xref: /openbmc/linux/drivers/cpufreq/Kconfig.arm (revision b4e18b29) 
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# ARM CPU Frequency scaling drivers
4#
5
6config ACPI_CPPC_CPUFREQ
7	tristate "CPUFreq driver based on the ACPI CPPC spec"
8	depends on ACPI_PROCESSOR
9	select ACPI_CPPC_LIB
10	help
11	  This adds a CPUFreq driver which uses CPPC methods
12	  as described in the ACPIv5.1 spec. CPPC stands for
13	  Collaborative Processor Performance Controls. It
14	  is based on an abstract continuous scale of CPU
15	  performance values which allows the remote power
16	  processor to flexibly optimize for power and
17	  performance. CPPC relies on power management firmware
18	  support for its operation.
19
20	  If in doubt, say N.
21
22config ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM
23	tristate "Allwinner nvmem based SUN50I CPUFreq driver"
24	depends on ARCH_SUNXI
25	depends on NVMEM_SUNXI_SID
26	select PM_OPP
27	help
28	  This adds the nvmem based CPUFreq driver for Allwinner
29	  h6 SoC.
30
31	  To compile this driver as a module, choose M here: the
32	  module will be called sun50i-cpufreq-nvmem.
33
34config ARM_ARMADA_37XX_CPUFREQ
35	tristate "Armada 37xx CPUFreq support"
36	depends on ARCH_MVEBU && CPUFREQ_DT
37	help
38	  This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
39	  The Armada 37xx PMU supports 4 frequency and VDD levels.
40
41config ARM_ARMADA_8K_CPUFREQ
42	tristate "Armada 8K CPUFreq driver"
43	depends on ARCH_MVEBU && CPUFREQ_DT
44	select ARMADA_AP_CPU_CLK
45	help
46	  This enables the CPUFreq driver support for Marvell
47	  Armada8k SOCs.
48	  Armada8K device has the AP806 which supports scaling
49	  to any full integer divider.
50
51	  If in doubt, say N.
52
53config ARM_SCPI_CPUFREQ
54	tristate "SCPI based CPUfreq driver"
55	depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
56	help
57	  This adds the CPUfreq driver support for ARM platforms using SCPI
58	  protocol for CPU power management.
59
60	  This driver uses SCPI Message Protocol driver to interact with the
61	  firmware providing the CPU DVFS functionality.
62
63config ARM_VEXPRESS_SPC_CPUFREQ
64	tristate "Versatile Express SPC based CPUfreq driver"
65	depends on ARM_CPU_TOPOLOGY && HAVE_CLK
66	depends on ARCH_VEXPRESS_SPC
67	select PM_OPP
68	help
69	  This add the CPUfreq driver support for Versatile Express
70	  big.LITTLE platforms using SPC for power management.
71
72config ARM_BRCMSTB_AVS_CPUFREQ
73	tristate "Broadcom STB AVS CPUfreq driver"
74	depends on ARCH_BRCMSTB || COMPILE_TEST
75	default y
76	help
77	  Some Broadcom STB SoCs use a co-processor running proprietary firmware
78	  ("AVS") to handle voltage and frequency scaling. This driver provides
79	  a standard CPUfreq interface to to the firmware.
80
81	  Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
82
83config ARM_HIGHBANK_CPUFREQ
84	tristate "Calxeda Highbank-based"
85	depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
86	default m
87	help
88	  This adds the CPUFreq driver for Calxeda Highbank SoC
89	  based boards.
90
91	  If in doubt, say N.
92
93config ARM_IMX6Q_CPUFREQ
94	tristate "Freescale i.MX6 cpufreq support"
95	depends on ARCH_MXC
96	depends on REGULATOR_ANATOP
97	depends on NVMEM_IMX_OCOTP || COMPILE_TEST
98	select PM_OPP
99	help
100	  This adds cpufreq driver support for Freescale i.MX6 series SoCs.
101
102	  If in doubt, say N.
103
104config ARM_IMX_CPUFREQ_DT
105	tristate "Freescale i.MX8M cpufreq support"
106	depends on ARCH_MXC && CPUFREQ_DT
107	help
108	  This adds cpufreq driver support for Freescale i.MX8M series SoCs,
109	  based on cpufreq-dt.
