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- menu "SPI Flash Support"
- config DM_SPI_FLASH
- bool "Enable Driver Model for SPI flash"
- depends on DM && DM_SPI
- help
- Enable driver model for SPI flash. This SPI flash interface
- (spi_flash_probe(), spi_flash_write(), etc.) is then
- implemented by the SPI flash uclass. There is one standard
- SPI flash driver which knows how to probe most chips
- supported by U-Boot. The uclass interface is defined in
- include/spi_flash.h, but is currently fully compatible
- with the old interface to avoid confusion and duplication
- during the transition parent. SPI and SPI flash must be
- enabled together (it is not possible to use driver model
- for one and not the other).
- config SPI_FLASH_SANDBOX
- bool "Support sandbox SPI flash device"
- depends on SANDBOX && DM_SPI_FLASH
- help
- Since sandbox cannot access real devices, an emulation mechanism is
- provided instead. Drivers can be connected up to the sandbox SPI
- bus (see CONFIG_SANDBOX_SPI) and SPI traffic will be routed to this
- device. Typically the contents of the emulated SPI flash device is
- stored in a file on the host filesystem.
- config SPI_FLASH
- bool "Legacy SPI Flash Interface support"
- help
- Enable the legacy SPI flash support. This will include basic
- standard support for things like probing, read / write, and
- erasing through cmd_sf interface.
- If unsure, say N
- config SPI_FLASH_BAR
- bool "SPI flash Bank/Extended address register support"
- depends on SPI_FLASH
- help
- Enable the SPI flash Bank/Extended address register support.
- Bank/Extended address registers are used to access the flash
- which has size > 16MiB in 3-byte addressing.
- if SPI_FLASH
- config SPI_FLASH_ATMEL
- bool "Atmel SPI flash support"
- help
- Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
- config SPI_FLASH_EON
- bool "EON SPI flash support"
- help
- Add support for various EON SPI flash chips (EN25xxx)
- config SPI_FLASH_GIGADEVICE
- bool "GigaDevice SPI flash support"
- help
- Add support for various GigaDevice SPI flash chips (GD25xxx)
- config SPI_FLASH_MACRONIX
- bool "Macronix SPI flash support"
- help
- Add support for various Macronix SPI flash chips (MX25Lxxx)
- config SPI_FLASH_SPANSION
- bool "Spansion SPI flash support"
- help
- Add support for various Spansion SPI flash chips (S25FLxxx)
- config SPI_FLASH_STMICRO
- bool "STMicro SPI flash support"
- help
- Add support for various STMicro SPI flash chips (M25Pxxx and N25Qxxx)
- config SPI_FLASH_SST
- bool "SST SPI flash support"
- help
- Add support for various SST SPI flash chips (SST25xxx)
- config SPI_FLASH_WINBOND
- bool "Winbond SPI flash support"
- help
- Add support for various Winbond SPI flash chips (W25xxx)
- endif
- config SPI_FLASH_USE_4K_SECTORS
- bool "Use small 4096 B erase sectors"
- depends on SPI_FLASH
- default y
- help
- Many flash memories support erasing small (4096 B) sectors. Depending
- on the usage this feature may provide performance gain in comparison
- to erasing whole blocks (32/64 KiB).
- Changing a small part of the flash's contents is usually faster with
- small sectors. On the other hand erasing should be faster when using
- 64 KiB block instead of 16 × 4 KiB sectors.
- Please note that some tools/drivers/filesystems may not work with
- 4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
- config SPI_FLASH_DATAFLASH
- bool "AT45xxx DataFlash support"
- depends on SPI_FLASH && DM_SPI_FLASH
- help
- Enable the access for SPI-flash-based AT45xxx DataFlash chips.
- DataFlash is a kind of SPI flash. Most AT45 chips have two buffers
- in each chip, which may be used for double buffered I/O; but this
- driver doesn't (yet) use these for any kind of i/o overlap or prefetching.
- Sometimes DataFlash is packaged in MMC-format cards, although the
- MMC stack can't (yet?) distinguish between MMC and DataFlash
- protocols during enumeration.
- If unsure, say N
- config SPI_FLASH_MTD
- bool "SPI Flash MTD support"
- depends on SPI_FLASH
- help
- Enable the MTD support for spi flash layer, this adapter is for
- translating mtd_read/mtd_write commands into spi_flash_read/write
- commands. It is not intended to use it within sf_cmd or the SPI
- flash subsystem. Such an adapter is needed for subsystems like
- UBI which can only operate on top of the MTD layer.
- If unsure, say N
- if SPL
- config SPL_SPI_SUNXI
- bool "Support for SPI Flash on Allwinner SoCs in SPL"
- depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUN8I_H3 || MACH_SUN50I
- ---help---
- Enable support for SPI Flash. This option allows SPL to read from
- sunxi SPI Flash. It uses the same method as the boot ROM, so does
- not need any extra configuration.
- endif
- endmenu # menu "SPI Flash Support"
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