0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/peci/peci-aspeed.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Aspeed PECI Bus Device Tree Bindings
0008
0009 maintainers:
0010 - Iwona Winiarska <iwona.winiarska@intel.com>
0011 - Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
0012
0013 allOf:
0014 - $ref: peci-controller.yaml#
0015
0016 properties:
0017 compatible:
0018 enum:
0019 - aspeed,ast2400-peci
0020 - aspeed,ast2500-peci
0021 - aspeed,ast2600-peci
0022
0023 reg:
0024 maxItems: 1
0025
0026 interrupts:
0027 maxItems: 1
0028
0029 clocks:
0030 description:
0031 Clock source for PECI controller. Should reference the external
0032 oscillator clock.
0033 maxItems: 1
0034
0035 resets:
0036 maxItems: 1
0037
0038 cmd-timeout-ms:
0039 minimum: 1
0040 maximum: 1000
0041 default: 1000
0042
0043 clock-frequency:
0044 description:
0045 The desired operation frequency of PECI controller in Hz.
0046 minimum: 2000
0047 maximum: 2000000
0048 default: 1000000
0049
0050 required:
0051 - compatible
0052 - reg
0053 - interrupts
0054 - clocks
0055 - resets
0056
0057 additionalProperties: false
0058
0059 examples:
0060 - |
0061 #include <dt-bindings/interrupt-controller/arm-gic.h>
0062 #include <dt-bindings/clock/ast2600-clock.h>
0063 peci-controller@1e78b000 {
0064 compatible = "aspeed,ast2600-peci";
0065 reg = <0x1e78b000 0x100>;
0066 interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
0067 clocks = <&syscon ASPEED_CLK_GATE_REF0CLK>;
0068 resets = <&syscon ASPEED_RESET_PECI>;
0069 cmd-timeout-ms = <1000>;
0070 clock-frequency = <1000000>;
0071 };
0072 ...
