1# SPDX-License-Identifier: GPL-2.0-only
  2menuconfig NVMEM
  3	bool "NVMEM Support"
  4	imply NVMEM_LAYOUTS
  5	help
  6	  Support for NVMEM(Non Volatile Memory) devices like EEPROM, EFUSES...
  7
  8	  This framework is designed to provide a generic interface to NVMEM
  9	  from both the Linux Kernel and the userspace.
 10
 11	  If unsure, say no.
 12
 13if NVMEM
 14
 15config NVMEM_SYSFS
 16	bool "/sys/bus/nvmem/devices/*/nvmem (sysfs interface)"
 17	depends on SYSFS
 18	default y
 19	help
 20	 Say Y here to add a sysfs interface for NVMEM.
 21
 22	 This interface is mostly used by userspace applications to
 23	 read/write directly into nvmem.
 24
 25# Layouts
 26
 27source "drivers/nvmem/layouts/Kconfig"
 28
 29# Devices
 30
 31config NVMEM_APPLE_EFUSES
 32	tristate "Apple eFuse support"
 33	depends on ARCH_APPLE || COMPILE_TEST
 34	default ARCH_APPLE
 35	help
 36	  Say y here to enable support for reading eFuses on Apple SoCs
 37	  such as the M1. These are e.g. used to store factory programmed
 38	  calibration data required for the PCIe or the USB-C PHY.
 39
 40	  This driver can also be built as a module. If so, the module will
 41	  be called nvmem-apple-efuses.
 42
 43config NVMEM_BCM_OCOTP
 44	tristate "Broadcom On-Chip OTP Controller support"
 45	depends on ARCH_BCM_IPROC || COMPILE_TEST
 46	depends on HAS_IOMEM
 47	default ARCH_BCM_IPROC
 48	help
 49	  Say y here to enable read/write access to the Broadcom OTP
 50	  controller.
 51
 52	  This driver can also be built as a module. If so, the module
 53	  will be called nvmem-bcm-ocotp.
 54
 55config NVMEM_BRCM_NVRAM
 56	tristate "Broadcom's NVRAM support"
 57	depends on ARCH_BCM_5301X || COMPILE_TEST
 58	depends on HAS_IOMEM
 59	select GENERIC_NET_UTILS
 60	help
 61	  This driver provides support for Broadcom's NVRAM that can be accessed
 62	  using I/O mapping.
 63
 64config NVMEM_IMX_IIM
 65	tristate "i.MX IC Identification Module support"
 66	depends on ARCH_MXC || COMPILE_TEST
 67	help
 68	  This is a driver for the IC Identification Module (IIM) available on
 69	  i.MX SoCs, providing access to 4 Kbits of programmable
 70	  eFuses.
 71
 72	  This driver can also be built as a module. If so, the module
 73	  will be called nvmem-imx-iim.
 74
 75config NVMEM_IMX_OCOTP
 76	tristate "i.MX 6/7/8 On-Chip OTP Controller support"
 77	depends on ARCH_MXC || COMPILE_TEST
 78	depends on HAS_IOMEM
 79	help
 80	  This is a driver for the On-Chip OTP Controller (OCOTP) available on
 81	  i.MX6 SoCs, providing access to 4 Kbits of one-time programmable
 82	  eFuses.
 83
 84	  This driver can also be built as a module. If so, the module
 85	  will be called nvmem-imx-ocotp.
 86
 87config NVMEM_IMX_OCOTP_ELE
 88	tristate "i.MX On-Chip OTP Controller support"
 89	depends on ARCH_MXC || COMPILE_TEST
 90	depends on HAS_IOMEM
 91	depends on OF
 92	help
 93	  This is a driver for the On-Chip OTP Controller (OCOTP)
 94	  available on i.MX SoCs which has ELE.
 95
 96config NVMEM_IMX_OCOTP_SCU
 97	tristate "i.MX8 SCU On-Chip OTP Controller support"
 98	depends on IMX_SCU
 99	depends on HAVE_ARM_SMCCC
100	help
101	  This is a driver for the SCU On-Chip OTP Controller (OCOTP)
102	  available on i.MX8 SoCs.
103
104config NVMEM_JZ4780_EFUSE
105	tristate "JZ4780 EFUSE Memory Support"
106	depends on MACH_INGENIC || COMPILE_TEST
107	depends on HAS_IOMEM
108	depends on OF
109	select REGMAP_MMIO
110	help
111	  Say Y here to include support for JZ4780 efuse memory found on
112	  all JZ4780 SoC based devices.
113	  To compile this driver as a module, choose M here: the module
