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 reguires, for safe operation, thermal framework with properly
93 config ARM_HIGHBANK_CPUFREQ
94 tristate "Calxeda Highbank-based"
95 depends on ARCH_HIGHBANK
96 select GENERIC_CPUFREQ_CPU0
102 This adds the CPUFreq driver for Calxeda Highbank SoC
107 config ARM_IMX6Q_CPUFREQ
108 tristate "Freescale i.MX6 cpufreq support"
110 depends on REGULATOR_ANATOP
112 This adds cpufreq driver support for Freescale i.MX6 series SoCs.
116 config ARM_INTEGRATOR
117 tristate "CPUfreq driver for ARM Integrator CPUs"
118 depends on ARCH_INTEGRATOR
121 This enables the CPUfreq driver for ARM Integrator CPUs.
124 config ARM_KIRKWOOD_CPUFREQ
125 def_bool MACH_KIRKWOOD
127 This adds the CPUFreq driver for Marvell Kirkwood
130 config ARM_OMAP2PLUS_CPUFREQ
132 depends on ARCH_OMAP2PLUS
133 default ARCH_OMAP2PLUS
135 config ARM_S3C_CPUFREQ
138 Internal configuration node for common cpufreq on Samsung SoC
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
145 This enables the CPUfreq driver for the Samsung S3C24XX family
148 For details, take a look at <file:Documentation/cpu-freq>.
152 config ARM_S3C24XX_CPUFREQ_DEBUG
153 bool "Debug CPUfreq Samsung driver core"
154 depends on ARM_S3C24XX_CPUFREQ
156 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
158 config ARM_S3C24XX_CPUFREQ_IODEBUG
159 bool "Debug CPUfreq Samsung driver IO timing"
160 depends on ARM_S3C24XX_CPUFREQ
162 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
164 config ARM_S3C24XX_CPUFREQ_DEBUGFS
165 bool "Export debugfs for CPUFreq"
166 depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
168 Export status information via debugfs.
170 config ARM_S3C2410_CPUFREQ
172 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
173 select S3C2410_CPUFREQ_UTILS
175 CPU Frequency scaling support for S3C2410
177 config ARM_S3C2412_CPUFREQ
179 depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
181 select S3C2412_IOTIMING
183 CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
185 config ARM_S3C2416_CPUFREQ
186 bool "S3C2416 CPU Frequency scaling support"
187 depends on CPU_S3C2416
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.
197 config ARM_S3C2416_CPUFREQ_VCORESCALE
198 bool "Allow voltage scaling for S3C2416 arm core"
199 depends on ARM_S3C2416_CPUFREQ && REGULATOR
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.
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
213 CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
215 config ARM_S3C64XX_CPUFREQ
216 bool "Samsung S3C64XX"
217 depends on CPU_S3C6410
220 This adds the CPUFreq driver for Samsung S3C6410 SoC.
224 config ARM_S5PV210_CPUFREQ
225 bool "Samsung S5PV210 and S5PC110"
226 depends on CPU_S5PV210
229 This adds the CPUFreq driver for Samsung S5PV210 and
234 config ARM_SA1100_CPUFREQ
237 config ARM_SA1110_CPUFREQ
240 config ARM_SPEAR_CPUFREQ
241 bool "SPEAr CPUFreq support"
242 depends on PLAT_SPEAR
245 This adds the CPUFreq driver support for SPEAr SOCs.
247 config ARM_TEGRA_CPUFREQ
248 bool "TEGRA CPUFreq support"
249 depends on ARCH_TEGRA
252 This adds the CPUFreq driver support for TEGRA SOCs.