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+# SPDX-License-Identifier: GPL-2.0-only
+menuconfig NVMEM
+ bool "NVMEM Support"
+ help
+ Support for NVMEM(Non Volatile Memory) devices like EEPROM, EFUSES...
+
+ This framework is designed to provide a generic interface to NVMEM
+ from both the Linux Kernel and the userspace.
+
+ If unsure, say no.
+
+if NVMEM
+
+config NVMEM_SYSFS
+ bool "/sys/bus/nvmem/devices/*/nvmem (sysfs interface)"
+ depends on SYSFS
+ default y
+ help
+ Say Y here to add a sysfs interface for NVMEM.
+
+ This interface is mostly used by userspace applications to
+ read/write directly into nvmem.
+
+# Devices
+
+config NVMEM_APPLE_EFUSES
+ tristate "Apple eFuse support"
+ depends on ARCH_APPLE || COMPILE_TEST
+ default ARCH_APPLE
+ help
+ Say y here to enable support for reading eFuses on Apple SoCs
+ such as the M1. These are e.g. used to store factory programmed
+ calibration data required for the PCIe or the USB-C PHY.
+
+ This driver can also be built as a module. If so, the module will
+ be called nvmem-apple-efuses.
+
+config NVMEM_BCM_OCOTP
+ tristate "Broadcom On-Chip OTP Controller support"
+ depends on ARCH_BCM_IPROC || COMPILE_TEST
+ depends on HAS_IOMEM
+ default ARCH_BCM_IPROC
+ help
+ Say y here to enable read/write access to the Broadcom OTP
+ controller.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem-bcm-ocotp.
+
+config NVMEM_BRCM_NVRAM
+ tristate "Broadcom's NVRAM support"
+ depends on ARCH_BCM_5301X || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ This driver provides support for Broadcom's NVRAM that can be accessed
+ using I/O mapping.
+
+config NVMEM_IMX_IIM
+ tristate "i.MX IC Identification Module support"
+ depends on ARCH_MXC || COMPILE_TEST
+ help
+ This is a driver for the IC Identification Module (IIM) available on
+ i.MX SoCs, providing access to 4 Kbits of programmable
+ eFuses.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem-imx-iim.
+
+config NVMEM_IMX_OCOTP
+ tristate "i.MX 6/7/8 On-Chip OTP Controller support"
+ depends on ARCH_MXC || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ This is a driver for the On-Chip OTP Controller (OCOTP) available on
+ i.MX6 SoCs, providing access to 4 Kbits of one-time programmable
+ eFuses.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem-imx-ocotp.
+
+config NVMEM_IMX_OCOTP_SCU
+ tristate "i.MX8 SCU On-Chip OTP Controller support"
+ depends on IMX_SCU
+ depends on HAVE_ARM_SMCCC
+ help
+ This is a driver for the SCU On-Chip OTP Controller (OCOTP)
+ available on i.MX8 SoCs.
+
+config NVMEM_JZ4780_EFUSE
+ tristate "JZ4780 EFUSE Memory Support"
+ depends on MACH_INGENIC || COMPILE_TEST
+ depends on HAS_IOMEM
+ depends on OF
+ select REGMAP_MMIO
+ help
+ Say Y here to include support for JZ4780 efuse memory found on
+ all JZ4780 SoC based devices.
+ To compile this driver as a module, choose M here: the module
+ will be called nvmem_jz4780_efuse.
+
+config NVMEM_LAN9662_OTPC
+ tristate "Microchip LAN9662 OTP controller support"
+ depends on SOC_LAN966 || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ This driver enables the OTP controller available on Microchip LAN9662
+ SoCs. It controls the access to the OTP memory connected to it.
+
+config NVMEM_LAYERSCAPE_SFP
+ tristate "Layerscape SFP (Security Fuse Processor) support"
+ depends on ARCH_LAYERSCAPE || COMPILE_TEST
+ depends on HAS_IOMEM
+ select REGMAP_MMIO
+ help
+ This driver provides support to read the eFuses on Freescale
+ Layerscape SoC's. For example, the vendor provides a per part
+ unique ID there.