110
111	  If in doubt, say N.
112
113config ARM_KIRKWOOD_CPUFREQ
114	def_bool MACH_KIRKWOOD
115	help
116	  This adds the CPUFreq driver for Marvell Kirkwood
117	  SoCs.
118
119config ARM_MEDIATEK_CPUFREQ
120	tristate "CPU Frequency scaling support for MediaTek SoCs"
121	depends on ARCH_MEDIATEK && REGULATOR
122	select PM_OPP
123	help
124	  This adds the CPUFreq driver support for MediaTek SoCs.
125
126config ARM_OMAP2PLUS_CPUFREQ
127	bool "TI OMAP2+"
128	depends on ARCH_OMAP2PLUS
129	default ARCH_OMAP2PLUS
130
131config ARM_QCOM_CPUFREQ_NVMEM
132	tristate "Qualcomm nvmem based CPUFreq"
133	depends on ARCH_QCOM
134	depends on QCOM_QFPROM
135	depends on QCOM_SMEM
136	select PM_OPP
137	help
138	  This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
139
140	  If in doubt, say N.
141
142config ARM_QCOM_CPUFREQ_HW
143	tristate "QCOM CPUFreq HW driver"
144	depends on ARCH_QCOM || COMPILE_TEST
145	help
146	  Support for the CPUFreq HW driver.
147	  Some QCOM chipsets have a HW engine to offload the steps
148	  necessary for changing the frequency of the CPUs. Firmware loaded
149	  in this engine exposes a programming interface to the OS.
150	  The driver implements the cpufreq interface for this HW engine.
151	  Say Y if you want to support CPUFreq HW.
152
153config ARM_RASPBERRYPI_CPUFREQ
154	tristate "Raspberry Pi cpufreq support"
155	depends on CLK_RASPBERRYPI || COMPILE_TEST
156	help
157	  This adds the CPUFreq driver for Raspberry Pi
158
159	  If in doubt, say N.
160
161config ARM_S3C_CPUFREQ
162	bool
163	help
164	  Internal configuration node for common cpufreq on Samsung SoC
165
166config ARM_S3C24XX_CPUFREQ
167	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
168	depends on ARCH_S3C24XX
169	select ARM_S3C_CPUFREQ
170	help
171	  This enables the CPUfreq driver for the Samsung S3C24XX family
172	  of CPUs.
173
174	  For details, take a look at <file:Documentation/cpu-freq>.
175
176	  If in doubt, say N.
177
178config ARM_S3C24XX_CPUFREQ_DEBUG
179	bool "Debug CPUfreq Samsung driver core"
180	depends on ARM_S3C24XX_CPUFREQ
181	help
182	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
183
184config ARM_S3C24XX_CPUFREQ_IODEBUG
185	bool "Debug CPUfreq Samsung driver IO timing"
186	depends on ARM_S3C24XX_CPUFREQ
187	help
188	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
189
190config ARM_S3C24XX_CPUFREQ_DEBUGFS
191	bool "Export debugfs for CPUFreq"
192	depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
193	help
194	  Export status information via debugfs.
195
196config ARM_S3C2410_CPUFREQ
197	bool
198	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
199	help
200	  CPU Frequency scaling support for S3C2410
201
202config ARM_S3C2412_CPUFREQ
203	bool
204	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
205	default y
206	select S3C2412_IOTIMING
207	help
208	  CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
209
210config ARM_S3C2416_CPUFREQ
211	bool "S3C2416 CPU Frequency scaling support"
212	depends on CPU_S3C2416
213	help
214	  This adds the CPUFreq driver for the Samsung S3C2416 and
215	  S3C2450 SoC. The S3C2416 supports changing the rate of the
216	  armdiv clock source and also entering a so called dynamic
217	  voltage scaling mode in which it is possible to reduce the
218	  core voltage of the CPU.
219
220	  If in doubt, say N.
221
222config ARM_S3C2416_CPUFREQ_VCORESCALE
223	bool "Allow voltage scaling for S3C2416 arm core"
224	depends on ARM_S3C2416_CPUFREQ && REGULATOR
225	help
226	  Enable CPU voltage scaling when entering the dvs mode.
227	  It uses information gathered through existing hardware and
228	  tests but not documented in any datasheet.
