ti,sci-reset.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/reset/ti,sci-reset.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: TI-SCI reset controller node bindings
    8 
    9 maintainers:
   10   - Nishanth Menon <nm@ti.com>
   11 
   12 description: |
   13   Some TI SoCs contain a system controller (like the Power Management Micro
   14   Controller (PMMC) on Keystone 66AK2G SoC) that are responsible for controlling
   15   the state of the various hardware modules present on the SoC. Communication
   16   between the host processor running an OS and the system controller happens
   17   through a protocol called TI System Control Interface (TI-SCI protocol).
   18 
   19   This reset controller node uses the TI SCI protocol to perform the reset
   20   management of various hardware modules present on the SoC. Must be a child
   21   node of the associated TI-SCI system controller node.
   22 
   23 properties:
   24   $nodename:
   25     pattern: "^reset-controller$"
   26 
   27   compatible:
   28     const: ti,sci-reset
   29 
   30   "#reset-cells":
   31     const: 2
   32     description:
   33       The two cells represent values that the TI-SCI controller defines.
   34 
   35       The first cell should contain the device ID.
   36 
   37       The second cell should contain the reset mask corresponding to the device
   38       used by system controller.
   39 
   40       Please see  http://processors.wiki.ti.com/index.php/TISCI for
   41       protocol documentation for the values to be used for different devices.
   42 
   43 
   44 additionalProperties: false
   45 
   46 examples:
   47   - |
   48     k3_reset: reset-controller {
   49         compatible = "ti,sci-reset";
   50         #reset-cells = <2>;
   51     };

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sys/contrib/device-tree/Bindings/reset/ti,sci-reset.yaml