xref: /openbmc/linux/drivers/cpufreq/Kconfig.arm (revision 29c37341) 
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	select NVMEM_IMX_OCOTP
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	select S3C2410_CPUFREQ_UTILS
200	help
201	  CPU Frequency scaling support for S3C2410
202
203config ARM_S3C2412_CPUFREQ
204	bool
205	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
206	default y
207	select S3C2412_IOTIMING
208	help
209	  CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
210
211config ARM_S3C2416_CPUFREQ
212	bool "S3C2416 CPU Frequency scaling support"
213	depends on CPU_S3C2416
214	help
215	  This adds the CPUFreq driver for the Samsung S3C2416 and
216	  S3C2450 SoC. The S3C2416 supports changing the rate of the
217	  armdiv clock source and also entering a so called dynamic
218	  voltage scaling mode in which it is possible to reduce the
219	  core voltage of the CPU.
220
221	  If in doubt, say N.
222
223config ARM_S3C2416_CPUFREQ_VCORESCALE
224	bool "Allow voltage scaling for S3C2416 arm core"
225	depends on ARM_S3C2416_CPUFREQ && REGULATOR
226	help
227	  Enable CPU voltage scaling when entering the dvs mode.
228	  It uses information gathered through existing hardware and
229	  tests but not documented in any datasheet.
230
231	  If in doubt, say N.
232
233config ARM_S3C2440_CPUFREQ
234	bool "S3C2440/S3C2442 CPU Frequency scaling support"
235	depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
236	select S3C2410_CPUFREQ_UTILS
237	default y
238	help
239	  CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
240
241config ARM_S3C64XX_CPUFREQ
242	bool "Samsung S3C64XX"
243	depends on CPU_S3C6410
244	default y
245	help
246	  This adds the CPUFreq driver for Samsung S3C6410 SoC.
247
248	  If in doubt, say N.
249
250config ARM_S5PV210_CPUFREQ
251	bool "Samsung S5PV210 and S5PC110"
252	depends on CPU_S5PV210
253	default y
254	help
255	  This adds the CPUFreq driver for Samsung S5PV210 and
256	  S5PC110 SoCs.
257
258	  If in doubt, say N.
259
260config ARM_SA1100_CPUFREQ
261	bool
262
263config ARM_SA1110_CPUFREQ
264	bool
265
266config ARM_SCMI_CPUFREQ
267	tristate "SCMI based CPUfreq driver"
268	depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
269	select PM_OPP
270	help
271	  This adds the CPUfreq driver support for ARM platforms using SCMI
272	  protocol for CPU power management.
273
274	  This driver uses SCMI Message Protocol driver to interact with the
275	  firmware providing the CPU DVFS functionality.
276
277config ARM_SPEAR_CPUFREQ
278	bool "SPEAr CPUFreq support"
279	depends on PLAT_SPEAR
280	default y
281	help
282	  This adds the CPUFreq driver support for SPEAr SOCs.
283
284config ARM_STI_CPUFREQ
285	tristate "STi CPUFreq support"
286	depends on SOC_STIH407
287	help
288	  This driver uses the generic OPP framework to match the running
289	  platform with a predefined set of suitable values.  If not provided
290	  we will fall-back so safe-values contained in Device Tree.  Enable
291	  this config option if you wish to add CPUFreq support for STi based
292	  SoCs.
293
294config ARM_TANGO_CPUFREQ
295	bool
296	depends on CPUFREQ_DT && ARCH_TANGO
297	default y
298
299config ARM_TEGRA20_CPUFREQ
300	tristate "Tegra20/30 CPUFreq support"
301	depends on ARCH_TEGRA && CPUFREQ_DT
302	default y
303	help
304	  This adds the CPUFreq driver support for Tegra20/30 SOCs.
305
306config ARM_TEGRA124_CPUFREQ
307	bool "Tegra124 CPUFreq support"
308	depends on ARCH_TEGRA && CPUFREQ_DT
309	default y
310	help
311	  This adds the CPUFreq driver support for Tegra124 SOCs.
312
313config ARM_TEGRA186_CPUFREQ
314	tristate "Tegra186 CPUFreq support"
315	depends on ARCH_TEGRA && TEGRA_BPMP
316	help
317	  This adds the CPUFreq driver support for Tegra186 SOCs.
318
319config ARM_TEGRA194_CPUFREQ
320	tristate "Tegra194 CPUFreq support"
321	depends on ARCH_TEGRA_194_SOC && TEGRA_BPMP
322	default y
323	help
324	  This adds CPU frequency driver support for Tegra194 SOCs.
325
326config ARM_TI_CPUFREQ
327	bool "Texas Instruments CPUFreq support"
328	depends on ARCH_OMAP2PLUS
329	default ARCH_OMAP2PLUS
330	help
331	  This driver enables valid OPPs on the running platform based on
332	  values contained within the SoC in use. Enable this in order to
333	  use the cpufreq-dt driver on all Texas Instruments platforms that
334	  provide dt based operating-points-v2 tables with opp-supported-hw
335	  data provided. Required for cpufreq support on AM335x, AM437x,
336	  DRA7x, and AM57x platforms.
337
338config ARM_PXA2xx_CPUFREQ
339	tristate "Intel PXA2xx CPUfreq driver"
340	depends on PXA27x || PXA25x
341	help
342	  This add the CPUFreq driver support for Intel PXA2xx SOCs.
343
344	  If in doubt, say N.
345