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ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
1da177e4 LT |
2 | menu "Self-contained MTD device drivers" |
3 | depends on MTD!=n | |
9310da0b | 4 | depends on HAS_IOMEM |
1da177e4 LT |
5 | |
6 | config MTD_PMC551 | |
7 | tristate "Ramix PMC551 PCI Mezzanine RAM card support" | |
ec98c681 | 8 | depends on PCI |
a8222a84 | 9 | help |
1da177e4 LT |
10 | This provides a MTD device driver for the Ramix PMC551 RAM PCI card |
11 | from Ramix Inc. <http://www.ramix.com/products/memory/pmc551.html>. | |
12 | These devices come in memory configurations from 32M - 1G. If you | |
13 | have one, you probably want to enable this. | |
14 | ||
15 | If this driver is compiled as a module you get the ability to select | |
16 | the size of the aperture window pointing into the devices memory. | |
17 | What this means is that if you have a 1G card, normally the kernel | |
18 | will use a 1G memory map as its view of the device. As a module, | |
19 | you can select a 1M window into the memory and the driver will | |
20 | "slide" the window around the PMC551's memory. This was | |
21 | particularly useful on the 2.2 kernels on PPC architectures as there | |
22 | was limited kernel space to deal with. | |
23 | ||
24 | config MTD_PMC551_BUGFIX | |
25 | bool "PMC551 256M DRAM Bugfix" | |
26 | depends on MTD_PMC551 | |
27 | help | |
28 | Some of Ramix's PMC551 boards with 256M configurations have invalid | |
29 | column and row mux values. This option will fix them, but will | |
30 | break other memory configurations. If unsure say N. | |
31 | ||
32 | config MTD_PMC551_DEBUG | |
33 | bool "PMC551 Debugging" | |
34 | depends on MTD_PMC551 | |
35 | help | |
36 | This option makes the PMC551 more verbose during its operation and | |
37 | is only really useful if you are developing on this driver or | |
38 | suspect a possible hardware or driver bug. If unsure say N. | |
39 | ||
40 | config MTD_MS02NV | |
41 | tristate "DEC MS02-NV NVRAM module support" | |
ec98c681 | 42 | depends on MACH_DECSTATION |
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43 | help |
44 | This is an MTD driver for the DEC's MS02-NV (54-20948-01) battery | |
45 | backed-up NVRAM module. The module was originally meant as an NFS | |
46 | accelerator. Say Y here if you have a DECstation 5000/2x0 or a | |
47 | DECsystem 5900 equipped with such a module. | |
48 | ||
be21ce11 MM |
49 | If you want to compile this driver as a module ( = code which can be |
50 | inserted in and removed from the running kernel whenever you want), | |
39f5fb30 | 51 | say M here and read <file:Documentation/kbuild/modules.txt>. |
4737f097 | 52 | The module will be called ms02-nv. |
be21ce11 | 53 | |
1d6432fe DB |
54 | config MTD_DATAFLASH |
55 | tristate "Support for AT45xxx DataFlash" | |
a11ed37c | 56 | depends on SPI_MASTER |
1d6432fe DB |
57 | help |
58 | This enables access to AT45xxx DataFlash chips, using SPI. | |
59 | Sometimes DataFlash chips are packaged inside MMC-format | |
60 | cards; at this writing, the MMC stack won't handle those. | |
61 | ||
8c64038e DB |
62 | config MTD_DATAFLASH_WRITE_VERIFY |
63 | bool "Verify DataFlash page writes" | |
64 | depends on MTD_DATAFLASH | |
65 | help | |
66 | This adds an extra check when data is written to the flash. | |
67 | It may help if you are verifying chip setup (timings etc) on | |
68 | your board. There is a rare possibility that even though the | |
69 | device thinks the write was successful, a bit could have been | |
70 | flipped accidentally due to device wear or something else. | |
71 | ||
34a82443 DB |
72 | config MTD_DATAFLASH_OTP |
