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