114	  will be called nvmem_jz4780_efuse.
115
116config NVMEM_LAN9662_OTPC
117	tristate "Microchip LAN9662 OTP controller support"
118	depends on SOC_LAN966 || COMPILE_TEST
119	depends on HAS_IOMEM
120	help
121	  This driver enables the OTP controller available on Microchip LAN9662
122	  SoCs. It controls the access to the OTP memory connected to it.
123
124config NVMEM_LAYERSCAPE_SFP
125	tristate "Layerscape SFP (Security Fuse Processor) support"
126	depends on ARCH_LAYERSCAPE || COMPILE_TEST
127	depends on HAS_IOMEM
128	select REGMAP_MMIO
129	help
130	  This driver provides support to read the eFuses on Freescale
131	  Layerscape SoC's. For example, the vendor provides a per part
132	  unique ID there.
133
134	  This driver can also be built as a module. If so, the module
135	  will be called layerscape-sfp.
136
137config NVMEM_LPC18XX_EEPROM
138	tristate "NXP LPC18XX EEPROM Memory Support"
139	depends on ARCH_LPC18XX || COMPILE_TEST
140	depends on HAS_IOMEM
141	help
142	  Say Y here to include support for NXP LPC18xx EEPROM memory found in
143	  NXP LPC185x/3x and LPC435x/3x/2x/1x devices.
144	  To compile this driver as a module, choose M here: the module
145	  will be called nvmem_lpc18xx_eeprom.
146
147config NVMEM_LPC18XX_OTP
148	tristate "NXP LPC18XX OTP Memory Support"
149	depends on ARCH_LPC18XX || COMPILE_TEST
150	depends on HAS_IOMEM
151	help
152	  Say Y here to include support for NXP LPC18xx OTP memory found on
153	  all LPC18xx and LPC43xx devices.
154	  To compile this driver as a module, choose M here: the module
155	  will be called nvmem_lpc18xx_otp.
156
157config NVMEM_MESON_EFUSE
158	tristate "Amlogic Meson GX eFuse Support"
159	depends on (ARCH_MESON || COMPILE_TEST) && MESON_SM
160	help
161	  This is a driver to retrieve specific values from the eFuse found on
162	  the Amlogic Meson GX SoCs.
163
164	  This driver can also be built as a module. If so, the module
165	  will be called nvmem_meson_efuse.
166
167config NVMEM_MESON_MX_EFUSE
168	tristate "Amlogic Meson6/Meson8/Meson8b eFuse Support"
169	depends on ARCH_MESON || COMPILE_TEST
170	help
171	  This is a driver to retrieve specific values from the eFuse found on
172	  the Amlogic Meson6, Meson8 and Meson8b SoCs.
173
174	  This driver can also be built as a module. If so, the module
175	  will be called nvmem_meson_mx_efuse.
176
177config NVMEM_MICROCHIP_OTPC
178	tristate "Microchip OTPC support"
179	depends on ARCH_AT91 || COMPILE_TEST
180	help
181	  This driver enable the OTP controller available on Microchip SAMA7G5
182	  SoCs. It controls the access to the OTP memory connected to it.
183
184config NVMEM_MTK_EFUSE
185	tristate "Mediatek SoCs EFUSE support"
186	depends on ARCH_MEDIATEK || COMPILE_TEST
187	depends on HAS_IOMEM
188	help
189	  This is a driver to access hardware related data like sensor
190	  calibration, HDMI impedance etc.
191
192	  This driver can also be built as a module. If so, the module
193	  will be called efuse-mtk.
194
195config NVMEM_MXS_OCOTP
196	tristate "Freescale MXS On-Chip OTP Memory Support"
197	depends on ARCH_MXS || COMPILE_TEST
198	depends on HAS_IOMEM
199	help
200	  If you say Y here, you will get readonly access to the
201	  One Time Programmable memory pages that are stored
202	  on the Freescale i.MX23/i.MX28 processor.
203
204	  This driver can also be built as a module. If so, the module
205	  will be called nvmem-mxs-ocotp.
206
207config NVMEM_NINTENDO_OTP
208	tristate "Nintendo Wii and Wii U OTP Support"
209	depends on WII || COMPILE_TEST
 
