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_FLASH_USE_BUFFER_WRITE
100 bool "Enable buffered writes to flash"
101 depends on FLASH_CFI_DRIVER
103 Use buffered writes to flash.
106 bool "Enable CFI MTD driver"
107 depends on FLASH_CFI_DRIVER
109 This option enables the building of the cfi_mtd driver
110 in the drivers directory. The driver exports CFI flash
113 config SYS_FLASH_PROTECTION
114 bool "Use hardware flash protection"
115 depends on FLASH_CFI_DRIVER
117 If defined, hardware flash sectors protection is used
118 instead of U-Boot software protection.
121 bool "Define extra elements in CFI for flash geometry"
122 depends on FLASH_CFI_DRIVER
124 Define if the flash driver uses extra elements in the
125 common flash structure for storing flash geometry.
128 bool "Altera Generic Quad SPI Controller"
130 select USE_SYS_MAX_FLASH_BANKS
132 This enables access to Altera EPCQ/EPCS flash chips using the
133 Altera Generic Quad SPI Controller. The controller converts SPI
134 NOR flash to parallel flash interface. Please find details on the
135 "Embedded Peripherals IP User Guide" of Altera.
138 bool "Microchip PIC32 Flash driver"
139 depends on MACH_PIC32 && DM_MTD
140 select USE_SYS_MAX_FLASH_BANKS
142 This enables access to Microchip PIC32 internal non-CFI flash
143 chips through PIC32 Non-Volatile-Memory Controller.
145 config RENESAS_RPC_HF
146 bool "Renesas RCar Gen3 RPC HyperFlash driver"
147 depends on RCAR_GEN3 && DM_MTD
149 This enables access to HyperFlash memory through the Renesas
150 RCar Gen3 RPC controller.
153 bool "HyperBus controller driver for AM65x SoC"
156 This is the driver for HyperBus controller on TI's AM65x and
160 bool "STM32 MCU Flash driver"
161 depends on ARCH_STM32
162 select USE_SYS_MAX_FLASH_BANKS
164 This is the driver of embedded flash for some STMicroelectronics
167 config USE_SYS_MAX_FLASH_BANKS
168 bool "Enable Max number of Flash memory banks"
170 When this option is enabled, the CONFIG_SYS_MAX_FLASH_BANKS
173 config SYS_MAX_FLASH_BANKS
174 int "Max number of Flash memory banks"
175 depends on USE_SYS_MAX_FLASH_BANKS
178 Max number of Flash memory banks using by the MTD framework, in the
179 flash CFI driver and in some other driver to define the flash_info
182 config SYS_MAX_FLASH_BANKS_DETECT
183 bool "Detection of flash banks number in CFI driver"
184 depends on CFI_FLASH && FLASH_CFI_DRIVER
186 This enables detection of number of flash banks in CFI driver,
187 to reduce the effective number of flash bank, between 0 and
188 CONFIG_SYS_MAX_FLASH_BANKS
190 source "drivers/mtd/nand/Kconfig"
192 config SYS_NAND_MAX_CHIPS
194 depends on MTD_RAW_NAND || CMD_ONENAND || TARGET_S5PC210_UNIVERSAL || \
198 The maximum number of NAND chips per device to be supported.
200 source "drivers/mtd/spi/Kconfig"
202 source "drivers/mtd/ubi/Kconfig"