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Diffstat (limited to 'Documentation/devicetree/bindings/interconnect')
8 files changed, 642 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/interconnect/fsl,imx8m-noc.yaml b/Documentation/devicetree/bindings/interconnect/fsl,imx8m-noc.yaml new file mode 100644 index 000000000..a8873739d --- /dev/null +++ b/Documentation/devicetree/bindings/interconnect/fsl,imx8m-noc.yaml @@ -0,0 +1,101 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interconnect/fsl,imx8m-noc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Generic i.MX bus frequency device + +maintainers: + - Leonard Crestez <leonard.crestez@nxp.com> + +description: | + The i.MX SoC family has multiple buses for which clock frequency (and + sometimes voltage) can be adjusted. + + Some of those buses expose register areas mentioned in the memory maps as GPV + ("Global Programmers View") but not all. Access to this area might be denied + for normal (non-secure) world. + + The buses are based on externally licensed IPs such as ARM NIC-301 and + Arteris FlexNOC but DT bindings are specific to the integration of these bus + interconnect IPs into imx SOCs. + +properties: + compatible: + oneOf: + - items: + - enum: + - fsl,imx8mn-nic + - fsl,imx8mm-nic + - fsl,imx8mq-nic + - const: fsl,imx8m-nic + - items: + - enum: + - fsl,imx8mn-noc + - fsl,imx8mm-noc + - fsl,imx8mq-noc + - const: fsl,imx8m-noc + - const: fsl,imx8m-nic + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + operating-points-v2: true + opp-table: true + + fsl,ddrc: + $ref: "/schemas/types.yaml#/definitions/phandle" + description: + Phandle to DDR Controller. + + '#interconnect-cells': + description: + If specified then also act as an interconnect provider. Should only be + set once per soc on the main noc. + const: 1 + +required: + - compatible + - clocks + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/imx8mm-clock.h> + #include <dt-bindings/interconnect/imx8mm.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + + noc: interconnect@32700000 { + compatible = "fsl,imx8mm-noc", "fsl,imx8m-noc"; + reg = <0x32700000 0x100000>; + clocks = <&clk IMX8MM_CLK_NOC>; + #interconnect-cells = <1>; + fsl,ddrc = <&ddrc>; + + operating-points-v2 = <&noc_opp_table>; + noc_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-133M { + opp-hz = /bits/ 64 <133333333>; + }; + opp-800M { + opp-hz = /bits/ 64 <800000000>; + }; + }; + }; + + ddrc: memory-controller@3d400000 { + compatible = "fsl,imx8mm-ddrc", "fsl,imx8m-ddrc"; + reg = <0x3d400000 0x400000>; + clock-names = "core", "pll", "alt", "apb"; + clocks = <&clk IMX8MM_CLK_DRAM_CORE>, + <&clk IMX8MM_DRAM_PLL>, + <&clk IMX8MM_CLK_DRAM_ALT>, + <&clk IMX8MM_CLK_DRAM_APB>; + }; diff --git a/Documentation/devicetree/bindings/interconnect/interconnect.txt b/Documentation/devicetree/bindings/interconnect/interconnect.txt new file mode 100644 index 000000000..138c544c8 --- /dev/null +++ b/Documentation/devicetree/bindings/interconnect/interconnect.txt @@ -0,0 +1,86 @@ +Interconnect Provider Device Tree Bindings +========================================= + +The purpose of this document is to define a common set of generic interconnect +providers/consumers properties. + + += interconnect providers = + +The interconnect provider binding is intended to represent the interconnect +controllers in the system. Each provider registers a set of interconnect +nodes, which expose the interconnect related capabilities of the interconnect +to consumer drivers. These capabilities can be throughput, latency, priority +etc. The consumer drivers set constraints on interconnect path (or endpoints) +depending on the use case. Interconnect providers can also be interconnect +consumers, such as in the case where two network-on-chip fabrics interface +directly. + +Required properties: +- compatible : contains the interconnect provider compatible string +- #interconnect-cells : number of cells in a interconnect specifier needed to + encode the interconnect node id and optionally add a + path tag + +Example: + + snoc: interconnect@580000 { + compatible = "qcom,msm8916-snoc"; + #interconnect-cells = <1>; + reg = <0x580000 0x14000>; + clock-names = "bus_clk", "bus_a_clk"; + clocks = <&rpmcc RPM_SMD_SNOC_CLK>, + <&rpmcc RPM_SMD_SNOC_A_CLK>; + }; + + += interconnect consumers = + +The interconnect consumers are device nodes which