| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/power/renesas,sysc-rmobile.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Renesas R-Mobile System Controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Geert Uytterhoeven <geert+renesas@glider.be> |
| 11 | - Magnus Damm <magnus.damm@gmail.com> |
| 12 | |
| 13 | description: | |
| 14 | The R-Mobile System Controller provides the following functions: |
| 15 | - Boot mode management, |
| 16 | - Reset generation, |
| 17 | - Power management. |
| 18 | |
| 19 | properties: |
| 20 | compatible: |
| 21 | items: |
| 22 | - enum: |
| 23 | - renesas,sysc-r8a73a4 # R-Mobile APE6 |
| 24 | - renesas,sysc-r8a7740 # R-Mobile A1 |
| 25 | - renesas,sysc-sh73a0 # SH-Mobile AG5 |
| 26 | - const: renesas,sysc-rmobile # Generic SH/R-Mobile |
| 27 | |
| 28 | reg: |
| 29 | items: |
| 30 | - description: Normally accessible register block |
| 31 | - description: Register block protected by the HPB semaphore |
| 32 | |
| 33 | pm-domains: |
| 34 | type: object |
| 35 | description: | |
| 36 | This node contains a hierarchy of PM domain nodes, which should match the |
| 37 | Power Area Hierarchy in the Power Domain Specifications section of the |
| 38 | device's datasheet. |
| 39 | |
| 40 | properties: |
| 41 | '#address-cells': |
| 42 | const: 1 |
| 43 | |
| 44 | '#size-cells': |
| 45 | const: 0 |
| 46 | |
| 47 | additionalProperties: |
| 48 | $ref: "#/$defs/pd-node" |
| 49 | |
| 50 | required: |
| 51 | - compatible |
| 52 | - reg |
| 53 | - pm-domains |
| 54 | |
| 55 | additionalProperties: false |
| 56 | |
| 57 | $defs: |
| 58 | pd-node: |
| 59 | type: object |
| 60 | description: |
| 61 | PM domain node representing a PM domain. This node should be named by |
| 62 | the real power area name, and thus its name should be unique. |
| 63 | |
| 64 | properties: |
| 65 | reg: |
| 66 | maxItems: 1 |
| 67 | description: |
| 68 | If the PM domain is not always-on, this property must contain the |
| 69 | bit index number for the corresponding power area in the various |
| 70 | Power Control and Status Registers. |
| 71 | If the PM domain is always-on, this property must be omitted. |
| 72 | |
| 73 | '#address-cells': |
| 74 | const: 1 |
| 75 | |
| 76 | '#size-cells': |
| 77 | const: 0 |
| 78 | |
| 79 | '#power-domain-cells': |
| 80 | const: 0 |
| 81 | |
| 82 | required: |
| 83 | - '#power-domain-cells' |
| 84 | |
| 85 | additionalProperties: |
| 86 | $ref: "#/$defs/pd-node" |
| 87 | |
| 88 | examples: |
| 89 | - | |
| 90 | // This shows a subset of the r8a7740 PM domain hierarchy, containing the |
| 91 | // C5 "always-on" domain, 2 of its subdomains (A4S and A4SU), and the A3SP |
| 92 | // domain, which is a subdomain of A4S. |
| 93 | sysc: system-controller@e6180000 { |
| 94 | compatible = "renesas,sysc-r8a7740", "renesas,sysc-rmobile"; |
| 95 | reg = <0xe6180000 0x8000>, <0xe6188000 0x8000>; |
| 96 | |
| 97 | pm-domains { |
| 98 | pd_c5: c5 { |
| 99 | #address-cells = <1>; |
| 100 | #size-cells = <0>; |
| 101 | #power-domain-cells = <0>; |
| 102 | |
| 103 | pd_a4s: a4s@10 { |
| 104 | reg = <10>; |
| 105 | #address-cells = <1>; |
| 106 | #size-cells = <0>; |
| 107 | #power-domain-cells = <0>; |
| 108 | |
| 109 | pd_a3sp: a3sp@11 { |
| 110 | reg = <11>; |
| 111 | #power-domain-cells = <0>; |
| 112 | }; |
| 113 | }; |
| 114 | |
| 115 | pd_a4su: a4su@20 { |
| 116 | reg = <20>; |
| 117 | #power-domain-cells = <0>; |
| 118 | }; |
| 119 | }; |
| 120 | }; |
| 121 | }; |