1ec8f24b7SThomas Gleixner# SPDX-License-Identifier: GPL-2.0-only 25195e509SWolfram Sangmenu "EEPROM support" 35195e509SWolfram Sang 4dd7f8dbeSJean Delvareconfig EEPROM_AT24 581e34f91SLars Poeschel tristate "I2C EEPROMs / RAMs / ROMs from most vendors" 6781b8a2aSWolfram Sang depends on I2C && SYSFS 757d15550SAndrew Lunn select NVMEM 81b562183SArseny Solokha select NVMEM_SYSFS 97f3c782bSRandy Dunlap select REGMAP 105c015258SHeiner Kallweit select REGMAP_I2C 115195e509SWolfram Sang help 1281e34f91SLars Poeschel Enable this driver to get read/write support to most I2C EEPROMs 1381e34f91SLars Poeschel and compatible devices like FRAMs, SRAMs, ROMs etc. After you 1481e34f91SLars Poeschel configure the driver to know about each chip on your target 1581e34f91SLars Poeschel board. Use these generic chip names, instead of vendor-specific 1681e34f91SLars Poeschel ones like at24c64, 24lc02 or fm24c04: 175195e509SWolfram Sang 185195e509SWolfram Sang 24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08, 1937cf28d3SAdrian Bunk 24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024, 24c2048 205195e509SWolfram Sang 215195e509SWolfram Sang Unless you like data loss puzzles, always be sure that any chip 225195e509SWolfram Sang you configure as a 24c32 (32 kbit) or larger is NOT really a 235195e509SWolfram Sang 24c16 (16 kbit) or smaller, and vice versa. Marking the chip 245195e509SWolfram Sang as read-only won't help recover from this. Also, if your chip 255195e509SWolfram Sang has any software write-protect mechanism you may want to review the 265195e509SWolfram Sang code to make sure this driver won't turn it on by accident. 275195e509SWolfram Sang 285195e509SWolfram Sang If you use this with an SMBus adapter instead of an I2C adapter, 295195e509SWolfram Sang full functionality is not available. Only smaller devices are 305195e509SWolfram Sang supported (24c16 and below, max 4 kByte). 315195e509SWolfram Sang 325195e509SWolfram Sang This driver can also be built as a module. If so, the module 335195e509SWolfram Sang will be called at24. 345195e509SWolfram Sang 35dd7f8dbeSJean Delvareconfig EEPROM_AT25 36fd307a4aSJiri Prchal tristate "SPI EEPROMs (FRAMs) from most vendors" 37e51d565fSWolfram Sang depends on SPI && SYSFS 385a99f570SAndrew Lunn select NVMEM 391b562183SArseny Solokha select NVMEM_SYSFS 40e51d565fSWolfram Sang help 41fd307a4aSJiri Prchal Enable this driver to get read/write support to most SPI EEPROMs 42fd307a4aSJiri Prchal and Cypress FRAMs, 43e51d565fSWolfram Sang after you configure the board init code to know about each eeprom 44e51d565fSWolfram Sang on your target board. 45e51d565fSWolfram Sang 46e51d565fSWolfram Sang This driver can also be built as a module. If so, the module 47e51d565fSWolfram Sang will be called at25. 48e51d565fSWolfram Sang 494b364f23SWolfram Sangconfig EEPROM_MAX6875 504b364f23SWolfram Sang tristate "Maxim MAX6874/5 power supply supervisor" 5165929215SGreg Kroah-Hartman depends on I2C 524b364f23SWolfram Sang help 534b364f23SWolfram Sang If you say yes here you get read-only support for the user EEPROM of 544b364f23SWolfram Sang the Maxim MAX6874/5 EEPROM-programmable, quad power-supply 554b364f23SWolfram Sang sequencer/supervisor. 564b364f23SWolfram Sang 574b364f23SWolfram Sang All other features of this chip should be accessed via i2c-dev. 584b364f23SWolfram Sang 594b364f23SWolfram Sang This driver can also be built as a module. If so, the module 604b364f23SWolfram Sang will be called max6875. 