drivers/cpufreq/Kconfig.arm

   1 #
   2 # ARM CPU Frequency scaling drivers
   3 #
   4
   5 config ACPI_CPPC_CPUFREQ
   6         tristate "CPUFreq driver based on the ACPI CPPC spec"
   7         depends on ACPI_PROCESSOR
   8         select ACPI_CPPC_LIB
   9         help
  10           This adds a CPUFreq driver which uses CPPC methods
  11           as described in the ACPIv5.1 spec. CPPC stands for
  12           Collaborative Processor Performance Controls. It
  13           is based on an abstract continuous scale of CPU
  14           performance values which allows the remote power
  15           processor to flexibly optimize for power and
  16           performance. CPPC relies on power management firmware
  17           support for its operation.
  18
  19           If in doubt, say N.
  20
  21 config ARM_ARMADA_37XX_CPUFREQ
  22         tristate "Armada 37xx CPUFreq support"
  23         depends on ARCH_MVEBU
  24         help
  25           This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
  26           The Armada 37xx PMU supports 4 frequency and VDD levels.
  27
  28 # big LITTLE core layer and glue drivers
  29 config ARM_BIG_LITTLE_CPUFREQ
  30         tristate "Generic ARM big LITTLE CPUfreq driver"
  31         depends on (ARM_CPU_TOPOLOGY || ARM64) && HAVE_CLK
  32         # if CPU_THERMAL is on and THERMAL=m, ARM_BIT_LITTLE_CPUFREQ cannot be =y
  33         depends on !CPU_THERMAL || THERMAL
  34         select PM_OPP
  35         help
  36           This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
  37
  38 config ARM_DT_BL_CPUFREQ
  39         tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
  40         depends on ARM_BIG_LITTLE_CPUFREQ && OF
  41         help
  42           This enables probing via DT for Generic CPUfreq driver for ARM
  43           big.LITTLE platform. This gets frequency tables from DT.
  44
  45 config ARM_SCPI_CPUFREQ
  46         tristate "SCPI based CPUfreq driver"
  47         depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
  48         help
  49           This adds the CPUfreq driver support for ARM big.LITTLE platforms
  50           using SCPI protocol for CPU power management.
  51
  52           This driver uses SCPI Message Protocol driver to interact with the
  53           firmware providing the CPU DVFS functionality.
  54
  55 config ARM_VEXPRESS_SPC_CPUFREQ
  56         tristate "Versatile Express SPC based CPUfreq driver"
  57         depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
  58         help
  59           This add the CPUfreq driver support for Versatile Express
  60           big.LITTLE platforms using SPC for power management.
  61
  62 config ARM_BRCMSTB_AVS_CPUFREQ
  63         tristate "Broadcom STB AVS CPUfreq driver"
  64         depends on ARCH_BRCMSTB || COMPILE_TEST
  65         default y
  66         help
  67           Some Broadcom STB SoCs use a co-processor running proprietary firmware
  68           ("AVS") to handle voltage and frequency scaling. This driver provides
  69           a standard CPUfreq interface to to the firmware.
  70
  71           Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
  72
  73 config ARM_BRCMSTB_AVS_CPUFREQ_DEBUG
  74         bool "Broadcom STB AVS CPUfreq driver sysfs debug capability"
  75         depends on ARM_BRCMSTB_AVS_CPUFREQ
  76         help
  77           Enabling this option turns on debug support via sysfs under
  78           /sys/kernel/debug/brcmstb-avs-cpufreq. It is possible to read all and
  79           write some AVS mailbox registers through sysfs entries.
  80
  81           If in doubt, say N.
  82
  83 config ARM_EXYNOS5440_CPUFREQ
  84         tristate "SAMSUNG EXYNOS5440"
  85         depends on SOC_EXYNOS5440
  86         depends on HAVE_CLK && OF
  87         select PM_OPP
  88         default y
  89         help
  90           This adds the CPUFreq driver for Samsung EXYNOS5440
  91           SoC. The nature of exynos5440 clock controller is
  92           different than previous exynos controllers so not using
  93           the common exynos framework.
