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Diffstat (limited to 'Documentation/devicetree/bindings/cache/qcom,llcc.yaml')
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1 files changed, 65 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/cache/qcom,llcc.yaml b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml new file mode 100644 index 000000000000..14eb5175dac4 --- /dev/null +++ b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml @@ -0,0 +1,65 @@ +# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/cache/qcom,llcc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Last Level Cache Controller + +maintainers: + - Rishabh Bhatnagar <rishabhb@codeaurora.org> + - Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> + +description: | + LLCC (Last Level Cache Controller) provides last level of cache memory in SoC, + that can be shared by multiple clients. Clients here are different cores in the + SoC, the idea is to minimize the local caches at the clients and migrate to + common pool of memory. Cache memory is divided into partitions called slices + which are assigned to clients. Clients can query the slice details, activate + and deactivate them. + +properties: + compatible: + enum: + - qcom,sc7180-llcc + - qcom,sc7280-llcc + - qcom,sc8180x-llcc + - qcom,sc8280xp-llcc + - qcom,sdm845-llcc + - qcom,sm6350-llcc + - qcom,sm8150-llcc + - qcom,sm8250-llcc + - qcom,sm8350-llcc + - qcom,sm8450-llcc + - qcom,sm8550-llcc + + reg: + items: + - description: LLCC base register region + - description: LLCC broadcast base register region + + reg-names: + items: + - const: llcc_base + - const: llcc_broadcast_base + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - reg-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + + system-cache-controller@1100000 { + compatible = "qcom,sdm845-llcc"; + reg = <0x1100000 0x200000>, <0x1300000 0x50000> ; + reg-names = "llcc_base", "llcc_broadcast_base"; + interrupts = <GIC_SPI 582 IRQ_TYPE_LEVEL_HIGH>; + }; |