73 | bool "DataFlash OTP support (Security Register)" | |
74 | depends on MTD_DATAFLASH | |
34a82443 DB |
75 | help |
76 | Newer DataFlash chips (revisions C and D) support 128 bytes of | |
77 | one-time-programmable (OTP) data. The first half may be written | |
78 | (once) with up to 64 bytes of data, such as a serial number or | |
79 | other key product data. The second half is programmed with a | |
80 | unique-to-each-chip bit pattern at the factory. | |
81 | ||
2f9f7628 | 82 | config MTD_M25P80 |
fa0a8c71 | 83 | tristate "Support most SPI Flash chips (AT26DF, M25P, W25X, ...)" |
e43b2061 | 84 | depends on SPI_MASTER && MTD_SPI_NOR |
4120f8d1 | 85 | select SPI_MEM |
2f9f7628 | 86 | help |
fa0a8c71 DB |
87 | This enables access to most modern SPI flash chips, used for |
88 | program and data storage. Series supported include Atmel AT26DF, | |
89 | Spansion S25SL, SST 25VF, ST M25P, and Winbond W25X. Other chips | |
90 | are supported as well. See the driver source for the current list, | |
91 | or to add other chips. | |
92 | ||
93 | Note that the original DataFlash chips (AT45 series, not AT26DF), | |
94 | need an entirely different driver. | |
95 | ||
96 | Set up your spi devices with the right board-specific platform data, | |
97 | if you want to specify device partitioning or to use a device which | |
98 | doesn't support the JEDEC ID instruction. | |
2f9f7628 | 99 | |
5dc17fa6 AL |
100 | config MTD_MCHP23K256 |
101 | tristate "Microchip 23K256 SRAM" | |
102 | depends on SPI_MASTER | |
103 | help | |
104 | This enables access to Microchip 23K256 SRAM chips, using SPI. | |
105 | ||
106 | Set up your spi devices with the right board-specific | |
107 | platform data, or a device tree description if you want to | |
108 | specify device partitioning | |
109 | ||
f18dbbb1 SH |
110 | config MTD_SPEAR_SMI |
111 | tristate "SPEAR MTD NOR Support through SMI controller" | |
112 | depends on PLAT_SPEAR | |
113 | default y | |
114 | help | |
115 | This enable SNOR support on SPEAR platforms using SMI controller | |
116 | ||
ec77e21b RM |
117 | config MTD_SST25L |
118 | tristate "Support SST25L (non JEDEC) SPI Flash chips" | |
119 | depends on SPI_MASTER | |
120 | help | |
121 | This enables access to the non JEDEC SST25L SPI flash chips, used | |
122 | for program and data storage. | |
123 | ||
124 | Set up your spi devices with the right board-specific platform data, | |
125 | if you want to specify device partitioning. | |
126 | ||
5fe42d5b | 127 | config MTD_BCM47XXSFLASH |
0a526341 | 128 | tristate "Support for serial flash on BCMA bus" |
efacc699 | 129 | depends on BCMA_SFLASH && (MIPS || ARM) |
5fe42d5b RM |
130 | help |
131 | BCMA bus can have various flash memories attached, they are | |
132 | registered by bcma as platform devices. This enables driver for | |
0a526341 | 133 | serial flash memories. |
5fe42d5b | 134 | |
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135 | config MTD_SLRAM |
136 | tristate "Uncached system RAM" | |
1da177e4 LT |
137 | help |
138 | If your CPU cannot cache all of the physical memory in your machine, | |
139 | you can still use it for storage or swap by using this driver to | |
140 | present it to the system as a Memory Technology Device. | |
141 | ||
142 | config MTD_PHRAM | |
143 | tristate "Physical system RAM" | |
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144 | help |
145 | This is a re-implementation of the slram driver above. | |
146 | ||
147 | Use this driver to access physical memory that the kernel proper | |
148 | doesn't have access to, memory beyond the mem=xxx limit, nvram, | |
149 | memory on the video card, etc... | |
150 | ||
