tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1# SPDX-License-Identifier: GPL-2.0-only
2menuconfig NVMEM
3 bool "NVMEM Support"
4 help
5 Support for NVMEM(Non Volatile Memory) devices like EEPROM, EFUSES...
6
7 This framework is designed to provide a generic interface to NVMEM
8 from both the Linux Kernel and the userspace.
9
10 If unsure, say no.
11
12if NVMEM
13
14config NVMEM_SYSFS
15 bool "/sys/bus/nvmem/devices/*/nvmem (sysfs interface)"
16 depends on SYSFS
17 default y
18 help
19 Say Y here to add a sysfs interface for NVMEM.
20
21 This interface is mostly used by userspace applications to
22 read/write directly into nvmem.
23
24config NVMEM_IMX_IIM
25 tristate "i.MX IC Identification Module support"
26 depends on ARCH_MXC || COMPILE_TEST
27 help
28 This is a driver for the IC Identification Module (IIM) available on
29 i.MX SoCs, providing access to 4 Kbits of programmable
30 eFuses.
31
32 This driver can also be built as a module. If so, the module
33 will be called nvmem-imx-iim.
34
35config NVMEM_IMX_OCOTP
36 tristate "i.MX 6/7/8 On-Chip OTP Controller support"
37 depends on ARCH_MXC || COMPILE_TEST
38 depends on HAS_IOMEM
39 help
40 This is a driver for the On-Chip OTP Controller (OCOTP) available on
41 i.MX6 SoCs, providing access to 4 Kbits of one-time programmable
42 eFuses.
43
44 This driver can also be built as a module. If so, the module
45 will be called nvmem-imx-ocotp.
46
47config NVMEM_IMX_OCOTP_SCU
48 tristate "i.MX8 SCU On-Chip OTP Controller support"
49 depends on IMX_SCU
50 depends on HAVE_ARM_SMCCC
51 help
52 This is a driver for the SCU On-Chip OTP Controller (OCOTP)
53 available on i.MX8 SoCs.
54
55config JZ4780_EFUSE
56 tristate "JZ4780 EFUSE Memory Support"
57 depends on MACH_INGENIC || COMPILE_TEST
58 depends on HAS_IOMEM
59 depends on OF
60 select REGMAP_MMIO
61 help
62 Say Y here to include support for JZ4780 efuse memory found on
63 all JZ4780 SoC based devices.
64 To compile this driver as a module, choose M here: the module
65 will be called nvmem_jz4780_efuse.
66
67config NVMEM_LPC18XX_EEPROM
68 tristate "NXP LPC18XX EEPROM Memory Support"
69 depends on ARCH_LPC18XX || COMPILE_TEST
70 depends on HAS_IOMEM
71 help
72 Say Y here to include support for NXP LPC18xx EEPROM memory found in
73 NXP LPC185x/3x and LPC435x/3x/2x/1x devices.
74 To compile this driver as a module, choose M here: the module
75 will be called nvmem_lpc18xx_eeprom.
76
77config NVMEM_LPC18XX_OTP
78 tristate "NXP LPC18XX OTP Memory Support"
79 depends on ARCH_LPC18XX || COMPILE_TEST
80 depends on HAS_IOMEM
81 help
82 Say Y here to include support for NXP LPC18xx OTP memory found on
83 all LPC18xx and LPC43xx devices.
84 To compile this driver as a module, choose M here: the module
85 will be called nvmem_lpc18xx_otp.
86
87config NVMEM_MXS_OCOTP
88 tristate "Freescale MXS On-Chip OTP Memory Support"
89 depends on ARCH_MXS || COMPILE_TEST
90 depends on HAS_IOMEM
91 help
92 If you say Y here, you will get readonly access to the
93 One Time Programmable memory pages that are stored
94 on the Freescale i.MX23/i.MX28 processor.
95
96 This driver can also be built as a module. If so, the module
97 will be called nvmem-mxs-ocotp.
