Kconfig.arm (10406B)
1# SPDX-License-Identifier: GPL-2.0-only 2# 3# ARM CPU Frequency scaling drivers 4# 5 6config ACPI_CPPC_CPUFREQ 7 tristate "CPUFreq driver based on the ACPI CPPC spec" 8 depends on ACPI_PROCESSOR 9 select ACPI_CPPC_LIB 10 help 11 This adds a CPUFreq driver which uses CPPC methods 12 as described in the ACPIv5.1 spec. CPPC stands for 13 Collaborative Processor Performance Controls. It 14 is based on an abstract continuous scale of CPU 15 performance values which allows the remote power 16 processor to flexibly optimize for power and 17 performance. CPPC relies on power management firmware 18 support for its operation. 19 20 If in doubt, say N. 21 22config ACPI_CPPC_CPUFREQ_FIE 23 bool "Frequency Invariance support for CPPC cpufreq driver" 24 depends on ACPI_CPPC_CPUFREQ && GENERIC_ARCH_TOPOLOGY 25 default y 26 help 27 This extends frequency invariance support in the CPPC cpufreq driver, 28 by using CPPC delivered and reference performance counters. 29 30 If in doubt, say N. 31 32config ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM 33 tristate "Allwinner nvmem based SUN50I CPUFreq driver" 34 depends on ARCH_SUNXI 35 depends on NVMEM_SUNXI_SID 36 select PM_OPP 37 help 38 This adds the nvmem based CPUFreq driver for Allwinner 39 h6 SoC. 40 41 To compile this driver as a module, choose M here: the 42 module will be called sun50i-cpufreq-nvmem. 43 44config ARM_ARMADA_37XX_CPUFREQ 45 tristate "Armada 37xx CPUFreq support" 46 depends on ARCH_MVEBU && CPUFREQ_DT 47 help 48 This adds the CPUFreq driver support for Marvell Armada 37xx SoCs. 49 The Armada 37xx PMU supports 4 frequency and VDD levels. 50 51config ARM_ARMADA_8K_CPUFREQ 52 tristate "Armada 8K CPUFreq driver" 53 depends on ARCH_MVEBU && CPUFREQ_DT 54 select ARMADA_AP_CPU_CLK 55 help 56 This enables the CPUFreq driver support for Marvell 57 Armada8k SOCs. 58 Armada8K device has the AP806 which supports scaling 59 to any full integer divider. 60 61 If in doubt, say N. 62 63config ARM_SCPI_CPUFREQ 64 tristate "SCPI based CPUfreq driver" 65 depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI 66 help 67 This adds the CPUfreq driver support for ARM platforms using SCPI 68 protocol for CPU power management. 69 70 This driver uses SCPI Message Protocol driver to interact with the 71 firmware providing the CPU DVFS functionality. 72 73config ARM_VEXPRESS_SPC_CPUFREQ 74 tristate "Versatile Express SPC based CPUfreq driver" 75 depends on ARM_CPU_TOPOLOGY && HAVE_CLK 76 depends on ARCH_VEXPRESS_SPC 77 select PM_OPP 78 help 79 This add the CPUfreq driver support for Versatile Express 80 big.LITTLE platforms using SPC for power management. 81 82config ARM_BRCMSTB_AVS_CPUFREQ 83 tristate "Broadcom STB AVS CPUfreq driver" 84 depends on ARCH_BRCMSTB || COMPILE_TEST 85 default y 86 help 87 Some Broadcom STB SoCs use a co-processor running proprietary firmware 88 ("AVS") to handle voltage and frequency scaling. This driver provides 89 a standard CPUfreq interface to to the firmware. 90 91 Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS. 92 93config ARM_HIGHBANK_CPUFREQ 94 tristate "Calxeda Highbank-based" 95 depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR 96 default m 97 help 98 This adds the CPUFreq driver for Calxeda Highbank SoC 99 based boards. 