xref: /openbmc/linux/drivers/cpufreq/Kconfig.arm (revision 40d3b219) 
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 ACPI_CPPC_CPUFREQ_FIE
23	bool "Frequency Invariance support for CPPC cpufreq driver"
24	depends on ACPI_CPPC_CPUFREQ && GENERIC_ARCH_TOPOLOGY
25	default y
26	help
27	  This extends frequency invariance support in the CPPC cpufreq driver,
28	  by using CPPC delivered and reference performance counters.
29
30	  If in doubt, say N.
31
32config ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM
33	tristate "Allwinner nvmem based SUN50I CPUFreq driver"
34	depends on ARCH_SUNXI
35	depends on NVMEM_SUNXI_SID
36	select PM_OPP
37	help
38	  This adds the nvmem based CPUFreq driver for Allwinner
39	  h6 SoC.
40
41	  To compile this driver as a module, choose M here: the
42	  module will be called sun50i-cpufreq-nvmem.
43
44config ARM_APPLE_SOC_CPUFREQ
45	tristate "Apple Silicon SoC CPUFreq support"
46	depends on ARCH_APPLE || (COMPILE_TEST && 64BIT)
47	select PM_OPP
48	default ARCH_APPLE
49	help
50	  This adds the CPUFreq driver for Apple Silicon machines
51	  (e.g. Apple M1).
52
53config ARM_ARMADA_37XX_CPUFREQ
54	tristate "Armada 37xx CPUFreq support"
55	depends on ARCH_MVEBU && CPUFREQ_DT
56	help
57	  This adds the CPUFreq driver support for Marvell Armada 37xx SoCs.
58	  The Armada 37xx PMU supports 4 frequency and VDD levels.
59
60config ARM_ARMADA_8K_CPUFREQ
61	tristate "Armada 8K CPUFreq driver"
62	depends on ARCH_MVEBU && CPUFREQ_DT
63	select ARMADA_AP_CPU_CLK
64	help
65	  This enables the CPUFreq driver support for Marvell
66	  Armada8k SOCs.
67	  Armada8K device has the AP806 which supports scaling
68	  to any full integer divider.
69
70	  If in doubt, say N.
71
72config ARM_SCPI_CPUFREQ
73	tristate "SCPI based CPUfreq driver"
74	depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
75	help
76	  This adds the CPUfreq driver support for ARM platforms using SCPI
77	  protocol for CPU power management.
78
79	  This driver uses SCPI Message Protocol driver to interact with the
80	  firmware providing the CPU DVFS functionality.
81
82config ARM_VEXPRESS_SPC_CPUFREQ
83	tristate "Versatile Express SPC based CPUfreq driver"
84	depends on ARM_CPU_TOPOLOGY && HAVE_CLK
85	depends on ARCH_VEXPRESS_SPC
86	select PM_OPP
87	help
88	  This add the CPUfreq driver support for Versatile Express
89	  big.LITTLE platforms using SPC for power management.
90
91config ARM_BRCMSTB_AVS_CPUFREQ
92	tristate "Broadcom STB AVS CPUfreq driver"
93	depends on ARCH_BRCMSTB || COMPILE_TEST
94	default y
95	help
96	  Some Broadcom STB SoCs use a co-processor running proprietary firmware
97	  ("AVS") to handle voltage and frequency scaling. This driver provides
98	  a standard CPUfreq interface to the firmware.
99
100	  Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS.
101
102config ARM_HIGHBANK_CPUFREQ
103	tristate "Calxeda Highbank-based"
104	depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
105	default m
106	help
107	  This adds the CPUFreq driver for Calxeda Highbank SoC
108	  based boards.
109
110	  If in doubt, say N.
111
112config ARM_IMX6Q_CPUFREQ
113	tristate "Freescale i.MX6 cpufreq support"
114	depends on ARCH_MXC
115	depends on REGULATOR_ANATOP
116	depends on NVMEM_IMX_OCOTP || COMPILE_TEST
117	select PM_OPP
118	help
119	  This adds cpufreq driver support for Freescale i.MX6 series SoCs.
120
121	  If in doubt, say N.
122
123config ARM_IMX_CPUFREQ_DT
124	tristate "Freescale i.MX8M cpufreq support"
125	depends on ARCH_MXC && CPUFREQ_DT
126	help
127	  This adds cpufreq driver support for Freescale i.MX8M series SoCs,
128	  based on cpufreq-dt.
129
130	  If in doubt, say N.
131
132config ARM_KIRKWOOD_CPUFREQ
133	def_bool MACH_KIRKWOOD
134	help
135	  This adds the CPUFreq driver for Marvell Kirkwood
136	  SoCs.
137
138config ARM_MEDIATEK_CPUFREQ
139	tristate "CPU Frequency scaling support for MediaTek SoCs"
140	depends on ARCH_MEDIATEK && REGULATOR
141	select PM_OPP
142	help
143	  This adds the CPUFreq driver support for MediaTek SoCs.
144
145config ARM_MEDIATEK_CPUFREQ_HW
146	tristate "MediaTek CPUFreq HW driver"
147	depends on ARCH_MEDIATEK || COMPILE_TEST
148	default m
149	help
150	  Support for the CPUFreq HW driver.
151	  Some MediaTek chipsets have a HW engine to offload the steps
152	  necessary for changing the frequency of the CPUs. Firmware loaded
153	  in this engine exposes a programming interface to the OS.
