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_MT81xx_NOR tristate "Mediatek MT81xx SPI NOR flash controller" depends on HAS_IOMEM help This enables access to SPI NOR flash, using MT81xx SPI NOR flash controller. This controller does not support generic SPI BUS, it only supports SPI NOR Flash. 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_ATMEL_QUADSPI tristate "Atmel Quad SPI Controller" depends on ARCH_AT91 || (ARM && COMPILE_TEST && !ARCH_EBSA110) depends on OF && HAS_IOMEM help This enables support for the Quad SPI controller in master mode. This driver does not support generic SPI. The implementation only supports SPI NOR. config SPI_CADENCE_QUADSPI tristate "Cadence Quad SPI controller" depends on OF && ARM 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. config SPI_FSL_QUADSPI tristate "Freescale Quad SPI controller" depends on ARCH_MXC || SOC_LS1021A || ARCH_LAYERSCAPE || 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_HISI_SFC tristate "Hisilicon SPI-NOR Flash Controller(SFC)" depends on ARCH_HISI || COMPILE_TEST depends on HAS_IOMEM && HAS_DMA help This enables support for hisilicon SPI-NOR flash controller. 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. endif # MTD_SPI_NOR