dynamically express their +bandwidth requirements along interconnect paths they are connected to. There +can be multiple interconnect providers on a SoC and the consumer may consume +multiple paths from different providers depending on use case and the +components it has to interact with. + +Required properties: +interconnects : Pairs of phandles and interconnect provider specifier to denote + the edge source and destination ports of the interconnect path. + An optional path tag value could specified as additional argument + to both endpoints and in such cases, this information will be passed + to the interconnect framework to do aggregation based on the attached + tag. + +Optional properties: +interconnect-names : List of interconnect path name strings sorted in the same + order as the interconnects property. Consumers drivers will use + interconnect-names to match interconnect paths with interconnect + specifier pairs. + + Reserved interconnect names: + * dma-mem: Path from the device to the main memory of + the system + +Example: + + sdhci@7864000 { + ... + interconnects = <&pnoc MASTER_SDCC_1 &bimc SLAVE_EBI_CH0>; + interconnect-names = "sdhc-mem"; + }; + +Example with path tags: + + gnoc: interconnect@17900000 { + ... + interconnect-cells = <2>; + }; + + mnoc: interconnect@1380000 { + ... + interconnect-cells = <2>; + }; + + cpu@0 { + ... + interconnects = <&gnoc MASTER_APPSS_PROC 3 &mnoc SLAVE_EBI1 3>; + } diff --git a/Documentation/devicetree/bindings/interconnect/qcom,bcm-voter.yaml b/Documentation/devicetree/bindings/interconnect/qcom,bcm-voter.yaml new file mode 100644 index 000000000..e23df4836 --- /dev/null +++ b/Documentation/devicetree/bindings/interconnect/qcom,bcm-voter.yaml @@ -0,0 +1,65 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interconnect/qcom,bcm-voter.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm BCM-Voter Interconnect + +maintainers: + - Georgi Djakov <georgi.djakov@linaro.org> + +description: | + The Bus Clock Manager (BCM) is a dedicated hardware accelerator that manages + shared system resources by aggregating requests from multiple Resource State + Coordinators (RSC). Interconnect providers are able to vote for aggregated + thresholds values from consumers by communicating through their respective + RSCs. + +properties: + compatible: + enum: + - qcom,bcm-voter + + qcom,tcs-wait: + description: | + Optional mask of which TCSs (Triggered Command Sets) wait for completion + upon triggering. If not specified, then the AMC and WAKE sets wait for + completion. The mask bits are available in the QCOM_ICC_TAG_* defines. + + The AMC TCS is triggered immediately when icc_set_bw() is called. The + WAKE/SLEEP TCSs are triggered when the RSC transitions between active and + sleep modes. + + In most cases, it's necessary to wait in both the AMC and WAKE sets to + ensure resources are available before use. If a specific RSC and its use + cases can ensure sufficient delay by other means, then this can be + overridden to reduce latencies. + + $ref: /schemas/types.yaml#/definitions/uint32 + +required: + - compatible + +additionalProperties: false + +examples: + # Example 1: apps bcm_voter on SDM845 SoC should be defined inside &apps_rsc node + # as defined in Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt + - | + + apps_bcm_voter: bcm_voter { + compatible = "qcom,bcm-voter"; + }; + + # Example 2: disp bcm_voter on SDM845 should be defined inside &disp_rsc node + # as defined in Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt + - | + + #include <dt-bindings/interconnect/qcom,icc.h> + + disp_bcm_voter: bcm_voter { + compatible = "qcom,bcm-voter"; + qcom,tcs-wait = <QCOM_ICC_TAG_AMC>; + }; +... diff --git a/Documentation/devicetree/bindings/interconnect/qcom,msm8916.yaml b/Documentation/devicetree/bindings/interconnect/qcom,msm8916.yaml new file mode 100644 index 000000000..e1009ae4e --- /dev/null +++ b/Documentation/devicetree/bindings/interconnect/qcom,msm8916.yaml @@ -0,0 +1,77 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interconnect/qcom,msm8916.