1# 2# ARM CPU Frequency scaling drivers 3# 4 5# big LITTLE core layer and glue drivers 6config ARM_BIG_LITTLE_CPUFREQ 7 tristate "Generic ARM big LITTLE CPUfreq driver" 8 depends on (BIG_LITTLE && ARM_CPU_TOPOLOGY) || (ARM64 && SMP) 9 depends on HAVE_CLK 10 select PM_OPP 11 help 12 This enables the Generic CPUfreq driver for ARM big.LITTLE platforms. 13 14config ARM_DT_BL_CPUFREQ 15 tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver" 16 depends on ARM_BIG_LITTLE_CPUFREQ && OF 17 help 18 This enables probing via DT for Generic CPUfreq driver for ARM 19 big.LITTLE platform. This gets frequency tables from DT. 20 21config ARM_VEXPRESS_SPC_CPUFREQ 22 tristate "Versatile Express SPC based CPUfreq driver" 23 depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC 24 help 25 This add the CPUfreq driver support for Versatile Express 26 big.LITTLE platforms using SPC for power management. 27 28 29config ARM_EXYNOS_CPUFREQ 30 bool 31 32config ARM_EXYNOS4210_CPUFREQ 33 bool "SAMSUNG EXYNOS4210" 34 depends on CPU_EXYNOS4210 35 default y 36 select ARM_EXYNOS_CPUFREQ 37 help 38 This adds the CPUFreq driver for Samsung EXYNOS4210 39 SoC (S5PV310 or S5PC210). 40 41 If in doubt, say N. 42 43config ARM_EXYNOS4X12_CPUFREQ 44 bool "SAMSUNG EXYNOS4x12" 45 depends on SOC_EXYNOS4212 || SOC_EXYNOS4412 46 default y 47 select ARM_EXYNOS_CPUFREQ 48 help 49 This adds the CPUFreq driver for Samsung EXYNOS4X12 50 SoC (EXYNOS4212 or EXYNOS4412). 51 52 If in doubt, say N. 53 54config ARM_EXYNOS5250_CPUFREQ 55 bool "SAMSUNG EXYNOS5250" 56 depends on SOC_EXYNOS5250 57 default y 58 select ARM_EXYNOS_CPUFREQ 59 help 60 This adds the CPUFreq driver for Samsung EXYNOS5250 61 SoC. 62 63 If in doubt, say N. 64 65config ARM_EXYNOS5440_CPUFREQ 66 bool "SAMSUNG EXYNOS5440" 67 depends on SOC_EXYNOS5440 68 depends on HAVE_CLK && OF 69 select PM_OPP 70 default y 71 help 72 This adds the CPUFreq driver for Samsung EXYNOS5440 73 SoC. The nature of exynos5440 clock controller is 74 different than previous exynos controllers so not using 75 the common exynos framework. 76 77 If in doubt, say N. 78 79config ARM_EXYNOS_CPU_FREQ_BOOST_SW 80 bool "EXYNOS Frequency Overclocking - Software" 81 depends on ARM_EXYNOS_CPUFREQ 82 select CPU_FREQ_BOOST_SW 83 select EXYNOS_THERMAL 84 help 85 This driver supports software managed overclocking (BOOST). 86 It allows usage of special frequencies for Samsung Exynos 87 processors if thermal conditions are appropriate. 88 89 It requires, for safe operation, thermal framework with properly 90 defined trip points. 91 92 If in doubt, say N. 93 94config ARM_HIGHBANK_CPUFREQ 95 tristate "Calxeda Highbank-based" 96 depends on ARCH_HIGHBANK && GENERIC_CPUFREQ_CPU0 && REGULATOR 97 default m 98 help 99 This adds the CPUFreq driver for Calxeda Highbank SoC 100 based boards. 101 102 If in doubt, say N. 103 104config ARM_IMX6Q_CPUFREQ 105 tristate "Freescale i.MX6 cpufreq support" 106 depends on ARCH_MXC 107 depends on REGULATOR_ANATOP 108 help 109 This adds cpufreq driver support for Freescale i.MX6 series SoCs. 110 111 If in doubt, say N. 112 113config ARM_INTEGRATOR 114 tristate "CPUfreq driver for ARM Integrator CPUs" 115 depends on ARCH_INTEGRATOR 116 default y 117 help 118 This enables the CPUfreq driver for ARM Integrator CPUs. 119 If in doubt, say Y. 120 121config ARM_KIRKWOOD_CPUFREQ 122 def_bool MACH_KIRKWOOD 123 help 124 This adds the CPUFreq driver for Marvell Kirkwood 125 SoCs. 126 127config