drivers/cpufreq/Kconfig.arm

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # ARM CPU Frequency scaling drivers
   4 #
   5
   6 config ACPI_CPPC_CPUFREQ
   7         tristate "CPUFreq driver based on the ACPI CPPC spec"
   8         depends on ACPI_PROCESSOR
   9         select ACPI_CPPC_LIB
  10         help
  11           This adds a CPUFreq driver which uses CPPC methods
  12           as described in the ACPIv5.1 spec. CPPC stands for
  13           Collaborative Processor Performance Controls. It
  14           is based on an abstract continuous scale of CPU
  15           performance values which allows the remote power
  16           processor to flexibly optimize for power and
  17           performance. CPPC relies on power management firmware
  18           support for its operation.
  19
  20           If in doubt, say N.
  21
  22 config ARM_ARMADA_37XX_CPUFREQ
  23         tristate "Armada 37xx CPUFreq support"
  24         depends on ARCH_MVEBU && CPUFREQ_DT
  25         help
  26           This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
  27           The Armada 37xx PMU supports 4 frequency and VDD levels.
  28
  29 config ARM_ARMADA_8K_CPUFREQ
  30         tristate "Armada 8K CPUFreq driver"
  31         depends on ARCH_MVEBU && CPUFREQ_DT
  32         help
  33           This enables the CPUFreq driver support for Marvell
  34           Armada8k SOCs.
  35           Armada8K device has the AP806 which supports scaling
  36           to any full integer divider.
  37
  38           If in doubt, say N.
  39
  40 # big LITTLE core layer and glue drivers
  41 config ARM_BIG_LITTLE_CPUFREQ
  42         tristate "Generic ARM big LITTLE CPUfreq driver"
  43         depends on ARM_CPU_TOPOLOGY && HAVE_CLK
  44         select PM_OPP
  45         help
  46           This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
  47
  48 config ARM_SCPI_CPUFREQ
  49         tristate "SCPI based CPUfreq driver"
  50         depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
  51         help
  52           This adds the CPUfreq driver support for ARM platforms using SCPI
  53           protocol for CPU power management.
  54
  55           This driver uses SCPI Message Protocol driver to interact with the
  56           firmware providing the CPU DVFS functionality.
  57
  58 config ARM_VEXPRESS_SPC_CPUFREQ
  59         tristate "Versatile Express SPC based CPUfreq driver"
  60         depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
  61         help
  62           This add the CPUfreq driver support for Versatile Express
  63           big.LITTLE platforms using SPC for power management.
  64
  65 config ARM_BRCMSTB_AVS_CPUFREQ
  66         tristate "Broadcom STB AVS CPUfreq driver"
  67         depends on ARCH_BRCMSTB || COMPILE_TEST
  68         default y
  69         help
  70           Some Broadcom STB SoCs use a co-processor running proprietary firmware
  71           ("AVS") to handle voltage and frequency scaling. This driver provides
  72           a standard CPUfreq interface to to the firmware.
  73
  74           Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
  75
  76 config ARM_HIGHBANK_CPUFREQ
  77         tristate "Calxeda Highbank-based"
  78         depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
  79         default m
  80         help
  81           This adds the CPUFreq driver for Calxeda Highbank SoC
  82           based boards.
  83
  84           If in doubt, say N.
  85
  86 config ARM_IMX6Q_CPUFREQ
  87         tristate "Freescale i.MX6 cpufreq support"