151 | config MTD_LART | |
152 | tristate "28F160xx flash driver for LART" | |
ec98c681 | 153 | depends on SA1100_LART |
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154 | help |
155 | This enables the flash driver for LART. Please note that you do | |
156 | not need any mapping/chip driver for LART. This one does it all | |
157 | for you, so go disable all of those if you enabled some of them (: | |
158 | ||
159 | config MTD_MTDRAM | |
160 | tristate "Test driver using RAM" | |
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161 | help |
162 | This enables a test MTD device driver which uses vmalloc() to | |
163 | provide storage. You probably want to say 'N' unless you're | |
164 | testing stuff. | |
165 | ||
166 | config MTDRAM_TOTAL_SIZE | |
167 | int "MTDRAM device size in KiB" | |
168 | depends on MTD_MTDRAM | |
169 | default "4096" | |
170 | help | |
171 | This allows you to configure the total size of the MTD device | |
172 | emulated by the MTDRAM driver. If the MTDRAM driver is built | |
173 | as a module, it is also possible to specify this as a parameter when | |
174 | loading the module. | |
175 | ||
176 | config MTDRAM_ERASE_SIZE | |
177 | int "MTDRAM erase block size in KiB" | |
178 | depends on MTD_MTDRAM | |
179 | default "128" | |
180 | help | |
181 | This allows you to configure the size of the erase blocks in the | |
182 | device emulated by the MTDRAM driver. If the MTDRAM driver is built | |
183 | as a module, it is also possible to specify this as a parameter when | |
184 | loading the module. | |
185 | ||
acc8dadc JE |
186 | config MTD_BLOCK2MTD |
187 | tristate "MTD using block device" | |
ec98c681 | 188 | depends on BLOCK |
1da177e4 LT |
189 | help |
190 | This driver allows a block device to appear as an MTD. It would | |
191 | generally be used in the following cases: | |
192 | ||
193 | Using Compact Flash as an MTD, these usually present themselves to | |
194 | the system as an ATA drive. | |
195 | Testing MTD users (eg JFFS2) on large media and media that might | |
196 | be removed during a write (using the floppy drive). | |
197 | ||
1cbb4a1c CB |
198 | config MTD_POWERNV_FLASH |
199 | tristate "powernv flash MTD driver" | |
200 | depends on PPC_POWERNV | |
201 | help | |
202 | This provides an MTD device to access flash on powernv OPAL | |
203 | platforms from Linux. This device abstracts away the | |
204 | firmware interface for flash access. | |
205 | ||
1da177e4 LT |
206 | comment "Disk-On-Chip Device Drivers" |
207 | ||
efa2ca73 RJ |
208 | config MTD_DOCG3 |
209 | tristate "M-Systems Disk-On-Chip G3" | |
d13d19ec | 210 | select BCH |
714c0682 | 211 | select BCH_CONST_PARAMS if !MTD_NAND_ECC_SW_BCH |
bf65aaa6 | 212 | select BITREVERSE |
a8222a84 | 213 | help |
efa2ca73 RJ |
214 | This provides an MTD device driver for the M-Systems DiskOnChip |
215 | G3 devices. | |
216 | ||
217 | The driver provides access to G3 DiskOnChip, distributed by | |
218 | M-Systems and now Sandisk. The support is very experimental, | |
219 | and doesn't give access to any write operations. | |
220 | ||
d90db4a0 LJ |
221 | config MTD_ST_SPI_FSM |
222 | tristate "ST Microelectronics SPI FSM Serial Flash Controller" | |
dc002f99 | 223 | depends on ARCH_STI |
d90db4a0 LJ |
224 | help |
225 | This provides an MTD device driver for the ST Microelectronics | |
226 | SPI Fast Sequence Mode (FSM) Serial Flash Controller and support | |
227 | for a subset of connected Serial Flash devices. | |
228 | ||
d13d19ec RJ |
229 | if MTD_DOCG3 |
230 | config BCH_CONST_M | |
231 | default 14 | |
232 | config BCH_CONST_T | |
233 | default 4 | |
234 | endif | |
235 | ||
1da177e4 | 236 | endmenu |