cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

ti,sci.yaml (3661B)


      1# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
      2%YAML 1.2
      3---
      4$id: http://devicetree.org/schemas/arm/keystone/ti,sci.yaml#
      5$schema: http://devicetree.org/meta-schemas/core.yaml#
      6
      7title: TI-SCI controller device node bindings
      8
      9maintainers:
     10  - Nishanth Menon <nm@ti.com>
     11
     12description: |
     13  Texas Instrument's processors including those belonging to Keystone generation
     14  of processors have separate hardware entity which is now responsible for the
     15  management of the System on Chip (SoC) system. These include various system
     16  level functions as well.
     17
     18  An example of such an SoC is K2G, which contains the system control hardware
     19  block called Power Management Micro Controller (PMMC). This hardware block is
     20  initialized early into boot process and provides services to Operating Systems
     21  on multiple processors including ones running Linux.
     22
     23  See http://processors.wiki.ti.com/index.php/TISCI for protocol definition.
     24
     25  The TI-SCI node describes the Texas Instrument's System Controller entity node.
     26  This parent node may optionally have additional children nodes which describe
     27  specific functionality such as clocks, power domain, reset or additional
     28  functionality as may be required for the SoC. This hierarchy also describes the
     29  relationship between the TI-SCI parent node to the child node.
     30
     31properties:
     32  $nodename:
     33    pattern: "^system-controller@[0-9a-f]+$"
     34
     35  compatible:
     36    oneOf:
     37      - description: System controller on TI 66AK2G SoC and other K3 SoCs
     38        items:
     39          - const: ti,k2g-sci
     40      - description: System controller on TI AM654 SoC
     41        items:
     42          - const: ti,am654-sci
     43
     44  reg-names:
     45    description: |
     46      Specifies the debug messages memory mapped region that is optionally
     47      made available from TI-SCI controller.
     48    const: debug_messages
     49
     50  reg:
     51    minItems: 1
     52
     53  mbox-names:
     54    description: |
     55      Specifies the mailboxes used to communicate with TI-SCI Controller
     56      made available from TI-SCI controller.
     57    items:
     58      - const: rx
     59      - const: tx
     60
     61  mboxes:
     62    minItems: 2
     63
     64  ti,system-reboot-controller:
     65    description: Determines If system reboot can be triggered by SoC reboot
     66    type: boolean
     67
     68  ti,host-id:
     69    $ref: /schemas/types.yaml#/definitions/uint32
     70    description: |
     71      Value corresponding to the host ID assigned by Firmware
     72      for identification of host processing entities such as virtual machines.
     73
     74  power-controller:
     75    type: object
     76    $ref: /schemas/soc/ti/sci-pm-domain.yaml#
     77
     78  clock-controller:
     79    type: object
     80    $ref: /schemas/clock/ti,sci-clk.yaml#
     81
     82  reset-controller:
     83    type: object
     84    $ref: /schemas/reset/ti,sci-reset.yaml#
     85
     86required:
     87  - compatible
     88  - mbox-names
     89  - mboxes
     90
     91additionalProperties: false
     92
     93examples:
     94  - |
     95    pmmc: system-controller@2921800 {
     96      compatible = "ti,k2g-sci";
     97      ti,system-reboot-controller;
     98      mbox-names = "rx", "tx";
     99      mboxes= <&msgmgr 5 2>,
    100              <&msgmgr 0 0>;
    101      reg-names = "debug_messages";
    102      reg = <0x02921800 0x800>;
    103    };
    104
    105  - |
    106    dmsc: system-controller@44083000 {
    107      compatible = "ti,k2g-sci";
    108      ti,host-id = <12>;
    109      mbox-names = "rx", "tx";
    110      mboxes= <&secure_proxy_main 11>,
    111              <&secure_proxy_main 13>;
    112      reg-names = "debug_messages";
    113      reg = <0x44083000 0x1000>;
    114
    115      k3_pds: power-controller {
    116        compatible = "ti,sci-pm-domain";
    117        #power-domain-cells = <2>;
    118      };
    119
    120      k3_clks: clock-controller {
    121        compatible = "ti,k2g-sci-clk";
    122        #clock-cells = <2>;
    123      };
    124
    125      k3_reset: reset-controller {
    126        compatible = "ti,sci-reset";
    127        #reset-cells = <2>;
    128      };
    129    };