menu "SPI Flash Support" config SPI_FLASH bool "Enable SPI Flash support" help Enable the legacy SPI flash support. This will include basic standard support for things like probing, read / write, and erasing through the MTD layer. If unsure, say N 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. endmenu # menu "SPI Flash Support"