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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
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# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/cache/qcom,llcc.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: Last Level Cache Controller

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maintainers:

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  - Bjorn Andersson <andersson@kernel.org>

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description: |

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  LLCC (Last Level Cache Controller) provides last level of cache memory in SoC,

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  that can be shared by multiple clients. Clients here are different cores in the

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  SoC, the idea is to minimize the local caches at the clients and migrate to

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  common pool of memory. Cache memory is divided into partitions called slices

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  which are assigned to clients. Clients can query the slice details, activate

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  and deactivate them.

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properties:

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  compatible:

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    enum:

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      - qcom,ipq5424-llcc

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      - qcom,kaanapali-llcc

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      - qcom,qcs615-llcc

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      - qcom,qcs8300-llcc

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      - qcom,qdu1000-llcc

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      - qcom,sa8775p-llcc

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      - qcom,sar1130p-llcc

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      - qcom,sar2130p-llcc

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      - qcom,sc7180-llcc

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      - qcom,sc7280-llcc

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      - qcom,sc8180x-llcc

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      - qcom,sc8280xp-llcc

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      - qcom,sdm845-llcc

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      - qcom,sm6350-llcc

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      - qcom,sm7150-llcc

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      - qcom,sm8150-llcc

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      - qcom,sm8250-llcc

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      - qcom,sm8350-llcc

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      - qcom,sm8450-llcc

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      - qcom,sm8550-llcc

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      - qcom,sm8650-llcc

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      - qcom,sm8750-llcc

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      - qcom,x1e80100-llcc

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  reg:

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    minItems: 1

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    maxItems: 10

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  reg-names:

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    minItems: 1

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    maxItems: 10

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  interrupts:

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    maxItems: 1

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  nvmem-cells:

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    items:

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      - description: Reference to an nvmem node for multi channel DDR

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  nvmem-cell-names:

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    items:

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      - const: multi-chan-ddr

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required:

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  - compatible

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  - reg

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  - reg-names

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allOf:

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  - if:

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      properties:

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        compatible:

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          contains:

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            enum:

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              - qcom,ipq5424-llcc

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    then:

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      properties:

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        reg:

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          items:

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            - description: LLCC0 base register region

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        reg-names:

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          items:

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            - const: llcc0_base

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  - if:

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      properties:

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        compatible:

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          contains:

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            enum:

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              - qcom,sar1130p-llcc

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              - qcom,sar2130p-llcc

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    then:

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      properties:

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        reg:

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          items:

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            - description: LLCC0 base register region

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            - description: LLCC1 base register region

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            - description: LLCC broadcast OR register region

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            - description: LLCC broadcast AND register region

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            - description: LLCC scratchpad broadcast OR register region

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            - description: LLCC scratchpad broadcast AND register region

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        reg-names:

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          items:

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            - const: llcc0_base

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            - const: llcc1_base

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            - const: llcc_broadcast_base

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            - const: llcc_broadcast_and_base

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            - const: llcc_scratchpad_broadcast_base

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            - const: llcc_scratchpad_broadcast_and_base

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  - if:

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      properties:

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        compatible:

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          contains:

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            enum:

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              - qcom,qcs615-llcc

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              - qcom,sc7180-llcc

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              - qcom,sm6350-llcc

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    then:

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      properties:

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        reg:

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          items:

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            - description: LLCC0 base register region

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            - description: LLCC broadcast base register region

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        reg-names:

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          items:

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            - const: llcc0_base

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            - const: llcc_broadcast_base

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  - if:

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      properties:

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        compatible:

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          contains:

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            enum:

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              - qcom,sa8775p-llcc

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    then:

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      properties:

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        reg:

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          items:

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            - description: LLCC0 base register region

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            - description: LLCC1 base register region

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            - description: LLCC2 base register region

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            - description: LLCC3 base register region

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            - description: LLCC4 base register region

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            - description: LLCC5 base register region

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            - description: LLCC broadcast base register region

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        reg-names:

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          items:

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            - const: llcc0_base

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            - const: llcc1_base

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            - const: llcc2_base

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            - const: llcc3_base

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            - const: llcc4_base

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            - const: llcc5_base

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            - const: llcc_broadcast_base

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  - if:

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      properties:

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        compatible:

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          contains:

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            enum:

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              - qcom,sc7280-llcc

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    then:

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      properties:

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        reg:

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          items:

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            - description: LLCC0 base register region

