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132 lines
4.3 KiB
132 lines
4.3 KiB
# SPDX-License-Identifier: GPL-2.0-only |
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menu "EEPROM support" |
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config EEPROM_AT24 |
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tristate "I2C EEPROMs / RAMs / ROMs from most vendors" |
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depends on I2C && SYSFS |
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select NVMEM |
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select NVMEM_SYSFS |
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select REGMAP_I2C |
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help |
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Enable this driver to get read/write support to most I2C EEPROMs |
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and compatible devices like FRAMs, SRAMs, ROMs etc. After you |
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configure the driver to know about each chip on your target |
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board. Use these generic chip names, instead of vendor-specific |
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ones like at24c64, 24lc02 or fm24c04: |
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24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08, |
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24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024, 24c2048 |
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Unless you like data loss puzzles, always be sure that any chip |
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you configure as a 24c32 (32 kbit) or larger is NOT really a |
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24c16 (16 kbit) or smaller, and vice versa. Marking the chip |
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as read-only won't help recover from this. Also, if your chip |
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has any software write-protect mechanism you may want to review the |
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code to make sure this driver won't turn it on by accident. |
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If you use this with an SMBus adapter instead of an I2C adapter, |
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full functionality is not available. Only smaller devices are |
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supported (24c16 and below, max 4 kByte). |
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This driver can also be built as a module. If so, the module |
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will be called at24. |
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config EEPROM_AT25 |
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tristate "SPI EEPROMs from most vendors" |
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depends on SPI && SYSFS |
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select NVMEM |
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select NVMEM_SYSFS |
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help |
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Enable this driver to get read/write support to most SPI EEPROMs, |
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after you configure the board init code to know about each eeprom |
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on your target board. |
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This driver can also be built as a module. If so, the module |
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will be called at25. |
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config EEPROM_LEGACY |
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tristate "Old I2C EEPROM reader (DEPRECATED)" |
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depends on I2C && SYSFS |
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help |
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If you say yes here you get read-only access to the EEPROM data |
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available on modern memory DIMMs and Sony Vaio laptops via I2C. Such |
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EEPROMs could theoretically be available on other devices as well. |
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This driver is deprecated and will be removed soon, please use the |
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better at24 driver instead. |
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This driver can also be built as a module. If so, the module |
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will be called eeprom. |
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config EEPROM_MAX6875 |
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tristate "Maxim MAX6874/5 power supply supervisor" |
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depends on I2C |
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help |
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If you say yes here you get read-only support for the user EEPROM of |
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the Maxim MAX6874/5 EEPROM-programmable, quad power-supply |
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sequencer/supervisor. |
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All other features of this chip should be accessed via i2c-dev. |
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This driver can also be built as a module. If so, the module |
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will be called max6875. |
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config EEPROM_93CX6 |
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tristate "EEPROM 93CX6 support" |
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help |
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This is a driver for the EEPROM chipsets 93c46 and 93c66. |
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The driver supports both read as well as write commands. |
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If unsure, say N. |
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config EEPROM_93XX46 |
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tristate "Microwire EEPROM 93XX46 support" |
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depends on SPI && SYSFS |
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select REGMAP |
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select NVMEM |
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select NVMEM_SYSFS |
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help |
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Driver for the microwire EEPROM chipsets 93xx46x. The driver |
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supports both read and write commands and also the command to |
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erase the whole EEPROM. |
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This driver can also be built as a module. If so, the module |
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will be called eeprom_93xx46. |
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If unsure, say N. |
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config EEPROM_DIGSY_MTC_CFG |
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bool "DigsyMTC display configuration EEPROMs device" |
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depends on GPIO_MPC5200 && SPI_GPIO |
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help |
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This option enables access to display configuration EEPROMs |
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on digsy_mtc board. You have to additionally select Microwire |
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EEPROM 93XX46 driver. sysfs entries will be created for that |
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EEPROM allowing to read/write the configuration data or to |
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erase the whole EEPROM. |
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If unsure, say N. |
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config EEPROM_IDT_89HPESX |
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tristate "IDT 89HPESx PCIe-swtiches EEPROM / CSR support" |
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depends on I2C && SYSFS |
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help |
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Enable this driver to get read/write access to EEPROM / CSRs |
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over IDT PCIe-swtich i2c-slave interface. |
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This driver can also be built as a module. If so, the module |
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will be called idt_89hpesx. |
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config EEPROM_EE1004 |
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tristate "SPD EEPROMs on DDR4 memory modules" |
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depends on I2C && SYSFS |
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help |
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Enable this driver to get read support to SPD EEPROMs following |
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the JEDEC EE1004 standard. These are typically found on DDR4 |
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SDRAM memory modules. |
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This driver can also be built as a module. If so, the module |
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will be called ee1004. |
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endmenu
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