# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 --- $id: http://devicetree.org/schemas/opp/opp-v2-kryo-cpu.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: Qualcomm Technologies, Inc. NVMEM OPP maintainers: - Ilia Lin allOf: - $ref: opp-v2-base.yaml# description: | In certain Qualcomm Technologies, Inc. SoCs like APQ8096 and MSM8996, the CPU frequencies subset and voltage value of each OPP varies based on the silicon variant in use. Qualcomm Technologies, Inc. Process Voltage Scaling Tables defines the voltage and frequency value based on the speedbin blown in the efuse combination. The qcom-cpufreq-nvmem driver reads the efuse value from the SoC to provide the OPP framework with required information (existing HW bitmap). This is used to determine the voltage and frequency value for each OPP of operating-points-v2 table when it is parsed by the OPP framework. properties: compatible: enum: - operating-points-v2-krait-cpu - operating-points-v2-kryo-cpu nvmem-cells: description: | A phandle pointing to a nvmem-cells node representing the efuse registers that has information about the speedbin that is used to select the right frequency/voltage value pair. opp-shared: true patternProperties: '^opp-?[0-9]+$': type: object additionalProperties: false properties: opp-hz: true opp-microvolt: true opp-peak-kBps: true opp-supported-hw: description: | A single 32 bit bitmap value, representing compatible HW. Bitmap for MSM8996 format: 0: MSM8996, speedbin 0 1: MSM8996, speedbin 1 2: MSM8996, speedbin 2 3: MSM8996, speedbin 3 4-31: unused Bitmap for MSM8996SG format (speedbin shifted of 4 left): 0-3: unused 4: MSM8996SG, speedbin 0 5: MSM8996SG, speedbin 1 6: MSM8996SG, speedbin 2 7-31: unused Bitmap for IPQ806x SoC: 0: IPQ8062 1: IPQ8064/IPQ8066/IPQ8068 2: IPQ8065/IPQ8069 3-31: unused Other platforms use bits directly corresponding to speedbin index. clock-latency-ns: true required-opps: true patternProperties: '^opp-microvolt-speed[0-9]+-pvs[0-9]+$': true required: - opp-hz required: - compatible if: required: - nvmem-cells then: patternProperties: '^opp-?[0-9]+$': required: - opp-supported-hw additionalProperties: false examples: - | / { model = "Qualcomm Technologies, Inc. DB820c"; compatible = "arrow,apq8096-db820c", "qcom,apq8096-sbc", "qcom,apq8096"; #address-cells = <2>; #size-cells = <2>; cpus { #address-cells = <2>; #size-cells = <0>; CPU0: cpu@0 { device_type = "cpu"; compatible = "qcom,kryo"; reg = <0x0 0x0>; enable-method = "psci"; cpu-idle-states = <&CPU_SLEEP_0>; capacity-dmips-mhz = <1024>; clocks = <&kryocc 0>; operating-points-v2 = <&cluster0_opp>; power-domains = <&cpr>; power-domain-names = "cpr"; #cooling-cells = <2>; next-level-cache = <&L2_0>; L2_0: l2-cache { compatible = "cache"; cache-level = <2>; cache-unified; }; }; CPU1: cpu@1 { device_type = "cpu"; compatible = "qcom,kryo"; reg = <0x0 0x1>; enable-method = "psci"; cpu-idle-states = <&CPU_SLEEP_0>; capacity-dmips-mhz = <1024>; clocks = <&kryocc 0>; operating-points-v2 = <&cluster0_opp>; power-domains = <&cpr>; power-domain-names = "cpr"; #cooling-cells = <2>; next-level-cache = <&L2_0>; }; CPU2: cpu@100 { device_type = "cpu"; compatible = "qcom,kryo"; reg = <0x0 0x100>; enable-method = "psci"; cpu-idle-states = <&CPU_SLEEP_0>; capacity-dmips-mhz = <1024>; clocks = <&kryocc 1>; operating-points-v2 = <&cluster1_opp>; power-domains = <&cpr>; power-domain-names = "cpr"; #cooling-cells = <2>; next-level-cache = <&L2_1>; L2_1: l2-cache { compatible = "cache"; cache-level = <2>; cache-unified; }; }; CPU3: cpu@101 { device_type = "cpu"; compatible = "qcom,kryo"; reg = <0x0 0x101>; enable-method = "psci"; cpu-idle-states = <&CPU_SLEEP_0>; capacity-dmips-mhz = <1024>; clocks = <&kryocc 1>; operating-points-v2 = <&cluster1_opp>; power-domains = <&cpr>; power-domain-names = "cpr"; #cooling-cells = <2>; next-level-cache = <&L2_1>; }; cpu-map { cluster0 { core0 { cpu = <&CPU0>; }; core1 { cpu = <&CPU1>; }; }; cluster1 { core0 { cpu = <&CPU2>; }; core1 { cpu = <&CPU3>; }; }; }; }; cluster0_opp: opp-table-0 { compatible = "operating-points-v2-kryo-cpu"; nvmem-cells = <&speedbin_efuse>; opp-shared; opp-307200000 { opp-hz = /bits/ 64 <307200000>; opp-microvolt = <905000 905000 1140000>; opp-supported-hw = <0x7>; clock-latency-ns = <200000>; required-opps = <&cpr_opp1>; }; opp-1401600000 { opp-hz = /bits/ 64 <1401600000>; opp-microvolt = <1140000 905000 1140000>; opp-supported-hw = <0x5>; clock-latency-ns = <200000>; required-opps = <&cpr_opp2>; }; opp-1593600000 { opp-hz = /bits/ 64 <1593600000>; opp-microvolt = <1140000 905000 1140000>; opp-supported-hw = <0x1>; clock-latency-ns = <200000>; required-opps = <&cpr_opp3>; }; }; cluster1_opp: opp-table-1 { compatible = "operating-points-v2-kryo-cpu"; nvmem-cells = <&speedbin_efuse>; opp-shared; opp-307200000 { opp-hz = /bits/ 64 <307200000>; opp-microvolt = <905000 905000 1140000>; opp-supported-hw = <0x7>; clock-latency-ns = <200000>; required-opps = <&cpr_opp1>; }; opp-1804800000 { opp-hz = /bits/ 64 <1804800000>; opp-microvolt = <1140000 905000 1140000>; opp-supported-hw = <0x6>; clock-latency-ns = <200000>; required-opps = <&cpr_opp4>; }; opp-1900800000 { opp-hz = /bits/ 64 <1900800000>; opp-microvolt = <1140000 905000 1140000>; opp-supported-hw = <0x4>; clock-latency-ns = <200000>; required-opps = <&cpr_opp5>; }; opp-2150400000 { opp-hz = /bits/ 64 <2150400000>; opp-microvolt = <1140000 905000 1140000>; opp-supported-hw = <0x1>; clock-latency-ns = <200000>; required-opps = <&cpr_opp6>; }; }; /* Dummy opp table to give example for named opp-microvolt */ opp-table-2 { compatible = "operating-points-v2-krait-cpu"; nvmem-cells = <&speedbin_efuse>; opp-384000000 { opp-hz = /bits/ 64 <384000000>; opp-microvolt-speed0-pvs0 = <1000000 950000 1050000>; opp-microvolt-speed0-pvs1 = <925000 878750 971250>; opp-microvolt-speed0-pvs2 = <875000 831250 918750>; opp-microvolt-speed0-pvs3 = <800000 760000 840000>; opp-supported-hw = <0x7>; clock-latency-ns = <100000>; }; }; smem { compatible = "qcom,smem"; memory-region = <&smem_mem>; hwlocks = <&tcsr_mutex 3>; }; soc { #address-cells = <1>; #size-cells = <1>; qfprom: qfprom@74000 { compatible = "qcom,msm8996-qfprom", "qcom,qfprom"; reg = <0x00074000 0x8ff>; #address-cells = <1>; #size-cells = <1>; speedbin_efuse: speedbin@133 { reg = <0x133 0x1>; bits = <5 3>; }; }; }; };