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm MSM8916 Network-On-Chip interconnect + +maintainers: + - Georgi Djakov <georgi.djakov@linaro.org> + +description: | + The Qualcomm MSM8916 interconnect providers support adjusting the + bandwidth requirements between the various NoC fabrics. + +properties: + compatible: + enum: + - qcom,msm8916-bimc + - qcom,msm8916-pcnoc + - qcom,msm8916-snoc + + reg: + maxItems: 1 + + '#interconnect-cells': + const: 1 + + clock-names: + items: + - const: bus + - const: bus_a + + clocks: + items: + - description: Bus Clock + - description: Bus A Clock + +required: + - compatible + - reg + - '#interconnect-cells' + - clock-names + - clocks + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/qcom,rpmcc.h> + + bimc: interconnect@400000 { + compatible = "qcom,msm8916-bimc"; + reg = <0x00400000 0x62000>; + #interconnect-cells = <1>; + clock-names = "bus", "bus_a"; + clocks = <&rpmcc RPM_SMD_BIMC_CLK>, + <&rpmcc RPM_SMD_BIMC_A_CLK>; + }; + + pcnoc: interconnect@500000 { + compatible = "qcom,msm8916-pcnoc"; + reg = <0x00500000 0x11000>; + #interconnect-cells = <1>; + clock-names = "bus", "bus_a"; + clocks = <&rpmcc RPM_SMD_PCNOC_CLK>, + <&rpmcc RPM_SMD_PCNOC_A_CLK>; + }; + + snoc: interconnect@580000 { + compatible = "qcom,msm8916-snoc"; + reg = <0x00580000 0x14000>; + #interconnect-cells = <1>; + clock-names = "bus", "bus_a"; + clocks = <&rpmcc RPM_SMD_SNOC_CLK>, + <&rpmcc RPM_SMD_SNOC_A_CLK>; + }; diff --git a/Documentation/devicetree/bindings/interconnect/qcom,msm8974.yaml b/Documentation/devicetree/bindings/interconnect/qcom,msm8974.yaml new file mode 100644 index 000000000..8004c4baf --- /dev/null +++ b/Documentation/devicetree/bindings/interconnect/qcom,msm8974.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interconnect/qcom,msm8974.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm MSM8974 Network-On-Chip Interconnect + +maintainers: + - Brian Masney <masneyb@onstation.org> + +description: | + The Qualcomm MSM8974 interconnect providers support setting system + bandwidth requirements between various network-on-chip fabrics. + +properties: + reg: + maxItems: 1 + + compatible: + enum: + - qcom,msm8974-bimc + - qcom,msm8974-cnoc + - qcom,msm8974-mmssnoc + - qcom,msm8974-ocmemnoc + - qcom,msm8974-pnoc + - qcom,msm8974-snoc + + '#interconnect-cells': + const: 1 + + clock-names: + items: + - const: bus + - const: bus_a + + clocks: + items: + - description: Bus Clock + - description: Bus A Clock + +required: + - compatible + - reg + - '#interconnect-cells' + - clock-names + - clocks + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/qcom,rpmcc.h> + + bimc: interconnect@fc380000 { + reg = <0xfc380000 0x6a000>; + compatible = "qcom,msm8974-bimc"; + #interconnect-cells = <1>; + clock-names = "bus", "bus_a"; + clocks = <&rpmcc RPM_SMD_BIMC_CLK>, + <&rpmcc RPM_SMD_BIMC_A_CLK>; + }; diff --git a/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml b/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml new file mode 100644 index 000000000..d6a95c3cb --- /dev/null +++ b/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interconnect/qcom,osm-l3.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Operating State Manager (OSM) L3 Interconnect Provider + +maintainers: + - Sibi Sankar <sibis@codeaurora.org> + +description: + L3 cache bandwidth requirements on Qualcomm SoCs is serviced by the OSM. + The OSM L3 interconnect provider aggregates the L3 bandwidth requests + from CPU/GPU and relays it to the OSM. + +properties: + compatible: + enum: + - qcom,sc7180-osm-l3 + - qcom,sdm845-osm-l3 + - qcom,sm8150-osm-l3 + - qcom,sm8250-epss-l3 + + reg: + maxItems: 1 + + clocks: + items: + - description: xo clock + - description: alternate clock + + clock-names: + items: + - const: xo + - const: alternate + + '#interconnect-cells': + const: 1 + +required: + - compatible + - reg + - clocks + - clock-names + - '#interconnect-cells' + +additionalProperties: false + +examples: + - | + + #define GPLL0 165 + #define RPMH_CXO_CLK 0 + + osm_l3: interconnect@17d41000 { + compatible = "qcom,sdm845-osm-l3"; + reg = <0x17d41000 0x1400>; + + clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GPLL0>; + clock-names = "xo", "alternate"; + + #interconnect-cells = <1>; + }; diff --git a/Documentation/devicetree/bindings/interconnect/qcom,qcs404.yaml b/Documentation/devicetree/bindings/interconnect/qcom,qcs404.yaml new file mode 100644 index 000000000..3fbb8785f --- /dev/null +++ b/Documentation/devicetree/bindings/interconnect/qcom,qcs404.yaml @@ -0,0 +1,77 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interconnect/qcom,qcs404.