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