1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/ipmi/aspeed 4 $id: http://devicetree.org/schemas/ipmi/aspeed,ast2400-kcs-bmc.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: ASPEED BMC KCS Devices 7 title: ASPEED BMC KCS Devices
8 8
9 maintainers: 9 maintainers:
10 - Andrew Jeffery <andrew@aj.id.au> 10 - Andrew Jeffery <andrew@aj.id.au>
11 11
12 description: | 12 description: |
13 The Aspeed BMC SoCs typically use the Keyboa 13 The Aspeed BMC SoCs typically use the Keyboard-Controller-Style (KCS)
14 interfaces on the LPC bus for in-band IPMI c 14 interfaces on the LPC bus for in-band IPMI communication with their host.
15 15
16 properties: 16 properties:
17 compatible: 17 compatible:
18 oneOf: 18 oneOf:
19 - description: Channel ID derived from r 19 - description: Channel ID derived from reg
20 items: 20 items:
21 enum: 21 enum:
22 - aspeed,ast2400-kcs-bmc-v2 22 - aspeed,ast2400-kcs-bmc-v2
23 - aspeed,ast2500-kcs-bmc-v2 23 - aspeed,ast2500-kcs-bmc-v2
24 - aspeed,ast2600-kcs-bmc 24 - aspeed,ast2600-kcs-bmc
25 25
26 - description: Old-style with explicit c 26 - description: Old-style with explicit channel ID, no reg
27 deprecated: true 27 deprecated: true
28 items: 28 items:
29 enum: 29 enum:
30 - aspeed,ast2400-kcs-bmc 30 - aspeed,ast2400-kcs-bmc
31 - aspeed,ast2500-kcs-bmc 31 - aspeed,ast2500-kcs-bmc
32 32
33 interrupts: 33 interrupts:
34 maxItems: 1 34 maxItems: 1
35 35
36 reg: 36 reg:
37 # maxItems: 3 37 # maxItems: 3
38 items: 38 items:
39 - description: IDR register 39 - description: IDR register
40 - description: ODR register 40 - description: ODR register
41 - description: STR register 41 - description: STR register
42 42
43 aspeed,lpc-io-reg: 43 aspeed,lpc-io-reg:
44 $ref: /schemas/types.yaml#/definitions/uin 44 $ref: /schemas/types.yaml#/definitions/uint32-array
45 minItems: 1 45 minItems: 1
46 maxItems: 2 46 maxItems: 2
47 description: | 47 description: |
48 The host CPU LPC IO data and status addr 48 The host CPU LPC IO data and status addresses for the device. For most
49 channels the status address is derived f 49 channels the status address is derived from the data address, but the
50 status address may be optionally provide 50 status address may be optionally provided.
51 51
52 aspeed,lpc-interrupts: 52 aspeed,lpc-interrupts:
53 $ref: /schemas/types.yaml#/definitions/uin 53 $ref: /schemas/types.yaml#/definitions/uint32-array
54 minItems: 2 54 minItems: 2
55 maxItems: 2 55 maxItems: 2
56 description: | 56 description: |
57 A 2-cell property expressing the LPC Ser 57 A 2-cell property expressing the LPC SerIRQ number and the interrupt
58 level/sense encoding (specified in the s 58 level/sense encoding (specified in the standard fashion).
59 59
60 Note that the generated interrupt is iss 60 Note that the generated interrupt is issued from the BMC to the host, and
61 thus the target interrupt controller is 61 thus the target interrupt controller is not captured by the BMC's
62 devicetree. 62 devicetree.
63 63
64 kcs_chan: 64 kcs_chan:
65 deprecated: true 65 deprecated: true
66 $ref: /schemas/types.yaml#/definitions/uin 66 $ref: /schemas/types.yaml#/definitions/uint32
67 description: The LPC channel number in the 67 description: The LPC channel number in the controller
68 68
69 kcs_addr: 69 kcs_addr:
70 deprecated: true 70 deprecated: true
71 $ref: /schemas/types.yaml#/definitions/uin 71 $ref: /schemas/types.yaml#/definitions/uint32
72 description: The host CPU IO map address 72 description: The host CPU IO map address
73 73
74 required: 74 required:
75 - compatible 75 - compatible
76 - interrupts 76 - interrupts
77 77
78 additionalProperties: false 78 additionalProperties: false
79 79
80 allOf: 80 allOf:
81 - if: 81 - if:
82 properties: 82 properties:
83 compatible: 83 compatible:
84 contains: 84 contains:
85 enum: 85 enum:
86 - aspeed,ast2400-kcs-bmc 86 - aspeed,ast2400-kcs-bmc
87 - aspeed,ast2500-kcs-bmc 87 - aspeed,ast2500-kcs-bmc
88 then: 88 then:
89 required: 89 required:
90 - kcs_chan 90 - kcs_chan
91 - kcs_addr 91 - kcs_addr
92 else: 92 else:
93 required: 93 required:
94 - reg 94 - reg
95 - aspeed,lpc-io-reg 95 - aspeed,lpc-io-reg
96 96
97 examples: 97 examples:
98 - | 98 - |
99 #include <dt-bindings/interrupt-controller 99 #include <dt-bindings/interrupt-controller/irq.h>
100 kcs3: kcs@24 { 100 kcs3: kcs@24 {
101 compatible = "aspeed,ast2600-kcs-bmc"; 101 compatible = "aspeed,ast2600-kcs-bmc";
102 reg = <0x24 0x1>, <0x30 0x1>, <0x3c 0x 102 reg = <0x24 0x1>, <0x30 0x1>, <0x3c 0x1>;
103 aspeed,lpc-io-reg = <0xca2>; 103 aspeed,lpc-io-reg = <0xca2>;
104 aspeed,lpc-interrupts = <11 IRQ_TYPE_L 104 aspeed,lpc-interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
105 interrupts = <8>; 105 interrupts = <8>;
106 }; 106 };
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