| menu "MTD Support" |
| |
| config MTD_PARTITIONS |
| bool |
| |
| config MTD |
| bool "Enable MTD layer" |
| help |
| Enable the MTD stack, necessary to interact with NAND, NOR, |
| SPI-NOR, SPI-NAND, OneNAND, etc. |
| |
| config DM_MTD |
| bool "Enable Driver Model for MTD drivers" |
| depends on DM |
| help |
| Enable driver model for Memory Technology Devices (MTD), such as |
| flash, RAM and similar chips, often used for solid state file |
| systems on embedded devices. |
| |
| config MTD_NOR_FLASH |
| bool "Enable parallel NOR flash support" |
| help |
| Enable support for parallel NOR flash. |
| |
| config MTD_CONCAT |
| bool "Enable MTD device concatenation" |
| depends on MTD |
| help |
| Enable support for concatenating multiple physical MTD devices |
| into a single logical device. The larger logical device can then |
| be partitioned. |
| |
| config SYS_MTDPARTS_RUNTIME |
| bool "Allow MTDPARTS to be configured at runtime" |
| depends on MTD |
| help |
| This option allows to call the function board_mtdparts_default to |
| dynamically build the variables mtdids and mtdparts at runtime. |
| |
| config FLASH_CFI_DRIVER |
| bool "Enable CFI Flash driver" |
| select USE_SYS_MAX_FLASH_BANKS |
| help |
| The Common Flash Interface specification was developed by Intel, |
| AMD and other flash manufactures. It provides a universal method |
| for probing the capabilities of flash devices. If you wish to |
| support any device that is CFI-compliant, you need to enable this |
| option. Visit <http://www.amd.com/products/nvd/overview/cfi.html> |
| for more information on CFI. |
| |
| choice |
| prompt "Data-width of the flash device" |
| depends on FLASH_CFI_DRIVER |
| default SYS_FLASH_CFI_WIDTH_8BIT |
| |
| config SYS_FLASH_CFI_WIDTH_8BIT |
| bool "Data-width of the device is 8-bit" |
| |
| config SYS_FLASH_CFI_WIDTH_16BIT |
| bool "Data-width of the device is 16-bit" |
| |
| config SYS_FLASH_CFI_WIDTH_32BIT |
| bool "Data-width of the device is 32-bit" |
| |
| config SYS_FLASH_CFI_WIDTH_64BIT |
| bool "Data-width of the device is 64-bit" |
| |
| endchoice |
| |
| config SYS_FLASH_CFI_WIDTH |
| hex |
| depends on FLASH_CFI_DRIVER |
| default 0x1 if SYS_FLASH_CFI_WIDTH_8BIT |
| default 0x2 if SYS_FLASH_CFI_WIDTH_16BIT |
| default 0x4 if SYS_FLASH_CFI_WIDTH_32BIT |
| default 0x8 if SYS_FLASH_CFI_WIDTH_64BIT |
| help |
| This must be kept in sync with the table in include/flash.h |
| |
| config FLASH_SHOW_PROGRESS |
| int "Print out a countdown durinng writes" |
| depends on FLASH_CFI_DRIVER |
| default 45 |
| help |
| If set to a non-zero value, print out countdown digits and dots. |
| Recommended value: 45 (9..1) for 80 column displays, 15 (3..1) for 40 |
| column displays. |
| |
| config CFI_FLASH |
| bool "Enable Driver Model for CFI Flash driver" |
| depends on DM_MTD |
| select FLASH_CFI_DRIVER |
| help |
| The Common Flash Interface specification was developed by Intel, |
| AMD and other flash manufactures. It provides a universal method |
| for probing the capabilities of flash devices. If you wish to |
| support any device that is CFI-compliant, you need to enable this |
| option. Visit <http://www.amd.com/products/nvd/overview/cfi.html> |
| for more information on CFI. |
| |
| config CFI_FLASH_USE_WEAK_ACCESSORS |
| bool "Allow read/write functions to be overridden" |
| depends on FLASH_CFI_DRIVER |
| help |
| Enable this option to allow for the flash_{read,write}{8,16,32,64} |
| functions to be overridden by the platform. |
| |
| config SYS_CFI_FLASH_STATUS_POLL |
| bool "Poll status on AMD flash chips" |
| depends on FLASH_CFI_DRIVER |
| |
| config SYS_FLASH_USE_BUFFER_WRITE |
| bool "Enable buffered writes to flash" |
| depends on FLASH_CFI_DRIVER |
| help |
| Use buffered writes to flash. |
| |
| config SYS_FLASH_EMPTY_INFO |
| bool "Enable displaying empty sectors in flash info" |
| depends on FLASH_CFI_DRIVER |
| |
| config FLASH_CFI_MTD |
| bool "Enable CFI MTD driver" |
| depends on FLASH_CFI_DRIVER |
| help |
| This option enables the building of the cfi_mtd driver |
| in the drivers directory. The driver exports CFI flash |