+
+ This driver can also be built as a module. If so, the module
+ will be called layerscape-sfp.
+
+config NVMEM_LPC18XX_EEPROM
+ tristate "NXP LPC18XX EEPROM Memory Support"
+ depends on ARCH_LPC18XX || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ Say Y here to include support for NXP LPC18xx EEPROM memory found in
+ NXP LPC185x/3x and LPC435x/3x/2x/1x devices.
+ To compile this driver as a module, choose M here: the module
+ will be called nvmem_lpc18xx_eeprom.
+
+config NVMEM_LPC18XX_OTP
+ tristate "NXP LPC18XX OTP Memory Support"
+ depends on ARCH_LPC18XX || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ Say Y here to include support for NXP LPC18xx OTP memory found on
+ all LPC18xx and LPC43xx devices.
+ To compile this driver as a module, choose M here: the module
+ will be called nvmem_lpc18xx_otp.
+
+config NVMEM_MESON_EFUSE
+ tristate "Amlogic Meson GX eFuse Support"
+ depends on (ARCH_MESON || COMPILE_TEST) && MESON_SM
+ help
+ This is a driver to retrieve specific values from the eFuse found on
+ the Amlogic Meson GX SoCs.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem_meson_efuse.
+
+config NVMEM_MESON_MX_EFUSE
+ tristate "Amlogic Meson6/Meson8/Meson8b eFuse Support"
+ depends on ARCH_MESON || COMPILE_TEST
+ help
+ This is a driver to retrieve specific values from the eFuse found on
+ the Amlogic Meson6, Meson8 and Meson8b SoCs.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem_meson_mx_efuse.
+
+config NVMEM_MICROCHIP_OTPC
+ tristate "Microchip OTPC support"
+ depends on ARCH_AT91 || COMPILE_TEST
+ help
+ This driver enable the OTP controller available on Microchip SAMA7G5
+ SoCs. It controlls the access to the OTP memory connected to it.
+
+config NVMEM_MTK_EFUSE
+ tristate "Mediatek SoCs EFUSE support"
+ depends on ARCH_MEDIATEK || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ This is a driver to access hardware related data like sensor
+ calibration, HDMI impedance etc.
+
+ This driver can also be built as a module. If so, the module
+ will be called efuse-mtk.
+
+config NVMEM_MXS_OCOTP
+ tristate "Freescale MXS On-Chip OTP Memory Support"
+ depends on ARCH_MXS || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ If you say Y here, you will get readonly access to the
+ One Time Programmable memory pages that are stored
+ on the Freescale i.MX23/i.MX28 processor.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem-mxs-ocotp.
+
+config NVMEM_NINTENDO_OTP
+ tristate "Nintendo Wii and Wii U OTP Support"
+ depends on WII || COMPILE_TEST
+ help
+ This is a driver exposing the OTP of a Nintendo Wii or Wii U console.
+
+ This memory contains common and per-console keys, signatures and
+ related data required to access peripherals.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem-nintendo-otp.
+
+config NVMEM_QCOM_QFPROM
+ tristate "QCOM QFPROM Support"
+ depends on ARCH_QCOM || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ Say y here to enable QFPROM support. The QFPROM provides access
+ functions for QFPROM data to rest of the drivers via nvmem interface.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem_qfprom.
+
+config NVMEM_RAVE_SP_EEPROM
+ tristate "Rave SP EEPROM Support"
+ depends on RAVE_SP_CORE
+ help
+ Say y here to enable Rave SP EEPROM support.
+
+config NVMEM_RMEM
+ tristate "Reserved Memory Based Driver Support"
+ depends on HAS_IOMEM
+ help
+ This driver maps reserved memory into an nvmem device. It might be
+ useful to expose information left by firmware in memory.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem-rmem.
+
+config NVMEM_ROCKCHIP_EFUSE
+ tristate "Rockchip eFuse Support"
+ depends on ARCH_ROCKCHIP || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ This is a simple drive to dump specified values of Rockchip SoC
+ from eFuse, such as cpu-leakage.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem_rockchip_efuse.
