menuconfig SPI bool "SPI Support" help The "Serial Peripheral Interface" is a low level synchronous protocol. Chips that support SPI can have data transfer rates up to several tens of Mbit/sec. Chips are addressed with a controller and a chipselect. Most SPI slaves don't support dynamic device discovery; some are even write-only or read-only. SPI is widely used by microcontrollers to talk with sensors, eeprom and flash memory, codecs and various other controller chips, analog to digital (and d-to-a) converters, and more. MMC and SD cards can be accessed using SPI protocol; and for DataFlash cards used in MMC sockets, SPI must always be used. SPI is one of a family of similar protocols using a four wire interface (select, clock, data in, data out) including Microwire (half duplex), SSP, SSI, and PSP. This driver framework should work with most such devices and controllers. if SPI config DM_SPI bool "Enable Driver Model for SPI drivers" depends on DM help Enable driver model for SPI. The SPI slave interface (spi_setup_slave(), spi_xfer(), etc.) is then implemented by the SPI uclass. Drivers provide methods to access the SPI buses that they control. The uclass interface is defined in include/spi.h. The existing spi_slave structure is attached as 'parent data' to every slave on each bus. Slaves typically use driver-private data instead of extending the spi_slave structure. config SPI_MEM bool "SPI memory extension" help Enable this option if you want to enable the SPI memory extension. This extension is meant to simplify interaction with SPI memories by providing an high-level interface to send memory-like commands. config SPI_DIRMAP bool "SPI direct mapping" depends on SPI_MEM help Enable the SPI direct mapping API. Most modern SPI controllers can directly map a SPI memory (or a portion of the SPI memory) in the CPU address space. Most of the time this brings significant performance improvements as it automates the whole process of sending SPI memory operations every time a new region is accessed. if DM_SPI config ALTERA_SPI bool "Altera SPI driver" help Enable the Altera SPI driver. This driver can be used to access the SPI NOR flash on platforms embedding this Altera IP core. Please find details on the "Embedded Peripherals IP User Guide" of Altera. config APPLE_SPI bool "Apple SPI driver" default y if ARCH_APPLE help Enable the Apple SPI driver. This driver can be used to access the SPI flash and keyboard on machines based on Apple SoCs. config ATCSPI200_SPI bool "Andestech ATCSPI200 SPI driver" help Enable the Andestech ATCSPI200 SPI driver. This driver can be used to access the SPI flash on AE3XX and AE250 platforms embedding this Andestech IP core. config ATH79_SPI bool "Atheros SPI driver" depends on ARCH_ATH79 help Enable the Atheros ar7xxx/ar9xxx SoC SPI driver, it was used to access SPI NOR flash and other SPI peripherals. This driver uses driver model and requires a device tree binding to operate. please refer to doc/device-tree-bindings/spi/spi-ath79.txt. config ATMEL_QSPI bool "Atmel Quad SPI Controller" depends on ARCH_AT91 help Enable the Atmel Quad SPI controller in master mode. This driver does not support generic SPI. The implementation supports only the spi-mem interface. config ATMEL_SPI bool "Atmel SPI driver" default y if ARCH_AT91 help This enables driver for the Atmel SPI Controller, present on many AT91 (ARM) chips. This driver can be used to access the SPI Flash, such as AT25DF321. config BCM63XX_HSSPI bool "BCM63XX HSSPI driver" depends on (ARCH_BMIPS || ARCH_BCM68360 || \ ARCH_BCM6858 || ARCH_BCM63158) help Enable the BCM6328 HSSPI driver. This driver can be used to access the SPI NOR flash on platforms embedding this Broadcom SPI core. config BCM63XX_SPI bool "BCM6348 SPI driver" depends on ARCH_BMIPS help Enable the BCM6348/BCM6358 SPI driver. This driver can be used to access the SPI NOR flash on platforms embedding these Broadcom SPI cores. config BCMSTB_SPI bool "BCMSTB SPI driver" help