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
123 bool "Enable CFI MTD driver"
124 depends on FLASH_CFI_DRIVER
126 This option enables the building of the cfi_mtd driver
127 in the drivers directory. The driver exports CFI flash
130 config SYS_FLASH_PROTECTION
131 bool "Use hardware flash protection"
132 depends on FLASH_CFI_DRIVER
134 If defined, hardware flash sectors protection is used
135 instead of U-Boot software protection.
138 bool "Define extra elements in CFI for flash geometry"
139 depends on FLASH_CFI_DRIVER
141 Define if the flash driver uses extra elements in the
142 common flash structure for storing flash geometry.
144 config SYS_FLASH_QUIET_TEST
145 bool "Disable printing a warning about not recognizing some flash banks"
146 depends on FLASH_CFI_DRIVER
148 If this option is enabled, the common CFI flash doesn't print it's
149 warning upon not recognized FLASH banks. This is useful, if some of
150 the configured banks are only optionally available.
152 config SYS_FLASH_CHECKSUM
153 bool "Compute and print flash CRC if 'flashchecksum' is set in the environment"
154 depends on MTD_NOR_FLASH
156 If the variable flashchecksum is set in the environment, perform a CRC
157 of the flash and print the value to console.
160 bool "Altera Generic Quad SPI Controller"
162 select USE_SYS_MAX_FLASH_BANKS
164 This enables access to Altera EPCQ/EPCS flash chips using the
165 Altera Generic Quad SPI Controller. The controller converts SPI
166 NOR flash to parallel flash interface. Please find details on the
167 "Embedded Peripherals IP User Guide" of Altera.
169 config RENESAS_RPC_HF
170 bool "Renesas RCar Gen3 RPC HyperFlash driver"
171 depends on RCAR_GEN3 && DM_MTD
173 This enables access to HyperFlash memory through the Renesas
174 RCar Gen3 RPC controller.
177 bool "HyperBus controller driver for AM65x SoC"
180 This is the driver for HyperBus controller on TI's AM65x and
184 bool "STM32 MCU Flash driver"
185 depends on ARCH_STM32
186 select USE_SYS_MAX_FLASH_BANKS
188 This is the driver of embedded flash for some STMicroelectronics
191 config SYS_MAX_FLASH_SECT
192 int "Maximumm number of sectors on a flash chip"
193 depends on MTD_NOR_FLASH || FLASH_CFI_DRIVER
196 config SAMSUNG_ONENAND
197 bool "Samsung OneNAND driver support"
199 config USE_SYS_MAX_FLASH_BANKS
200 bool "Enable Max number of Flash memory banks"
202 When this option is enabled, the CONFIG_SYS_MAX_FLASH_BANKS
205 config SYS_MAX_FLASH_BANKS
206 int "Max number of Flash memory banks"
207 depends on USE_SYS_MAX_FLASH_BANKS
210 Max number of Flash memory banks using by the MTD framework, in the
211 flash CFI driver and in some other driver to define the flash_info
214 config SYS_MAX_FLASH_BANKS_DETECT
215 bool "Detection of flash banks number in CFI driver"
216 depends on CFI_FLASH && FLASH_CFI_DRIVER
218 This enables detection of number of flash banks in CFI driver,
219 to reduce the effective number of flash bank, between 0 and
220 CONFIG_SYS_MAX_FLASH_BANKS
222 source "drivers/mtd/nand/Kconfig"
224 config SYS_NAND_MAX_OOBFREE
225 int "Maximum number of free OOB regions supported"
226 depends on SAMSUNG_ONENAND || MTD_RAW_NAND
230 Set the maximum number of free OOB regions supported. Useful for
231 reducing image size, especially with SPL.
233 config SYS_NAND_MAX_ECCPOS
234 int "Maximum number of ECC bytes supported"
235 depends on SAMSUNG_ONENAND || MTD_RAW_NAND
239 Set the maximum number of ECC bytes supported. Useful for reducing
240 image size, especially with SPL.
242 config SYS_NAND_MAX_CHIPS
244 depends on MTD_RAW_NAND || CMD_ONENAND || TARGET_S5PC210_UNIVERSAL || \
248 The maximum number of NAND chips per device to be supported.
250 source "drivers/mtd/spi/Kconfig"
252 source "drivers/mtd/ubi/Kconfig"