229
230	  If in doubt, say N.
231
232config ARM_S3C2440_CPUFREQ
233	bool "S3C2440/S3C2442 CPU Frequency scaling support"
234	depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
235	default y
236	help
237	  CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
238
239config ARM_S3C64XX_CPUFREQ
240	bool "Samsung S3C64XX"
241	depends on CPU_S3C6410
242	default y
243	help
244	  This adds the CPUFreq driver for Samsung S3C6410 SoC.
245
246	  If in doubt, say N.
247
248config ARM_S5PV210_CPUFREQ
249	bool "Samsung S5PV210 and S5PC110"
250	depends on CPU_S5PV210
251	default y
252	help
253	  This adds the CPUFreq driver for Samsung S5PV210 and
254	  S5PC110 SoCs.
255
256	  If in doubt, say N.
257
258config ARM_SA1100_CPUFREQ
259	bool
260
261config ARM_SA1110_CPUFREQ
262	bool
263
264config ARM_SCMI_CPUFREQ
265	tristate "SCMI based CPUfreq driver"
266	depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
267	select PM_OPP
268	help
269	  This adds the CPUfreq driver support for ARM platforms using SCMI
270	  protocol for CPU power management.
271
272	  This driver uses SCMI Message Protocol driver to interact with the
273	  firmware providing the CPU DVFS functionality.
274
275config ARM_SPEAR_CPUFREQ
276	bool "SPEAr CPUFreq support"
277	depends on PLAT_SPEAR
278	default y
279	help
280	  This adds the CPUFreq driver support for SPEAr SOCs.
281
282config ARM_STI_CPUFREQ
283	tristate "STi CPUFreq support"
284	depends on CPUFREQ_DT && SOC_STIH407
285	help
286	  This driver uses the generic OPP framework to match the running
287	  platform with a predefined set of suitable values.  If not provided
288	  we will fall-back so safe-values contained in Device Tree.  Enable
289	  this config option if you wish to add CPUFreq support for STi based
290	  SoCs.
291
292config ARM_TANGO_CPUFREQ
293	bool
294	depends on CPUFREQ_DT && ARCH_TANGO
295	default y
296
297config ARM_TEGRA20_CPUFREQ
298	tristate "Tegra20/30 CPUFreq support"
299	depends on ARCH_TEGRA && CPUFREQ_DT
300	default y
301	help
302	  This adds the CPUFreq driver support for Tegra20/30 SOCs.
303
304config ARM_TEGRA124_CPUFREQ
305	bool "Tegra124 CPUFreq support"
306	depends on ARCH_TEGRA && CPUFREQ_DT
307	default y
308	help
309	  This adds the CPUFreq driver support for Tegra124 SOCs.
310
311config ARM_TEGRA186_CPUFREQ
312	tristate "Tegra186 CPUFreq support"
313	depends on ARCH_TEGRA && TEGRA_BPMP
314	help
315	  This adds the CPUFreq driver support for Tegra186 SOCs.
316
317config ARM_TEGRA194_CPUFREQ
318	tristate "Tegra194 CPUFreq support"
319	depends on ARCH_TEGRA_194_SOC && TEGRA_BPMP
320	default y
321	help
322	  This adds CPU frequency driver support for Tegra194 SOCs.
323
324config ARM_TI_CPUFREQ
325	bool "Texas Instruments CPUFreq support"
326	depends on ARCH_OMAP2PLUS
327	default ARCH_OMAP2PLUS
328	help
329	  This driver enables valid OPPs on the running platform based on
330	  values contained within the SoC in use. Enable this in order to
331	  use the cpufreq-dt driver on all Texas Instruments platforms that
332	  provide dt based operating-points-v2 tables with opp-supported-hw
333	  data provided. Required for cpufreq support on AM335x, AM437x,
334	  DRA7x, and AM57x platforms.
335
336config ARM_PXA2xx_CPUFREQ
337	tristate "Intel PXA2xx CPUfreq driver"
338	depends on PXA27x || PXA25x
339	help
340	  This add the CPUFreq driver support for Intel PXA2xx SOCs.
341
342	  If in doubt, say N.
343