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm QCS404 Network-On-Chip interconnect + +maintainers: + - Georgi Djakov <georgi.djakov@linaro.org> + +description: | + The Qualcomm QCS404 interconnect providers support adjusting the + bandwidth requirements between the various NoC fabrics. + +properties: + reg: + maxItems: 1 + + compatible: + enum: + - qcom,qcs404-bimc + - qcom,qcs404-pcnoc + - qcom,qcs404-snoc + + '#interconnect-cells': + const: 1 + + clock-names: + items: + - const: bus + - const: bus_a + + clocks: + items: + - description: Bus Clock + - description: Bus A Clock + +required: + - compatible + - reg + - '#interconnect-cells' + - clock-names + - clocks + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/qcom,rpmcc.h> + + bimc: interconnect@400000 { + reg = <0x00400000 0x80000>; + compatible = "qcom,qcs404-bimc"; + #interconnect-cells = <1>; + clock-names = "bus", "bus_a"; + clocks = <&rpmcc RPM_SMD_BIMC_CLK>, + <&rpmcc RPM_SMD_BIMC_A_CLK>; + }; + + pnoc: interconnect@500000 { + reg = <0x00500000 0x15080>; + compatible = "qcom,qcs404-pcnoc"; + #interconnect-cells = <1>; + clock-names = "bus", "bus_a"; + clocks = <&rpmcc RPM_SMD_PNOC_CLK>, + <&rpmcc RPM_SMD_PNOC_A_CLK>; + }; + + snoc: interconnect@580000 { + reg = <0x00580000 0x23080>; + compatible = "qcom,qcs404-snoc"; + #interconnect-cells = <1>; + clock-names = "bus", "bus_a"; + clocks = <&rpmcc RPM_SMD_SNOC_CLK>, + <&rpmcc RPM_SMD_SNOC_A_CLK>; + }; diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml new file mode 100644 index 000000000..30c2a092d --- /dev/null +++ b/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml @@ -0,0 +1,110 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interconnect/qcom,rpmh.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm RPMh Network-On-Chip Interconnect + +maintainers: + - Georgi Djakov <georgi.djakov@linaro.org> + - Odelu Kukatla <okukatla@codeaurora.org> + +description: | + RPMh interconnect providers support system bandwidth requirements through + RPMh hardware accelerators known as Bus Clock Manager (BCM). The provider is + able to communicate with the BCM through the Resource State Coordinator (RSC) + associated with each execution environment. Provider nodes must point to at + least one RPMh device child node pertaining to their RSC and each provider + can map to multiple RPMh resources. + +properties: + reg: + maxItems: 1 + + compatible: + enum: + - qcom,sc7180-aggre1-noc + - qcom,sc7180-aggre2-noc + - qcom,sc7180-camnoc-virt + - qcom,sc7180-compute-noc + - qcom,sc7180-config-noc + - qcom,sc7180-dc-noc + - qcom,sc7180-gem-noc + - qcom,sc7180-ipa-virt + - qcom,sc7180-mc-virt + - qcom,sc7180-mmss-noc + - qcom,sc7180-npu-noc + - qcom,sc7180-qup-virt + - qcom,sc7180-system-noc + - qcom,sdm845-aggre1-noc + - qcom,sdm845-aggre2-noc + - qcom,sdm845-config-noc + - qcom,sdm845-dc-noc + - qcom,sdm845-gladiator-noc + - qcom,sdm845-mem-noc + - qcom,sdm845-mmss-noc + - qcom,sdm845-system-noc + - qcom,sm8150-aggre1-noc + - qcom,sm8150-aggre2-noc + - qcom,sm8150-camnoc-noc + - qcom,sm8150-compute-noc + - qcom,sm8150-config-noc + - qcom,sm8150-dc-noc + - qcom,sm8150-gem-noc + - qcom,sm8150-ipa-virt + - qcom,sm8150-mc-virt + - qcom,sm8150-mmss-noc + - qcom,sm8150-system-noc + - qcom,sm8250-aggre1-noc + - qcom,sm8250-aggre2-noc + - qcom,sm8250-compute-noc + - qcom,sm8250-config-noc + - qcom,sm8250-dc-noc + - qcom,sm8250-gem-noc + - qcom,sm8250-ipa-virt + - qcom,sm8250-mc-virt + - qcom,sm8250-mmss-noc + - qcom,sm8250-npu-noc + - qcom,sm8250-system-noc + + '#interconnect-cells': + const: 1 + + qcom,bcm-voters: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: | + List of phandles to qcom,bcm-voter nodes that are required by + this interconnect to send RPMh commands. + + qcom,bcm-voter-names: + $ref: /schemas/types.yaml#/definitions/string-array + description: | + Names for each of the qcom,bcm-voters specified. + +required: + - compatible + - reg + - '#interconnect-cells' + - qcom,bcm-voters + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interconnect/qcom,sdm845.h> + + mem_noc: interconnect@1380000 { + compatible = "qcom,sdm845-mem-noc"; + reg = <0x01380000 0x27200>; + #interconnect-cells = <1>; + qcom,bcm-voters = <&apps_bcm_voter>; + }; + + mmss_noc: interconnect@1740000 { + compatible = "qcom,sdm845-mmss-noc"; + reg = <0x01740000 0x1c1000>; + #interconnect-cells = <1>; + qcom,bcm-voter-names = "apps", "disp"; + qcom,bcm-voters = <&apps_bcm_voter>, <&disp_bcm_voter>; + }; |