1menu "EEPROM support" 2 3config EEPROM_AT24 4 tristate "I2C EEPROMs / RAMs / ROMs from most vendors" 5 depends on I2C && SYSFS 6 select REGMAP 7 select NVMEM 8 help 9 Enable this driver to get read/write support to most I2C EEPROMs 10 and compatible devices like FRAMs, SRAMs, ROMs etc. After you 11 configure the driver to know about each chip on your target 12 board. Use these generic chip names, instead of vendor-specific 13 ones like at24c64, 24lc02 or fm24c04: 14 15 24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08, 16 24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024 17 18 Unless you like data loss puzzles, always be sure that any chip 19 you configure as a 24c32 (32 kbit) or larger is NOT really a 20 24c16 (16 kbit) or smaller, and vice versa. Marking the chip 21 as read-only won't help recover from this. Also, if your chip 22 has any software write-protect mechanism you may want to review the 23 code to make sure this driver won't turn it on by accident. 24 25 If you use this with an SMBus adapter instead of an I2C adapter, 26 full functionality is not available. Only smaller devices are 27 supported (24c16 and below, max 4 kByte). 28 29 This driver can also be built as a module. If so, the module 30 will be called at24. 31 32config EEPROM_AT25 33 tristate "SPI EEPROMs from most vendors" 34 depends on SPI && SYSFS 35 help 36 Enable this driver to get read/write support to most SPI EEPROMs, 37 after you configure the board init code to know about each eeprom 38 on your target board. 39 40 This driver can also be built as a module. If so, the module 41 will be called at25. 42 43config EEPROM_LEGACY 44 tristate "Old I2C EEPROM reader" 45 depends on I2C && SYSFS 46 help 47 If you say yes here you get read-only access to the EEPROM data 48 available on modern memory DIMMs and Sony Vaio laptops via I2C. Such 49 EEPROMs could theoretically be available on other devices as well. 50 51 This driver can also be built as a module. If so, the module 52 will be called eeprom. 53 54config EEPROM_MAX6875 55 tristate "Maxim MAX6874/5 power supply supervisor" 56 depends on I2C 57 help 58 If you say yes here you get read-only support for the user EEPROM of 59 the Maxim MAX6874/5 EEPROM-programmable, quad power-supply 60 sequencer/supervisor. 61 62 All other features of this chip should be accessed via i2c-dev. 63 64 This driver can also be built as a module. If so, the module 65 will be called max6875. 66 67 68config EEPROM_93CX6 69 tristate "EEPROM 93CX6 support" 70 help 71 This is a driver for the EEPROM chipsets 93c46 and 93c66. 72 The driver supports both read as well as write commands. 73 74 If unsure, say N. 75 76config EEPROM_93XX46 77 tristate "Microwire EEPROM 93XX46 support" 78 depends on SPI && SYSFS 79 help 80 Driver for the microwire EEPROM chipsets 93xx46x. The driver 81 supports both read and write commands and also the command to 82 erase the whole EEPROM. 83 84 This driver can also be built as a module. If so, the module 85 will be called eeprom_93xx46. 86 87 If unsure, say N. 88 89config EEPROM_DIGSY_MTC_CFG 90 bool "DigsyMTC display configuration EEPROMs device" 91 depends on GPIO_MPC5200 && SPI_GPIO 92 help 93 This option enables access to display configuration EEPROMs 94 on digsy_mtc board. You have to additionally select Microwire 95 EEPROM 93XX46 driver. sysfs entries will be created for that 96 EEPROM allowing to read/write the configuration data or to 97 erase the whole EEPROM. 98 99 If unsure, say N. 100 101endmenu 102