8 bool "Enable MTD layer"
10 Enable the MTD stack, necessary to interact with NAND, NOR,
11 SPI-NOR, SPI-NAND, OneNAND, etc.
16 bool "Enable Driver Model for MTD drivers"
19 Enable driver model for Memory Technology Devices (MTD), such as
20 flash, RAM and similar chips, often used for solid state file
21 systems on embedded devices.
24 bool "Enable parallel NOR flash support"
26 Enable support for parallel NOR flash.
29 bool "Enable MTD device concatenation"
31 Enable support for concatenating multiple physical MTD devices
32 into a single logical device. The larger logical device can then
36 bool "Enable block device access to MTD devices"
39 Enable support for block device access to MTD devices
40 using blk_ops abstraction.
42 config SYS_MTDPARTS_RUNTIME
43 bool "Allow MTDPARTS to be configured at runtime"
45 This option allows to call the function board_mtdparts_default to
46 dynamically build the variables mtdids and mtdparts at runtime.
48 config FLASH_CFI_DRIVER
49 bool "Enable CFI Flash driver"
50 select USE_SYS_MAX_FLASH_BANKS
52 The Common Flash Interface specification was developed by Intel,
53 AMD and other flash manufactures. It provides a universal method
54 for probing the capabilities of flash devices. If you wish to
55 support any device that is CFI-compliant, you need to enable this
56 option. Visit <http://www.amd.com/products/nvd/overview/cfi.html>
57 for more information on CFI.
60 prompt "Data-width of the flash device"
61 depends on FLASH_CFI_DRIVER
62 default SYS_FLASH_CFI_WIDTH_8BIT
64 config SYS_FLASH_CFI_WIDTH_8BIT
65 bool "Data-width of the device is 8-bit"
67 config SYS_FLASH_CFI_WIDTH_16BIT
68 bool "Data-width of the device is 16-bit"
70 config SYS_FLASH_CFI_WIDTH_32BIT
71 bool "Data-width of the device is 32-bit"
73 config SYS_FLASH_CFI_WIDTH_64BIT
74 bool "Data-width of the device is 64-bit"
78 config SYS_FLASH_CFI_WIDTH
80 depends on FLASH_CFI_DRIVER
81 default 0x1 if SYS_FLASH_CFI_WIDTH_8BIT
82 default 0x2 if SYS_FLASH_CFI_WIDTH_16BIT
83 default 0x4 if SYS_FLASH_CFI_WIDTH_32BIT
84 default 0x8 if SYS_FLASH_CFI_WIDTH_64BIT
86 This must be kept in sync with the table in include/flash.h
88 config FLASH_SHOW_PROGRESS
89 int "Print out a countdown durinng writes"
90 depends on FLASH_CFI_DRIVER
93 If set to a non-zero value, print out countdown digits and dots.
94 Recommended value: 45 (9..1) for 80 column displays, 15 (3..1) for 40
98 bool "Enable Driver Model for CFI Flash driver"
100 select FLASH_CFI_DRIVER
102 The Common Flash Interface specification was developed by Intel,
103 AMD and other flash manufactures. It provides a universal method
104 for probing the capabilities of flash devices. If you wish to
105 support any device that is CFI-compliant, you need to enable this
106 option. Visit <http://www.amd.com/products/nvd/overview/cfi.html>
107 for more information on CFI.
109 config CFI_FLASH_USE_WEAK_ACCESSORS
110 bool "Allow read/write functions to be overridden"
111 depends on FLASH_CFI_DRIVER
113 Enable this option to allow for the flash_{read,write}{8,16,32,64}
114 functions to be overridden by the platform.
116 config SYS_CFI_FLASH_STATUS_POLL
117 bool "Poll status on AMD flash chips"
118 depends on FLASH_CFI_DRIVER
120 config SYS_FLASH_USE_BUFFER_WRITE
121 bool "Enable buffered writes to flash"
122 depends on FLASH_CFI_DRIVER
124 Use buffered writes to flash.
126 config SYS_FLASH_EMPTY_INFO
127 bool "Enable displaying empty sectors in flash info"
128 depends on FLASH_CFI_DRIVER
130 config FLASH_SPANSION_S29WS_N
131 bool "Non-standard s29ws-n MirrorBit flash"
132 depends on FLASH_CFI_DRIVER
134 Enable this if the s29ws-n MirrorBit flash has non-standard addresses
135 for buffered write commands.
138 bool "Enable CFI MTD driver"
139 depends on FLASH_CFI_DRIVER && MTD
141 This option enables the building of the cfi_mtd driver
142 in the drivers directory. The driver exports CFI flash
145 config SYS_FLASH_PROTECTION
146 bool "Use hardware flash protection"
147 depends on FLASH_CFI_DRIVER
149 If defined, hardware flash sectors protection is used
150 instead of U-Boot software protection.
