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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 help
41 Enable this driver to get read/write support to most SPI EEPROMs
42 and Cypress FRAMs,
43 after you configure the board init code to know about each eeprom
44 on your target board.
45
46 This driver can also be built as a module. If so, the module
47 will be called at25.
48
49config EEPROM_MAX6875
50 tristate "Maxim MAX6874/5 power supply supervisor"
51 depends on I2C
52 help
53 If you say yes here you get read-only support for the user EEPROM of
54 the Maxim MAX6874/5 EEPROM-programmable, quad power-supply
55 sequencer/supervisor.
56
57 All other features of this chip should be accessed via i2c-dev.
58
59 This driver can also be built as a module. If so, the module
60 will be called max6875.
61
62
63config EEPROM_93CX6
64 tristate "EEPROM 93CX6 support"
65 help
66 This is a driver for the EEPROM chipsets 93c46 and 93c66.
67 The driver supports both read as well as write commands.
68
69 If unsure, say N.
70
71config EEPROM_93XX46
72 tristate "Microwire EEPROM 93XX46 support"
73 depends on SPI && SYSFS
74 select REGMAP
75 select NVMEM
76 select NVMEM_SYSFS
77 help
78 Driver for the microwire EEPROM chipsets 93xx46x. The driver
79 supports both read and write commands and also the command to
80 erase the whole EEPROM.
81
82 This driver can also be built as a module. If so, the module
83 will be called eeprom_93xx46.
84
85 If unsure, say N.
86
87config EEPROM_DIGSY_MTC_CFG
88 bool "DigsyMTC display configuration EEPROMs device"
89 depends on GPIO_MPC5200 && SPI_GPIO
90 help
91 This option enables access to display configuration EEPROMs
92 on digsy_mtc board. You have to additionally select Microwire
93 EEPROM 93XX46 driver. sysfs entries will be created for that
94 EEPROM allowing to read/write the configuration data or to
95 erase the whole EEPROM.
96
97 If unsure, say N.
98
99config EEPROM_IDT_89HPESX
100 tristate "IDT 89HPESx PCIe-swtiches EEPROM / CSR support"
101 depends on I2C && SYSFS
102 help
103 Enable this driver to get read/write access to EEPROM / CSRs
104 over IDT PCIe-swtich i2c-slave interface.
105
106 This driver can also be built as a module. If so, the module
107 will be called idt_89hpesx.
108
109config EEPROM_EE1004
110 tristate "SPD EEPROMs on DDR4 memory modules"
111 depends on I2C && SYSFS
112 help
113 Enable this driver to get read support to SPD EEPROMs following
114 the JEDEC EE1004 standard. These are typically found on DDR4
115 SDRAM memory modules.
116
117 This driver can also be built as a module. If so, the module
118 will be called ee1004.
119
120endmenu
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 select REGMAP
36 select NVMEM
37 help
38 Enable this driver to get read/write support to most SPI EEPROMs,
39 after you configure the board init code to know about each eeprom
40 on your target board.
41
42 This driver can also be built as a module. If so, the module
43 will be called at25.
44
45config EEPROM_LEGACY
46 tristate "Old I2C EEPROM reader"
47 depends on I2C && SYSFS
48 help
49 If you say yes here you get read-only access to the EEPROM data
50 available on modern memory DIMMs and Sony Vaio laptops via I2C. Such
51 EEPROMs could theoretically be available on other devices as well.
52
53 This driver can also be built as a module. If so, the module
54 will be called eeprom.
55
56config EEPROM_MAX6875
57 tristate "Maxim MAX6874/5 power supply supervisor"
58 depends on I2C
59 help
60 If you say yes here you get read-only support for the user EEPROM of
61 the Maxim MAX6874/5 EEPROM-programmable, quad power-supply
62 sequencer/supervisor.
63
64 All other features of this chip should be accessed via i2c-dev.
65
66 This driver can also be built as a module. If so, the module
67 will be called max6875.
68
69
70config EEPROM_93CX6
71 tristate "EEPROM 93CX6 support"
72 help
73 This is a driver for the EEPROM chipsets 93c46 and 93c66.
74 The driver supports both read as well as write commands.
75
76 If unsure, say N.
77
78config EEPROM_93XX46
79 tristate "Microwire EEPROM 93XX46 support"
80 depends on SPI && SYSFS
81 select REGMAP
82 select NVMEM
83 help
84 Driver for the microwire EEPROM chipsets 93xx46x. The driver
85 supports both read and write commands and also the command to
86 erase the whole EEPROM.
87
88 This driver can also be built as a module. If so, the module
89 will be called eeprom_93xx46.
90
91 If unsure, say N.
92
93config EEPROM_DIGSY_MTC_CFG
94 bool "DigsyMTC display configuration EEPROMs device"
95 depends on GPIO_MPC5200 && SPI_GPIO
96 help
97 This option enables access to display configuration EEPROMs
98 on digsy_mtc board. You have to additionally select Microwire
99 EEPROM 93XX46 driver. sysfs entries will be created for that
100 EEPROM allowing to read/write the configuration data or to
101 erase the whole EEPROM.
102
103 If unsure, say N.
104
105endmenu