1a7ee53e1SKrzysztof Kozlowski# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 2a7ee53e1SKrzysztof Kozlowski%YAML 1.2 3a7ee53e1SKrzysztof Kozlowski--- 4a7ee53e1SKrzysztof Kozlowski$id: http://devicetree.org/schemas/interconnect/qcom,msm8998-bwmon.yaml# 5a7ee53e1SKrzysztof Kozlowski$schema: http://devicetree.org/meta-schemas/core.yaml# 6a7ee53e1SKrzysztof Kozlowski 7a7ee53e1SKrzysztof Kozlowskititle: Qualcomm Interconnect Bandwidth Monitor 8a7ee53e1SKrzysztof Kozlowski 9a7ee53e1SKrzysztof Kozlowskimaintainers: 10a7ee53e1SKrzysztof Kozlowski - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> 11a7ee53e1SKrzysztof Kozlowski 12a7ee53e1SKrzysztof Kozlowskidescription: | 13a7ee53e1SKrzysztof Kozlowski Bandwidth Monitor measures current throughput on buses between various NoC 14a7ee53e1SKrzysztof Kozlowski fabrics and provides information when it crosses configured thresholds. 15a7ee53e1SKrzysztof Kozlowski 16a7ee53e1SKrzysztof Kozlowski Certain SoCs might have more than one Bandwidth Monitors, for example on SDM845:: 17a7ee53e1SKrzysztof Kozlowski - Measuring the bandwidth between CPUs and Last Level Cache Controller - 18a7ee53e1SKrzysztof Kozlowski called just BWMON, 19a7ee53e1SKrzysztof Kozlowski - Measuring the bandwidth between Last Level Cache Controller and memory 20a7ee53e1SKrzysztof Kozlowski (DDR) - called LLCC BWMON. 21a7ee53e1SKrzysztof Kozlowski 22a7ee53e1SKrzysztof Kozlowskiproperties: 23a7ee53e1SKrzysztof Kozlowski compatible: 24a7ee53e1SKrzysztof Kozlowski oneOf: 25a7ee53e1SKrzysztof Kozlowski - items: 26a7ee53e1SKrzysztof Kozlowski - enum: 27*1498a5a7SKrzysztof Kozlowski - qcom,sc7280-cpu-bwmon 28a7ee53e1SKrzysztof Kozlowski - qcom,sdm845-bwmon 29a7ee53e1SKrzysztof Kozlowski - const: qcom,msm8998-bwmon 30a7ee53e1SKrzysztof Kozlowski - const: qcom,msm8998-bwmon # BWMON v4 31b7c84ae7SRajendra Nayak - const: qcom,sc7280-llcc-bwmon # BWMON v5 323098fcb1SKrzysztof Kozlowski - const: qcom,sdm845-llcc-bwmon # BWMON v5 33a7ee53e1SKrzysztof Kozlowski 34a7ee53e1SKrzysztof Kozlowski interconnects: 35a7ee53e1SKrzysztof Kozlowski maxItems: 1 36a7ee53e1SKrzysztof Kozlowski 37a7ee53e1SKrzysztof Kozlowski interrupts: 38a7ee53e1SKrzysztof Kozlowski maxItems: 1 39a7ee53e1SKrzysztof Kozlowski 40a7ee53e1SKrzysztof Kozlowski operating-points-v2: true 41c8973737SKrzysztof Kozlowski opp-table: 42c8973737SKrzysztof Kozlowski type: object 43a7ee53e1SKrzysztof Kozlowski 44a7ee53e1SKrzysztof Kozlowski reg: 45a7ee53e1SKrzysztof Kozlowski # BWMON v4 (currently described) and BWMON v5 use one register address 46a7ee53e1SKrzysztof Kozlowski # space. BWMON v2 uses two register spaces - not yet described. 47a7ee53e1SKrzysztof Kozlowski maxItems: 1 48a7ee53e1SKrzysztof Kozlowski 49a7ee53e1SKrzysztof Kozlowskirequired: 50a7ee53e1SKrzysztof Kozlowski - compatible 51a7ee53e1SKrzysztof Kozlowski - interconnects 52a7ee53e1SKrzysztof Kozlowski - interrupts 53a7ee53e1SKrzysztof Kozlowski - operating-points-v2 54a7ee53e1SKrzysztof Kozlowski - opp-table 55a7ee53e1SKrzysztof Kozlowski - reg 56a7ee53e1SKrzysztof Kozlowski 57a7ee53e1SKrzysztof KozlowskiadditionalProperties: false 58a7ee53e1SKrzysztof Kozlowski 59a7ee53e1SKrzysztof Kozlowskiexamples: 60a7ee53e1SKrzysztof Kozlowski - | 61a7ee53e1SKrzysztof Kozlowski #include <dt-bindings/interconnect/qcom,sdm845.h> 62a7ee53e1SKrzysztof Kozlowski #include <dt-bindings/interrupt-controller/arm-gic.h> 63a7ee53e1SKrzysztof Kozlowski 64a7ee53e1SKrzysztof Kozlowski pmu@1436400 { 65a7ee53e1SKrzysztof Kozlowski compatible = "qcom,sdm845-bwmon", "qcom,msm8998-bwmon"; 66a7ee53e1SKrzysztof Kozlowski reg = <0x01436400 0x600>; 67a7ee53e1SKrzysztof Kozlowski interrupts = <GIC_SPI 581 IRQ_TYPE_LEVEL_HIGH>; 68a7ee53e1SKrzysztof Kozlowski interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_LLCC 3>; 69a7ee53e1SKrzysztof Kozlowski 70a7ee53e1SKrzysztof Kozlowski operating-points-v2 = <&cpu_bwmon_opp_table>; 71a7ee53e1SKrzysztof Kozlowski 72a7ee53e1SKrzysztof Kozlowski cpu_bwmon_opp_table: opp-table { 73a7ee53e1SKrzysztof Kozlowski compatible = "operating-points-v2"; 74a7ee53e1SKrzysztof Kozlowski opp-0 { 75a7ee53e1SKrzysztof Kozlowski opp-peak-kBps = <4800000>; 76a7ee53e1SKrzysztof Kozlowski }; 77a7ee53e1SKrzysztof Kozlowski opp-1 { 78a7ee53e1SKrzysztof Kozlowski opp-peak-kBps = <9216000>; 79a7ee53e1SKrzysztof Kozlowski }; 80a7ee53e1SKrzysztof Kozlowski opp-2 { 81a7ee53e1SKrzysztof Kozlowski opp-peak-kBps = <15052800>; 82a7ee53e1SKrzysztof Kozlowski }; 83a7ee53e1SKrzysztof Kozlowski opp-3 { 84a7ee53e1SKrzysztof Kozlowski opp-peak-kBps = <20889600>; 85a7ee53e1SKrzysztof Kozlowski }; 86a7ee53e1SKrzysztof Kozlowski opp-4 { 87a7ee53e1SKrzysztof Kozlowski opp-peak-kBps = <25497600>; 88a7ee53e1SKrzysztof Kozlowski }; 89a7ee53e1SKrzysztof Kozlowski }; 90a7ee53e1SKrzysztof Kozlowski }; 91