| 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/soc/qcom/qcom,spm.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Qualcomm Subsystem Power Manager |
| 8 | |
| 9 | maintainers: |
| 10 | - Andy Gross <agross@kernel.org> |
| 11 | - Bjorn Andersson <bjorn.andersson@linaro.org> |
| 12 | |
| 13 | description: | |
| 14 | This binding describes the Qualcomm Subsystem Power Manager, used to control |
| 15 | the peripheral logic surrounding the application cores in Qualcomm platforms. |
| 16 | |
| 17 | properties: |
| 18 | compatible: |
| 19 | items: |
| 20 | - enum: |
| 21 | - qcom,sdm660-gold-saw2-v4.1-l2 |
| 22 | - qcom,sdm660-silver-saw2-v4.1-l2 |
| 23 | - qcom,msm8998-gold-saw2-v4.1-l2 |
| 24 | - qcom,msm8998-silver-saw2-v4.1-l2 |
| 25 | - qcom,msm8909-saw2-v3.0-cpu |
| 26 | - qcom,msm8916-saw2-v3.0-cpu |
| 27 | - qcom,msm8939-saw2-v3.0-cpu |
| 28 | - qcom,msm8226-saw2-v2.1-cpu |
| 29 | - qcom,msm8974-saw2-v2.1-cpu |
| 30 | - qcom,msm8976-gold-saw2-v2.3-l2 |
| 31 | - qcom,msm8976-silver-saw2-v2.3-l2 |
| 32 | - qcom,apq8084-saw2-v2.1-cpu |
| 33 | - qcom,apq8064-saw2-v1.1-cpu |
| 34 | - const: qcom,saw2 |
| 35 | |
| 36 | reg: |
| 37 | description: Base address and size of the SPM register region |
| 38 | maxItems: 1 |
| 39 | |
| 40 | required: |
| 41 | - compatible |
| 42 | - reg |
| 43 | |
| 44 | additionalProperties: false |
| 45 | |
| 46 | examples: |
| 47 | - | |
| 48 | |
| 49 | /* Example 1: SoC using SAW2 and kpss-acc-v2 CPUIdle */ |
| 50 | cpus { |
| 51 | #address-cells = <1>; |
| 52 | #size-cells = <0>; |
| 53 | |
| 54 | cpu@0 { |
| 55 | compatible = "qcom,kryo"; |
| 56 | device_type = "cpu"; |
| 57 | enable-method = "qcom,kpss-acc-v2"; |
| 58 | qcom,saw = <&saw0>; |
| 59 | reg = <0x0>; |
| 60 | operating-points-v2 = <&cpu_opp_table>; |
| 61 | }; |
| 62 | }; |
| 63 | |
| 64 | saw0: power-manager@f9089000 { |
| 65 | compatible = "qcom,msm8974-saw2-v2.1-cpu", "qcom,saw2"; |
| 66 | reg = <0xf9089000 0x1000>; |
| 67 | }; |
| 68 | |
| 69 | - | |
| 70 | |
| 71 | /* |
| 72 | * Example 2: New-gen multi cluster SoC using SAW only for L2; |
| 73 | * This does not require any cpuidle driver, nor any cpu phandle. |
| 74 | */ |
| 75 | power-manager@17812000 { |
| 76 | compatible = "qcom,msm8998-gold-saw2-v4.1-l2", "qcom,saw2"; |
| 77 | reg = <0x17812000 0x1000>; |
| 78 | }; |
| 79 | |
| 80 | power-manager@17912000 { |
| 81 | compatible = "qcom,msm8998-silver-saw2-v4.1-l2", "qcom,saw2"; |
| 82 | reg = <0x17912000 0x1000>; |
| 83 | }; |
| 84 | |
| 85 | ... |