Kconfig

  1# SPDX-License-Identifier: GPL-2.0-only
  2menu "EEPROM support"
  3
  4config EEPROM_AT24
  5	tristate "I2C EEPROMs / RAMs / ROMs from most vendors"
  6	depends on I2C && SYSFS
  7	select NVMEM
  8	select NVMEM_SYSFS
  9	select REGMAP
 10	select REGMAP_I2C
 11	help
 12	  Enable this driver to get read/write support to most I2C EEPROMs
 13	  and compatible devices like FRAMs, SRAMs, ROMs etc. After you
 14	  configure the driver to know about each chip on your target
 15	  board.  Use these generic chip names, instead of vendor-specific
 16	  ones like at24c64, 24lc02 or fm24c04:
 17
 18	     24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08,
 19	     24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024, 24c2048
 20
 21	  Unless you like data loss puzzles, always be sure that any chip
 22	  you configure as a 24c32 (32 kbit) or larger is NOT really a
 23	  24c16 (16 kbit) or smaller, and vice versa. Marking the chip
 24	  as read-only won't help recover from this. Also, if your chip
 25	  has any software write-protect mechanism you may want to review the
 26	  code to make sure this driver won't turn it on by accident.
 27
 28	  If you use this with an SMBus adapter instead of an I2C adapter,
 29	  full functionality is not available.  Only smaller devices are
 30	  supported (24c16 and below, max 4 kByte).
 31
 32	  This driver can also be built as a module.  If so, the module
 33	  will be called at24.
 34
 35config EEPROM_AT25
 36	tristate "SPI EEPROMs (FRAMs) from most vendors"
 37	depends on SPI && SYSFS
 38	select NVMEM
 39	select NVMEM_SYSFS
 40	select SPI_MEM
 41	help
 42	  Enable this driver to get read/write support to most SPI EEPROMs
 43	  and Cypress FRAMs,
 44	  after you configure the board init code to know about each eeprom
 45	  on your target board.
 46
 47	  This driver can also be built as a module.  If so, the module
 48	  will be called at25.
 49
 50config EEPROM_MAX6875
 51	tristate "Maxim MAX6874/5 power supply supervisor"
 52	depends on I2C
 53	help
 54	  If you say yes here you get read-only support for the user EEPROM of
 55	  the Maxim MAX6874/5 EEPROM-programmable, quad power-supply
 56	  sequencer/supervisor.
 57
 58	  All other features of this chip should be accessed via i2c-dev.
 59
 60	  This driver can also be built as a module.  If so, the module
 61	  will be called max6875.
 62
 63
 64config EEPROM_93CX6
 65	tristate "EEPROM 93CX6 support"
 66	help
 67	  This is a driver for the EEPROM chipsets 93c46 and 93c66.
 68	  The driver supports both read as well as write commands.
 69
 70	  If unsure, say N.
 71
 72config EEPROM_93XX46
 73	tristate "Microwire EEPROM 93XX46 support"
 74	depends on SPI && SYSFS
 75	select REGMAP
 76	select NVMEM
 77	select NVMEM_SYSFS
 78	help
 79	  Driver for the microwire EEPROM chipsets 93xx46x. The driver
 80	  supports both read and write commands and also the command to
 81	  erase the whole EEPROM.
 82
 83	  This driver can also be built as a module.  If so, the module
 84	  will be called eeprom_93xx46.
 85
 86	  If unsure, say N.
 87
 88config EEPROM_DIGSY_MTC_CFG
 89	bool "DigsyMTC display configuration EEPROMs device"
 90	depends on GPIO_MPC5200 && SPI_GPIO
 91	help
 92	  This option enables access to display configuration EEPROMs
 93	  on digsy_mtc board. You have to additionally select Microwire
 94	  EEPROM 93XX46 driver. sysfs entries will be created for that
 95	  EEPROM allowing to read/write the configuration data or to
 96	  erase the whole EEPROM.
 97
 98	  If unsure, say N.
 99
100config EEPROM_IDT_89HPESX
101	tristate "IDT 89HPESx PCIe-switches EEPROM / CSR support"
102	depends on I2C && SYSFS
103	help
104	  Enable this driver to get read/write access to EEPROM / CSRs
105	  over IDT PCIe-switch i2c-slave interface.
106
107	  This driver can also be built as a module. If so, the module
108	  will be called idt_89hpesx.
109
110config EEPROM_EE1004
111	tristate "SPD EEPROMs on DDR4 memory modules"
112	depends on I2C && SYSFS
113	select NVMEM
114	select NVMEM_SYSFS
115	help
116	  Enable this driver to get read support to SPD EEPROMs following
117	  the JEDEC EE1004 standard. These are typically found on DDR4
118	  SDRAM memory modules.
119
120	  This driver can also be built as a module.  If so, the module
121	  will be called ee1004.
122
123config EEPROM_M24LR
124	tristate "STMicroelectronics M24LR RFID/NFC EEPROM support"
125	depends on I2C && SYSFS
126	select REGMAP_I2C
127	select NVMEM
128	select NVMEM_SYSFS
129	help
130	  This enables support for STMicroelectronics M24LR RFID/NFC EEPROM
131	  chips. These dual-interface devices expose two I2C addresses:
132	  one for EEPROM memory access and another for control and system
133	  configuration (e.g. UID, password handling).
134
135	  This driver provides a sysfs interface for control functions and
136	  integrates with the nvmem subsystem for EEPROM access.
137
138	  To compile this driver as a module, choose M here: the
139	  module will be called m24lr.
140
141endmenu