7 bool "Enable MTD layer"
9 Enable the MTD stack, necessary to interact with NAND, NOR,
10 SPI-NOR, SPI-NAND, OneNAND, etc.
13 bool "Enable Driver Model for MTD drivers"
16 Enable driver model for Memory Technology Devices (MTD), such as
17 flash, RAM and similar chips, often used for solid state file
18 systems on embedded devices.
21 bool "Enable parallel NOR flash support"
23 Enable support for parallel NOR flash.
26 bool "Enable MTD device concatenation"
29 Enable support for concatenating multiple physical MTD devices
30 into a single logical device. The larger logical device can then
33 config SYS_MTDPARTS_RUNTIME
34 bool "Allow MTDPARTS to be configured at runtime"
37 This option allows to call the function board_mtdparts_default to
38 dynamically build the variables mtdids and mtdparts at runtime.
40 config FLASH_CFI_DRIVER
41 bool "Enable CFI Flash driver"
42 select USE_SYS_MAX_FLASH_BANKS
44 The Common Flash Interface specification was developed by Intel,
45 AMD and other flash manufactures. It provides a universal method
46 for probing the capabilities of flash devices. If you wish to
47 support any device that is CFI-compliant, you need to enable this
48 option. Visit <http://www.amd.com/products/nvd/overview/cfi.html>
49 for more information on CFI.
52 prompt "Data-width of the flash device"
53 depends on FLASH_CFI_DRIVER
54 default SYS_FLASH_CFI_WIDTH_8BIT
56 config SYS_FLASH_CFI_WIDTH_8BIT
57 bool "Data-width of the device is 8-bit"
59 config SYS_FLASH_CFI_WIDTH_16BIT
60 bool "Data-width of the device is 16-bit"
62 config SYS_FLASH_CFI_WIDTH_32BIT
63 bool "Data-width of the device is 32-bit"
65 config SYS_FLASH_CFI_WIDTH_64BIT
66 bool "Data-width of the device is 64-bit"
70 config SYS_FLASH_CFI_WIDTH
72 depends on FLASH_CFI_DRIVER
73 default 0x1 if SYS_FLASH_CFI_WIDTH_8BIT
74 default 0x2 if SYS_FLASH_CFI_WIDTH_16BIT
75 default 0x4 if SYS_FLASH_CFI_WIDTH_32BIT
76 default 0x8 if SYS_FLASH_CFI_WIDTH_64BIT
78 This must be kept in sync with the table in include/flash.h
80 config FLASH_SHOW_PROGRESS
81 int "Print out a countdown durinng writes"
82 depends on FLASH_CFI_DRIVER
85 If set to a non-zero value, print out countdown digits and dots.
86 Recommended value: 45 (9..1) for 80 column displays, 15 (3..1) for 40
90 bool "Enable Driver Model for CFI Flash driver"
92 select FLASH_CFI_DRIVER
94 The Common Flash Interface specification was developed by Intel,
95 AMD and other flash manufactures. It provides a universal method
96 for probing the capabilities of flash devices. If you wish to
97 support any device that is CFI-compliant, you need to enable this
98 option. Visit <http://www.amd.com/products/nvd/overview/cfi.html>
99 for more information on CFI.
101 config CFI_FLASH_USE_WEAK_ACCESSORS
102 bool "Allow read/write functions to be overridden"
103 depends on FLASH_CFI_DRIVER
105 Enable this option to allow for the flash_{read,write}{8,16,32,64}
106 functions to be overridden by the platform.
108 config SYS_CFI_FLASH_STATUS_POLL
109 bool "Poll status on AMD flash chips"
110 depends on FLASH_CFI_DRIVER
112 config SYS_FLASH_USE_BUFFER_WRITE
113 bool "Enable buffered writes to flash"
114 depends on FLASH_CFI_DRIVER
116 Use buffered writes to flash.
118 config SYS_FLASH_EMPTY_INFO
119 bool "Enable displaying empty sectors in flash info"
120 depends on FLASH_CFI_DRIVER
122 config FLASH_SPANSION_S29WS_N
123 bool "Non-standard s29ws-n MirrorBit flash"
124 depends on FLASH_CFI_DRIVER
126 Enable this if the s29ws-n MirrorBit flash has non-standard addresses
127 for buffered write commands.
130 bool "Enable CFI MTD driver"
131 depends on FLASH_CFI_DRIVER
133 This option enables the building of the cfi_mtd driver
134 in the drivers directory. The driver exports CFI flash
137 config SYS_FLASH_PROTECTION
138 bool "Use hardware flash protection"
139 depends on FLASH_CFI_DRIVER
141 If defined, hardware flash sectors protection is used
142 instead of U-Boot software protection.
