menuconfig MTD_SPI_NOR tristate "SPI-NOR device support" depends on MTD help This is the framework for the SPI NOR which can be used by the SPI device drivers and the SPI-NOR device driver. if MTD_SPI_NOR config MTD_SPI_NOR_USE_4K_SECTORS bool "Use small 4096 B erase sectors" 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_FSL_QUADSPI tristate "Freescale Quad SPI controller" depends on ARCH_MXC || COMPILE_TEST depends on HAS_IOMEM help This enables support for the Quad SPI controller in master mode. This controller does not support generic SPI. It only supports SPI NOR. config SPI_NXP_SPIFI tristate "NXP SPI Flash Interface (SPIFI)" depends on OF && (ARCH_LPC18XX || COMPILE_TEST) depends on HAS_IOMEM help Enable support for the NXP LPC SPI Flash Interface controller. SPIFI is a specialized controller for connecting serial SPI Flash. Enable this option if you have a device with a SPIFI controller and want to access the Flash as a mtd device. config SPI_CADENCE_QUADSPI tristate "Cadence Quad SPI controller" depends on ARCH_KEYSTONE || (OF && COMPILE_TEST) help Enable support for the Cadence Quad SPI Flash controller. Cadence QSPI is a specialized controller for connecting an SPI Flash over 1/2/4-bit wide bus. Enable this option if you have a device with a Cadence QSPI controller and want to access the Flash as an MTD device. endif # MTD_SPI_NOR