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337 lines
9.4 KiB
337 lines
9.4 KiB
# SPDX-License-Identifier: GPL-2.0-only |
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# |
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# ARM CPU Frequency scaling drivers |
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# |
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config ACPI_CPPC_CPUFREQ |
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tristate "CPUFreq driver based on the ACPI CPPC spec" |
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depends on ACPI_PROCESSOR |
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select ACPI_CPPC_LIB |
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help |
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This adds a CPUFreq driver which uses CPPC methods |
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as described in the ACPIv5.1 spec. CPPC stands for |
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Collaborative Processor Performance Controls. It |
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is based on an abstract continuous scale of CPU |
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performance values which allows the remote power |
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processor to flexibly optimize for power and |
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performance. CPPC relies on power management firmware |
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support for its operation. |
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If in doubt, say N. |
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config ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM |
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tristate "Allwinner nvmem based SUN50I CPUFreq driver" |
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depends on ARCH_SUNXI |
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depends on NVMEM_SUNXI_SID |
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select PM_OPP |
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help |
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This adds the nvmem based CPUFreq driver for Allwinner |
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h6 SoC. |
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To compile this driver as a module, choose M here: the |
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module will be called sun50i-cpufreq-nvmem. |
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config ARM_ARMADA_37XX_CPUFREQ |
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tristate "Armada 37xx CPUFreq support" |
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depends on ARCH_MVEBU && CPUFREQ_DT |
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help |
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This adds the CPUFreq driver support for Marvell Armada 37xx SoCs. |
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The Armada 37xx PMU supports 4 frequency and VDD levels. |
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config ARM_ARMADA_8K_CPUFREQ |
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tristate "Armada 8K CPUFreq driver" |
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depends on ARCH_MVEBU && CPUFREQ_DT |
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select ARMADA_AP_CPU_CLK |
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help |
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This enables the CPUFreq driver support for Marvell |
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Armada8k SOCs. |
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Armada8K device has the AP806 which supports scaling |
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to any full integer divider. |
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If in doubt, say N. |
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config ARM_SCPI_CPUFREQ |
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tristate "SCPI based CPUfreq driver" |
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depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI |
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help |
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This adds the CPUfreq driver support for ARM platforms using SCPI |
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protocol for CPU power management. |
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This driver uses SCPI Message Protocol driver to interact with the |
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firmware providing the CPU DVFS functionality. |
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config ARM_VEXPRESS_SPC_CPUFREQ |
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tristate "Versatile Express SPC based CPUfreq driver" |
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depends on ARM_CPU_TOPOLOGY && HAVE_CLK |
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depends on ARCH_VEXPRESS_SPC |
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select PM_OPP |
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help |
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This add the CPUfreq driver support for Versatile Express |
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big.LITTLE platforms using SPC for power management. |
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config ARM_BRCMSTB_AVS_CPUFREQ |
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tristate "Broadcom STB AVS CPUfreq driver" |
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depends on ARCH_BRCMSTB || COMPILE_TEST |
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default y |
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help |
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Some Broadcom STB SoCs use a co-processor running proprietary firmware |
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("AVS") to handle voltage and frequency scaling. This driver provides |
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a standard CPUfreq interface to to the firmware. |
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Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS. |
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config ARM_HIGHBANK_CPUFREQ |
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tristate "Calxeda Highbank-based" |
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depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR |
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default m |
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help |
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This adds the CPUFreq driver for Calxeda Highbank SoC |
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based boards. |
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If in doubt, say N. |
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config ARM_IMX6Q_CPUFREQ |
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tristate "Freescale i.MX6 cpufreq support" |
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depends on ARCH_MXC |
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depends on REGULATOR_ANATOP |
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depends on NVMEM_IMX_OCOTP || COMPILE_TEST |
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select PM_OPP |
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help |
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This adds cpufreq driver support for Freescale i.MX6 series SoCs. |
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If in doubt, say N. |
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config ARM_IMX_CPUFREQ_DT |
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tristate "Freescale i.MX8M cpufreq support" |
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depends on ARCH_MXC && CPUFREQ_DT |
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help |
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This adds cpufreq driver support for Freescale i.MX8M series SoCs, |