154	  The driver implements the cpufreq interface for this HW engine.
155	  Say Y if you want to support CPUFreq HW.
156
157config ARM_OMAP2PLUS_CPUFREQ
158	bool "TI OMAP2+"
159	depends on ARCH_OMAP2PLUS
160	default ARCH_OMAP2PLUS
161
162config ARM_QCOM_CPUFREQ_NVMEM
163	tristate "Qualcomm nvmem based CPUFreq"
164	depends on ARCH_QCOM
165	depends on NVMEM_QCOM_QFPROM
166	depends on QCOM_SMEM
167	select PM_OPP
168	help
169	  This adds the CPUFreq driver for Qualcomm Kryo SoC based boards.
170
171	  If in doubt, say N.
172
173config ARM_QCOM_CPUFREQ_HW
174	tristate "QCOM CPUFreq HW driver"
175	depends on ARCH_QCOM || COMPILE_TEST
176	depends on COMMON_CLK
177	help
178	  Support for the CPUFreq HW driver.
179	  Some QCOM chipsets have a HW engine to offload the steps
180	  necessary for changing the frequency of the CPUs. Firmware loaded
181	  in this engine exposes a programming interface to the OS.
182	  The driver implements the cpufreq interface for this HW engine.
183	  Say Y if you want to support CPUFreq HW.
184
185config ARM_RASPBERRYPI_CPUFREQ
186	tristate "Raspberry Pi cpufreq support"
187	depends on CLK_RASPBERRYPI || COMPILE_TEST
188	help
189	  This adds the CPUFreq driver for Raspberry Pi
190
191	  If in doubt, say N.
192
193config ARM_S3C64XX_CPUFREQ
194	bool "Samsung S3C64XX"
195	depends on CPU_S3C6410
196	default y
197	help
198	  This adds the CPUFreq driver for Samsung S3C6410 SoC.
199
200	  If in doubt, say N.
201
202config ARM_S5PV210_CPUFREQ
203	bool "Samsung S5PV210 and S5PC110"
204	depends on CPU_S5PV210
205	default y
206	help
207	  This adds the CPUFreq driver for Samsung S5PV210 and
208	  S5PC110 SoCs.
209
210	  If in doubt, say N.
211
212config ARM_SA1110_CPUFREQ
213	bool
214
215config ARM_SCMI_CPUFREQ
216	tristate "SCMI based CPUfreq driver"
217	depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
218	select PM_OPP
219	help
220	  This adds the CPUfreq driver support for ARM platforms using SCMI
221	  protocol for CPU power management.
222
223	  This driver uses SCMI Message Protocol driver to interact with the
224	  firmware providing the CPU DVFS functionality.
225
226config ARM_SPEAR_CPUFREQ
227	bool "SPEAr CPUFreq support"
228	depends on PLAT_SPEAR
229	default y
230	help
231	  This adds the CPUFreq driver support for SPEAr SOCs.
232
233config ARM_STI_CPUFREQ
234	tristate "STi CPUFreq support"
235	depends on CPUFREQ_DT && SOC_STIH407
236	help
237	  This driver uses the generic OPP framework to match the running
238	  platform with a predefined set of suitable values.  If not provided
239	  we will fall-back so safe-values contained in Device Tree.  Enable
240	  this config option if you wish to add CPUFreq support for STi based
241	  SoCs.
242
243config ARM_TEGRA20_CPUFREQ
244	tristate "Tegra20/30 CPUFreq support"
245	depends on ARCH_TEGRA && CPUFREQ_DT
246	default y
247	help
248	  This adds the CPUFreq driver support for Tegra20/30 SOCs.
249
250config ARM_TEGRA124_CPUFREQ
251	bool "Tegra124 CPUFreq support"
252	depends on ARCH_TEGRA && CPUFREQ_DT
253	default y
254	help
255	  This adds the CPUFreq driver support for Tegra124 SOCs.
256
257config ARM_TEGRA186_CPUFREQ
258	tristate "Tegra186 CPUFreq support"
259	depends on ARCH_TEGRA && TEGRA_BPMP
260	help
261	  This adds the CPUFreq driver support for Tegra186 SOCs.
262
263config ARM_TEGRA194_CPUFREQ
264	tristate "Tegra194 CPUFreq support"
265	depends on ARCH_TEGRA_194_SOC && TEGRA_BPMP
266	default y
267	help
268	  This adds CPU frequency driver support for Tegra194 SOCs.
269
270config ARM_TI_CPUFREQ
271	bool "Texas Instruments CPUFreq support"
272	depends on ARCH_OMAP2PLUS || ARCH_K3
273	default y
274	help
275	  This driver enables valid OPPs on the running platform based on
276	  values contained within the SoC in use. Enable this in order to
277	  use the cpufreq-dt driver on all Texas Instruments platforms that
278	  provide dt based operating-points-v2 tables with opp-supported-hw
279	  data provided. Required for cpufreq support on AM335x, AM437x,
280	  DRA7x, and AM57x platforms.
281
282config ARM_PXA2xx_CPUFREQ
283	tristate "Intel PXA2xx CPUfreq driver"
284	depends on PXA27x || PXA25x
285	help
286	  This add the CPUFreq driver support for Intel PXA2xx SOCs.
287
288	  If in doubt, say N.
289