15195e509SWolfram Sangmenu "EEPROM support" 25195e509SWolfram Sang 3dd7f8dbeSJean Delvareconfig EEPROM_AT24 481e34f91SLars Poeschel tristate "I2C EEPROMs / RAMs / ROMs from most vendors" 5781b8a2aSWolfram Sang depends on I2C && SYSFS 657d15550SAndrew Lunn select REGMAP 757d15550SAndrew Lunn select NVMEM 85195e509SWolfram Sang help 981e34f91SLars Poeschel Enable this driver to get read/write support to most I2C EEPROMs 1081e34f91SLars Poeschel and compatible devices like FRAMs, SRAMs, ROMs etc. After you 1181e34f91SLars Poeschel configure the driver to know about each chip on your target 1281e34f91SLars Poeschel board. Use these generic chip names, instead of vendor-specific 1381e34f91SLars Poeschel ones like at24c64, 24lc02 or fm24c04: 145195e509SWolfram Sang 155195e509SWolfram Sang 24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08, 165195e509SWolfram Sang 24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024 175195e509SWolfram Sang 185195e509SWolfram Sang Unless you like data loss puzzles, always be sure that any chip 195195e509SWolfram Sang you configure as a 24c32 (32 kbit) or larger is NOT really a 205195e509SWolfram Sang 24c16 (16 kbit) or smaller, and vice versa. Marking the chip 215195e509SWolfram Sang as read-only won't help recover from this. Also, if your chip 225195e509SWolfram Sang has any software write-protect mechanism you may want to review the 235195e509SWolfram Sang code to make sure this driver won't turn it on by accident. 245195e509SWolfram Sang 255195e509SWolfram Sang If you use this with an SMBus adapter instead of an I2C adapter, 265195e509SWolfram Sang full functionality is not available. Only smaller devices are 275195e509SWolfram Sang supported (24c16 and below, max 4 kByte). 285195e509SWolfram Sang 295195e509SWolfram Sang This driver can also be built as a module. If so, the module 305195e509SWolfram Sang will be called at24. 315195e509SWolfram Sang 32dd7f8dbeSJean Delvareconfig EEPROM_AT25 33e51d565fSWolfram Sang tristate "SPI EEPROMs from most vendors" 34e51d565fSWolfram Sang depends on SPI && SYSFS 355a99f570SAndrew Lunn select REGMAP 365a99f570SAndrew Lunn select NVMEM 37e51d565fSWolfram Sang help 38e51d565fSWolfram Sang Enable this driver to get read/write support to most SPI EEPROMs, 39e51d565fSWolfram Sang after you configure the board init code to know about each eeprom 40e51d565fSWolfram Sang on your target board. 41e51d565fSWolfram Sang 42e51d565fSWolfram Sang This driver can also be built as a module. If so, the module 43e51d565fSWolfram Sang will be called at25. 44e51d565fSWolfram Sang 45dd7f8dbeSJean Delvareconfig EEPROM_LEGACY 462e157888SWolfram Sang tristate "Old I2C EEPROM reader" 47dd7f8dbeSJean Delvare depends on I2C && SYSFS 482e157888SWolfram Sang help 492e157888SWolfram Sang If you say yes here you get read-only access to the EEPROM data 502e157888SWolfram Sang available on modern memory DIMMs and Sony Vaio laptops via I2C. Such 512e157888SWolfram Sang EEPROMs could theoretically be available on other devices as well. 522e157888SWolfram Sang 532e157888SWolfram Sang This driver can also be built as a module. If so, the module 542e157888SWolfram Sang will be called eeprom. 552e157888SWolfram Sang 564b364f23SWolfram Sangconfig EEPROM_MAX6875 574b364f23SWolfram Sang tristate "Maxim MAX6874/5 power supply supervisor" 5865929215SGreg Kroah-Hartman depends on I2C 594b364f23SWolfram Sang help 604b364f23SWolfram Sang If you say yes here you get read-only support for the user EEPROM of 614b364f23SWolfram Sang the Maxim MAX6874/5 EEPROM-programmable, quad power-supply 624b364f23SWolfram Sang sequencer/supervisor. 634b364f23SWolfram Sang 644b364f23SWolfram Sang All other features of this chip should be accessed via i2c-dev. 654b364f23SWolfram Sang 664b364f23SWolfram Sang This driver can also be built as a module. If so, the module 674b364f23SWolfram Sang will be called max6875. 684b364f23SWolfram Sang 694b364f23SWolfram Sang 700eb6da20SWolfram Sangconfig EEPROM_93CX6 710eb6da20SWolfram Sang tristate "EEPROM 93CX6 support" 720eb6da20SWolfram Sang help 730eb6da20SWolfram Sang This is a driver for the EEPROM chipsets 93c46 and 93c66. 740eb6da20SWolfram Sang The driver supports both read as well as write commands. 750eb6da20SWolfram Sang 760eb6da20SWolfram Sang If unsure, say N. 770eb6da20SWolfram Sang 7806b4501eSAnatolij Gustschinconfig EEPROM_93XX46 7906b4501eSAnatolij Gustschin tristate "Microwire EEPROM 93XX46 support" 8006b4501eSAnatolij Gustschin depends on SPI && SYSFS 81*1c4b6e2cSAndrew Lunn select REGMAP 82*1c4b6e2cSAndrew Lunn select NVMEM 8306b4501eSAnatolij Gustschin help 8406b4501eSAnatolij Gustschin Driver for the microwire EEPROM chipsets 93xx46x. The driver 8506b4501eSAnatolij Gustschin supports both read and write commands and also the command to 8606b4501eSAnatolij Gustschin erase the whole EEPROM. 8706b4501eSAnatolij Gustschin 8806b4501eSAnatolij Gustschin This driver can also be built as a module. If so, the module 8906b4501eSAnatolij Gustschin will be called eeprom_93xx46. 9006b4501eSAnatolij Gustschin 9106b4501eSAnatolij Gustschin If unsure, say N. 9206b4501eSAnatolij Gustschin 93469dded1SAnatolij Gustschinconfig EEPROM_DIGSY_MTC_CFG 94469dded1SAnatolij Gustschin bool "DigsyMTC display configuration EEPROMs device" 95001ef5e4SPaul Bolle depends on GPIO_MPC5200 && SPI_GPIO 96469dded1SAnatolij Gustschin help 97469dded1SAnatolij Gustschin This option enables access to display configuration EEPROMs 98469dded1SAnatolij Gustschin on digsy_mtc board. You have to additionally select Microwire 99469dded1SAnatolij Gustschin EEPROM 93XX46 driver. sysfs entries will be created for that 100469dded1SAnatolij Gustschin EEPROM allowing to read/write the configuration data or to 101469dded1SAnatolij Gustschin erase the whole EEPROM. 102469dded1SAnatolij Gustschin 103469dded1SAnatolij Gustschin If unsure, say N. 104469dded1SAnatolij Gustschin 1055195e509SWolfram Sangendmenu 106