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based on cpufreq-dt. |
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If in doubt, say N. |
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config ARM_KIRKWOOD_CPUFREQ |
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def_bool MACH_KIRKWOOD |
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help |
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This adds the CPUFreq driver for Marvell Kirkwood |
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SoCs. |
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config ARM_MEDIATEK_CPUFREQ |
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tristate "CPU Frequency scaling support for MediaTek SoCs" |
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depends on ARCH_MEDIATEK && REGULATOR |
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select PM_OPP |
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help |
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This adds the CPUFreq driver support for MediaTek SoCs. |
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config ARM_OMAP2PLUS_CPUFREQ |
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bool "TI OMAP2+" |
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depends on ARCH_OMAP2PLUS |
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default ARCH_OMAP2PLUS |
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config ARM_QCOM_CPUFREQ_NVMEM |
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tristate "Qualcomm nvmem based CPUFreq" |
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depends on ARCH_QCOM |
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depends on QCOM_QFPROM |
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depends on QCOM_SMEM |
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select PM_OPP |
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help |
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This adds the CPUFreq driver for Qualcomm Kryo SoC based boards. |
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If in doubt, say N. |
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config ARM_QCOM_CPUFREQ_HW |
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tristate "QCOM CPUFreq HW driver" |
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depends on ARCH_QCOM || COMPILE_TEST |
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help |
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Support for the CPUFreq HW driver. |
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Some QCOM chipsets have a HW engine to offload the steps |
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necessary for changing the frequency of the CPUs. Firmware loaded |
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in this engine exposes a programming interface to the OS. |
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The driver implements the cpufreq interface for this HW engine. |
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Say Y if you want to support CPUFreq HW. |
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config ARM_RASPBERRYPI_CPUFREQ |
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tristate "Raspberry Pi cpufreq support" |
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depends on CLK_RASPBERRYPI || COMPILE_TEST |
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help |
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This adds the CPUFreq driver for Raspberry Pi |
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If in doubt, say N. |
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config ARM_S3C_CPUFREQ |
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bool |
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help |
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Internal configuration node for common cpufreq on Samsung SoC |
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config ARM_S3C24XX_CPUFREQ |
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bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)" |
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depends on ARCH_S3C24XX |
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select ARM_S3C_CPUFREQ |
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help |
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This enables the CPUfreq driver for the Samsung S3C24XX family |
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of CPUs. |
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For details, take a look at <file:Documentation/cpu-freq>. |
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If in doubt, say N. |
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config ARM_S3C24XX_CPUFREQ_DEBUG |
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bool "Debug CPUfreq Samsung driver core" |
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depends on ARM_S3C24XX_CPUFREQ |
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help |
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Enable s3c_freq_dbg for the Samsung S3C CPUfreq core |
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config ARM_S3C24XX_CPUFREQ_IODEBUG |
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bool "Debug CPUfreq Samsung driver IO timing" |
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depends on ARM_S3C24XX_CPUFREQ |
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help |
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Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core |
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config ARM_S3C24XX_CPUFREQ_DEBUGFS |
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bool "Export debugfs for CPUFreq" |
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depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS |
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help |
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Export status information via debugfs. |
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config ARM_S3C2410_CPUFREQ |
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bool |
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depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410 |
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help |
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CPU Frequency scaling support for S3C2410 |
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config ARM_S3C2412_CPUFREQ |
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bool |
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depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412 |
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default y |
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select S3C2412_IOTIMING |
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help |
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CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs. |
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config ARM_S3C2416_CPUFREQ |
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bool "S3C2416 CPU Frequency scaling support" |
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depends on CPU_S3C2416 |
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help |
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This adds the CPUFreq driver for the Samsung S3C2416 and |
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S3C2450 SoC. The S3C2416 supports changing the rate of the |
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armdiv clock source and also entering a so called dynamic |
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voltage scaling mode in which it is possible to reduce the |
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core voltage of the CPU. |
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If in doubt, say N. |
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config ARM_S3C2416_CPUFREQ_VCORESCALE |
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bool "Allow voltage scaling for S3C2416 arm core" |
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depends on ARM_S3C2416_CPUFREQ && REGULATOR |