100 101 If in doubt, say N. 102 103config ARM_IMX6Q_CPUFREQ 104 tristate "Freescale i.MX6 cpufreq support" 105 depends on ARCH_MXC 106 depends on REGULATOR_ANATOP 107 depends on NVMEM_IMX_OCOTP || COMPILE_TEST 108 select PM_OPP 109 help 110 This adds cpufreq driver support for Freescale i.MX6 series SoCs. 111 112 If in doubt, say N. 113 114config ARM_IMX_CPUFREQ_DT 115 tristate "Freescale i.MX8M cpufreq support" 116 depends on ARCH_MXC && CPUFREQ_DT 117 help 118 This adds cpufreq driver support for Freescale i.MX8M series SoCs, 119 based on cpufreq-dt. 120 121 If in doubt, say N. 122 123config ARM_KIRKWOOD_CPUFREQ 124 def_bool MACH_KIRKWOOD 125 help 126 This adds the CPUFreq driver for Marvell Kirkwood 127 SoCs. 128 129config ARM_MEDIATEK_CPUFREQ 130 tristate "CPU Frequency scaling support for MediaTek SoCs" 131 depends on ARCH_MEDIATEK && REGULATOR 132 select PM_OPP 133 help 134 This adds the CPUFreq driver support for MediaTek SoCs. 135 136config ARM_MEDIATEK_CPUFREQ_HW 137 tristate "MediaTek CPUFreq HW driver" 138 depends on ARCH_MEDIATEK || COMPILE_TEST 139 default m 140 help 141 Support for the CPUFreq HW driver. 142 Some MediaTek chipsets have a HW engine to offload the steps 143 necessary for changing the frequency of the CPUs. Firmware loaded 144 in this engine exposes a programming interface to the OS. 145 The driver implements the cpufreq interface for this HW engine. 146 Say Y if you want to support CPUFreq HW. 147 148config ARM_OMAP2PLUS_CPUFREQ 149 bool "TI OMAP2+" 150 depends on ARCH_OMAP2PLUS 151 default ARCH_OMAP2PLUS 152 153config ARM_QCOM_CPUFREQ_NVMEM 154 tristate "Qualcomm nvmem based CPUFreq" 155 depends on ARCH_QCOM 156 depends on QCOM_QFPROM 157 depends on QCOM_SMEM 158 select PM_OPP 159 help 160 This adds the CPUFreq driver for Qualcomm Kryo SoC based boards. 161 162 If in doubt, say N. 163 164config ARM_QCOM_CPUFREQ_HW 165 tristate "QCOM CPUFreq HW driver" 166 depends on ARCH_QCOM || COMPILE_TEST 167 help 168 Support for the CPUFreq HW driver. 169 Some QCOM chipsets have a HW engine to offload the steps 170 necessary for changing the frequency of the CPUs. Firmware loaded 171 in this engine exposes a programming interface to the OS. 172 The driver implements the cpufreq interface for this HW engine. 173 Say Y if you want to support CPUFreq HW. 174 175config ARM_RASPBERRYPI_CPUFREQ 176 tristate "Raspberry Pi cpufreq support" 177 depends on CLK_RASPBERRYPI || COMPILE_TEST 178 help 179 This adds the CPUFreq driver for Raspberry Pi 180 181 If in doubt, say N. 182 183config ARM_S3C_CPUFREQ 184 bool 185 help 186 Internal configuration node for common cpufreq on Samsung SoC 187 188config ARM_S3C24XX_CPUFREQ 189 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)" 190 depends on ARCH_S3C24XX 191 select ARM_S3C_CPUFREQ 192 help 193 This enables the CPUfreq driver for the Samsung S3C24XX family 194 of CPUs. 195 196 For details, take a look at <file:Documentation/cpu-freq>. 197 198 If in doubt, say N. 199 200config ARM_S3C24XX_CPUFREQ_DEBUG 201 bool "Debug CPUfreq Samsung driver core" 202 depends on ARM_S3C24XX_CPUFREQ 203 help 204 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core 205 206config ARM_S3C24XX_CPUFREQ_IODEBUG 207 bool "Debug CPUfreq Samsung driver IO timing" 208 depends on ARM_S3C24XX_CPUFREQ 209 help 210 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core 211 212config ARM_S3C24XX_CPUFREQ_DEBUGFS 213 bool "Export debugfs for CPUFreq" 214 depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS 215 help 216 Export status information via debugfs. 217 218config ARM_S3C2410_CPUFREQ 219 bool 220 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410 221 help 222 CPU Frequency scaling support for S3C2410 223 224config ARM_S3C2412_CPUFREQ 225 bool 226 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412 227 default y 228 select S3C2412_IOTIMING 229 help 230 CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs. 231 232config ARM_S3C2416_CPUFREQ 233 bool "S3C2416 CPU Frequency scaling support" 234 depends on CPU_S3C2416 235 help 236 This adds the CPUFreq driver for the Samsung S3C2416 and 237 S3C2450 SoC. The S3C2416 supports changing the rate of the 238 armdiv clock source and also entering a so called dynamic 239 voltage scaling mode in which it is possible to reduce the 240 core voltage of the CPU. 241 242 If in doubt, say N. 243 244config ARM_S3C2416_CPUFREQ_VCORESCALE 245 bool "Allow voltage scaling for S3C2416 arm core" 246 depends on ARM_S3C2416_CPUFREQ && REGULATOR 247 help 248 Enable CPU voltage scaling when entering the dvs mode. 249 It uses information gathered through existing hardware and 250 tests but not documented in any datasheet. 