6f690e16b5
Redefine the Network-on-Chip devices to more accurately describe the interconnect topology on Qualcomm's SDM845 platform. Each interconnect device can communicate with different instances of the RPMh hardware which are described as RSCs(Resource State Coordinators). Signed-off-by: David Dai <daidavid1@codeaurora.org> Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org> Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200209183411.17195-4-sibis@codeaurora.org Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
75 lines
2.1 KiB
YAML
75 lines
2.1 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/interconnect/qcom,sdm845.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm SDM845 Network-On-Chip Interconnect
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maintainers:
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- Georgi Djakov <georgi.djakov@linaro.org>
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description: |
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SDM845 interconnect providers support system bandwidth requirements through
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RPMh hardware accelerators known as Bus Clock Manager (BCM). The provider is
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able to communicate with the BCM through the Resource State Coordinator (RSC)
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associated with each execution environment. Provider nodes must point to at
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least one RPMh device child node pertaining to their RSC and each provider
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can map to multiple RPMh resources.
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properties:
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reg:
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maxItems: 1
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compatible:
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enum:
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- qcom,sdm845-aggre1-noc
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- qcom,sdm845-aggre2-noc
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- qcom,sdm845-config-noc
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- qcom,sdm845-dc-noc
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- qcom,sdm845-gladiator-noc
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- qcom,sdm845-mem-noc
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- qcom,sdm845-mmss-noc
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- qcom,sdm845-system-noc
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'#interconnect-cells':
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const: 1
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qcom,bcm-voters:
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$ref: /schemas/types.yaml#/definitions/phandle-array
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description: |
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List of phandles to qcom,bcm-voter nodes that are required by
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this interconnect to send RPMh commands.
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qcom,bcm-voter-names:
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$ref: /schemas/types.yaml#/definitions/string-array
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description: |
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Names for each of the qcom,bcm-voters specified.
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required:
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- compatible
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- reg
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- '#interconnect-cells'
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- qcom,bcm-voters
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interconnect/qcom,sdm845.h>
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mem_noc: interconnect@1380000 {
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compatible = "qcom,sdm845-mem-noc";
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reg = <0 0x01380000 0 0x27200>;
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#interconnect-cells = <1>;
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qcom,bcm-voters = <&apps_bcm_voter>;
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};
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mmss_noc: interconnect@1740000 {
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compatible = "qcom,sdm845-mmss-noc";
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reg = <0 0x01740000 0 0x1c1000>;
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#interconnect-cells = <1>;
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qcom,bcm-voter-names = "apps", "disp";
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qcom,bcm-voters = <&apps_bcm_voter>, <&disp_bcm_voter>;
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};
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