145 bool "Define extra elements in CFI for flash geometry"
146 depends on FLASH_CFI_DRIVER
148 Define if the flash driver uses extra elements in the
149 common flash structure for storing flash geometry.
151 config SYS_FLASH_QUIET_TEST
152 bool "Disable printing a warning about not recognizing some flash banks"
153 depends on FLASH_CFI_DRIVER
155 If this option is enabled, the common CFI flash doesn't print it's
156 warning upon not recognized FLASH banks. This is useful, if some of
157 the configured banks are only optionally available.
159 config SYS_FLASH_CHECKSUM
160 bool "Compute and print flash CRC if 'flashchecksum' is set in the environment"
161 depends on MTD_NOR_FLASH
163 If the variable flashchecksum is set in the environment, perform a CRC
164 of the flash and print the value to console.
167 bool "Compare writes to NOR flash with source location"
168 depends on MTD_NOR_FLASH
170 If enabled, the content of the flash (destination) is compared
171 against the source after the write operation. An error message will
172 be printed when the contents are not identical. Please note that
173 this option is useless in nearly all cases, since such flash
174 programming errors usually are detected earlier while
175 unprotecting/erasing/programming. Please only enable this option if
176 you really know what you are doing.
179 bool "Altera Generic Quad SPI Controller"
181 select USE_SYS_MAX_FLASH_BANKS
183 This enables access to Altera EPCQ/EPCS flash chips using the
184 Altera Generic Quad SPI Controller. The controller converts SPI
185 NOR flash to parallel flash interface. Please find details on the
186 "Embedded Peripherals IP User Guide" of Altera.
188 config RENESAS_RPC_HF
189 bool "Renesas RCar Gen3 RPC HyperFlash driver"
190 depends on RCAR_GEN3 && DM_MTD
192 This enables access to HyperFlash memory through the Renesas
193 RCar Gen3 RPC controller.
196 bool "HyperBus controller driver for AM65x SoC"
199 This is the driver for HyperBus controller on TI's AM65x and
203 bool "STM32 MCU Flash driver"
204 depends on ARCH_STM32
205 select USE_SYS_MAX_FLASH_BANKS
207 This is the driver of embedded flash for some STMicroelectronics
210 config SYS_MAX_FLASH_SECT
211 int "Maximumm number of sectors on a flash chip"
212 depends on MTD_NOR_FLASH || FLASH_CFI_DRIVER
215 config SAMSUNG_ONENAND
216 bool "Samsung OneNAND driver support"
218 config USE_SYS_MAX_FLASH_BANKS
219 bool "Enable Max number of Flash memory banks"
221 When this option is enabled, the CONFIG_SYS_MAX_FLASH_BANKS
224 config SYS_MAX_FLASH_BANKS
225 int "Max number of Flash memory banks"
226 depends on USE_SYS_MAX_FLASH_BANKS
229 Max number of Flash memory banks using by the MTD framework, in the
230 flash CFI driver and in some other driver to define the flash_info
233 config SYS_MAX_FLASH_BANKS_DETECT
234 bool "Detection of flash banks number in CFI driver"
235 depends on CFI_FLASH && FLASH_CFI_DRIVER
237 This enables detection of number of flash banks in CFI driver,
238 to reduce the effective number of flash bank, between 0 and
239 CONFIG_SYS_MAX_FLASH_BANKS
241 source "drivers/mtd/nand/Kconfig"
243 config SYS_NAND_MAX_OOBFREE
244 int "Maximum number of free OOB regions supported"
245 depends on SAMSUNG_ONENAND || MTD_RAW_NAND
249 Set the maximum number of free OOB regions supported. Useful for
250 reducing image size, especially with SPL.
252 config SYS_NAND_MAX_ECCPOS
253 int "Maximum number of ECC bytes supported"
254 depends on SAMSUNG_ONENAND || MTD_RAW_NAND
258 Set the maximum number of ECC bytes supported. Useful for reducing
259 image size, especially with SPL.
261 config SYS_NAND_MAX_CHIPS
263 depends on MTD_RAW_NAND || CMD_ONENAND || TARGET_S5PC210_UNIVERSAL || \
267 The maximum number of NAND chips per device to be supported.
269 source "drivers/mtd/spi/Kconfig"
271 source "drivers/mtd/ubi/Kconfig"