| 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. | |
| if MTD | |
| 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" | |
| 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" | |
| 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_SPANSION_S29WS_N | |
| bool "Non-standard s29ws-n MirrorBit flash" | |
| depends on FLASH_CFI_DRIVER | |
| help | |
| Enable this if the s29ws-n MirrorBit flash has non-standard addresses | |
| for buffered write commands. | |
| config FLASH_CFI_MTD | |
| bool "Enable CFI MTD driver" | |
| depends on FLASH_CFI_DRIVER && MTD | |
| 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 FLASH_VERIFY | |
| bool "Compare writes to NOR flash with source location" | |
| depends on MTD_NOR_FLASH | |
| help | |
| If enabled, the content of the flash (destination) is compared | |
| against the source after the write operation. An error message will | |
| be printed when the contents are not identical. Please note that | |
| this option is useless in nearly all cases, since such flash | |
| programming errors usually are detected earlier while | |
| unprotecting/erasing/programming. Please only enable this option if | |
| you really know what you are doing. | |
| 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" | |
| source "drivers/mtd/nvmxip/Kconfig" | |
| endif | |
| endmenu |