  88         depends on ARCH_MXC
  89         depends on REGULATOR_ANATOP
  90         select PM_OPP
  91         help
  92           This adds cpufreq driver support for Freescale i.MX6 series SoCs.
  93
  94           If in doubt, say N.
  95
  96 config ARM_KIRKWOOD_CPUFREQ
  97         def_bool MACH_KIRKWOOD
  98         help
  99           This adds the CPUFreq driver for Marvell Kirkwood
 100           SoCs.
 101
 102 config ARM_MEDIATEK_CPUFREQ
 103         tristate "CPU Frequency scaling support for MediaTek SoCs"
 104         depends on ARCH_MEDIATEK && REGULATOR
 105         select PM_OPP
 106         help
 107           This adds the CPUFreq driver support for MediaTek SoCs.
 108
 109 config ARM_OMAP2PLUS_CPUFREQ
 110         bool "TI OMAP2+"
 111         depends on ARCH_OMAP2PLUS
 112         default ARCH_OMAP2PLUS
 113
 114 config ARM_QCOM_CPUFREQ_KRYO
 115         tristate "Qualcomm Kryo based CPUFreq"
 116         depends on ARM64
 117         depends on QCOM_QFPROM
 118         depends on QCOM_SMEM
 119         select PM_OPP
 120         help
 121           This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
 122
 123           If in doubt, say N.
 124
 125 config ARM_QCOM_CPUFREQ_HW
 126         tristate "QCOM CPUFreq HW driver"
 127         depends on ARCH_QCOM || COMPILE_TEST
 128         help
 129           Support for the CPUFreq HW driver.
 130           Some QCOM chipsets have a HW engine to offload the steps
 131           necessary for changing the frequency of the CPUs. Firmware loaded
 132           in this engine exposes a programming interface to the OS.
 133           The driver implements the cpufreq interface for this HW engine.
 134           Say Y if you want to support CPUFreq HW.
 135
 136 config ARM_S3C_CPUFREQ
 137         bool
 138         help
 139           Internal configuration node for common cpufreq on Samsung SoC
 140
 141 config ARM_S3C24XX_CPUFREQ
 142         bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
 143         depends on ARCH_S3C24XX
 144         select ARM_S3C_CPUFREQ
 145         help
 146           This enables the CPUfreq driver for the Samsung S3C24XX family
 147           of CPUs.
 148
 149           For details, take a look at <file:Documentation/cpu-freq>.
 150
 151           If in doubt, say N.
 152
 153 config ARM_S3C24XX_CPUFREQ_DEBUG
 154         bool "Debug CPUfreq Samsung driver core"
 155         depends on ARM_S3C24XX_CPUFREQ
 156         help
 157           Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
 158
 159 config ARM_S3C24XX_CPUFREQ_IODEBUG
 160         bool "Debug CPUfreq Samsung driver IO timing"
 161         depends on ARM_S3C24XX_CPUFREQ
 162         help
 163           Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
 164
 165 config ARM_S3C24XX_CPUFREQ_DEBUGFS
 166         bool "Export debugfs for CPUFreq"
 167         depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
 168         help
 169           Export status information via debugfs.
 170
 171 config ARM_S3C2410_CPUFREQ
 172         bool
 173         depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
 174         select S3C2410_CPUFREQ_UTILS
 175         help
 176           CPU Frequency scaling support for S3C2410
 177
 178 config ARM_S3C2412_CPUFREQ
 179         bool
 180         depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
 181         default y
 182         select S3C2412_IOTIMING
 183         help
 184           CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
 185
 186 config ARM_S3C2416_CPUFREQ
 187         bool "S3C2416 CPU Frequency scaling support"
 188         depends on CPU_S3C2416
 189         help
 190           This adds the CPUFreq driver for the Samsung S3C2416 and
 191           S3C2450 SoC. The S3C2416 supports changing the rate of the
 192           armdiv clock source and also entering a so called dynamic
 193           voltage scaling mode in which it is possible to reduce the
 194           core voltage of the CPU.
 195
 196           If in doubt, say N.
 197
 198 config ARM_S3C2416_CPUFREQ_VCORESCALE
 199         bool "Allow voltage scaling for S3C2416 arm core"
 200         depends on ARM_S3C2416_CPUFREQ && REGULATOR
 201         help
 202           Enable CPU voltage scaling when entering the dvs mode.
 203           It uses information gathered through existing hardware and
 204           tests but not documented in any datasheet.
