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.
110 bool "Enable CFI MTD driver"
111 depends on FLASH_CFI_DRIVER
113 This option enables the building of the cfi_mtd driver
114 in the drivers directory. The driver exports CFI flash
117 config SYS_FLASH_PROTECTION
118 bool "Use hardware flash protection"
119 depends on FLASH_CFI_DRIVER
121 If defined, hardware flash sectors protection is used
122 instead of U-Boot software protection.
125 bool "Define extra elements in CFI for flash geometry"
126 depends on FLASH_CFI_DRIVER
128 Define if the flash driver uses extra elements in the
129 common flash structure for storing flash geometry.
132 bool "Altera Generic Quad SPI Controller"
134 select USE_SYS_MAX_FLASH_BANKS
136 This enables access to Altera EPCQ/EPCS flash chips using the
137 Altera Generic Quad SPI Controller. The controller converts SPI
138 NOR flash to parallel flash interface. Please find details on the
139 "Embedded Peripherals IP User Guide" of Altera.
142 bool "Microchip PIC32 Flash driver"
143 depends on MACH_PIC32 && DM_MTD
144 select USE_SYS_MAX_FLASH_BANKS
146 This enables access to Microchip PIC32 internal non-CFI flash
147 chips through PIC32 Non-Volatile-Memory Controller.
149 config RENESAS_RPC_HF
150 bool "Renesas RCar Gen3 RPC HyperFlash driver"
151 depends on RCAR_GEN3 && DM_MTD
153 This enables access to HyperFlash memory through the Renesas
154 RCar Gen3 RPC controller.
157 bool "HyperBus controller driver for AM65x SoC"
160 This is the driver for HyperBus controller on TI's AM65x and
164 bool "STM32 MCU Flash driver"
165 depends on ARCH_STM32
166 select USE_SYS_MAX_FLASH_BANKS
168 This is the driver of embedded flash for some STMicroelectronics
171 config SAMSUNG_ONENAND
172 bool "Samsung OneNAND driver support"
174 config USE_SYS_MAX_FLASH_BANKS
175 bool "Enable Max number of Flash memory banks"
177 When this option is enabled, the CONFIG_SYS_MAX_FLASH_BANKS
180 config SYS_MAX_FLASH_BANKS
181 int "Max number of Flash memory banks"
182 depends on USE_SYS_MAX_FLASH_BANKS
185 Max number of Flash memory banks using by the MTD framework, in the
186 flash CFI driver and in some other driver to define the flash_info
189 config SYS_MAX_FLASH_BANKS_DETECT
190 bool "Detection of flash banks number in CFI driver"
191 depends on CFI_FLASH && FLASH_CFI_DRIVER
193 This enables detection of number of flash banks in CFI driver,
194 to reduce the effective number of flash bank, between 0 and
195 CONFIG_SYS_MAX_FLASH_BANKS
197 source "drivers/mtd/nand/Kconfig"
199 config SYS_NAND_MAX_CHIPS
201 depends on MTD_RAW_NAND || CMD_ONENAND || TARGET_S5PC210_UNIVERSAL || \
205 The maximum number of NAND chips per device to be supported.
207 source "drivers/mtd/spi/Kconfig"
209 source "drivers/mtd/ubi/Kconfig"