# SPDX-License-Identifier: GPL-2.0-only config SPI_ASPEED_SMC tristate "Aspeed flash controllers in SPI mode" depends on ARCH_ASPEED || COMPILE_TEST depends on HAS_IOMEM && OF help This enables support for the Firmware Memory controller (FMC) in the Aspeed AST2500/AST2400 SoCs when attached to SPI NOR chips, and support for the SPI flash memory controller (SPI) for the host firmware. The implementation only supports SPI NOR. config SPI_CADENCE_QUADSPI tristate "Cadence Quad SPI controller" depends on OF && (ARM || ARM64 || 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. config SPI_HISI_SFC tristate "Hisilicon FMC SPI-NOR Flash Controller(SFC)" depends on ARCH_HISI || COMPILE_TEST depends on HAS_IOMEM help This enables support for HiSilicon FMC 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. config SPI_INTEL_SPI tristate config SPI_INTEL_SPI_PCI tristate "Intel PCH/PCU SPI flash PCI driver (DANGEROUS)" depends on X86 && PCI select SPI_INTEL_SPI help This enables PCI support for the Intel PCH/PCU SPI controller in master mode. This controller is present in modern Intel hardware and is used to hold BIOS and other persistent settings. Using this driver it is possible to upgrade BIOS directly from Linux. Say N here unless you know what you are doing. Overwriting the SPI flash may render the system unbootable. To compile this driver as a module, choose M here: the module will be called intel-spi-pci. config SPI_INTEL_SPI_PLATFORM tristate "Intel PCH/PCU SPI flash platform driver (DANGEROUS)" depends on X86 select SPI_INTEL_SPI help This enables platform support for the Intel PCH/PCU SPI controller in master mode. This controller is present in modern Intel hardware and is used to hold BIOS and other persistent settings. Using this driver it is possible to upgrade BIOS directly from Linux. Say N here unless you know what you are doing. Overwriting the SPI flash may render the system unbootable. To compile this driver as a module, choose M here: the module will be called intel-spi-platform.