210	help
211	  This is a driver exposing the OTP of a Nintendo Wii or Wii U console.
212
213	  This memory contains common and per-console keys, signatures and
214	  related data required to access peripherals.
215
216	  This driver can also be built as a module. If so, the module
217	  will be called nvmem-nintendo-otp.
218
219config NVMEM_QCOM_QFPROM
220	tristate "QCOM QFPROM Support"
221	depends on ARCH_QCOM || COMPILE_TEST
222	depends on HAS_IOMEM
 
223	help
224	  Say y here to enable QFPROM support. The QFPROM provides access
225	  functions for QFPROM data to rest of the drivers via nvmem interface.
226
227	  This driver can also be built as a module. If so, the module
228	  will be called nvmem_qfprom.
229
230config NVMEM_QCOM_SEC_QFPROM
231        tristate "QCOM SECURE QFPROM Support"
232        depends on ARCH_QCOM || COMPILE_TEST
233        depends on HAS_IOMEM
234        depends on OF
235        select QCOM_SCM
236        help
237          Say y here to enable secure QFPROM support. The secure QFPROM provides access
238          functions for QFPROM data to rest of the drivers via nvmem interface.
239
240          This driver can also be built as a module. If so, the module will be called
241          nvmem_sec_qfprom.
242
243config NVMEM_RAVE_SP_EEPROM
244	tristate "Rave SP EEPROM Support"
245	depends on RAVE_SP_CORE
246	help
247	  Say y here to enable Rave SP EEPROM support.
248
249config NVMEM_RCAR_EFUSE
250	tristate "Renesas R-Car Gen4 E-FUSE support"
251	depends on (ARCH_RENESAS && ARM64) || COMPILE_TEST
252	depends on NVMEM
253	help
254	  Enable support for reading the fuses in the E-FUSE or OTP
255	  non-volatile memory block on Renesas R-Car Gen4 SoCs.
256
257	  This driver can also be built as a module. If so, the module
258	  will be called nvmem-rcar-efuse.
259
260config NVMEM_RMEM
261	tristate "Reserved Memory Based Driver Support"
262	depends on HAS_IOMEM
263	help
264	  This driver maps reserved memory into an nvmem device. It might be
265	  useful to expose information left by firmware in memory.
266
267	  This driver can also be built as a module. If so, the module
268	  will be called nvmem-rmem.
269
270config NVMEM_ROCKCHIP_EFUSE
271	tristate "Rockchip eFuse Support"
272	depends on ARCH_ROCKCHIP || COMPILE_TEST
273	depends on HAS_IOMEM
274	help
275	  This is a simple driver to dump specified values of Rockchip SoC
276	  from eFuse, such as cpu-leakage.
277
278	  This driver can also be built as a module. If so, the module
279	  will be called nvmem_rockchip_efuse.
280
281config NVMEM_ROCKCHIP_OTP
282	tristate "Rockchip OTP controller support"
283	depends on ARCH_ROCKCHIP || COMPILE_TEST
284	depends on HAS_IOMEM
285	help
286	  This is a simple driver to dump specified values of Rockchip SoC
287	  from OTP, such as cpu-leakage.
288
289	  This driver can also be built as a module. If so, the module
290	  will be called nvmem_rockchip_otp.
291
292config NVMEM_SC27XX_EFUSE
293	tristate "Spreadtrum SC27XX eFuse Support"
294	depends on MFD_SC27XX_PMIC || COMPILE_TEST
295	depends on HAS_IOMEM
296	help
297	  This is a simple driver to dump specified values of Spreadtrum
298	  SC27XX PMICs from eFuse.
299
300	  This driver can also be built as a module. If so, the module
301	  will be called nvmem-sc27xx-efuse.
302
303config NVMEM_SNVS_LPGPR
304	tristate "Support for Low Power General Purpose Register"
305	depends on ARCH_MXC || COMPILE_TEST
306	help
307	  This is a driver for Low Power General Purpose Register (LPGPR) available on
308	  i.MX6 and i.MX7 SoCs in Secure Non-Volatile Storage (SNVS) of this chip.
309
310	  This driver can also be built as a module. If so, the module
311	  will be called nvmem-snvs-lpgpr.
312
313config NVMEM_SPMI_SDAM
314	tristate "SPMI SDAM Support"
315	depends on SPMI
316	help
317	  This driver supports the Shared Direct Access Memory Module on
318	  Qualcomm Technologies, Inc. PMICs. It provides the clients
319	  an interface to read/write to the SDAM module's shared memory.
320
321config NVMEM_SPRD_EFUSE
322	tristate "Spreadtrum SoC eFuse Support"
323	depends on ARCH_SPRD || COMPILE_TEST
324	depends on HAS_IOMEM
325	help
326	  This is a simple driver to dump specified values of Spreadtrum
327	  SoCs from eFuse.
328
329	  This driver can also be built as a module. If so, the module
330	  will be called nvmem-sprd-efuse.
331
332config NVMEM_STM32_BSEC_OPTEE_TA
333	def_bool NVMEM_STM32_ROMEM && OPTEE
334	help
335	  Say y here to enable the accesses to STM32MP SoC OTPs by the OP-TEE
336	  trusted application STM32MP BSEC.
337
338	  This library is a used by stm32-romem driver or included in the module
339	  called nvmem-stm32-romem.
340
341config NVMEM_STM32_ROMEM
342	tristate "STMicroelectronics STM32 factory-programmed memory support"
343	depends on ARCH_STM32 || COMPILE_TEST
344	depends on OPTEE || !OPTEE
345	help
346	  Say y here to enable read-only access for STMicroelectronics STM32
347	  factory-programmed memory area.
348
349	  This driver can also be built as a module. If so, the module
350	  will be called nvmem-stm32-romem.
351
352config NVMEM_SUNPLUS_OCOTP
353	tristate "Sunplus SoC OTP support"
354	depends on SOC_SP7021 || COMPILE_TEST
355	depends on HAS_IOMEM
356	help
357	  This is a driver for the On-chip OTP controller (OCOTP) available
358	  on Sunplus SoCs. It provides access to 128 bytes of one-time
359	  programmable eFuse.
360
361	  This driver can also be built as a module. If so, the module
362	  will be called nvmem-sunplus-ocotp.
363
364config NVMEM_SUNXI_SID
365	tristate "Allwinner SoCs SID support"
366	depends on ARCH_SUNXI
 
