| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/sram/qcom,ocmem.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: On Chip Memory (OCMEM) that is present on some Qualcomm Snapdragon SoCs. |
| 8 | |
| 9 | maintainers: |
| 10 | - Brian Masney <masneyb@onstation.org> |
| 11 | |
| 12 | description: | |
| 13 | The On Chip Memory (OCMEM) is typically used by the GPU, camera/video, and |
| 14 | audio components on some Snapdragon SoCs. |
| 15 | |
| 16 | properties: |
| 17 | compatible: |
| 18 | enum: |
| 19 | - qcom,msm8226-ocmem # v1.1.0 |
| 20 | - qcom,msm8974-ocmem # v1.4.0 |
| 21 | |
| 22 | reg: |
| 23 | items: |
| 24 | - description: Control registers |
| 25 | - description: OCMEM address range |
| 26 | |
| 27 | reg-names: |
| 28 | items: |
| 29 | - const: ctrl |
| 30 | - const: mem |
| 31 | |
| 32 | clocks: |
| 33 | minItems: 1 |
| 34 | items: |
| 35 | - description: Core clock |
| 36 | - description: Interface clock |
| 37 | |
| 38 | clock-names: |
| 39 | minItems: 1 |
| 40 | items: |
| 41 | - const: core |
| 42 | - const: iface |
| 43 | |
| 44 | '#address-cells': |
| 45 | const: 1 |
| 46 | |
| 47 | '#size-cells': |
| 48 | const: 1 |
| 49 | |
| 50 | ranges: |
| 51 | maxItems: 1 |
| 52 | |
| 53 | required: |
| 54 | - compatible |
| 55 | - reg |
| 56 | - reg-names |
| 57 | - clocks |
| 58 | - clock-names |
| 59 | - '#address-cells' |
| 60 | - '#size-cells' |
| 61 | - ranges |
| 62 | |
| 63 | additionalProperties: false |
| 64 | |
| 65 | allOf: |
| 66 | - if: |
| 67 | properties: |
| 68 | compatible: |
| 69 | contains: |
| 70 | enum: |
| 71 | - qcom,msm8974-ocmem |
| 72 | then: |
| 73 | properties: |
| 74 | clocks: |
| 75 | minItems: 2 |
| 76 | clock-names: |
| 77 | minItems: 2 |
| 78 | else: |
| 79 | properties: |
| 80 | clocks: |
| 81 | minItems: 1 |
| 82 | clock-names: |
| 83 | minItems: 1 |
| 84 | |
| 85 | patternProperties: |
| 86 | "-sram@[0-9a-f]+$": |
| 87 | type: object |
| 88 | additionalProperties: false |
| 89 | description: A region of reserved memory. |
| 90 | |
| 91 | properties: |
| 92 | reg: |
| 93 | maxItems: 1 |
| 94 | |
| 95 | required: |
| 96 | - reg |
| 97 | |
| 98 | examples: |
| 99 | - | |
| 100 | #include <dt-bindings/clock/qcom,rpmcc.h> |
| 101 | #include <dt-bindings/clock/qcom,mmcc-msm8974.h> |
| 102 | |
| 103 | sram@fdd00000 { |
| 104 | compatible = "qcom,msm8974-ocmem"; |
| 105 | |
| 106 | reg = <0xfdd00000 0x2000>, |
| 107 | <0xfec00000 0x180000>; |
| 108 | reg-names = "ctrl", |
| 109 | "mem"; |
| 110 | |
| 111 | clocks = <&rpmcc RPM_SMD_OCMEMGX_CLK>, |
| 112 | <&mmcc OCMEMCX_OCMEMNOC_CLK>; |
| 113 | clock-names = "core", |
| 114 | "iface"; |
| 115 | |
| 116 | #address-cells = <1>; |
| 117 | #size-cells = <1>; |
| 118 | ranges = <0 0xfec00000 0x100000>; |
| 119 | |
| 120 | gmu-sram@0 { |
| 121 | reg = <0x0 0x100000>; |
| 122 | }; |
| 123 | }; |