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            - description: LLCC1 base register region

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            - description: LLCC broadcast base register region

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        reg-names:

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          items:

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            - const: llcc0_base

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            - const: llcc1_base

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            - const: llcc_broadcast_base

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  - if:

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      properties:

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        compatible:

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          contains:

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            enum:

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              - qcom,qdu1000-llcc

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              - qcom,sc8180x-llcc

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              - qcom,sc8280xp-llcc

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    then:

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      properties:

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        reg:

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          items:

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            - description: LLCC0 base register region

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            - description: LLCC1 base register region

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            - description: LLCC2 base register region

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            - description: LLCC3 base register region

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            - description: LLCC4 base register region

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            - description: LLCC5 base register region

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            - description: LLCC6 base register region

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            - description: LLCC7 base register region

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            - description: LLCC broadcast base register region

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        reg-names:

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          items:

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            - const: llcc0_base

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            - const: llcc1_base

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            - const: llcc2_base

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            - const: llcc3_base

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            - const: llcc4_base

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            - const: llcc5_base

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            - const: llcc6_base

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            - const: llcc7_base

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            - const: llcc_broadcast_base

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  - if:

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      properties:

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        compatible:

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          contains:

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            enum:

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              - qcom,x1e80100-llcc

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    then:

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      properties:

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        reg:

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          items:

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            - description: LLCC0 base register region

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            - description: LLCC1 base register region

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            - description: LLCC2 base register region

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            - description: LLCC3 base register region

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            - description: LLCC4 base register region

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            - description: LLCC5 base register region

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            - description: LLCC6 base register region

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            - description: LLCC7 base register region

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            - description: LLCC broadcast base register region

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            - description: LLCC broadcast AND register region

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        reg-names:

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          items:

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            - const: llcc0_base

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            - const: llcc1_base

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            - const: llcc2_base

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            - const: llcc3_base

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            - const: llcc4_base

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            - const: llcc5_base

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            - const: llcc6_base

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            - const: llcc7_base

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            - const: llcc_broadcast_base

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            - const: llcc_broadcast_and_base

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  - if:

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      properties:

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        compatible:

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          contains:

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            enum:

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              - qcom,qcs8300-llcc

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              - qcom,sdm845-llcc

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              - qcom,sm8150-llcc

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              - qcom,sm8250-llcc

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              - qcom,sm8350-llcc

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    then:

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      properties:

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        reg:

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          items:

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            - description: LLCC0 base register region

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            - description: LLCC1 base register region

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            - description: LLCC2 base register region

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            - description: LLCC3 base register region

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            - description: LLCC broadcast base register region

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        reg-names:

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          items:

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            - const: llcc0_base

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            - const: llcc1_base

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            - const: llcc2_base

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            - const: llcc3_base

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            - const: llcc_broadcast_base

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  - if:

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      properties:

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        compatible:

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          contains:

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            enum:

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              - qcom,kaanapali-llcc

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              - qcom,sm8450-llcc

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              - qcom,sm8550-llcc

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              - qcom,sm8650-llcc

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              - qcom,sm8750-llcc

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    then:

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      properties:

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        reg:

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          items:

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            - description: LLCC0 base register region

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            - description: LLCC1 base register region

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            - description: LLCC2 base register region

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            - description: LLCC3 base register region

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            - description: LLCC broadcast OR register region

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            - description: LLCC broadcast AND register region

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        reg-names:

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          items:

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            - const: llcc0_base

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            - const: llcc1_base

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            - const: llcc2_base

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            - const: llcc3_base

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            - const: llcc_broadcast_base

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            - const: llcc_broadcast_and_base

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additionalProperties: false

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examples:

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  - |

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    #include <dt-bindings/interrupt-controller/arm-gic.h>

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    soc {

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        #address-cells = <2>;

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        #size-cells = <2>;

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        system-cache-controller@1100000 {

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            compatible = "qcom,sdm845-llcc";

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            reg = <0 0x01100000 0 0x50000>, <0 0x01180000 0 0x50000>,

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                <0 0x01200000 0 0x50000>, <0 0x01280000 0 0x50000>,

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                <0 0x01300000 0 0x50000>;

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            reg-names = "llcc0_base", "llcc1_base", "llcc2_base",

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                "llcc3_base", "llcc_broadcast_base";

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            interrupts = <GIC_SPI 582 IRQ_TYPE_LEVEL_HIGH>;

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        };

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    };

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