xref: /openbmc/linux/drivers/cpufreq/Kconfig.arm (revision 0cf442c6) 
1#
2# ARM CPU Frequency scaling drivers
3#
4
5config 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
21config 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
29config ARM_BIG_LITTLE_CPUFREQ
30	tristate "Generic ARM big LITTLE CPUfreq driver"
31	depends on (ARM_CPU_TOPOLOGY || ARM64) && 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
38config ARM_DT_BL_CPUFREQ
39	tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
40	depends on ARM_BIG_LITTLE_CPUFREQ && OF
41	help
42	  This enables probing via DT for Generic CPUfreq driver for ARM
43	  big.LITTLE platform. This gets frequency tables from DT.
44
45config ARM_SCPI_CPUFREQ
46	tristate "SCPI based CPUfreq driver"
47	depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
48	depends on !CPU_THERMAL || THERMAL
49	help
50	  This adds the CPUfreq driver support for ARM platforms using SCPI
51	  protocol for CPU power management.
52
53	  This driver uses SCPI Message Protocol driver to interact with the
54	  firmware providing the CPU DVFS functionality.
55
56config ARM_VEXPRESS_SPC_CPUFREQ
57	tristate "Versatile Express SPC based CPUfreq driver"
58	depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
59	help
60	  This add the CPUfreq driver support for Versatile Express
61	  big.LITTLE platforms using SPC for power management.
62
63config ARM_BRCMSTB_AVS_CPUFREQ
64	tristate "Broadcom STB AVS CPUfreq driver"
65	depends on ARCH_BRCMSTB || COMPILE_TEST
66	default y
67	help
68	  Some Broadcom STB SoCs use a co-processor running proprietary firmware
69	  ("AVS") to handle voltage and frequency scaling. This driver provides
70	  a standard CPUfreq interface to to the firmware.
71
72	  Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
73
74config ARM_EXYNOS5440_CPUFREQ
75	tristate "SAMSUNG EXYNOS5440"
76	depends on SOC_EXYNOS5440
77	depends on HAVE_CLK && OF
78	select PM_OPP
79	default y
80	help
81	  This adds the CPUFreq driver for Samsung EXYNOS5440
82	  SoC. The nature of exynos5440 clock controller is
83	  different than previous exynos controllers so not using
84	  the common exynos framework.
85
86	  If in doubt, say N.
87
88config ARM_HIGHBANK_CPUFREQ
89	tristate "Calxeda Highbank-based"
90	depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
91	default m
92	help
93	  This adds the CPUFreq driver for Calxeda Highbank SoC
94	  based boards.
95
96	  If in doubt, say N.
97
98config ARM_IMX6Q_CPUFREQ
99	tristate "Freescale i.MX6 cpufreq support"
100	depends on ARCH_MXC
101	depends on REGULATOR_ANATOP
102	select PM_OPP
103	help
104	  This adds cpufreq driver support for Freescale i.MX6 series SoCs.
105
106	  If in doubt, say N.
107
108config ARM_KIRKWOOD_CPUFREQ
109	def_bool MACH_KIRKWOOD
110	help
111	  This adds the CPUFreq driver for Marvell Kirkwood
112	  SoCs.
113
114config ARM_MEDIATEK_CPUFREQ
115	tristate "CPU Frequency scaling support for MediaTek SoCs"
116	depends on ARCH_MEDIATEK && REGULATOR
117	depends on !CPU_THERMAL || THERMAL
118	select PM_OPP
119	help
120	  This adds the CPUFreq driver support for MediaTek SoCs.
121
122config ARM_OMAP2PLUS_CPUFREQ
123	bool "TI OMAP2+"
124	depends on ARCH_OMAP2PLUS
125	default ARCH_OMAP2PLUS
126
127config ARM_S3C_CPUFREQ
128	bool
129	help
130	  Internal configuration node for common cpufreq on Samsung SoC
131
132config ARM_S3C24XX_CPUFREQ
133	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
134	depends on ARCH_S3C24XX
135	select ARM_S3C_CPUFREQ
136	help
137	  This enables the CPUfreq driver for the Samsung S3C24XX family
138	  of CPUs.
139
140	  For details, take a look at <file:Documentation/cpu-freq>.
141
142	  If in doubt, say N.
143
144config ARM_S3C24XX_CPUFREQ_DEBUG
145	bool "Debug CPUfreq Samsung driver core"
146	depends on ARM_S3C24XX_CPUFREQ
147	help
148	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
149
150config ARM_S3C24XX_CPUFREQ_IODEBUG
151	bool "Debug CPUfreq Samsung driver IO timing"
152	depends on ARM_S3C24XX_CPUFREQ
153	help
154	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
155
156config ARM_S3C24XX_CPUFREQ_DEBUGFS
157	bool "Export debugfs for CPUFreq"
