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
81 bool "Enable Driver Model for CFI Flash driver"
83 select FLASH_CFI_DRIVER
85 The Common Flash Interface specification was developed by Intel,
86 AMD and other flash manufactures. It provides a universal method
87 for probing the capabilities of flash devices. If you wish to
88 support any device that is CFI-compliant, you need to enable this
89 option. Visit <http://www.amd.com/products/nvd/overview/cfi.html>
90 for more information on CFI.
92 config CFI_FLASH_USE_WEAK_ACCESSORS
93 bool "Allow read/write functions to be overridden"
94 depends on FLASH_CFI_DRIVER
96 Enable this option to allow for the flash_{read,write}{8,16,32,64}
97 functions to be overridden by the platform.
99 config SYS_CFI_FLASH_STATUS_POLL
100 bool "Poll status on AMD flash chips"
101 depends on FLASH_CFI_DRIVER
103 config SYS_FLASH_USE_BUFFER_WRITE
104 bool "Enable buffered writes to flash"
105 depends on FLASH_CFI_DRIVER
107 Use buffered writes to flash.
109 config SYS_FLASH_EMPTY_INFO
110 bool "Enable displaying empty sectors in flash info"
111 depends on FLASH_CFI_DRIVER
114 bool "Enable CFI MTD driver"
115 depends on FLASH_CFI_DRIVER
117 This option enables the building of the cfi_mtd driver
118 in the drivers directory. The driver exports CFI flash
121 config SYS_FLASH_PROTECTION
122 bool "Use hardware flash protection"
123 depends on FLASH_CFI_DRIVER
125 If defined, hardware flash sectors protection is used
126 instead of U-Boot software protection.
129 bool "Define extra elements in CFI for flash geometry"
130 depends on FLASH_CFI_DRIVER
132 Define if the flash driver uses extra elements in the
133 common flash structure for storing flash geometry.
135 config SYS_FLASH_QUIET_TEST
136 bool "Disable printing a warning about not recognizing some flash banks"
137 depends on FLASH_CFI_DRIVER
139 If this option is enabled, the common CFI flash doesn't print it's
140 warning upon not recognized FLASH banks. This is useful, if some of
141 the configured banks are only optionally available.
143 config SYS_FLASH_CHECKSUM
144 bool "Compute and print flash CRC if 'flashchecksum' is set in the environment"
145 depends on MTD_NOR_FLASH
147 If the variable flashchecksum is set in the environment, perform a CRC
148 of the flash and print the value to console.
151 bool "Altera Generic Quad SPI Controller"
153 select USE_SYS_MAX_FLASH_BANKS
155 This enables access to Altera EPCQ/EPCS flash chips using the
156 Altera Generic Quad SPI Controller. The controller converts SPI
157 NOR flash to parallel flash interface. Please find details on the
158 "Embedded Peripherals IP User Guide" of Altera.
160 config RENESAS_RPC_HF
161 bool "Renesas RCar Gen3 RPC HyperFlash driver"
162 depends on RCAR_GEN3 && DM_MTD
164 This enables access to HyperFlash memory through the Renesas
165 RCar Gen3 RPC controller.
168 bool "HyperBus controller driver for AM65x SoC"
171 This is the driver for HyperBus controller on TI's AM65x and
175 bool "STM32 MCU Flash driver"
176 depends on ARCH_STM32
177 select USE_SYS_MAX_FLASH_BANKS
179 This is the driver of embedded flash for some STMicroelectronics
182 config SYS_MAX_FLASH_SECT
183 int "Maximumm number of sectors on a flash chip"
184 depends on MTD_NOR_FLASH || FLASH_CFI_DRIVER
187 config SAMSUNG_ONENAND
188 bool "Samsung OneNAND driver support"
190 config USE_SYS_MAX_FLASH_BANKS
191 bool "Enable Max number of Flash memory banks"
193 When this option is enabled, the CONFIG_SYS_MAX_FLASH_BANKS
196 config SYS_MAX_FLASH_BANKS
197 int "Max number of Flash memory banks"
198 depends on USE_SYS_MAX_FLASH_BANKS
201 Max number of Flash memory banks using by the MTD framework, in the
202 flash CFI driver and in some other driver to define the flash_info
205 config SYS_MAX_FLASH_BANKS_DETECT
206 bool "Detection of flash banks number in CFI driver"
207 depends on CFI_FLASH && FLASH_CFI_DRIVER
209 This enables detection of number of flash banks in CFI driver,
210 to reduce the effective number of flash bank, between 0 and
211 CONFIG_SYS_MAX_FLASH_BANKS
213 source "drivers/mtd/nand/Kconfig"
215 config SYS_NAND_MAX_OOBFREE
216 int "Maximum number of free OOB regions supported"
217 depends on SAMSUNG_ONENAND || MTD_RAW_NAND
221 Set the maximum number of free OOB regions supported. Useful for
222 reducing image size, especially with SPL.
224 config SYS_NAND_MAX_ECCPOS
225 int "Maximum number of ECC bytes supported"
226 depends on SAMSUNG_ONENAND || MTD_RAW_NAND
230 Set the maximum number of ECC bytes supported. Useful for reducing
231 image size, especially with SPL.
233 config SYS_NAND_MAX_CHIPS
235 depends on MTD_RAW_NAND || CMD_ONENAND || TARGET_S5PC210_UNIVERSAL || \
239 The maximum number of NAND chips per device to be supported.
241 source "drivers/mtd/spi/Kconfig"
243 source "drivers/mtd/ubi/Kconfig"