 205
 206           If in doubt, say N.
 207
 208 config ARM_S3C2440_CPUFREQ
 209         bool "S3C2440/S3C2442 CPU Frequency scaling support"
 210         depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
 211         select S3C2410_CPUFREQ_UTILS
 212         default y
 213         help
 214           CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
 215
 216 config ARM_S3C64XX_CPUFREQ
 217         bool "Samsung S3C64XX"
 218         depends on CPU_S3C6410
 219         default y
 220         help
 221           This adds the CPUFreq driver for Samsung S3C6410 SoC.
 222
 223           If in doubt, say N.
 224
 225 config ARM_S5PV210_CPUFREQ
 226         bool "Samsung S5PV210 and S5PC110"
 227         depends on CPU_S5PV210
 228         default y
 229         help
 230           This adds the CPUFreq driver for Samsung S5PV210 and
 231           S5PC110 SoCs.
 232
 233           If in doubt, say N.
 234
 235 config ARM_SA1100_CPUFREQ
 236         bool
 237
 238 config ARM_SA1110_CPUFREQ
 239         bool
 240
 241 config ARM_SCMI_CPUFREQ
 242         tristate "SCMI based CPUfreq driver"
 243         depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
 244         select PM_OPP
 245         help
 246           This adds the CPUfreq driver support for ARM platforms using SCMI
 247           protocol for CPU power management.
 248
 249           This driver uses SCMI Message Protocol driver to interact with the
 250           firmware providing the CPU DVFS functionality.
 251
 252 config ARM_SPEAR_CPUFREQ
 253         bool "SPEAr CPUFreq support"
 254         depends on PLAT_SPEAR
 255         default y
 256         help
 257           This adds the CPUFreq driver support for SPEAr SOCs.
 258
 259 config ARM_STI_CPUFREQ
 260         tristate "STi CPUFreq support"
 261         depends on SOC_STIH407
 262         help
 263           This driver uses the generic OPP framework to match the running
 264           platform with a predefined set of suitable values.  If not provided
 265           we will fall-back so safe-values contained in Device Tree.  Enable
 266           this config option if you wish to add CPUFreq support for STi based
 267           SoCs.
 268
 269 config ARM_TANGO_CPUFREQ
 270         bool
 271         depends on CPUFREQ_DT && ARCH_TANGO
 272         default y
 273
 274 config ARM_TEGRA20_CPUFREQ
 275         tristate "Tegra20 CPUFreq support"
 276         depends on ARCH_TEGRA
 277         default y
 278         help
 279           This adds the CPUFreq driver support for Tegra20 SOCs.
 280
 281 config ARM_TEGRA124_CPUFREQ
 282         bool "Tegra124 CPUFreq support"
 283         depends on ARCH_TEGRA && CPUFREQ_DT
 284         default y
 285         help
 286           This adds the CPUFreq driver support for Tegra124 SOCs.
 287
 288 config ARM_TEGRA186_CPUFREQ
 289         tristate "Tegra186 CPUFreq support"
 290         depends on ARCH_TEGRA && TEGRA_BPMP
 291         help
 292           This adds the CPUFreq driver support for Tegra186 SOCs.
 293
 294 config ARM_TI_CPUFREQ
 295         bool "Texas Instruments CPUFreq support"
 296         depends on ARCH_OMAP2PLUS
 297         help
 298           This driver enables valid OPPs on the running platform based on
 299           values contained within the SoC in use. Enable this in order to
 300           use the cpufreq-dt driver on all Texas Instruments platforms that
 301           provide dt based operating-points-v2 tables with opp-supported-hw
 302           data provided. Required for cpufreq support on AM335x, AM437x,
 303           DRA7x, and AM57x platforms.
 304
 305 config ARM_PXA2xx_CPUFREQ
 306         tristate "Intel PXA2xx CPUfreq driver"
 307         depends on PXA27x || PXA25x
 308         help
 309           This add the CPUFreq driver support for Intel PXA2xx SOCs.
 310
 311           If in doubt, say N.