2 # ARM CPU Frequency scaling drivers
5 # big LITTLE core layer and glue drivers
6 config ARM_BIG_LITTLE_CPUFREQ
7 tristate "Generic ARM big LITTLE CPUfreq driver"
8 depends on ARM && BIG_LITTLE && ARM_CPU_TOPOLOGY && HAVE_CLK
11 This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
13 config ARM_DT_BL_CPUFREQ
14 tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
15 depends on ARM_BIG_LITTLE_CPUFREQ && OF
17 This enables probing via DT for Generic CPUfreq driver for ARM
18 big.LITTLE platform. This gets frequency tables from DT.
20 config ARM_VEXPRESS_SPC_CPUFREQ
21 tristate "Versatile Express SPC based CPUfreq driver"
22 depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
24 This add the CPUfreq driver support for Versatile Express
25 big.LITTLE platforms using SPC for power management.
28 config ARM_EXYNOS_CPUFREQ
31 config ARM_EXYNOS4210_CPUFREQ
32 bool "SAMSUNG EXYNOS4210"
33 depends on CPU_EXYNOS4210
35 select ARM_EXYNOS_CPUFREQ
37 This adds the CPUFreq driver for Samsung EXYNOS4210
38 SoC (S5PV310 or S5PC210).
42 config ARM_EXYNOS4X12_CPUFREQ
43 bool "SAMSUNG EXYNOS4x12"
44 depends on SOC_EXYNOS4212 || SOC_EXYNOS4412
46 select ARM_EXYNOS_CPUFREQ
48 This adds the CPUFreq driver for Samsung EXYNOS4X12
49 SoC (EXYNOS4212 or EXYNOS4412).
53 config ARM_EXYNOS5250_CPUFREQ
54 bool "SAMSUNG EXYNOS5250"
55 depends on SOC_EXYNOS5250
57 select ARM_EXYNOS_CPUFREQ
59 This adds the CPUFreq driver for Samsung EXYNOS5250
64 config ARM_EXYNOS5440_CPUFREQ
65 bool "SAMSUNG EXYNOS5440"
66 depends on SOC_EXYNOS5440
67 depends on HAVE_CLK && OF
71 This adds the CPUFreq driver for Samsung EXYNOS5440
72 SoC. The nature of exynos5440 clock controller is
73 different than previous exynos controllers so not using
74 the common exynos framework.
78 config ARM_EXYNOS_CPU_FREQ_BOOST_SW
79 bool "EXYNOS Frequency Overclocking - Software"
80 depends on ARM_EXYNOS_CPUFREQ
81 select CPU_FREQ_BOOST_SW
84 This driver supports software managed overclocking (BOOST).
85 It allows usage of special frequencies for Samsung Exynos
86 processors if thermal conditions are appropriate.
88 It requires, for safe operation, thermal framework with properly
93 config ARM_HIGHBANK_CPUFREQ
94 tristate "Calxeda Highbank-based"
95 depends on ARCH_HIGHBANK && GENERIC_CPUFREQ_CPU0 && REGULATOR
98 This adds the CPUFreq driver for Calxeda Highbank SoC
103 config ARM_IMX6Q_CPUFREQ
104 tristate "Freescale i.MX6 cpufreq support"
106 depends on REGULATOR_ANATOP
108 This adds cpufreq driver support for Freescale i.MX6 series SoCs.
112 config ARM_INTEGRATOR
113 tristate "CPUfreq driver for ARM Integrator CPUs"
114 depends on ARCH_INTEGRATOR
117 This enables the CPUfreq driver for ARM Integrator CPUs.
120 config ARM_KIRKWOOD_CPUFREQ
121 def_bool MACH_KIRKWOOD
123 This adds the CPUFreq driver for Marvell Kirkwood
126 config ARM_OMAP2PLUS_CPUFREQ
128 depends on ARCH_OMAP2PLUS
129 default ARCH_OMAP2PLUS
131 config ARM_S3C_CPUFREQ
134 Internal configuration node for common cpufreq on Samsung SoC
136 config ARM_S3C24XX_CPUFREQ
137 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
138 depends on ARCH_S3C24XX
139 select ARM_S3C_CPUFREQ
141 This enables the CPUfreq driver for the Samsung S3C24XX family
144 For details, take a look at <file:Documentation/cpu-freq>.
148 config ARM_S3C24XX_CPUFREQ_DEBUG
149 bool "Debug CPUfreq Samsung driver core"
150 depends on ARM_S3C24XX_CPUFREQ
152 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
154 config ARM_S3C24XX_CPUFREQ_IODEBUG
155 bool "Debug CPUfreq Samsung driver IO timing"
156 depends on ARM_S3C24XX_CPUFREQ
158 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
160 config ARM_S3C24XX_CPUFREQ_DEBUGFS
161 bool "Export debugfs for CPUFreq"
162 depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
164 Export status information via debugfs.
166 config ARM_S3C2410_CPUFREQ
168 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
169 select S3C2410_CPUFREQ_UTILS
171 CPU Frequency scaling support for S3C2410
173 config ARM_S3C2412_CPUFREQ
175 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
177 select S3C2412_IOTIMING
179 CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
181 config ARM_S3C2416_CPUFREQ
182 bool "S3C2416 CPU Frequency scaling support"
183 depends on CPU_S3C2416
185 This adds the CPUFreq driver for the Samsung S3C2416 and
186 S3C2450 SoC. The S3C2416 supports changing the rate of the
187 armdiv clock source and also entering a so called dynamic
188 voltage scaling mode in which it is possible to reduce the
189 core voltage of the CPU.
193 config ARM_S3C2416_CPUFREQ_VCORESCALE
194 bool "Allow voltage scaling for S3C2416 arm core"
195 depends on ARM_S3C2416_CPUFREQ && REGULATOR
197 Enable CPU voltage scaling when entering the dvs mode.
198 It uses information gathered through existing hardware and
199 tests but not documented in any datasheet.
203 config ARM_S3C2440_CPUFREQ
204 bool "S3C2440/S3C2442 CPU Frequency scaling support"
205 depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
206 select S3C2410_CPUFREQ_UTILS
209 CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
211 config ARM_S3C64XX_CPUFREQ
212 bool "Samsung S3C64XX"
213 depends on CPU_S3C6410
216 This adds the CPUFreq driver for Samsung S3C6410 SoC.
220 config ARM_S5PV210_CPUFREQ
221 bool "Samsung S5PV210 and S5PC110"
222 depends on CPU_S5PV210
225 This adds the CPUFreq driver for Samsung S5PV210 and
230 config ARM_SA1100_CPUFREQ
233 config ARM_SA1110_CPUFREQ
236 config ARM_SPEAR_CPUFREQ
237 bool "SPEAr CPUFreq support"
238 depends on PLAT_SPEAR
241 This adds the CPUFreq driver support for SPEAr SOCs.
243 config ARM_TEGRA_CPUFREQ
244 bool "TEGRA CPUFreq support"
245 depends on ARCH_TEGRA
248 This adds the CPUFreq driver support for TEGRA SOCs.