xref: /openbmc/linux/drivers/cpufreq/Kconfig.arm (revision 8e8e69d6) 
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_ARMADA_37XX_CPUFREQ
23	tristate "Armada 37xx CPUFreq support"
24	depends on ARCH_MVEBU && CPUFREQ_DT
25	help
26	  This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
27	  The Armada 37xx PMU supports 4 frequency and VDD levels.
28
29config ARM_ARMADA_8K_CPUFREQ
30	tristate "Armada 8K CPUFreq driver"
31	depends on ARCH_MVEBU && CPUFREQ_DT
32	help
33	  This enables the CPUFreq driver support for Marvell
34	  Armada8k SOCs.
35	  Armada8K device has the AP806 which supports scaling
36	  to any full integer divider.
37
38	  If in doubt, say N.
39
40# big LITTLE core layer and glue drivers
41config ARM_BIG_LITTLE_CPUFREQ
42	tristate "Generic ARM big LITTLE CPUfreq driver"
43	depends on ARM_CPU_TOPOLOGY && HAVE_CLK
44	select PM_OPP
45	help
46	  This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
47
48config ARM_SCPI_CPUFREQ
49	tristate "SCPI based CPUfreq driver"
50	depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
51	help
52	  This adds the CPUfreq driver support for ARM platforms using SCPI
53	  protocol for CPU power management.
54
55	  This driver uses SCPI Message Protocol driver to interact with the
56	  firmware providing the CPU DVFS functionality.
57
58config ARM_VEXPRESS_SPC_CPUFREQ
59	tristate "Versatile Express SPC based CPUfreq driver"
60	depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
61	help
62	  This add the CPUfreq driver support for Versatile Express
63	  big.LITTLE platforms using SPC for power management.
64
65config ARM_BRCMSTB_AVS_CPUFREQ
66	tristate "Broadcom STB AVS CPUfreq driver"
67	depends on ARCH_BRCMSTB || COMPILE_TEST
68	default y
69	help
70	  Some Broadcom STB SoCs use a co-processor running proprietary firmware
71	  ("AVS") to handle voltage and frequency scaling. This driver provides
72	  a standard CPUfreq interface to to the firmware.
73
74	  Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
75
76config ARM_HIGHBANK_CPUFREQ
77	tristate "Calxeda Highbank-based"
78	depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
79	default m
80	help
81	  This adds the CPUFreq driver for Calxeda Highbank SoC
82	  based boards.
83
84	  If in doubt, say N.
85
86config ARM_IMX6Q_CPUFREQ
87	tristate "Freescale i.MX6 cpufreq support"
88	depends on ARCH_MXC
89	depends on REGULATOR_ANATOP
90	select PM_OPP
91	help
92	  This adds cpufreq driver support for Freescale i.MX6 series SoCs.
93
94	  If in doubt, say N.
95
96config ARM_KIRKWOOD_CPUFREQ
97	def_bool MACH_KIRKWOOD
98	help
99	  This adds the CPUFreq driver for Marvell Kirkwood
100	  SoCs.
101
102config ARM_MEDIATEK_CPUFREQ
103	tristate "CPU Frequency scaling support for MediaTek SoCs"
104	depends on ARCH_MEDIATEK && REGULATOR
105	select PM_OPP
106	help
107	  This adds the CPUFreq driver support for MediaTek SoCs.
108
109config ARM_OMAP2PLUS_CPUFREQ
110	bool "TI OMAP2+"
111	depends on ARCH_OMAP2PLUS
112	default ARCH_OMAP2PLUS
113
114config ARM_QCOM_CPUFREQ_KRYO
115	tristate "Qualcomm Kryo based CPUFreq"
116	depends on ARM64
117	depends on QCOM_QFPROM
118	depends on QCOM_SMEM
119	select PM_OPP
120	help
121	  This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
122
123	  If in doubt, say N.
124
125config ARM_QCOM_CPUFREQ_HW
126	tristate "QCOM CPUFreq HW driver"
127	depends on ARCH_QCOM || COMPILE_TEST
128	help
129	  Support for the CPUFreq HW driver.
130	  Some QCOM chipsets have a HW engine to offload the steps
131	  necessary for changing the frequency of the CPUs. Firmware loaded
132	  in this engine exposes a programming interface to the OS.
133	  The driver implements the cpufreq interface for this HW engine.
134	  Say Y if you want to support CPUFreq HW.
135
136config ARM_S3C_CPUFREQ
137	bool
138	help
139	  Internal configuration node for common cpufreq on Samsung SoC
140
141config ARM_S3C24XX_CPUFREQ
142	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
143	depends on ARCH_S3C24XX
144	select ARM_S3C_CPUFREQ
145	help
146	  This enables the CPUfreq driver for the Samsung S3C24XX family
147	  of CPUs.