ARM_OMAP2PLUS_CPUFREQ 128 bool "TI OMAP2+" 129 depends on ARCH_OMAP2PLUS 130 default ARCH_OMAP2PLUS 131 132config ARM_S3C_CPUFREQ 133 bool 134 help 135 Internal configuration node for common cpufreq on Samsung SoC 136 137config ARM_S3C24XX_CPUFREQ 138 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)" 139 depends on ARCH_S3C24XX 140 select ARM_S3C_CPUFREQ 141 help 142 This enables the CPUfreq driver for the Samsung S3C24XX family 143 of CPUs. 144 145 For details, take a look at <file:Documentation/cpu-freq>. 146 147 If in doubt, say N. 148 149config ARM_S3C24XX_CPUFREQ_DEBUG 150 bool "Debug CPUfreq Samsung driver core" 151 depends on ARM_S3C24XX_CPUFREQ 152 help 153 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core 154 155config ARM_S3C24XX_CPUFREQ_IODEBUG 156 bool "Debug CPUfreq Samsung driver IO timing" 157 depends on ARM_S3C24XX_CPUFREQ 158 help 159 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core 160 161config ARM_S3C24XX_CPUFREQ_DEBUGFS 162 bool "Export debugfs for CPUFreq" 163 depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS 164 help 165 Export status information via debugfs. 166 167config ARM_S3C2410_CPUFREQ 168 bool 169 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410 170 select S3C2410_CPUFREQ_UTILS 171 help 172 CPU Frequency scaling support for S3C2410 173 174config ARM_S3C2412_CPUFREQ 175 bool 176 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412 177 default y 178 select S3C2412_IOTIMING 179 help 180 CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs. 181 182config ARM_S3C2416_CPUFREQ 183 bool "S3C2416 CPU Frequency scaling support" 184 depends on CPU_S3C2416 185 help 186 This adds the CPUFreq driver for the Samsung S3C2416 and 187 S3C2450 SoC. The S3C2416 supports changing the rate of the 188 armdiv clock source and also entering a so called dynamic 189 voltage scaling mode in which it is possible to reduce the 190 core voltage of the CPU. 191 192 If in doubt, say N. 193 194config ARM_S3C2416_CPUFREQ_VCORESCALE 195 bool "Allow voltage scaling for S3C2416 arm core" 196 depends on ARM_S3C2416_CPUFREQ && REGULATOR 197 help 198 Enable CPU voltage scaling when entering the dvs mode. 199 It uses information gathered through existing hardware and 200 tests but not documented in any datasheet. 201 202 If in doubt, say N. 203 204config ARM_S3C2440_CPUFREQ 205 bool "S3C2440/S3C2442 CPU Frequency scaling support" 206 depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442) 207 select S3C2410_CPUFREQ_UTILS 208 default y 209 help 210 CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs. 211 212config ARM_S3C64XX_CPUFREQ 213 bool "Samsung S3C64XX" 214 depends on CPU_S3C6410 215 default y 216 help 217 This adds the CPUFreq driver for Samsung S3C6410 SoC. 218 219 If in doubt, say N. 220 221config ARM_S5PV210_CPUFREQ 222 bool "Samsung S5PV210 and S5PC110" 223 depends on CPU_S5PV210 224 default y 225 help 226 This adds the CPUFreq driver for Samsung S5PV210 and 227 S5PC110 SoCs. 228 229 If in doubt, say N. 230 231config ARM_SA1100_CPUFREQ 232 bool 233 234config ARM_SA1110_CPUFREQ 235 bool 236 237config ARM_SPEAR_CPUFREQ 238 bool "SPEAr CPUFreq support" 239 depends on PLAT_SPEAR 240 default y 241 help 242 This adds the CPUFreq driver support for SPEAr SOCs. 243 244config ARM_TEGRA_CPUFREQ 245 bool "TEGRA CPUFreq support" 246 depends on ARCH_TEGRA 247 default y 248 help 249 This adds the CPUFreq driver support for TEGRA SOCs. 250