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_DB8500_CPUFREQ
  75         tristate "ST-Ericsson DB8500 cpufreq" if COMPILE_TEST && !ARCH_U8500
  76         default ARCH_U8500
  77         depends on HAS_IOMEM
  78         depends on !CPU_THERMAL || THERMAL
  79         help
  80           This adds the CPUFreq driver for ST-Ericsson Ux500 (DB8500) SoC
  81           series.
  82
  83 config ARM_IMX6Q_CPUFREQ
  84         tristate "Freescale i.MX6 cpufreq support"
  85         depends on ARCH_MXC
  86         depends on REGULATOR_ANATOP
  87         select PM_OPP
  88         help
  89           This adds cpufreq driver support for Freescale i.MX6 series SoCs.
  90
  91           If in doubt, say N.
  92
  93 config ARM_KIRKWOOD_CPUFREQ
  94         def_bool MACH_KIRKWOOD
  95         help
  96           This adds the CPUFreq driver for Marvell Kirkwood
  97           SoCs.
  98
  99 config ARM_MT8173_CPUFREQ
 100         tristate "Mediatek MT8173 CPUFreq support"
 101         depends on ARCH_MEDIATEK && REGULATOR
 102         depends on ARM64 || (ARM_CPU_TOPOLOGY && COMPILE_TEST)
 103         depends on !CPU_THERMAL || THERMAL
 104         select PM_OPP
 105         help
 106           This adds the CPUFreq driver support for Mediatek MT8173 SoC.
 107
 108 config ARM_OMAP2PLUS_CPUFREQ
 109         bool "TI OMAP2+"
 110         depends on ARCH_OMAP2PLUS
 111         default ARCH_OMAP2PLUS
 112
 113 config ARM_S3C_CPUFREQ
 114         bool
 115         help
 116           Internal configuration node for common cpufreq on Samsung SoC
 117
 118 config ARM_S3C24XX_CPUFREQ
 119         bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
 120         depends on ARCH_S3C24XX
 121         select ARM_S3C_CPUFREQ
 122         help
 123           This enables the CPUfreq driver for the Samsung S3C24XX family
 124           of CPUs.
 125
 126           For details, take a look at <file:Documentation/cpu-freq>.
 127
 128           If in doubt, say N.
 129
 130 config ARM_S3C24XX_CPUFREQ_DEBUG
 131         bool "Debug CPUfreq Samsung driver core"
 132         depends on ARM_S3C24XX_CPUFREQ
 133         help
 134           Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
 135
 136 config ARM_S3C24XX_CPUFREQ_IODEBUG
 137         bool "Debug CPUfreq Samsung driver IO timing"
 138         depends on ARM_S3C24XX_CPUFREQ
 139         help
 140           Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
 141
 142 config ARM_S3C24XX_CPUFREQ_DEBUGFS
 143         bool "Export debugfs for CPUFreq"
 144         depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
 145         help
 146           Export status information via debugfs.
 147
 148 config ARM_S3C2410_CPUFREQ
 149         bool
 150         depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
 151         select S3C2410_CPUFREQ_UTILS
 152         help
 153           CPU Frequency scaling support for S3C2410
 154
 155 config ARM_S3C2412_CPUFREQ
 156         bool
 157         depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
 158         default y
 159         select S3C2412_IOTIMING
 160         help
 161           CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
 162
 163 config ARM_S3C2416_CPUFREQ
 164         bool "S3C2416 CPU Frequency scaling support"
 165         depends on CPU_S3C2416
 166         help
 167           This adds the CPUFreq driver for the Samsung S3C2416 and
 168           S3C2450 SoC. The S3C2416 supports changing the rate of the
 169           armdiv clock source and also entering a so called dynamic
 170           voltage scaling mode in which it is possible to reduce the
 171           core voltage of the CPU.
 172
 173           If in doubt, say N.
 174
 175 config ARM_S3C2416_CPUFREQ_VCORESCALE
 176         bool "Allow voltage scaling for S3C2416 arm core"
 177         depends on ARM_S3C2416_CPUFREQ && REGULATOR
 178         help
 179           Enable CPU voltage scaling when entering the dvs mode.
 180           It uses information gathered through existing hardware and
 181           tests but not documented in any datasheet.
