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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 NVMEM
7 help
8 Enable this driver to get read/write support to most I2C EEPROMs
9 and compatible devices like FRAMs, SRAMs, ROMs etc. After you
10 configure the driver to know about each chip on your target
11 board. Use these generic chip names, instead of vendor-specific
12 ones like at24c64, 24lc02 or fm24c04:
13
14 24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08,
15 24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024
16
17 Unless you like data loss puzzles, always be sure that any chip
18 you configure as a 24c32 (32 kbit) or larger is NOT really a
19 24c16 (16 kbit) or smaller, and vice versa. Marking the chip
20 as read-only won't help recover from this. Also, if your chip
21 has any software write-protect mechanism you may want to review the
22 code to make sure this driver won't turn it on by accident.
23
24 If you use this with an SMBus adapter instead of an I2C adapter,
25 full functionality is not available. Only smaller devices are
26 supported (24c16 and below, max 4 kByte).
27
28 This driver can also be built as a module. If so, the module
29 will be called at24.
30
31config EEPROM_AT25
32 tristate "SPI EEPROMs from most vendors"
33 depends on SPI && SYSFS
34 select NVMEM
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 select REGMAP
80 select NVMEM
81 help
82 Driver for the microwire EEPROM chipsets 93xx46x. The driver
83 supports both read and write commands and also the command to
84 erase the whole EEPROM.
85
86 This driver can also be built as a module. If so, the module
87 will be called eeprom_93xx46.
88
89 If unsure, say N.
90
91config EEPROM_DIGSY_MTC_CFG
92 bool "DigsyMTC display configuration EEPROMs device"
93 depends on GPIO_MPC5200 && SPI_GPIO
94 help
95 This option enables access to display configuration EEPROMs
96 on digsy_mtc board. You have to additionally select Microwire
97 EEPROM 93XX46 driver. sysfs entries will be created for that
98 EEPROM allowing to read/write the configuration data or to
99 erase the whole EEPROM.
100
101 If unsure, say N.
102
103endmenu