Commit 80e73332 authored by Daniel Palmer's avatar Daniel Palmer Committed by Arnd Bergmann
Browse files

dt-bindings: mstar: Add binding details for mstar,smpctrl 



This adds a YAML description of the smpctrl node needed by the
platform code for the MStar/SigmaStar Armv7 SoCs to boot secondary cpus.

Signed-off-by: default avatarDaniel Palmer <daniel@0x0f.com>
Link: https://lore.kernel.org/r/20201201134330.3037007-2-daniel@0x0f.com

'
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 5b8a05b9

Documentation/devicetree/bindings/arm/mstar/mstar,smpctrl.yaml

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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

# Copyright 2020 thingy.jp.

%YAML 1.2

---

$id: "http://devicetree.org/schemas/arm/mstar/mstar,smpctrl.yaml#"

$schema: "http://devicetree.org/meta-schemas/core.yaml#"



title: MStar/SigmaStar Armv7 SoC SMP control registers



maintainers:

  - Daniel Palmer <daniel@thingy.jp>



description: |

  MStar/SigmaStar's Armv7 SoCs that have more than one processor

  have a region of registers that allow setting the boot address

  and a magic number that allows secondary processors to leave

  the loop they are parked in by the boot ROM.



properties:

  compatible:

    items:

      - enum:

          - sstar,ssd201-smpctrl # SSD201/SSD202D

      - const: mstar,smpctrl



  reg:

    maxItems: 1



required:

  - compatible

  - reg



additionalProperties: false



examples:

  - |

    smpctrl@204000 {

        compatible = "sstar,ssd201-smpctrl", "mstar,smpctrl";

        reg = <0x204000 0x200>;

    };