 182
 183           If in doubt, say N.
 184
 185 config ARM_S3C2440_CPUFREQ
 186         bool "S3C2440/S3C2442 CPU Frequency scaling support"
 187         depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
 188         select S3C2410_CPUFREQ_UTILS
 189         default y
 190         help
 191           CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
 192
 193 config ARM_S3C64XX_CPUFREQ
 194         bool "Samsung S3C64XX"
 195         depends on CPU_S3C6410
 196         default y
 197         help
 198           This adds the CPUFreq driver for Samsung S3C6410 SoC.
 199
 200           If in doubt, say N.
 201
 202 config ARM_S5PV210_CPUFREQ
 203         bool "Samsung S5PV210 and S5PC110"
 204         depends on CPU_S5PV210
 205         default y
 206         help
 207           This adds the CPUFreq driver for Samsung S5PV210 and
 208           S5PC110 SoCs.
 209
 210           If in doubt, say N.
 211
 212 config ARM_SA1100_CPUFREQ
 213         bool
 214
 215 config ARM_SA1110_CPUFREQ
 216         bool
 217
 218 config ARM_SCPI_CPUFREQ
 219         tristate "SCPI based CPUfreq driver"
 220         depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
 221         help
 222           This adds the CPUfreq driver support for ARM big.LITTLE platforms
 223           using SCPI protocol for CPU power management.
 224
 225           This driver uses SCPI Message Protocol driver to interact with the
 226           firmware providing the CPU DVFS functionality.
 227
 228 config ARM_SPEAR_CPUFREQ
 229         bool "SPEAr CPUFreq support"
 230         depends on PLAT_SPEAR
 231         default y
 232         help
 233           This adds the CPUFreq driver support for SPEAr SOCs.
 234
 235 config ARM_STI_CPUFREQ
 236         tristate "STi CPUFreq support"
 237         depends on SOC_STIH407
 238         help
 239           This driver uses the generic OPP framework to match the running
 240           platform with a predefined set of suitable values.  If not provided
 241           we will fall-back so safe-values contained in Device Tree.  Enable
 242           this config option if you wish to add CPUFreq support for STi based
 243           SoCs.
 244
 245 config ARM_TEGRA20_CPUFREQ
 246         bool "Tegra20 CPUFreq support"
 247         depends on ARCH_TEGRA
 248         default y
 249         help
 250           This adds the CPUFreq driver support for Tegra20 SOCs.
 251
 252 config ARM_TEGRA124_CPUFREQ
 253         tristate "Tegra124 CPUFreq support"
 254         depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
 255         default y
 256         help
 257           This adds the CPUFreq driver support for Tegra124 SOCs.
 258
 259 config ARM_TEGRA186_CPUFREQ
 260         tristate "Tegra186 CPUFreq support"
 261         depends on ARCH_TEGRA && TEGRA_BPMP
 262         help
 263           This adds the CPUFreq driver support for Tegra186 SOCs.
 264
 265 config ARM_TI_CPUFREQ
 266         bool "Texas Instruments CPUFreq support"
 267         depends on ARCH_OMAP2PLUS
 268         help
 269           This driver enables valid OPPs on the running platform based on
 270           values contained within the SoC in use. Enable this in order to
 271           use the cpufreq-dt driver on all Texas Instruments platforms that
 272           provide dt based operating-points-v2 tables with opp-supported-hw
 273           data provided. Required for cpufreq support on AM335x, AM437x,
 274           DRA7x, and AM57x platforms.
 275
 276 config ARM_PXA2xx_CPUFREQ
 277         tristate "Intel PXA2xx CPUfreq driver"
 278         depends on PXA27x || PXA25x
 279         help
 280           This add the CPUFreq driver support for Intel PXA2xx SOCs.
 281
 282           If in doubt, say N.
 283
 284 config ACPI_CPPC_CPUFREQ
 285         tristate "CPUFreq driver based on the ACPI CPPC spec"
 286         depends on ACPI_PROCESSOR
 287         select ACPI_CPPC_LIB
 288         default n
 289         help
 290           This adds a CPUFreq driver which uses CPPC methods
 291           as described in the ACPIv5.1 spec. CPPC stands for
 292           Collaborative Processor Performance Controls. It
 293           is based on an abstract continuous scale of CPU
 294           performance values which allows the remote power
 295           processor to flexibly optimize for power and
 296           performance. CPPC relies on power management firmware
 297           support for its operation.
 298
 299           If in doubt, say N.