251 252 If in doubt, say N. 253 254config ARM_S3C2440_CPUFREQ 255 bool "S3C2440/S3C2442 CPU Frequency scaling support" 256 depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442) 257 default y 258 help 259 CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs. 260 261config ARM_S3C64XX_CPUFREQ 262 bool "Samsung S3C64XX" 263 depends on CPU_S3C6410 264 default y 265 help 266 This adds the CPUFreq driver for Samsung S3C6410 SoC. 267 268 If in doubt, say N. 269 270config ARM_S5PV210_CPUFREQ 271 bool "Samsung S5PV210 and S5PC110" 272 depends on CPU_S5PV210 273 default y 274 help 275 This adds the CPUFreq driver for Samsung S5PV210 and 276 S5PC110 SoCs. 277 278 If in doubt, say N. 279 280config ARM_SA1100_CPUFREQ 281 bool 282 283config ARM_SA1110_CPUFREQ 284 bool 285 286config ARM_SCMI_CPUFREQ 287 tristate "SCMI based CPUfreq driver" 288 depends on ARM_SCMI_PROTOCOL || COMPILE_TEST 289 select PM_OPP 290 help 291 This adds the CPUfreq driver support for ARM platforms using SCMI 292 protocol for CPU power management. 293 294 This driver uses SCMI Message Protocol driver to interact with the 295 firmware providing the CPU DVFS functionality. 296 297config ARM_SPEAR_CPUFREQ 298 bool "SPEAr CPUFreq support" 299 depends on PLAT_SPEAR 300 default y 301 help 302 This adds the CPUFreq driver support for SPEAr SOCs. 303 304config ARM_STI_CPUFREQ 305 tristate "STi CPUFreq support" 306 depends on CPUFREQ_DT && SOC_STIH407 307 help 308 This driver uses the generic OPP framework to match the running 309 platform with a predefined set of suitable values. If not provided 310 we will fall-back so safe-values contained in Device Tree. Enable 311 this config option if you wish to add CPUFreq support for STi based 312 SoCs. 313 314config ARM_TEGRA20_CPUFREQ 315 tristate "Tegra20/30 CPUFreq support" 316 depends on ARCH_TEGRA && CPUFREQ_DT 317 default y 318 help 319 This adds the CPUFreq driver support for Tegra20/30 SOCs. 320 321config ARM_TEGRA124_CPUFREQ 322 bool "Tegra124 CPUFreq support" 323 depends on ARCH_TEGRA && CPUFREQ_DT 324 default y 325 help 326 This adds the CPUFreq driver support for Tegra124 SOCs. 327 328config ARM_TEGRA186_CPUFREQ 329 tristate "Tegra186 CPUFreq support" 330 depends on ARCH_TEGRA && TEGRA_BPMP 331 help 332 This adds the CPUFreq driver support for Tegra186 SOCs. 333 334config ARM_TEGRA194_CPUFREQ 335 tristate "Tegra194 CPUFreq support" 336 depends on ARCH_TEGRA_194_SOC && TEGRA_BPMP 337 default y 338 help 339 This adds CPU frequency driver support for Tegra194 SOCs. 340 341config ARM_TI_CPUFREQ 342 bool "Texas Instruments CPUFreq support" 343 depends on ARCH_OMAP2PLUS 344 default ARCH_OMAP2PLUS 345 help 346 This driver enables valid OPPs on the running platform based on 347 values contained within the SoC in use. Enable this in order to 348 use the cpufreq-dt driver on all Texas Instruments platforms that 349 provide dt based operating-points-v2 tables with opp-supported-hw 350 data provided. Required for cpufreq support on AM335x, AM437x, 351 DRA7x, and AM57x platforms. 352 353config ARM_PXA2xx_CPUFREQ 354 tristate "Intel PXA2xx CPUfreq driver" 355 depends on PXA27x || PXA25x 356 help 357 This add the CPUFreq driver support for Intel PXA2xx SOCs. 358 359 If in doubt, say N.