614b364f23SWolfram Sang 624b364f23SWolfram Sang 630eb6da20SWolfram Sangconfig EEPROM_93CX6 640eb6da20SWolfram Sang tristate "EEPROM 93CX6 support" 650eb6da20SWolfram Sang help 660eb6da20SWolfram Sang This is a driver for the EEPROM chipsets 93c46 and 93c66. 670eb6da20SWolfram Sang The driver supports both read as well as write commands. 680eb6da20SWolfram Sang 690eb6da20SWolfram Sang If unsure, say N. 700eb6da20SWolfram Sang 7106b4501eSAnatolij Gustschinconfig EEPROM_93XX46 7206b4501eSAnatolij Gustschin tristate "Microwire EEPROM 93XX46 support" 7306b4501eSAnatolij Gustschin depends on SPI && SYSFS 741c4b6e2cSAndrew Lunn select REGMAP 751c4b6e2cSAndrew Lunn select NVMEM 761b562183SArseny Solokha select NVMEM_SYSFS 7706b4501eSAnatolij Gustschin help 7806b4501eSAnatolij Gustschin Driver for the microwire EEPROM chipsets 93xx46x. The driver 7906b4501eSAnatolij Gustschin supports both read and write commands and also the command to 8006b4501eSAnatolij Gustschin erase the whole EEPROM. 8106b4501eSAnatolij Gustschin 8206b4501eSAnatolij Gustschin This driver can also be built as a module. If so, the module 8306b4501eSAnatolij Gustschin will be called eeprom_93xx46. 8406b4501eSAnatolij Gustschin 8506b4501eSAnatolij Gustschin If unsure, say N. 8606b4501eSAnatolij Gustschin 87469dded1SAnatolij Gustschinconfig EEPROM_DIGSY_MTC_CFG 88469dded1SAnatolij Gustschin bool "DigsyMTC display configuration EEPROMs device" 89001ef5e4SPaul Bolle depends on GPIO_MPC5200 && SPI_GPIO 90469dded1SAnatolij Gustschin help 91469dded1SAnatolij Gustschin This option enables access to display configuration EEPROMs 92469dded1SAnatolij Gustschin on digsy_mtc board. You have to additionally select Microwire 93469dded1SAnatolij Gustschin EEPROM 93XX46 driver. sysfs entries will be created for that 94469dded1SAnatolij Gustschin EEPROM allowing to read/write the configuration data or to 95469dded1SAnatolij Gustschin erase the whole EEPROM. 96469dded1SAnatolij Gustschin 97469dded1SAnatolij Gustschin If unsure, say N. 98469dded1SAnatolij Gustschin 99cfad6425SSerge Seminconfig EEPROM_IDT_89HPESX 100*d8da4f19SLuo Yifan tristate "IDT 89HPESx PCIe-switches EEPROM / CSR support" 101cfad6425SSerge Semin depends on I2C && SYSFS 102cfad6425SSerge Semin help 103cfad6425SSerge Semin Enable this driver to get read/write access to EEPROM / CSRs 104*d8da4f19SLuo Yifan over IDT PCIe-switch i2c-slave interface. 105cfad6425SSerge Semin 106cfad6425SSerge Semin This driver can also be built as a module. If so, the module 107cfad6425SSerge Semin will be called idt_89hpesx. 108cfad6425SSerge Semin 1093b7584a2SJean Delvareconfig EEPROM_EE1004 1103b7584a2SJean Delvare tristate "SPD EEPROMs on DDR4 memory modules" 1113b7584a2SJean Delvare depends on I2C && SYSFS 11279d0df36SArmin Wolf select NVMEM 11379d0df36SArmin Wolf select NVMEM_SYSFS 1143b7584a2SJean Delvare help 1153b7584a2SJean Delvare Enable this driver to get read support to SPD EEPROMs following 1163b7584a2SJean Delvare the JEDEC EE1004 standard. These are typically found on DDR4 1173b7584a2SJean Delvare SDRAM memory modules. 1183b7584a2SJean Delvare 1193b7584a2SJean Delvare This driver can also be built as a module. If so, the module 1203b7584a2SJean Delvare will be called ee1004. 1213b7584a2SJean Delvare 1225195e509SWolfram Sangendmenu 123