
../firmware/nvidia,tegra186-bpmp.txt for details of the BPMP binding.
|
|
|
|
This node represents an I2C controller. See ../i2c/i2c.txt for details of the
|
|
core I2C binding.
|
|
|
|
Required properties:
|
|
- compatible:
|
|
Array of strings.
|
|
One of:
|
|
- "nvidia,tegra186-bpmp-i2c".
|
|
- #address-cells: Address cells for I2C device address.
|
|
Single-cell integer.
|
|
Must be <1>.
|
|
- #size-cells:
|
|
Single-cell integer.
|
|
Must be <0>.
|
|
- nvidia,bpmp-bus-id:
|
|
Single-cell integer.
|
|
Indicates the I2C bus number this DT node represent, as defined by the
|
|
BPMP firmware.
|
|
|
|
Example:
|
|
|
|
bpmp {
|
|
...
|
|
|
|
i2c {
|
|
compatible = "nvidia,tegra186-bpmp-i2c";
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
nvidia,bpmp-bus-id = <5>;
|
|
};
|
|
};
|