98
99config MTK_EFUSE
100 tristate "Mediatek SoCs EFUSE support"
101 depends on ARCH_MEDIATEK || COMPILE_TEST
102 depends on HAS_IOMEM
103 help
104 This is a driver to access hardware related data like sensor
105 calibration, HDMI impedance etc.
106
107 This driver can also be built as a module. If so, the module
108 will be called efuse-mtk.
109
110config NVMEM_NINTENDO_OTP
111 tristate "Nintendo Wii and Wii U OTP Support"
112 depends on WII || COMPILE_TEST
113 help
114 This is a driver exposing the OTP of a Nintendo Wii or Wii U console.
115
116 This memory contains common and per-console keys, signatures and
117 related data required to access peripherals.
118
119 This driver can also be built as a module. If so, the module
120 will be called nvmem-nintendo-otp.
121
122config QCOM_QFPROM
123 tristate "QCOM QFPROM Support"
124 depends on ARCH_QCOM || COMPILE_TEST
125 depends on HAS_IOMEM
126 help
127 Say y here to enable QFPROM support. The QFPROM provides access
128 functions for QFPROM data to rest of the drivers via nvmem interface.
129
130 This driver can also be built as a module. If so, the module
131 will be called nvmem_qfprom.
132
133config NVMEM_SPMI_SDAM
134 tristate "SPMI SDAM Support"
135 depends on SPMI
136 help
137 This driver supports the Shared Direct Access Memory Module on
138 Qualcomm Technologies, Inc. PMICs. It provides the clients
139 an interface to read/write to the SDAM module's shared memory.
140
141config ROCKCHIP_EFUSE
142 tristate "Rockchip eFuse Support"
143 depends on ARCH_ROCKCHIP || COMPILE_TEST
144 depends on HAS_IOMEM
145 help
146 This is a simple drive to dump specified values of Rockchip SoC
147 from eFuse, such as cpu-leakage.
148
149 This driver can also be built as a module. If so, the module
150 will be called nvmem_rockchip_efuse.
151
152config ROCKCHIP_OTP
153 tristate "Rockchip OTP controller support"
154 depends on ARCH_ROCKCHIP || COMPILE_TEST
155 depends on HAS_IOMEM
156 help
157 This is a simple drive to dump specified values of Rockchip SoC
158 from otp, such as cpu-leakage.
159
160 This driver can also be built as a module. If so, the module
161 will be called nvmem_rockchip_otp.
162
163config NVMEM_BCM_OCOTP
164 tristate "Broadcom On-Chip OTP Controller support"
165 depends on ARCH_BCM_IPROC || COMPILE_TEST
166 depends on HAS_IOMEM
167 default ARCH_BCM_IPROC
168 help
169 Say y here to enable read/write access to the Broadcom OTP
170 controller.
171
172 This driver can also be built as a module. If so, the module
173 will be called nvmem-bcm-ocotp.
174
175config NVMEM_STM32_ROMEM
176 tristate "STMicroelectronics STM32 factory-programmed memory support"
177 depends on ARCH_STM32 || COMPILE_TEST
178 help
179 Say y here to enable read-only access for STMicroelectronics STM32
180 factory-programmed memory area.
181
182 This driver can also be built as a module. If so, the module
183 will be called nvmem-stm32-romem.
184
185config NVMEM_SUNXI_SID
186 tristate "Allwinner SoCs SID support"
187 depends on ARCH_SUNXI
188 help
189 This is a driver for the 'security ID' available on various Allwinner
190 devices.
191
192 This driver can also be built as a module. If so, the module
193 will be called nvmem_sunxi_sid.
194
195config UNIPHIER_EFUSE
196 tristate "UniPhier SoCs eFuse support"
197 depends on ARCH_UNIPHIER || COMPILE_TEST
198 depends on HAS_IOMEM
199 help
200 This is a simple driver to dump specified values of UniPhier SoC
201 from eFuse.
