| 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>; |
| }; |
| }; |
