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_ALLWINNER_SUN50I_CPUFREQ_NVMEM
  23         tristate "Allwinner nvmem based SUN50I CPUFreq driver"
  24         depends on ARCH_SUNXI
  25         depends on NVMEM_SUNXI_SID
  26         select PM_OPP
  27         help
  28           This adds the nvmem based CPUFreq driver for Allwinner
  29           h6 SoC.
  30
  31           To compile this driver as a module, choose M here: the
  32           module will be called sun50i-cpufreq-nvmem.
  33
  34 config ARM_ARMADA_37XX_CPUFREQ
  35         tristate "Armada 37xx CPUFreq support"
  36         depends on ARCH_MVEBU && CPUFREQ_DT
  37         help
  38           This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
  39           The Armada 37xx PMU supports 4 frequency and VDD levels.
  40
  41 config ARM_ARMADA_8K_CPUFREQ
  42         tristate "Armada 8K CPUFreq driver"
  43         depends on ARCH_MVEBU && CPUFREQ_DT
  44         help
  45           This enables the CPUFreq driver support for Marvell
  46           Armada8k SOCs.
  47           Armada8K device has the AP806 which supports scaling
  48           to any full integer divider.
  49
  50           If in doubt, say N.
  51
  52 config ARM_SCPI_CPUFREQ
  53         tristate "SCPI based CPUfreq driver"
  54         depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
  55         help
  56           This adds the CPUfreq driver support for ARM platforms using SCPI
  57           protocol for CPU power management.
  58
  59           This driver uses SCPI Message Protocol driver to interact with the
  60           firmware providing the CPU DVFS functionality.
  61
  62 config ARM_VEXPRESS_SPC_CPUFREQ
  63         tristate "Versatile Express SPC based CPUfreq driver"
  64         depends on ARM_CPU_TOPOLOGY && HAVE_CLK
  65         depends on ARCH_VEXPRESS_SPC
  66         select PM_OPP
  67         help
  68           This add the CPUfreq driver support for Versatile Express
  69           big.LITTLE platforms using SPC for power management.
  70
  71 config ARM_BRCMSTB_AVS_CPUFREQ
  72         tristate "Broadcom STB AVS CPUfreq driver"
  73         depends on ARCH_BRCMSTB || COMPILE_TEST
  74         default y
  75         help
  76           Some Broadcom STB SoCs use a co-processor running proprietary firmware
  77           ("AVS") to handle voltage and frequency scaling. This driver provides
  78           a standard CPUfreq interface to to the firmware.
  79
  80           Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
  81
  82 config ARM_HIGHBANK_CPUFREQ
  83         tristate "Calxeda Highbank-based"
  84         depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
  85         default m
  86         help
  87           This adds the CPUFreq driver for Calxeda Highbank SoC
  88           based boards.
  89
  90           If in doubt, say N.
  91
  92 config ARM_IMX6Q_CPUFREQ
  93         tristate "Freescale i.MX6 cpufreq support"
  94         depends on ARCH_MXC
  95         depends on REGULATOR_ANATOP
  96         select PM_OPP
  97         help
  98           This adds cpufreq driver support for Freescale i.MX6 series SoCs.
  99
 100           If in doubt, say N.
 101
 102 config ARM_IMX_CPUFREQ_DT
 103         tristate "Freescale i.MX8M cpufreq support"
 104         depends on ARCH_MXC && CPUFREQ_DT
 105         help
 106           This adds cpufreq driver support for Freescale i.MX8M series SoCs,
 107           based on cpufreq-dt.