153 bool "Define extra elements in CFI for flash geometry"
154 depends on FLASH_CFI_DRIVER
156 Define if the flash driver uses extra elements in the
157 common flash structure for storing flash geometry.
159 config SYS_FLASH_QUIET_TEST
160 bool "Disable printing a warning about not recognizing some flash banks"
161 depends on FLASH_CFI_DRIVER
163 If this option is enabled, the common CFI flash doesn't print it's
164 warning upon not recognized FLASH banks. This is useful, if some of
165 the configured banks are only optionally available.
167 config SYS_FLASH_CHECKSUM
168 bool "Compute and print flash CRC if 'flashchecksum' is set in the environment"
169 depends on MTD_NOR_FLASH
171 If the variable flashchecksum is set in the environment, perform a CRC
172 of the flash and print the value to console.
175 bool "Compare writes to NOR flash with source location"
176 depends on MTD_NOR_FLASH
178 If enabled, the content of the flash (destination) is compared
179 against the source after the write operation. An error message will
180 be printed when the contents are not identical. Please note that
181 this option is useless in nearly all cases, since such flash
182 programming errors usually are detected earlier while
183 unprotecting/erasing/programming. Please only enable this option if
184 you really know what you are doing.
187 bool "Altera Generic Quad SPI Controller"
189 select USE_SYS_MAX_FLASH_BANKS
191 This enables access to Altera EPCQ/EPCS flash chips using the
192 Altera Generic Quad SPI Controller. The controller converts SPI
193 NOR flash to parallel flash interface. Please find details on the
194 "Embedded Peripherals IP User Guide" of Altera.
196 config RENESAS_RPC_HF
197 bool "Renesas R-Car Gen3 RPC HyperFlash driver"
198 depends on RCAR_GEN3 && DM_MTD
200 This enables access to HyperFlash memory through the Renesas
201 R-Car Gen3 RPC controller.
204 bool "HyperBus controller driver for AM65x SoC"
205 depends on MULTIPLEXER && MUX_MMIO
207 This is the driver for HyperBus controller on TI's AM65x and
211 bool "STM32 MCU Flash driver"
212 depends on ARCH_STM32
213 select USE_SYS_MAX_FLASH_BANKS
215 This is the driver of embedded flash for some STMicroelectronics
218 config SYS_MAX_FLASH_SECT
219 int "Maximum number of sectors on a flash chip"
220 depends on MTD_NOR_FLASH || FLASH_CFI_DRIVER
223 config SAMSUNG_ONENAND
224 bool "Samsung OneNAND driver support"
226 config USE_SYS_MAX_FLASH_BANKS
227 bool "Enable Max number of Flash memory banks"
229 When this option is enabled, the CONFIG_SYS_MAX_FLASH_BANKS
232 config SYS_MAX_FLASH_BANKS
233 int "Max number of Flash memory banks"
234 depends on USE_SYS_MAX_FLASH_BANKS
237 Max number of Flash memory banks using by the MTD framework, in the
238 flash CFI driver and in some other driver to define the flash_info
241 config SYS_MAX_FLASH_BANKS_DETECT
242 bool "Detection of flash banks number in CFI driver"
243 depends on CFI_FLASH && FLASH_CFI_DRIVER
245 This enables detection of number of flash banks in CFI driver,
246 to reduce the effective number of flash bank, between 0 and
247 CONFIG_SYS_MAX_FLASH_BANKS
249 source "drivers/mtd/nand/Kconfig"
251 config SYS_NAND_MAX_OOBFREE
252 int "Maximum number of free OOB regions supported"
253 depends on SAMSUNG_ONENAND || MTD_RAW_NAND
257 Set the maximum number of free OOB regions supported. Useful for
258 reducing image size, especially with SPL.
260 config SYS_NAND_MAX_ECCPOS
261 int "Maximum number of ECC bytes supported"
262 depends on SAMSUNG_ONENAND || MTD_RAW_NAND
266 Set the maximum number of ECC bytes supported. Useful for reducing
267 image size, especially with SPL.
269 config SYS_NAND_MAX_CHIPS
271 depends on MTD_RAW_NAND || CMD_ONENAND || TARGET_S5PC210_UNIVERSAL || \
275 The maximum number of NAND chips per device to be supported.
277 source "drivers/mtd/spi/Kconfig"
279 source "drivers/mtd/ubi/Kconfig"
281 source "drivers/mtd/nvmxip/Kconfig"