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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/peci/peci-aspeed.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Aspeed PECI Bus Device Tree Bindings
    8 
    9 maintainers:
   10   - Iwona Winiarska <iwona.winiarska@intel.com>
   11   - Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
   12 
   13 allOf:
   14   - $ref: peci-controller.yaml#
   15 
   16 properties:
   17   compatible:
   18     enum:
   19       - aspeed,ast2400-peci
   20       - aspeed,ast2500-peci
   21       - aspeed,ast2600-peci
   22 
   23   reg:
   24     maxItems: 1
   25 
   26   interrupts:
   27     maxItems: 1
   28 
   29   clocks:
   30     description:
   31       Clock source for PECI controller. Should reference the external
   32       oscillator clock.
   33     maxItems: 1
   34 
   35   resets:
   36     maxItems: 1
   37 
   38   cmd-timeout-ms:
   39     minimum: 1
   40     maximum: 1000
   41     default: 1000
   42 
   43   clock-frequency:
   44     description:
   45       The desired operation frequency of PECI controller in Hz.
   46     minimum: 2000
   47     maximum: 2000000
   48     default: 1000000
   49 
   50 required:
   51   - compatible
   52   - reg
   53   - interrupts
   54   - clocks
   55   - resets
   56 
   57 additionalProperties: false
   58 
   59 examples:
   60   - |
   61     #include <dt-bindings/interrupt-controller/arm-gic.h>
   62     #include <dt-bindings/clock/ast2600-clock.h>
   63     peci-controller@1e78b000 {
   64       compatible = "aspeed,ast2600-peci";
   65       reg = <0x1e78b000 0x100>;
   66       interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
   67       clocks = <&syscon ASPEED_CLK_GATE_REF0CLK>;
   68       resets = <&syscon ASPEED_RESET_PECI>;
   69       cmd-timeout-ms = <1000>;
   70       clock-frequency = <1000000>;
   71     };
   72 ...
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