367	help
368	  This is a driver for the 'security ID' available on various Allwinner
369	  devices.
370
371	  This driver can also be built as a module. If so, the module
372	  will be called nvmem_sunxi_sid.
373
374config NVMEM_U_BOOT_ENV
375	tristate "U-Boot environment variables support"
376	depends on OF && MTD
377	select NVMEM_LAYOUT_U_BOOT_ENV
378	help
379	  U-Boot stores its setup as environment variables. This driver adds
380	  support for verifying & exporting such data. It also exposes variables
381	  as NVMEM cells so they can be referenced by other drivers.
382
383	  Currently this drivers works only with env variables on top of MTD.
384
385	  If compiled as module it will be called nvmem_u-boot-env.
386
387config NVMEM_UNIPHIER_EFUSE
388	tristate "UniPhier SoCs eFuse support"
389	depends on ARCH_UNIPHIER || COMPILE_TEST
390	depends on HAS_IOMEM
391	help
392	  This is a simple driver to dump specified values of UniPhier SoC
393	  from eFuse.
394
395	  This driver can also be built as a module. If so, the module
396	  will be called nvmem-uniphier-efuse.
397
398config NVMEM_VF610_OCOTP
399	tristate "VF610 SoC OCOTP support"
400	depends on SOC_VF610 || COMPILE_TEST
401	depends on HAS_IOMEM
402	help
403	  This is a driver for the 'OCOTP' peripheral available on Vybrid
404	  devices like VF5xx and VF6xx.
405
406	  This driver can also be build as a module. If so, the module will
407	  be called nvmem-vf610-ocotp.
408
409config NVMEM_ZYNQMP
410	tristate "Xilinx ZYNQMP SoC nvmem firmware support"
411	depends on ARCH_ZYNQMP
412	help
413	  This is a driver to access hardware related data like
414	  soc revision, IDCODE... etc by using the firmware
415	  interface.
416
417	  If sure, say yes. If unsure, say no.
418
419config NVMEM_QORIQ_EFUSE
420	tristate "NXP QorIQ eFuse support"
421	depends on PPC_85xx || COMPILE_TEST
422	depends on HAS_IOMEM
423	help
424	  This driver provides read support for the eFuses (SFP) on NXP QorIQ
425	  series SoC's. This includes secure boot settings, the globally unique
426	  NXP ID 'FUIDR' and the OEM unique ID 'OUIDR'.
427
428	  This driver can also be built as a module. If so, the module
429	  will be called nvmem_qoriq_efuse.
430
431endif

 
  1menuconfig NVMEM
  2	tristate "NVMEM Support"
  3	select REGMAP
  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	  This driver can also be built as a module. If so, the module
 11	  will be called nvmem_core.
 