+
+config NVMEM_ROCKCHIP_OTP
+ tristate "Rockchip OTP controller support"
+ depends on ARCH_ROCKCHIP || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ This is a simple drive to dump specified values of Rockchip SoC
+ from otp, such as cpu-leakage.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem_rockchip_otp.
+
+config NVMEM_SC27XX_EFUSE
+ tristate "Spreadtrum SC27XX eFuse Support"
+ depends on MFD_SC27XX_PMIC || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ This is a simple driver to dump specified values of Spreadtrum
+ SC27XX PMICs from eFuse.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem-sc27xx-efuse.
+
+config NVMEM_SNVS_LPGPR
+ tristate "Support for Low Power General Purpose Register"
+ depends on ARCH_MXC || COMPILE_TEST
+ help
+ This is a driver for Low Power General Purpose Register (LPGPR) available on
+ i.MX6 and i.MX7 SoCs in Secure Non-Volatile Storage (SNVS) of this chip.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem-snvs-lpgpr.
+
+config NVMEM_SPMI_SDAM
+ tristate "SPMI SDAM Support"
+ depends on SPMI
+ help
+ This driver supports the Shared Direct Access Memory Module on
+ Qualcomm Technologies, Inc. PMICs. It provides the clients
+ an interface to read/write to the SDAM module's shared memory.
+
+config NVMEM_SPRD_EFUSE
+ tristate "Spreadtrum SoC eFuse Support"
+ depends on ARCH_SPRD || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ This is a simple driver to dump specified values of Spreadtrum
+ SoCs from eFuse.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem-sprd-efuse.
+
+config NVMEM_STM32_ROMEM
+ tristate "STMicroelectronics STM32 factory-programmed memory support"
+ depends on ARCH_STM32 || COMPILE_TEST
+ help
+ Say y here to enable read-only access for STMicroelectronics STM32
+ factory-programmed memory area.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem-stm32-romem.
+
+config NVMEM_SUNPLUS_OCOTP
+ tristate "Sunplus SoC OTP support"
+ depends on SOC_SP7021 || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ This is a driver for the On-chip OTP controller (OCOTP) available
+ on Sunplus SoCs. It provides access to 128 bytes of one-time
+ programmable eFuse.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem-sunplus-ocotp.
+
+config NVMEM_SUNXI_SID
+ tristate "Allwinner SoCs SID support"
+ depends on ARCH_SUNXI
+ help
+ This is a driver for the 'security ID' available on various Allwinner
+ devices.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem_sunxi_sid.
+
+config NVMEM_U_BOOT_ENV
+ tristate "U-Boot environment variables support"
+ depends on OF && MTD
+ select CRC32
+ help
+ U-Boot stores its setup as environment variables. This driver adds
+ support for verifying & exporting such data. It also exposes variables
+ as NVMEM cells so they can be referenced by other drivers.
+
+ Currently this drivers works only with env variables on top of MTD.
+
+ If compiled as module it will be called nvmem_u-boot-env.
+
+config NVMEM_UNIPHIER_EFUSE
+ tristate "UniPhier SoCs eFuse support"
+ depends on ARCH_UNIPHIER || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ This is a simple driver to dump specified values of UniPhier SoC
+ from eFuse.
+
+ This driver can also be built as a module. If so, the module
+ will be called nvmem-uniphier-efuse.
+
+config NVMEM_VF610_OCOTP
+ tristate "VF610 SoC OCOTP support"
+ depends on SOC_VF610 || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ This is a driver for the 'OCOTP' peripheral available on Vybrid
+ devices like VF5xx and VF6xx.
+
+ This driver can also be build as a module. If so, the module will
+ be called nvmem-vf610-ocotp.
+
+config NVMEM_ZYNQMP
+ bool "Xilinx ZYNQMP SoC nvmem firmware support"
+ depends on ARCH_ZYNQMP
+ help
+ This is a driver to access hardware related data like
+ soc revision, IDCODE... etc by using the firmware
+ interface.
+
+ If sure, say yes. If unsure, say no.
+
+endif