202
203 This driver can also be built as a module. If so, the module
204 will be called nvmem-uniphier-efuse.
205
206config NVMEM_VF610_OCOTP
207 tristate "VF610 SoC OCOTP support"
208 depends on SOC_VF610 || COMPILE_TEST
209 depends on HAS_IOMEM
210 help
211 This is a driver for the 'OCOTP' peripheral available on Vybrid
212 devices like VF5xx and VF6xx.
213
214 This driver can also be build as a module. If so, the module will
215 be called nvmem-vf610-ocotp.
216
217config MESON_EFUSE
218 tristate "Amlogic Meson GX eFuse Support"
219 depends on (ARCH_MESON || COMPILE_TEST) && MESON_SM
220 help
221 This is a driver to retrieve specific values from the eFuse found on
222 the Amlogic Meson GX SoCs.
223
224 This driver can also be built as a module. If so, the module
225 will be called nvmem_meson_efuse.
226
227config MESON_MX_EFUSE
228 tristate "Amlogic Meson6/Meson8/Meson8b eFuse Support"
229 depends on ARCH_MESON || COMPILE_TEST
230 help
231 This is a driver to retrieve specific values from the eFuse found on
232 the Amlogic Meson6, Meson8 and Meson8b SoCs.
233
234 This driver can also be built as a module. If so, the module
235 will be called nvmem_meson_mx_efuse.
236
237config NVMEM_SNVS_LPGPR
238 tristate "Support for Low Power General Purpose Register"
239 depends on ARCH_MXC || COMPILE_TEST
240 help
241 This is a driver for Low Power General Purpose Register (LPGPR) available on
242 i.MX6 and i.MX7 SoCs in Secure Non-Volatile Storage (SNVS) of this chip.
243
244 This driver can also be built as a module. If so, the module
245 will be called nvmem-snvs-lpgpr.
246
247config RAVE_SP_EEPROM
248 tristate "Rave SP EEPROM Support"
249 depends on RAVE_SP_CORE
250 help
251 Say y here to enable Rave SP EEPROM support.
252
253config SC27XX_EFUSE
254 tristate "Spreadtrum SC27XX eFuse Support"
255 depends on MFD_SC27XX_PMIC || COMPILE_TEST
256 depends on HAS_IOMEM
257 help
258 This is a simple driver to dump specified values of Spreadtrum
259 SC27XX PMICs from eFuse.
260
261 This driver can also be built as a module. If so, the module
262 will be called nvmem-sc27xx-efuse.
263
264config NVMEM_ZYNQMP
265 bool "Xilinx ZYNQMP SoC nvmem firmware support"
266 depends on ARCH_ZYNQMP
267 help
268 This is a driver to access hardware related data like
269 soc revision, IDCODE... etc by using the firmware
270 interface.
271
272 If sure, say yes. If unsure, say no.
273
274config SPRD_EFUSE
275 tristate "Spreadtrum SoC eFuse Support"
276 depends on ARCH_SPRD || COMPILE_TEST
277 depends on HAS_IOMEM
278 help
279 This is a simple driver to dump specified values of Spreadtrum
280 SoCs from eFuse.
281
282 This driver can also be built as a module. If so, the module
283 will be called nvmem-sprd-efuse.
284
285config NVMEM_RMEM
286 tristate "Reserved Memory Based Driver Support"
287 depends on HAS_IOMEM
288 help
289 This driver maps reserved memory into an nvmem device. It might be
290 useful to expose information left by firmware in memory.
291
292 This driver can also be built as a module. If so, the module
293 will be called nvmem-rmem.
294
295config NVMEM_BRCM_NVRAM
296 tristate "Broadcom's NVRAM support"
297 depends on ARCH_BCM_5301X || COMPILE_TEST
298 depends on HAS_IOMEM
299 help
300 This driver provides support for Broadcom's NVRAM that can be accessed
301 using I/O mapping.
302
303endif