 
 
 
 
 
 
 
 
 12
 13	  If unsure, say no.
 
 
 
 
 
 
 14
 15if NVMEM
 
 16
 17config NVMEM_IMX_OCOTP
 18	tristate "i.MX6 On-Chip OTP Controller support"
 19	depends on SOC_IMX6
 
 20	help
 21	  This is a driver for the On-Chip OTP Controller (OCOTP) available on
 22	  i.MX6 SoCs, providing access to 4 Kbits of one-time programmable
 23	  eFuses.
 24
 25	  This driver can also be built as a module. If so, the module
 26	  will be called nvmem-imx-ocotp.
 27
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 28config NVMEM_LPC18XX_EEPROM
 29	tristate "NXP LPC18XX EEPROM Memory Support"
 30	depends on ARCH_LPC18XX || COMPILE_TEST
 
 31	help
 32	  Say Y here to include support for NXP LPC18xx EEPROM memory found in
 33	  NXP LPC185x/3x and LPC435x/3x/2x/1x devices.
 34	  To compile this driver as a module, choose M here: the module
 35	  will be called nvmem_lpc18xx_eeprom.
 36
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 37config NVMEM_MXS_OCOTP
 38	tristate "Freescale MXS On-Chip OTP Memory Support"
 39	depends on ARCH_MXS || COMPILE_TEST
 40	depends on HAS_IOMEM
 41	help
 42	  If you say Y here, you will get readonly access to the
 43	  One Time Programmable memory pages that are stored
 44	  on the Freescale i.MX23/i.MX28 processor.
 45
 46	  This driver can also be built as a module. If so, the module
 47	  will be called nvmem-mxs-ocotp.
 48
 49config MTK_EFUSE
 50	tristate "Mediatek SoCs EFUSE support"
 51	depends on ARCH_MEDIATEK || COMPILE_TEST
 52	select REGMAP_MMIO
 53	help
 54	  This is a driver to access hardware related data like sensor
 55	  calibration, HDMI impedance etc.
 
 
 56
 57	  This driver can also be built as a module. If so, the module
 58	  will be called efuse-mtk.
 59
 60config QCOM_QFPROM
 61	tristate "QCOM QFPROM Support"
 62	depends on ARCH_QCOM || COMPILE_TEST
 63	depends on HAS_IOMEM
 64	select REGMAP_MMIO
 65	help
 66	  Say y here to enable QFPROM support. The QFPROM provides access
 67	  functions for QFPROM data to rest of the drivers via nvmem interface.
 68
 69	  This driver can also be built as a module. If so, the module
 70	  will be called nvmem_qfprom.
 71
 72config ROCKCHIP_EFUSE
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 73	tristate "Rockchip eFuse Support"
 74	depends on ARCH_ROCKCHIP || COMPILE_TEST
 75	depends on HAS_IOMEM
 76	help
 77	  This is a simple drive to dump specified values of Rockchip SoC
 78	  from eFuse, such as cpu-leakage.
 79
 80	  This driver can also be built as a module. If so, the module
 81	  will be called nvmem_rockchip_efuse.
 82
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 83config NVMEM_SUNXI_SID
 84	tristate "Allwinner SoCs SID support"
 85	depends on ARCH_SUNXI
 86	select REGMAP_MMIO
 87	help
 88	  This is a driver for the 'security ID' available on various Allwinner
 89	  devices.
 90
 91	  This driver can also be built as a module. If so, the module
 92	  will be called nvmem_sunxi_sid.
 93
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 94config NVMEM_VF610_OCOTP
 95	tristate "VF610 SoC OCOTP support"
 96	depends on SOC_VF610 || COMPILE_TEST
 97	depends on HAS_IOMEM
 98	help
 99	  This is a driver for the 'OCOTP' peripheral available on Vybrid
100	  devices like VF5xx and VF6xx.
101
102	  This driver can also be build as a module. If so, the module will
103	  be called nvmem-vf610-ocotp.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
104
105endif