| to the MTD layer. |
| |
| config SYS_FLASH_PROTECTION |
| bool "Use hardware flash protection" |
| depends on FLASH_CFI_DRIVER |
| help |
| If defined, hardware flash sectors protection is used |
| instead of U-Boot software protection. |
| |
| config SYS_FLASH_CFI |
| bool "Define extra elements in CFI for flash geometry" |
| depends on FLASH_CFI_DRIVER |
| help |
| Define if the flash driver uses extra elements in the |
| common flash structure for storing flash geometry. |
| |
| config SYS_FLASH_QUIET_TEST |
| bool "Disable printing a warning about not recognizing some flash banks" |
| depends on FLASH_CFI_DRIVER |
| help |
| If this option is enabled, the common CFI flash doesn't print it's |
| warning upon not recognized FLASH banks. This is useful, if some of |
| the configured banks are only optionally available. |
| |
| config SYS_FLASH_CHECKSUM |
| bool "Compute and print flash CRC if 'flashchecksum' is set in the environment" |
| depends on MTD_NOR_FLASH |
| help |
| If the variable flashchecksum is set in the environment, perform a CRC |
| of the flash and print the value to console. |
| |
| config ALTERA_QSPI |
| bool "Altera Generic Quad SPI Controller" |
| depends on DM_MTD |
| select USE_SYS_MAX_FLASH_BANKS |
| help |
| This enables access to Altera EPCQ/EPCS flash chips using the |
| Altera Generic Quad SPI Controller. The controller converts SPI |
| NOR flash to parallel flash interface. Please find details on the |
| "Embedded Peripherals IP User Guide" of Altera. |
| |
| config RENESAS_RPC_HF |
| bool "Renesas RCar Gen3 RPC HyperFlash driver" |
| depends on RCAR_GEN3 && DM_MTD |
| help |
| This enables access to HyperFlash memory through the Renesas |
| RCar Gen3 RPC controller. |
| |
| config HBMC_AM654 |
| bool "HyperBus controller driver for AM65x SoC" |
| depends on SYSCON |
| help |
| This is the driver for HyperBus controller on TI's AM65x and |
| other SoCs |
| |
| config STM32_FLASH |
| bool "STM32 MCU Flash driver" |
| depends on ARCH_STM32 |
| select USE_SYS_MAX_FLASH_BANKS |
| help |
| This is the driver of embedded flash for some STMicroelectronics |
| STM32 MCU. |
| |
| config SYS_MAX_FLASH_SECT |
| int "Maximumm number of sectors on a flash chip" |
| depends on MTD_NOR_FLASH || FLASH_CFI_DRIVER |
| default 512 |
| |
| config SAMSUNG_ONENAND |
| bool "Samsung OneNAND driver support" |
| |
| config USE_SYS_MAX_FLASH_BANKS |
| bool "Enable Max number of Flash memory banks" |
| help |
| When this option is enabled, the CONFIG_SYS_MAX_FLASH_BANKS |
| will be defined. |
| |
| config SYS_MAX_FLASH_BANKS |
| int "Max number of Flash memory banks" |
| depends on USE_SYS_MAX_FLASH_BANKS |
| default 1 |
| help |
| Max number of Flash memory banks using by the MTD framework, in the |
| flash CFI driver and in some other driver to define the flash_info |
| struct declaration. |
| |
| config SYS_MAX_FLASH_BANKS_DETECT |
| bool "Detection of flash banks number in CFI driver" |
| depends on CFI_FLASH && FLASH_CFI_DRIVER |
| help |
| This enables detection of number of flash banks in CFI driver, |
| to reduce the effective number of flash bank, between 0 and |
| CONFIG_SYS_MAX_FLASH_BANKS |
| |
| source "drivers/mtd/nand/Kconfig" |
| |
| config SYS_NAND_MAX_OOBFREE |
| int "Maximum number of free OOB regions supported" |
| depends on SAMSUNG_ONENAND || MTD_RAW_NAND |
| range 2 32 |
| default 32 |
| help |
| Set the maximum number of free OOB regions supported. Useful for |
| reducing image size, especially with SPL. |
| |
| config SYS_NAND_MAX_ECCPOS |
| int "Maximum number of ECC bytes supported" |
| depends on SAMSUNG_ONENAND || MTD_RAW_NAND |
| range 48 2147483647 |
| default 680 |
| help |
| Set the maximum number of ECC bytes supported. Useful for reducing |
| image size, especially with SPL. |
| |
| config SYS_NAND_MAX_CHIPS |
| int "NAND max chips" |
| depends on MTD_RAW_NAND || CMD_ONENAND || TARGET_S5PC210_UNIVERSAL || \ |
| SPL_OMAP3_ID_NAND |
| default 1 |
| help |
| The maximum number of NAND chips per device to be supported. |
| |
| source "drivers/mtd/spi/Kconfig" |
| |
| source "drivers/mtd/ubi/Kconfig" |
| |
| endmenu |