xref: /freebsd/sys/contrib/device-tree/Bindings/peci/peci-aspeed.yaml (revision 7ef62cebc2f965b0f640263e179276928885e33d)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/peci/peci-aspeed.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Aspeed PECI Bus

maintainers:
  - Iwona Winiarska <iwona.winiarska@intel.com>
  - Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>

allOf:
  - $ref: peci-controller.yaml#

properties:
  compatible:
    enum:
      - aspeed,ast2400-peci
      - aspeed,ast2500-peci
      - aspeed,ast2600-peci

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    description:
      Clock source for PECI controller. Should reference the external
      oscillator clock.
    maxItems: 1

  resets:
    maxItems: 1

  cmd-timeout-ms:
    minimum: 1
    maximum: 1000
    default: 1000

  clock-frequency:
    description:
      The desired operation frequency of PECI controller in Hz.
    minimum: 2000
    maximum: 2000000
    default: 1000000

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - resets

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/clock/ast2600-clock.h>
    peci-controller@1e78b000 {
      compatible = "aspeed,ast2600-peci";
      reg = <0x1e78b000 0x100>;
      interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
      clocks = <&syscon ASPEED_CLK_GATE_REF0CLK>;
      resets = <&syscon ASPEED_RESET_PECI>;
      cmd-timeout-ms = <1000>;
      clock-frequency = <1000000>;
    };
...