xref: /openbmc/linux/drivers/cpufreq/Kconfig.arm (revision 8c37ad2f) 
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 PM_OPP
98	help
99	  This adds cpufreq driver support for Freescale i.MX6 series SoCs.
100
101	  If in doubt, say N.
102
103config ARM_IMX_CPUFREQ_DT
104	tristate "Freescale i.MX8M cpufreq support"
105	depends on ARCH_MXC && CPUFREQ_DT
106	help
107	  This adds cpufreq driver support for Freescale i.MX8M series SoCs,
108	  based on cpufreq-dt.
109
110	  If in doubt, say N.
111
112config ARM_KIRKWOOD_CPUFREQ
113	def_bool MACH_KIRKWOOD
114	help
115	  This adds the CPUFreq driver for Marvell Kirkwood
116	  SoCs.
117
118config ARM_MEDIATEK_CPUFREQ
119	tristate "CPU Frequency scaling support for MediaTek SoCs"
120	depends on ARCH_MEDIATEK && REGULATOR
121	select PM_OPP
122	help
123	  This adds the CPUFreq driver support for MediaTek SoCs.
124
125config ARM_OMAP2PLUS_CPUFREQ
126	bool "TI OMAP2+"
127	depends on ARCH_OMAP2PLUS
128	default ARCH_OMAP2PLUS
129
130config ARM_QCOM_CPUFREQ_NVMEM
131	tristate "Qualcomm nvmem based CPUFreq"
132	depends on ARCH_QCOM
133	depends on QCOM_QFPROM
134	depends on QCOM_SMEM
135	select PM_OPP
136	help
137	  This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
138
139	  If in doubt, say N.
140
141config ARM_QCOM_CPUFREQ_HW
142	tristate "QCOM CPUFreq HW driver"
143	depends on ARCH_QCOM || COMPILE_TEST
144	help
145	  Support for the CPUFreq HW driver.
146	  Some QCOM chipsets have a HW engine to offload the steps
147	  necessary for changing the frequency of the CPUs. Firmware loaded
148	  in this engine exposes a programming interface to the OS.
149	  The driver implements the cpufreq interface for this HW engine.
150	  Say Y if you want to support CPUFreq HW.
151
152config ARM_RASPBERRYPI_CPUFREQ
153	tristate "Raspberry Pi cpufreq support"
154	depends on CLK_RASPBERRYPI || COMPILE_TEST
155	help
156	  This adds the CPUFreq driver for Raspberry Pi
157
158	  If in doubt, say N.
159
160config ARM_S3C_CPUFREQ
161	bool
162	help
163	  Internal configuration node for common cpufreq on Samsung SoC
164
165config ARM_S3C24XX_CPUFREQ
166	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
167	depends on ARCH_S3C24XX
168	select ARM_S3C_CPUFREQ
169	help
170	  This enables the CPUfreq driver for the Samsung S3C24XX family
171	  of CPUs.
172
173	  For details, take a look at <file:Documentation/cpu-freq>.
174
175	  If in doubt, say N.
176
177config ARM_S3C24XX_CPUFREQ_DEBUG
178	bool "Debug CPUfreq Samsung driver core"
179	depends on ARM_S3C24XX_CPUFREQ
180	help
181	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
182
183config ARM_S3C24XX_CPUFREQ_IODEBUG
184	bool "Debug CPUfreq Samsung driver IO timing"
185	depends on ARM_S3C24XX_CPUFREQ
186	help
187	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
188
189config ARM_S3C24XX_CPUFREQ_DEBUGFS
190	bool "Export debugfs for CPUFreq"
191	depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
192	help
193	  Export status information via debugfs.
194
195config ARM_S3C2410_CPUFREQ
196	bool
197	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
198	select S3C2410_CPUFREQ_UTILS
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	select S3C2410_CPUFREQ_UTILS
236	default y
237	help
238	  CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
239
240config ARM_S3C64XX_CPUFREQ
241	bool "Samsung S3C64XX"
242	depends on CPU_S3C6410
243	default y
244	help
245	  This adds the CPUFreq driver for Samsung S3C6410 SoC.
246
247	  If in doubt, say N.
248
249config ARM_S5PV210_CPUFREQ
250	bool "Samsung S5PV210 and S5PC110"
251	depends on CPU_S5PV210
252	default y
253	help
254	  This adds the CPUFreq driver for Samsung S5PV210 and
255	  S5PC110 SoCs.
256
257	  If in doubt, say N.
258
259config ARM_SA1100_CPUFREQ
260	bool
261
262config ARM_SA1110_CPUFREQ
263	bool
264
265config ARM_SCMI_CPUFREQ
266	tristate "SCMI based CPUfreq driver"
267	depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
268	select PM_OPP
269	help
270	  This adds the CPUfreq driver support for ARM platforms using SCMI
271	  protocol for CPU power management.
272
273	  This driver uses SCMI Message Protocol driver to interact with the
274	  firmware providing the CPU DVFS functionality.
275
276config ARM_SPEAR_CPUFREQ
277	bool "SPEAr CPUFreq support"
278	depends on PLAT_SPEAR
279	default y
280	help
281	  This adds the CPUFreq driver support for SPEAr SOCs.
282
283config ARM_STI_CPUFREQ
284	tristate "STi CPUFreq support"
285	depends on SOC_STIH407
286	help
287	  This driver uses the generic OPP framework to match the running
288	  platform with a predefined set of suitable values.  If not provided
289	  we will fall-back so safe-values contained in Device Tree.  Enable
290	  this config option if you wish to add CPUFreq support for STi based
291	  SoCs.
292
293config ARM_TANGO_CPUFREQ
294	bool
295	depends on CPUFREQ_DT && ARCH_TANGO
296	default y
297
298config ARM_TEGRA20_CPUFREQ
299	tristate "Tegra20/30 CPUFreq support"
300	depends on ARCH_TEGRA && CPUFREQ_DT
301	default y
302	help
303	  This adds the CPUFreq driver support for Tegra20/30 SOCs.
304
305config ARM_TEGRA124_CPUFREQ
306	bool "Tegra124 CPUFreq support"
307	depends on ARCH_TEGRA && CPUFREQ_DT
308	default y
309	help
310	  This adds the CPUFreq driver support for Tegra124 SOCs.
311
312config ARM_TEGRA186_CPUFREQ
313	tristate "Tegra186 CPUFreq support"
314	depends on ARCH_TEGRA && TEGRA_BPMP
315	help
316	  This adds the CPUFreq driver support for Tegra186 SOCs.
317
318config ARM_TI_CPUFREQ
319	bool "Texas Instruments CPUFreq support"
320	depends on ARCH_OMAP2PLUS
321	default ARCH_OMAP2PLUS
322	help
323	  This driver enables valid OPPs on the running platform based on
324	  values contained within the SoC in use. Enable this in order to
325	  use the cpufreq-dt driver on all Texas Instruments platforms that
326	  provide dt based operating-points-v2 tables with opp-supported-hw
327	  data provided. Required for cpufreq support on AM335x, AM437x,
328	  DRA7x, and AM57x platforms.
329
330config ARM_PXA2xx_CPUFREQ
331	tristate "Intel PXA2xx CPUfreq driver"
332	depends on PXA27x || PXA25x
333	help
334	  This add the CPUFreq driver support for Intel PXA2xx SOCs.
335
336	  If in doubt, say N.
337