drivers/cpufreq/Kconfig.arm

   1 #
   2 # ARM CPU Frequency scaling drivers
   3 #
   4
   5 # big LITTLE core layer and glue drivers
   6 config ARM_BIG_LITTLE_CPUFREQ
   7         tristate "Generic ARM big LITTLE CPUfreq driver"
   8         depends on (ARM_CPU_TOPOLOGY || ARM64) && HAVE_CLK
   9         # if CPU_THERMAL is on and THERMAL=m, ARM_BIT_LITTLE_CPUFREQ cannot be =y
  10         depends on !CPU_THERMAL || THERMAL
  11         select PM_OPP
  12         help
  13           This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
  14
  15 config ARM_BRCMSTB_AVS_CPUFREQ
  16         tristate "Broadcom STB AVS CPUfreq driver"
  17         depends on ARCH_BRCMSTB || COMPILE_TEST
  18         default y
  19         help
  20           Some Broadcom STB SoCs use a co-processor running proprietary firmware
  21           ("AVS") to handle voltage and frequency scaling. This driver provides
  22           a standard CPUfreq interface to to the firmware.
  23
  24           Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
  25
  26 config ARM_BRCMSTB_AVS_CPUFREQ_DEBUG
  27         bool "Broadcom STB AVS CPUfreq driver sysfs debug capability"
  28         depends on ARM_BRCMSTB_AVS_CPUFREQ
  29         help
  30           Enabling this option turns on debug support via sysfs under
  31           /sys/kernel/debug/brcmstb-avs-cpufreq. It is possible to read all and
  32           write some AVS mailbox registers through sysfs entries.
  33
  34           If in doubt, say N.
  35
  36 config ARM_DT_BL_CPUFREQ
  37         tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
  38         depends on ARM_BIG_LITTLE_CPUFREQ && OF
  39         help
  40           This enables probing via DT for Generic CPUfreq driver for ARM
  41           big.LITTLE platform. This gets frequency tables from DT.
  42
  43 config ARM_VEXPRESS_SPC_CPUFREQ
  44         tristate "Versatile Express SPC based CPUfreq driver"
  45         depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
  46         help
  47           This add the CPUfreq driver support for Versatile Express
  48           big.LITTLE platforms using SPC for power management.
  49
  50 config ARM_EXYNOS5440_CPUFREQ
  51         tristate "SAMSUNG EXYNOS5440"
  52         depends on SOC_EXYNOS5440
  53         depends on HAVE_CLK && OF
  54         select PM_OPP
  55         default y
  56         help
  57           This adds the CPUFreq driver for Samsung EXYNOS5440
  58           SoC. The nature of exynos5440 clock controller is
  59           different than previous exynos controllers so not using
  60           the common exynos framework.
  61
  62           If in doubt, say N.
  63
  64 config ARM_HIGHBANK_CPUFREQ
  65         tristate "Calxeda Highbank-based"
  66         depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
  67         default m
  68         help
  69           This adds the CPUFreq driver for Calxeda Highbank SoC
  70           based boards.
  71
  72           If in doubt, say N.
  73
  74 config ARM_IMX6Q_CPUFREQ
  75         tristate "Freescale i.MX6 cpufreq support"
  76         depends on ARCH_MXC
  77         depends on REGULATOR_ANATOP
  78         select PM_OPP
  79         help
  80           This adds cpufreq driver support for Freescale i.MX6 series SoCs.
  81
  82           If in doubt, say N.
  83
  84 config ARM_KIRKWOOD_CPUFREQ
  85         def_bool MACH_KIRKWOOD
  86         help
  87           This adds the CPUFreq driver for Marvell Kirkwood
  88           SoCs.
  89
  90 config ARM_MEDIATEK_CPUFREQ
  91         tristate "CPU Frequency scaling support for MediaTek SoCs"
  92         depends on ARCH_MEDIATEK && REGULATOR
  93         depends on !CPU_THERMAL || THERMAL
  94         select PM_OPP
  95         help
  96           This adds the CPUFreq driver support for MediaTek SoCs.
  97
  98 config ARM_OMAP2PLUS_CPUFREQ
  99         bool "TI OMAP2+"
 100         depends on ARCH_OMAP2PLUS
 101         default ARCH_OMAP2PLUS
 102
 103 config ARM_S3C_CPUFREQ
 104         bool
 105         help
 106           Internal configuration node for common cpufreq on Samsung SoC
 107
 108 config ARM_S3C24XX_CPUFREQ
 109         bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
 110         depends on ARCH_S3C24XX
 111         select ARM_S3C_CPUFREQ
 112         help
 113           This enables the CPUfreq driver for the Samsung S3C24XX family
 114           of CPUs.
 115
 116           For details, take a look at <file:Documentation/cpu-freq>.
 117
 118           If in doubt, say N.
 119
 120 config ARM_S3C24XX_CPUFREQ_DEBUG
 121         bool "Debug CPUfreq Samsung driver core"
 122         depends on ARM_S3C24XX_CPUFREQ
 123         help
 124           Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
 125
 126 config ARM_S3C24XX_CPUFREQ_IODEBUG
 127         bool "Debug CPUfreq Samsung driver IO timing"
 128         depends on ARM_S3C24XX_CPUFREQ
 129         help
 130           Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
 131
 132 config ARM_S3C24XX_CPUFREQ_DEBUGFS
 133         bool "Export debugfs for CPUFreq"
 134         depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
 135         help
 136           Export status information via debugfs.
 137
 138 config ARM_S3C2410_CPUFREQ
 139         bool
 140         depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
 141         select S3C2410_CPUFREQ_UTILS
 142         help
 143           CPU Frequency scaling support for S3C2410
 144
 145 config ARM_S3C2412_CPUFREQ
 146         bool
 147         depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
 148         default y
 149         select S3C2412_IOTIMING
 150         help
 151           CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
 152
 153 config ARM_S3C2416_CPUFREQ
 154         bool "S3C2416 CPU Frequency scaling support"
 155         depends on CPU_S3C2416
 156         help
 157           This adds the CPUFreq driver for the Samsung S3C2416 and
 158           S3C2450 SoC. The S3C2416 supports changing the rate of the
 159           armdiv clock source and also entering a so called dynamic
 160           voltage scaling mode in which it is possible to reduce the
 161           core voltage of the CPU.
