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/opp/operati 4 $id: http://devicetree.org/schemas/opp/operating-points-v2-ti-cpu.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: TI CPU OPP (Operating Performance Point 7 title: TI CPU OPP (Operating Performance Points)
8 8
9 description: 9 description:
10 TI SoCs, like those in the AM335x, AM437x, A 10 TI SoCs, like those in the AM335x, AM437x, AM57xx, AM62x, and DRA7xx
11 families, the CPU frequencies subset and the 11 families, the CPU frequencies subset and the voltage value of each
12 OPP vary based on the silicon variant used. 12 OPP vary based on the silicon variant used. The data sheet sections
13 corresponding to "Operating Performance Poin 13 corresponding to "Operating Performance Points" describe the frequency
14 and voltage values based on device type and 14 and voltage values based on device type and speed bin information
15 blown in corresponding eFuse bits as referre 15 blown in corresponding eFuse bits as referred to by the Technical
16 Reference Manual. 16 Reference Manual.
17 17
18 This document extends the operating-points-v 18 This document extends the operating-points-v2 binding by providing
19 the hardware description for the scheme ment 19 the hardware description for the scheme mentioned above.
20 20
21 maintainers: 21 maintainers:
22 - Dhruva Gole <d-gole@ti.com> 22 - Dhruva Gole <d-gole@ti.com>
23 23
24 allOf: 24 allOf:
25 - $ref: opp-v2-base.yaml# 25 - $ref: opp-v2-base.yaml#
26 26
27 properties: 27 properties:
28 compatible: 28 compatible:
29 const: operating-points-v2-ti-cpu 29 const: operating-points-v2-ti-cpu
30 30
31 syscon: 31 syscon:
32 $ref: /schemas/types.yaml#/definitions/pha 32 $ref: /schemas/types.yaml#/definitions/phandle
33 description: | 33 description: |
34 points to syscon node representing the c 34 points to syscon node representing the control module
35 register space of the SoC. 35 register space of the SoC.
36 36
37 opp-shared: true 37 opp-shared: true
38 38
39 patternProperties: 39 patternProperties:
40 '^opp(-?[0-9]+)*$': 40 '^opp(-?[0-9]+)*$':
41 type: object 41 type: object
42 additionalProperties: false 42 additionalProperties: false
43 43
44 properties: 44 properties:
45 clock-latency-ns: true 45 clock-latency-ns: true
46 opp-hz: true 46 opp-hz: true
47 opp-microvolt: true 47 opp-microvolt: true
48 opp-supported-hw: true 48 opp-supported-hw: true
49 opp-suspend: true 49 opp-suspend: true
50 turbo-mode: true 50 turbo-mode: true
51 51
52 required: 52 required:
53 - opp-hz 53 - opp-hz
54 - opp-supported-hw 54 - opp-supported-hw
55 55
56 required: 56 required:
57 - compatible 57 - compatible
58 - syscon 58 - syscon
59 59
60 additionalProperties: false 60 additionalProperties: false
61 61
62 examples: 62 examples:
63 - | 63 - |
64 opp-table { 64 opp-table {
65 compatible = "operating-points-v2-ti-c 65 compatible = "operating-points-v2-ti-cpu";
66 syscon = <&scm_conf>; 66 syscon = <&scm_conf>;
67 67
68 opp-300000000 { 68 opp-300000000 {
69 opp-hz = /bits/ 64 <300000000>; 69 opp-hz = /bits/ 64 <300000000>;
70 opp-microvolt = <1100000 1078000 1 70 opp-microvolt = <1100000 1078000 1122000>;
71 opp-supported-hw = <0x06 0x0020>; 71 opp-supported-hw = <0x06 0x0020>;
72 opp-suspend; 72 opp-suspend;
73 }; 73 };
74 74
75 opp-500000000 { 75 opp-500000000 {
76 opp-hz = /bits/ 64 <500000000>; 76 opp-hz = /bits/ 64 <500000000>;
77 opp-microvolt = <1100000 1078000 1 77 opp-microvolt = <1100000 1078000 1122000>;
78 opp-supported-hw = <0x01 0xFFFF>; 78 opp-supported-hw = <0x01 0xFFFF>;
79 }; 79 };
80 80
81 opp-600000000 { 81 opp-600000000 {
82 opp-hz = /bits/ 64 <600000000>; 82 opp-hz = /bits/ 64 <600000000>;
83 opp-microvolt = <1100000 1078000 1 83 opp-microvolt = <1100000 1078000 1122000>;
84 opp-supported-hw = <0x06 0x0040>; 84 opp-supported-hw = <0x06 0x0040>;
85 }; 85 };
86 86
87 opp-1000000000 { 87 opp-1000000000 {
88 opp-hz = /bits/ 64 <1000000000>; 88 opp-hz = /bits/ 64 <1000000000>;
89 opp-microvolt = <1325000 1298500 1 89 opp-microvolt = <1325000 1298500 1351500>;
90 opp-supported-hw = <0x04 0x0200>; 90 opp-supported-hw = <0x04 0x0200>;
91 }; 91 };
92 }; 92 };
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