  94
  95           If in doubt, say N.
  96
  97 config ARM_HIGHBANK_CPUFREQ
  98         tristate "Calxeda Highbank-based"
  99         depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
 100         default m
 101         help
 102           This adds the CPUFreq driver for Calxeda Highbank SoC
 103           based boards.
 104
 105           If in doubt, say N.
 106
 107 config ARM_IMX6Q_CPUFREQ
 108         tristate "Freescale i.MX6 cpufreq support"
 109         depends on ARCH_MXC
 110         depends on REGULATOR_ANATOP
 111         select PM_OPP
 112         help
 113           This adds cpufreq driver support for Freescale i.MX6 series SoCs.
 114
 115           If in doubt, say N.
 116
 117 config ARM_KIRKWOOD_CPUFREQ
 118         def_bool MACH_KIRKWOOD
 119         help
 120           This adds the CPUFreq driver for Marvell Kirkwood
 121           SoCs.
 122
 123 config ARM_MEDIATEK_CPUFREQ
 124         tristate "CPU Frequency scaling support for MediaTek SoCs"
 125         depends on ARCH_MEDIATEK && REGULATOR
 126         depends on !CPU_THERMAL || THERMAL
 127         select PM_OPP
 128         help
 129           This adds the CPUFreq driver support for MediaTek SoCs.
 130
 131 config ARM_OMAP2PLUS_CPUFREQ
 132         bool "TI OMAP2+"
 133         depends on ARCH_OMAP2PLUS
 134         default ARCH_OMAP2PLUS
 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_SPEAR_CPUFREQ
 242         bool "SPEAr CPUFreq support"
 243         depends on PLAT_SPEAR
 244         default y
 245         help
 246           This adds the CPUFreq driver support for SPEAr SOCs.
 247
 248 config ARM_STI_CPUFREQ
 249         tristate "STi CPUFreq support"
 250         depends on SOC_STIH407
 251         help
 252           This driver uses the generic OPP framework to match the running
 253           platform with a predefined set of suitable values.  If not provided
 254           we will fall-back so safe-values contained in Device Tree.  Enable
 255           this config option if you wish to add CPUFreq support for STi based
 256           SoCs.
 257
 258 config ARM_TANGO_CPUFREQ
 259         bool
 260         depends on CPUFREQ_DT && ARCH_TANGO
 261         default y
 262
 263 config ARM_TEGRA20_CPUFREQ
 264         bool "Tegra20 CPUFreq support"
 265         depends on ARCH_TEGRA
 266         default y
 267         help
 268           This adds the CPUFreq driver support for Tegra20 SOCs.
 269
 270 config ARM_TEGRA124_CPUFREQ
 271         tristate "Tegra124 CPUFreq support"
 272         depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
 273         default y
 274         help
 275           This adds the CPUFreq driver support for Tegra124 SOCs.
 276
 277 config ARM_TEGRA186_CPUFREQ
 278         tristate "Tegra186 CPUFreq support"
 279         depends on ARCH_TEGRA && TEGRA_BPMP
 280         help
 281           This adds the CPUFreq driver support for Tegra186 SOCs.
 282
 283 config ARM_TI_CPUFREQ
 284         bool "Texas Instruments CPUFreq support"
 285         depends on ARCH_OMAP2PLUS
 286         help
 287           This driver enables valid OPPs on the running platform based on
 288           values contained within the SoC in use. Enable this in order to
 289           use the cpufreq-dt driver on all Texas Instruments platforms that
 290           provide dt based operating-points-v2 tables with opp-supported-hw
 291           data provided. Required for cpufreq support on AM335x, AM437x,
 292           DRA7x, and AM57x platforms.
 293
 294 config ARM_PXA2xx_CPUFREQ
 295         tristate "Intel PXA2xx CPUfreq driver"
 296         depends on PXA27x || PXA25x
 297         help
 298           This add the CPUFreq driver support for Intel PXA2xx SOCs.
 299
 300           If in doubt, say N.