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help |
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Enable CPU voltage scaling when entering the dvs mode. |
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It uses information gathered through existing hardware and |
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tests but not documented in any datasheet. |
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If in doubt, say N. |
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config ARM_S3C2440_CPUFREQ |
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bool "S3C2440/S3C2442 CPU Frequency scaling support" |
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depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442) |
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default y |
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help |
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CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs. |
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config ARM_S3C64XX_CPUFREQ |
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bool "Samsung S3C64XX" |
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depends on CPU_S3C6410 |
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default y |
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help |
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This adds the CPUFreq driver for Samsung S3C6410 SoC. |
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If in doubt, say N. |
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config ARM_S5PV210_CPUFREQ |
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bool "Samsung S5PV210 and S5PC110" |
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depends on CPU_S5PV210 |
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default y |
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help |
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This adds the CPUFreq driver for Samsung S5PV210 and |
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S5PC110 SoCs. |
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If in doubt, say N. |
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config ARM_SA1100_CPUFREQ |
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bool |
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config ARM_SA1110_CPUFREQ |
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bool |
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config ARM_SCMI_CPUFREQ |
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tristate "SCMI based CPUfreq driver" |
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depends on ARM_SCMI_PROTOCOL || COMPILE_TEST |
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select PM_OPP |
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help |
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This adds the CPUfreq driver support for ARM platforms using SCMI |
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protocol for CPU power management. |
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This driver uses SCMI Message Protocol driver to interact with the |
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firmware providing the CPU DVFS functionality. |
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config ARM_SPEAR_CPUFREQ |
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bool "SPEAr CPUFreq support" |
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depends on PLAT_SPEAR |
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default y |
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help |
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This adds the CPUFreq driver support for SPEAr SOCs. |
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config ARM_STI_CPUFREQ |
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tristate "STi CPUFreq support" |
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depends on CPUFREQ_DT && SOC_STIH407 |
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help |
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This driver uses the generic OPP framework to match the running |
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platform with a predefined set of suitable values. If not provided |
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we will fall-back so safe-values contained in Device Tree. Enable |
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this config option if you wish to add CPUFreq support for STi based |
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SoCs. |
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config ARM_TEGRA20_CPUFREQ |
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tristate "Tegra20/30 CPUFreq support" |
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depends on ARCH_TEGRA && CPUFREQ_DT |
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default y |
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help |
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This adds the CPUFreq driver support for Tegra20/30 SOCs. |
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config ARM_TEGRA124_CPUFREQ |
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bool "Tegra124 CPUFreq support" |
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depends on ARCH_TEGRA && CPUFREQ_DT |
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default y |
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help |
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This adds the CPUFreq driver support for Tegra124 SOCs. |
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config ARM_TEGRA186_CPUFREQ |
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tristate "Tegra186 CPUFreq support" |
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depends on ARCH_TEGRA && TEGRA_BPMP |
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help |
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This adds the CPUFreq driver support for Tegra186 SOCs. |
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config ARM_TEGRA194_CPUFREQ |
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tristate "Tegra194 CPUFreq support" |
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depends on ARCH_TEGRA_194_SOC && TEGRA_BPMP |
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default y |
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help |
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This adds CPU frequency driver support for Tegra194 SOCs. |
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config ARM_TI_CPUFREQ |
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bool "Texas Instruments CPUFreq support" |
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depends on ARCH_OMAP2PLUS |
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default ARCH_OMAP2PLUS |
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help |
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This driver enables valid OPPs on the running platform based on |
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values contained within the SoC in use. Enable this in order to |
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use the cpufreq-dt driver on all Texas Instruments platforms that |
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provide dt based operating-points-v2 tables with opp-supported-hw |
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data provided. Required for cpufreq support on AM335x, AM437x, |
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DRA7x, and AM57x platforms. |
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config ARM_PXA2xx_CPUFREQ |
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tristate "Intel PXA2xx CPUfreq driver" |
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depends on PXA27x || PXA25x |
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help |
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This add the CPUFreq driver support for Intel PXA2xx SOCs. |
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If in doubt, say N.
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