 108
 109           If in doubt, say N.
 110
 111 config ARM_KIRKWOOD_CPUFREQ
 112         def_bool MACH_KIRKWOOD
 113         help
 114           This adds the CPUFreq driver for Marvell Kirkwood
 115           SoCs.
 116
 117 config ARM_MEDIATEK_CPUFREQ
 118         tristate "CPU Frequency scaling support for MediaTek SoCs"
 119         depends on ARCH_MEDIATEK && REGULATOR
 120         select PM_OPP
 121         help
 122           This adds the CPUFreq driver support for MediaTek SoCs.
 123
 124 config ARM_OMAP2PLUS_CPUFREQ
 125         bool "TI OMAP2+"
 126         depends on ARCH_OMAP2PLUS
 127         default ARCH_OMAP2PLUS
 128
 129 config ARM_QCOM_CPUFREQ_NVMEM
 130         tristate "Qualcomm nvmem based CPUFreq"
 131         depends on ARM64
 132         depends on QCOM_QFPROM
 133         depends on QCOM_SMEM
 134         select PM_OPP
 135         help
 136           This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
 137
 138           If in doubt, say N.
 139
 140 config ARM_QCOM_CPUFREQ_HW
 141         tristate "QCOM CPUFreq HW driver"
 142         depends on ARCH_QCOM || COMPILE_TEST
 143         help
 144           Support for the CPUFreq HW driver.
 145           Some QCOM chipsets have a HW engine to offload the steps
 146           necessary for changing the frequency of the CPUs. Firmware loaded
 147           in this engine exposes a programming interface to the OS.
 148           The driver implements the cpufreq interface for this HW engine.
 149           Say Y if you want to support CPUFreq HW.
 150
 151 config ARM_RASPBERRYPI_CPUFREQ
 152         tristate "Raspberry Pi cpufreq support"
 153         depends on CLK_RASPBERRYPI || COMPILE_TEST
 154         help
 155           This adds the CPUFreq driver for Raspberry Pi
 156
 157           If in doubt, say N.
 158
 159 config ARM_S3C_CPUFREQ
 160         bool
 161         help
 162           Internal configuration node for common cpufreq on Samsung SoC
 163
 164 config ARM_S3C24XX_CPUFREQ
 165         bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
 166         depends on ARCH_S3C24XX
 167         select ARM_S3C_CPUFREQ
 168         help
 169           This enables the CPUfreq driver for the Samsung S3C24XX family
 170           of CPUs.
 171
 172           For details, take a look at <file:Documentation/cpu-freq>.
 173
 174           If in doubt, say N.
 175
 176 config ARM_S3C24XX_CPUFREQ_DEBUG
 177         bool "Debug CPUfreq Samsung driver core"
 178         depends on ARM_S3C24XX_CPUFREQ
 179         help
 180           Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
 181
 182 config ARM_S3C24XX_CPUFREQ_IODEBUG
 183         bool "Debug CPUfreq Samsung driver IO timing"
 184         depends on ARM_S3C24XX_CPUFREQ
 185         help
 186           Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
 187
 188 config ARM_S3C24XX_CPUFREQ_DEBUGFS
 189         bool "Export debugfs for CPUFreq"
 190         depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
 191         help
 192           Export status information via debugfs.
 193
 194 config ARM_S3C2410_CPUFREQ
 195         bool
 196         depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
 197         select S3C2410_CPUFREQ_UTILS
 198         help
 199           CPU Frequency scaling support for S3C2410
 200
 201 config ARM_S3C2412_CPUFREQ
 202         bool
 203         depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
 204         default y
 205         select S3C2412_IOTIMING
 206         help
 207           CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
 208
 209 config ARM_S3C2416_CPUFREQ
 210         bool "S3C2416 CPU Frequency scaling support"
 211         depends on CPU_S3C2416
 212         help
 213           This adds the CPUFreq driver for the Samsung S3C2416 and
 214           S3C2450 SoC. The S3C2416 supports changing the rate of the
 215           armdiv clock source and also entering a so called dynamic
 216           voltage scaling mode in which it is possible to reduce the
 217           core voltage of the CPU.
 218
 219           If in doubt, say N.
 220
 221 config ARM_S3C2416_CPUFREQ_VCORESCALE
 222         bool "Allow voltage scaling for S3C2416 arm core"
 223         depends on ARM_S3C2416_CPUFREQ && REGULATOR
 224         help
 225           Enable CPU voltage scaling when entering the dvs mode.
 226           It uses information gathered through existing hardware and
 227           tests but not documented in any datasheet.