158	depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
159	help
160	  Export status information via debugfs.
161
162config ARM_S3C2410_CPUFREQ
163	bool
164	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
165	select S3C2410_CPUFREQ_UTILS
166	help
167	  CPU Frequency scaling support for S3C2410
168
169config ARM_S3C2412_CPUFREQ
170	bool
171	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
172	default y
173	select S3C2412_IOTIMING
174	help
175	  CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
176
177config ARM_S3C2416_CPUFREQ
178	bool "S3C2416 CPU Frequency scaling support"
179	depends on CPU_S3C2416
180	help
181	  This adds the CPUFreq driver for the Samsung S3C2416 and
182	  S3C2450 SoC. The S3C2416 supports changing the rate of the
183	  armdiv clock source and also entering a so called dynamic
184	  voltage scaling mode in which it is possible to reduce the
185	  core voltage of the CPU.
186
187	  If in doubt, say N.
188
189config ARM_S3C2416_CPUFREQ_VCORESCALE
190	bool "Allow voltage scaling for S3C2416 arm core"
191	depends on ARM_S3C2416_CPUFREQ && REGULATOR
192	help
193	  Enable CPU voltage scaling when entering the dvs mode.
194	  It uses information gathered through existing hardware and
195	  tests but not documented in any datasheet.
196
197	  If in doubt, say N.
198
199config ARM_S3C2440_CPUFREQ
200	bool "S3C2440/S3C2442 CPU Frequency scaling support"
201	depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
202	select S3C2410_CPUFREQ_UTILS
203	default y
204	help
205	  CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
206
207config ARM_S3C64XX_CPUFREQ
208	bool "Samsung S3C64XX"
209	depends on CPU_S3C6410
210	default y
211	help
212	  This adds the CPUFreq driver for Samsung S3C6410 SoC.
213
214	  If in doubt, say N.
215
216config ARM_S5PV210_CPUFREQ
217	bool "Samsung S5PV210 and S5PC110"
218	depends on CPU_S5PV210
219	default y
220	help
221	  This adds the CPUFreq driver for Samsung S5PV210 and
222	  S5PC110 SoCs.
223
224	  If in doubt, say N.
225
226config ARM_SA1100_CPUFREQ
227	bool
228
229config ARM_SA1110_CPUFREQ
230	bool
231
232config ARM_SCMI_CPUFREQ
233	tristate "SCMI based CPUfreq driver"
234	depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
235	depends on !CPU_THERMAL || THERMAL
236	select PM_OPP
237	help
238	  This adds the CPUfreq driver support for ARM platforms using SCMI
239	  protocol for CPU power management.
240
241	  This driver uses SCMI Message Protocol driver to interact with the
242	  firmware providing the CPU DVFS functionality.
243
244config ARM_SPEAR_CPUFREQ
245	bool "SPEAr CPUFreq support"
246	depends on PLAT_SPEAR
247	default y
248	help
249	  This adds the CPUFreq driver support for SPEAr SOCs.
250
251config ARM_STI_CPUFREQ
252	tristate "STi CPUFreq support"
253	depends on SOC_STIH407
254	help
255	  This driver uses the generic OPP framework to match the running
256	  platform with a predefined set of suitable values.  If not provided
257	  we will fall-back so safe-values contained in Device Tree.  Enable
258	  this config option if you wish to add CPUFreq support for STi based
259	  SoCs.
260
261config ARM_TANGO_CPUFREQ
262	bool
263	depends on CPUFREQ_DT && ARCH_TANGO
264	default y
265
266config ARM_TEGRA20_CPUFREQ
267	bool "Tegra20 CPUFreq support"
268	depends on ARCH_TEGRA
269	default y
270	help
271	  This adds the CPUFreq driver support for Tegra20 SOCs.
272
273config ARM_TEGRA124_CPUFREQ
274	tristate "Tegra124 CPUFreq support"
275	depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
276	default y
277	help
278	  This adds the CPUFreq driver support for Tegra124 SOCs.
279
280config ARM_TEGRA186_CPUFREQ
281	tristate "Tegra186 CPUFreq support"
282	depends on ARCH_TEGRA && TEGRA_BPMP
283	help
284	  This adds the CPUFreq driver support for Tegra186 SOCs.
285
286config ARM_TI_CPUFREQ
287	bool "Texas Instruments CPUFreq support"
288	depends on ARCH_OMAP2PLUS
289	help
290	  This driver enables valid OPPs on the running platform based on
291	  values contained within the SoC in use. Enable this in order to
292	  use the cpufreq-dt driver on all Texas Instruments platforms that
293	  provide dt based operating-points-v2 tables with opp-supported-hw
294	  data provided. Required for cpufreq support on AM335x, AM437x,
295	  DRA7x, and AM57x platforms.
296
297config ARM_PXA2xx_CPUFREQ
298	tristate "Intel PXA2xx CPUfreq driver"
299	depends on PXA27x || PXA25x
300	help
301	  This add the CPUFreq driver support for Intel PXA2xx SOCs.
302
303	  If in doubt, say N.
304