148
149	  For details, take a look at <file:Documentation/cpu-freq>.
150
151	  If in doubt, say N.
152
153config ARM_S3C24XX_CPUFREQ_DEBUG
154	bool "Debug CPUfreq Samsung driver core"
155	depends on ARM_S3C24XX_CPUFREQ
156	help
157	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
158
159config ARM_S3C24XX_CPUFREQ_IODEBUG
160	bool "Debug CPUfreq Samsung driver IO timing"
161	depends on ARM_S3C24XX_CPUFREQ
162	help
163	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
164
165config ARM_S3C24XX_CPUFREQ_DEBUGFS
166	bool "Export debugfs for CPUFreq"
167	depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS
168	help
169	  Export status information via debugfs.
170
171config ARM_S3C2410_CPUFREQ
172	bool
173	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410
174	select S3C2410_CPUFREQ_UTILS
175	help
176	  CPU Frequency scaling support for S3C2410
177
178config ARM_S3C2412_CPUFREQ
179	bool
180	depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412
181	default y
182	select S3C2412_IOTIMING
183	help
184	  CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs.
185
186config ARM_S3C2416_CPUFREQ
187	bool "S3C2416 CPU Frequency scaling support"
188	depends on CPU_S3C2416
189	help
190	  This adds the CPUFreq driver for the Samsung S3C2416 and
191	  S3C2450 SoC. The S3C2416 supports changing the rate of the
192	  armdiv clock source and also entering a so called dynamic
193	  voltage scaling mode in which it is possible to reduce the
194	  core voltage of the CPU.
195
196	  If in doubt, say N.
197
198config ARM_S3C2416_CPUFREQ_VCORESCALE
199	bool "Allow voltage scaling for S3C2416 arm core"
200	depends on ARM_S3C2416_CPUFREQ && REGULATOR
201	help
202	  Enable CPU voltage scaling when entering the dvs mode.
203	  It uses information gathered through existing hardware and
204	  tests but not documented in any datasheet.
205
206	  If in doubt, say N.
207
208config ARM_S3C2440_CPUFREQ
209	bool "S3C2440/S3C2442 CPU Frequency scaling support"
210	depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442)
211	select S3C2410_CPUFREQ_UTILS
212	default y
213	help
214	  CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs.
215
216config ARM_S3C64XX_CPUFREQ
217	bool "Samsung S3C64XX"
218	depends on CPU_S3C6410
219	default y
220	help
221	  This adds the CPUFreq driver for Samsung S3C6410 SoC.
222
223	  If in doubt, say N.
224
225config ARM_S5PV210_CPUFREQ
226	bool "Samsung S5PV210 and S5PC110"
227	depends on CPU_S5PV210
228	default y
229	help
230	  This adds the CPUFreq driver for Samsung S5PV210 and
231	  S5PC110 SoCs.
232
233	  If in doubt, say N.
234
235config ARM_SA1100_CPUFREQ
236	bool
237
238config ARM_SA1110_CPUFREQ
239	bool
240
241config ARM_SCMI_CPUFREQ
242	tristate "SCMI based CPUfreq driver"
243	depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
244	select PM_OPP
245	help
246	  This adds the CPUfreq driver support for ARM platforms using SCMI
247	  protocol for CPU power management.
248
249	  This driver uses SCMI Message Protocol driver to interact with the
250	  firmware providing the CPU DVFS functionality.
251
252config ARM_SPEAR_CPUFREQ
253	bool "SPEAr CPUFreq support"
254	depends on PLAT_SPEAR
255	default y
256	help
257	  This adds the CPUFreq driver support for SPEAr SOCs.
258
259config ARM_STI_CPUFREQ
260	tristate "STi CPUFreq support"
261	depends on SOC_STIH407
262	help
263	  This driver uses the generic OPP framework to match the running
264	  platform with a predefined set of suitable values.  If not provided
265	  we will fall-back so safe-values contained in Device Tree.  Enable
266	  this config option if you wish to add CPUFreq support for STi based
267	  SoCs.
268
269config ARM_TANGO_CPUFREQ
270	bool
271	depends on CPUFREQ_DT && ARCH_TANGO
272	default y
273
274config ARM_TEGRA20_CPUFREQ
275	tristate "Tegra20 CPUFreq support"
276	depends on ARCH_TEGRA
277	default y
278	help
279	  This adds the CPUFreq driver support for Tegra20 SOCs.
280
281config ARM_TEGRA124_CPUFREQ
282	bool "Tegra124 CPUFreq support"
283	depends on ARCH_TEGRA && CPUFREQ_DT
284	default y
285	help
286	  This adds the CPUFreq driver support for Tegra124 SOCs.
287
288config ARM_TEGRA186_CPUFREQ
289	tristate "Tegra186 CPUFreq support"
290	depends on ARCH_TEGRA && TEGRA_BPMP
291	help
292	  This adds the CPUFreq driver support for Tegra186 SOCs.
293
294config ARM_TI_CPUFREQ
295	bool "Texas Instruments CPUFreq support"
296	depends on ARCH_OMAP2PLUS
297	help
298	  This driver enables valid OPPs on the running platform based on
299	  values contained within the SoC in use. Enable this in order to
300	  use the cpufreq-dt driver on all Texas Instruments platforms that
301	  provide dt based operating-points-v2 tables with opp-supported-hw
302	  data provided. Required for cpufreq support on AM335x, AM437x,
303	  DRA7x, and AM57x platforms.
304
305config ARM_PXA2xx_CPUFREQ
306	tristate "Intel PXA2xx CPUfreq driver"
307	depends on PXA27x || PXA25x
308	help
309	  This add the CPUFreq driver support for Intel PXA2xx SOCs.
310
311	  If in doubt, say N.
312