 228
 229           If in doubt, say N.
 230
 231 config ARM_S3C2440_CPUFREQ
 232         bool "S3C2440/S3C2442 CPU Frequency scaling support"
 233         depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
 234         select S3C2410_CPUFREQ_UTILS
 235         default y
 236         help
 237           CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
 238
 239 config ARM_S3C64XX_CPUFREQ
 240         bool "Samsung S3C64XX"
 241         depends on CPU_S3C6410
 242         default y
 243         help
 244           This adds the CPUFreq driver for Samsung S3C6410 SoC.
 245
 246           If in doubt, say N.
 247
 248 config ARM_S5PV210_CPUFREQ
 249         bool "Samsung S5PV210 and S5PC110"
 250         depends on CPU_S5PV210
 251         default y
 252         help
 253           This adds the CPUFreq driver for Samsung S5PV210 and
 254           S5PC110 SoCs.
 255
 256           If in doubt, say N.
 257
 258 config ARM_SA1100_CPUFREQ
 259         bool
 260
 261 config ARM_SA1110_CPUFREQ
 262         bool
 263
 264 config ARM_SCMI_CPUFREQ
 265         tristate "SCMI based CPUfreq driver"
 266         depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
 267         select PM_OPP
 268         help
 269           This adds the CPUfreq driver support for ARM platforms using SCMI
 270           protocol for CPU power management.
 271
 272           This driver uses SCMI Message Protocol driver to interact with the
 273           firmware providing the CPU DVFS functionality.
 274
 275 config ARM_SPEAR_CPUFREQ
 276         bool "SPEAr CPUFreq support"
 277         depends on PLAT_SPEAR
 278         default y
 279         help
 280           This adds the CPUFreq driver support for SPEAr SOCs.
 281
 282 config ARM_STI_CPUFREQ
 283         tristate "STi CPUFreq support"
 284         depends on SOC_STIH407
 285         help
 286           This driver uses the generic OPP framework to match the running
 287           platform with a predefined set of suitable values.  If not provided
 288           we will fall-back so safe-values contained in Device Tree.  Enable
 289           this config option if you wish to add CPUFreq support for STi based
 290           SoCs.
 291
 292 config ARM_TANGO_CPUFREQ
 293         bool
 294         depends on CPUFREQ_DT && ARCH_TANGO
 295         default y
 296
 297 config ARM_TEGRA20_CPUFREQ
 298         tristate "Tegra20 CPUFreq support"
 299         depends on ARCH_TEGRA
 300         default y
 301         help
 302           This adds the CPUFreq driver support for Tegra20 SOCs.
 303
 304 config ARM_TEGRA124_CPUFREQ
 305         bool "Tegra124 CPUFreq support"
 306         depends on ARCH_TEGRA && CPUFREQ_DT
 307         default y
 308         help
 309           This adds the CPUFreq driver support for Tegra124 SOCs.
 310
 311 config ARM_TEGRA186_CPUFREQ
 312         tristate "Tegra186 CPUFreq support"
 313         depends on ARCH_TEGRA && TEGRA_BPMP
 314         help
 315           This adds the CPUFreq driver support for Tegra186 SOCs.
 316
 317 config ARM_TI_CPUFREQ
 318         bool "Texas Instruments CPUFreq support"
 319         depends on ARCH_OMAP2PLUS
 320         help
 321           This driver enables valid OPPs on the running platform based on
 322           values contained within the SoC in use. Enable this in order to
 323           use the cpufreq-dt driver on all Texas Instruments platforms that
 324           provide dt based operating-points-v2 tables with opp-supported-hw
 325           data provided. Required for cpufreq support on AM335x, AM437x,
 326           DRA7x, and AM57x platforms.
 327
 328 config ARM_PXA2xx_CPUFREQ
 329         tristate "Intel PXA2xx CPUfreq driver"
 330         depends on PXA27x || PXA25x
 331         help
 332           This add the CPUFreq driver support for Intel PXA2xx SOCs.
 333
 334           If in doubt, say N.