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
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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