xref: /openbmc/linux/drivers/cpufreq/Kconfig.arm (revision 46e2856b) 
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_QCOM_CPUFREQ_KRYO
128	bool "Qualcomm Kryo based CPUFreq"
129	depends on ARM64
130	depends on QCOM_QFPROM
131	depends on QCOM_SMEM
132	select PM_OPP
133	help
134	  This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
135
136	  If in doubt, say N.
137
138config ARM_S3C_CPUFREQ
139	bool
140	help
141	  Internal configuration node for common cpufreq on Samsung SoC
142
143config ARM_S3C24XX_CPUFREQ
144	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
145	depends on ARCH_S3C24XX
146	select ARM_S3C_CPUFREQ
147	help
148	  This enables the CPUfreq driver for the Samsung S3C24XX family
149	  of CPUs.
150
151	  For details, take a look at <file:Documentation/cpu-freq>.
152
153	  If in doubt, say N.
154
155config ARM_S3C24XX_CPUFREQ_DEBUG
156	bool "Debug CPUfreq Samsung driver core"
157	depends on ARM_S3C24XX_CPUFREQ
158	help
159	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
160
161config ARM_S3C24XX_CPUFREQ_IODEBUG
162	bool "Debug CPUfreq Samsung driver IO timing"
163	depends on ARM_S3C24XX_CPUFREQ
164	help
165	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
166
167config ARM_S3C24XX_CPUFREQ_DEBUGFS
168	bool "Export debugfs for CPUFreq"
169	depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
170	help
171	  Export status information via debugfs.
172
173config ARM_S3C2410_CPUFREQ
174	bool
175	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
176	select S3C2410_CPUFREQ_UTILS
177	help
178	  CPU Frequency scaling support for S3C2410
179
180config ARM_S3C2412_CPUFREQ
181	bool
182	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
183	default y
184	select S3C2412_IOTIMING
185	help
186	  CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
187
188config ARM_S3C2416_CPUFREQ
189	bool "S3C2416 CPU Frequency scaling support"
190	depends on CPU_S3C2416
191	help
192	  This adds the CPUFreq driver for the Samsung S3C2416 and
193	  S3C2450 SoC. The S3C2416 supports changing the rate of the
194	  armdiv clock source and also entering a so called dynamic
195	  voltage scaling mode in which it is possible to reduce the
196	  core voltage of the CPU.
197
198	  If in doubt, say N.
199
200config ARM_S3C2416_CPUFREQ_VCORESCALE
201	bool "Allow voltage scaling for S3C2416 arm core"
202	depends on ARM_S3C2416_CPUFREQ && REGULATOR
203	help
204	  Enable CPU voltage scaling when entering the dvs mode.
205	  It uses information gathered through existing hardware and
206	  tests but not documented in any datasheet.
207
208	  If in doubt, say N.
209
210config ARM_S3C2440_CPUFREQ
211	bool "S3C2440/S3C2442 CPU Frequency scaling support"
212	depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
213	select S3C2410_CPUFREQ_UTILS
214	default y
215	help
216	  CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
217
218config ARM_S3C64XX_CPUFREQ
219	bool "Samsung S3C64XX"
220	depends on CPU_S3C6410
221	default y
222	help
223	  This adds the CPUFreq driver for Samsung S3C6410 SoC.
224
225	  If in doubt, say N.
226
227config ARM_S5PV210_CPUFREQ
228	bool "Samsung S5PV210 and S5PC110"
229	depends on CPU_S5PV210
230	default y
231	help
232	  This adds the CPUFreq driver for Samsung S5PV210 and
233	  S5PC110 SoCs.
234
235	  If in doubt, say N.
236
237config ARM_SA1100_CPUFREQ
238	bool
239
240config ARM_SA1110_CPUFREQ
241	bool
242
243config ARM_SCMI_CPUFREQ
244	tristate "SCMI based CPUfreq driver"
245	depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
246	depends on !CPU_THERMAL || THERMAL
247	select PM_OPP
248	help
249	  This adds the CPUfreq driver support for ARM platforms using SCMI
250	  protocol for CPU power management.
251
252	  This driver uses SCMI Message Protocol driver to interact with the
253	  firmware providing the CPU DVFS functionality.
254
255config ARM_SPEAR_CPUFREQ
256	bool "SPEAr CPUFreq support"
257	depends on PLAT_SPEAR
258	default y
259	help
260	  This adds the CPUFreq driver support for SPEAr SOCs.
261
262config ARM_STI_CPUFREQ
263	tristate "STi CPUFreq support"
264	depends on SOC_STIH407
265	help
266	  This driver uses the generic OPP framework to match the running
267	  platform with a predefined set of suitable values.  If not provided
268	  we will fall-back so safe-values contained in Device Tree.  Enable
269	  this config option if you wish to add CPUFreq support for STi based
270	  SoCs.
271
272config ARM_TANGO_CPUFREQ
273	bool
274	depends on CPUFREQ_DT && ARCH_TANGO
275	default y
276
277config ARM_TEGRA20_CPUFREQ
278	tristate "Tegra20 CPUFreq support"
279	depends on ARCH_TEGRA
280	default y
281	help
282	  This adds the CPUFreq driver support for Tegra20 SOCs.
283
284config ARM_TEGRA124_CPUFREQ
285	tristate "Tegra124 CPUFreq support"
286	depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR
287	default y
288	help
289	  This adds the CPUFreq driver support for Tegra124 SOCs.
290
291config ARM_TEGRA186_CPUFREQ
292	tristate "Tegra186 CPUFreq support"
293	depends on ARCH_TEGRA && TEGRA_BPMP
294	help
295	  This adds the CPUFreq driver support for Tegra186 SOCs.
296
297config ARM_TI_CPUFREQ
298	bool "Texas Instruments CPUFreq support"
299	depends on ARCH_OMAP2PLUS
300	help
301	  This driver enables valid OPPs on the running platform based on
302	  values contained within the SoC in use. Enable this in order to
303	  use the cpufreq-dt driver on all Texas Instruments platforms that
304	  provide dt based operating-points-v2 tables with opp-supported-hw
305	  data provided. Required for cpufreq support on AM335x, AM437x,
306	  DRA7x, and AM57x platforms.
307
308config ARM_PXA2xx_CPUFREQ
309	tristate "Intel PXA2xx CPUfreq driver"
310	depends on PXA27x || PXA25x
311	help
312	  This add the CPUFreq driver support for Intel PXA2xx SOCs.
313
314	  If in doubt, say N.
315