 162
 163           If in doubt, say N.
 164
 165 config ARM_S3C2416_CPUFREQ_VCORESCALE
 166         bool "Allow voltage scaling for S3C2416 arm core"
 167         depends on ARM_S3C2416_CPUFREQ && REGULATOR
 168         help
 169           Enable CPU voltage scaling when entering the dvs mode.
 170           It uses information gathered through existing hardware and
 171           tests but not documented in any datasheet.
 172
 173           If in doubt, say N.
 174
 175 config ARM_S3C2440_CPUFREQ
 176         bool "S3C2440/S3C2442 CPU Frequency scaling support"
 177         depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
 178         select S3C2410_CPUFREQ_UTILS
 179         default y
 180         help
 181           CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
 182
 183 config ARM_S3C64XX_CPUFREQ
 184         bool "Samsung S3C64XX"
 185         depends on CPU_S3C6410
 186         default y
 187         help
 188           This adds the CPUFreq driver for Samsung S3C6410 SoC.
 189
 190           If in doubt, say N.
 191
 192 config ARM_S5PV210_CPUFREQ
 193         bool "Samsung S5PV210 and S5PC110"
 194         depends on CPU_S5PV210
 195         default y
 196         help
 197           This adds the CPUFreq driver for Samsung S5PV210 and
 198           S5PC110 SoCs.
 199
 200           If in doubt, say N.
 201
 202 config ARM_SA1100_CPUFREQ
 203         bool
 204
 205 config ARM_SA1110_CPUFREQ
 206         bool
 207
 208 config ARM_SCPI_CPUFREQ
 209         tristate "SCPI based CPUfreq driver"
 210         depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
 211         help
 212           This adds the CPUfreq driver support for ARM big.LITTLE platforms
 213           using SCPI protocol for CPU power management.
 214
 215           This driver uses SCPI Message Protocol driver to interact with the
 216           firmware providing the CPU DVFS functionality.
 217
 218 config ARM_SPEAR_CPUFREQ
 219         bool "SPEAr CPUFreq support"
 220         depends on PLAT_SPEAR
 221         default y
 222         help
 223           This adds the CPUFreq driver support for SPEAr SOCs.
 224
 225 config ARM_STI_CPUFREQ
 226         tristate "STi CPUFreq support"
 227         depends on SOC_STIH407
 228         help
 229           This driver uses the generic OPP framework to match the running
 230           platform with a predefined set of suitable values.  If not provided
 231           we will fall-back so safe-values contained in Device Tree.  Enable
 232           this config option if you wish to add CPUFreq support for STi based
 233           SoCs.
 234
 235 config ARM_TANGO_CPUFREQ
 236         bool
 237         depends on CPUFREQ_DT && ARCH_TANGO
 238         default y
 239
 240 config ARM_TEGRA20_CPUFREQ
 241         bool "Tegra20 CPUFreq support"
 242         depends on ARCH_TEGRA
 243         default y
 244         help
 245           This adds the CPUFreq driver support for Tegra20 SOCs.
 246
 247 config ARM_TEGRA124_CPUFREQ
 248         tristate "Tegra124 CPUFreq support"
 249         depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
 250         default y
 251         help
 252           This adds the CPUFreq driver support for Tegra124 SOCs.
 253
 254 config ARM_TEGRA186_CPUFREQ
 255         tristate "Tegra186 CPUFreq support"
 256         depends on ARCH_TEGRA && TEGRA_BPMP
 257         help
 258           This adds the CPUFreq driver support for Tegra186 SOCs.
 259
 260 config ARM_TI_CPUFREQ
 261         bool "Texas Instruments CPUFreq support"
 262         depends on ARCH_OMAP2PLUS
 263         help
 264           This driver enables valid OPPs on the running platform based on
 265           values contained within the SoC in use. Enable this in order to
 266           use the cpufreq-dt driver on all Texas Instruments platforms that
 267           provide dt based operating-points-v2 tables with opp-supported-hw
 268           data provided. Required for cpufreq support on AM335x, AM437x,
 269           DRA7x, and AM57x platforms.
 270
 271 config ARM_PXA2xx_CPUFREQ
 272         tristate "Intel PXA2xx CPUfreq driver"
 273         depends on PXA27x || PXA25x
 274         help
 275           This add the CPUFreq driver support for Intel PXA2xx SOCs.
 276
 277           If in doubt, say N.
 278
 279 config ACPI_CPPC_CPUFREQ
 280         tristate "CPUFreq driver based on the ACPI CPPC spec"
 281         depends on ACPI_PROCESSOR
 282         select ACPI_CPPC_LIB
 283         default n
 284         help
 285           This adds a CPUFreq driver which uses CPPC methods
 286           as described in the ACPIv5.1 spec. CPPC stands for
 287           Collaborative Processor Performance Controls. It
 288           is based on an abstract continuous scale of CPU
 289           performance values which allows the remote power
 290           processor to flexibly optimize for power and
 291           performance. CPPC relies on power management firmware
 292           support for its operation.
 293
 294           If in doubt, say N.