Enable the Broadcom set-top box SPI driver. This driver can be used to access the SPI flash on platforms embedding this Broadcom SPI core. config CORTINA_SFLASH bool "Cortina-Access Serial Flash controller driver" depends on DM_SPI && SPI_MEM help Enable the Cortina-Access Serial Flash controller driver. This driver can be used to access the SPI NOR/NAND flash on platforms embedding this Cortina-Access IP core. config CADENCE_QSPI bool "Cadence QSPI driver" help Enable the Cadence Quad-SPI (QSPI) driver. This driver can be used to access the SPI NOR flash on platforms embedding this Cadence IP core. config HAS_CQSPI_REF_CLK bool "Cadence QSPI static reference clock" depends on CADENCE_QSPI config CQSPI_REF_CLK int "Cadence QSPI reference clock value in Hz" depends on HAS_CQSPI_REF_CLK config CADENCE_OSPI_VERSAL bool "Configure Versal OSPI" depends on ARCH_VERSAL && CADENCE_QSPI imply DM_GPIO help This option is used to enable Versal OSPI DMA operations which are used for ospi flash read using cadence qspi controller. config CF_SPI bool "ColdFire SPI driver" help Enable the ColdFire SPI driver. This driver can be used on some m68k SoCs. config DAVINCI_SPI bool "Davinci & Keystone SPI driver" depends on ARCH_DAVINCI || ARCH_KEYSTONE help Enable the Davinci SPI driver config DESIGNWARE_SPI bool "Designware SPI driver" help Enable the Designware SPI driver. This driver can be used to access the SPI NOR flash on platforms embedding this Designware IP core. config EXYNOS_SPI bool "Samsung Exynos SPI driver" help Enable the Samsung Exynos SPI driver. This driver can be used to access the SPI NOR flash on platforms embedding this Samsung Exynos IP core. config FSL_DSPI bool "Freescale DSPI driver" help Enable the Freescale DSPI driver. This driver can be used to access the SPI NOR flash and SPI Data flash on platforms embedding this Freescale DSPI IP core. LS102xA and Colibri VF50/VF61 platforms use this driver. config FSL_QSPI bool "Freescale QSPI driver" imply SPI_FLASH_BAR help Enable the Freescale Quad-SPI (QSPI) driver. This driver can be used to access the SPI NOR flash on platforms embedding this Freescale IP core. config FSL_QSPI_AHB_FULL_MAP bool "Use full AHB memory map space" depends on FSL_QSPI default y if ARCH_MX6 || ARCH_MX7 || ARCH_MX7ULP || ARCH_IMX8M help Enable the Freescale QSPI driver to use full AHB memory map space for flash access. config GXP_SPI bool "SPI driver for GXP" imply SPI_FLASH_BAR help Enable support for SPI on GXP. config ICH_SPI bool "Intel ICH SPI driver" help Enable the Intel ICH SPI driver. This driver can be used to access the SPI NOR flash on platforms embedding this Intel ICH IP core. config IPROC_QSPI bool "Broadcom iProc QSPI Flash Controller driver" help Enable Broadcom iProc QSPI Flash Controller driver. This driver can be used to access the SPI NOR flash. config KIRKWOOD_SPI bool "Marvell Kirkwood SPI Driver" help Enable support for SPI on various Marvell SoCs, such as Kirkwood and Armada 375. config MESON_SPIFC bool "Amlogic Meson SPI Flash Controller driver" depends on ARCH_MESON help Enable the Amlogic Meson SPI Flash Controller SPIFC) driver. This driver can be used to access the SPI NOR flash chips on Amlogic Meson SoCs. config MPC8XX_SPI bool "MPC8XX SPI Driver" depends on MPC8xx help Enable support for SPI on MPC8XX config MPC8XXX_SPI bool "MPC8XXX SPI Driver" help Enable support for SPI on the MPC8XXX PowerPC SoCs. config MSCC_BB_SPI bool "MSCC bitbang SPI driver" depends on SOC_VCOREIII help Enable MSCC bitbang SPI driver. This driver can be used on MSCC SOCs. config MT7620_SPI bool "MediaTek MT7620 SPI driver" depends on SOC_MT7620 help Enable the MT7620 SPI driver. This driver can be used to access generic SPI devices on MediaTek MT7620 SoC. config MT7621_SPI bool "MediaTek MT7621 SPI driver" depends on SOC_MT7621 || SOC_MT7628 help Enable the MT7621 SPI driver. This driver can be used to access the SPI NOR flash on platforms embedding this Ralink / MediaTek SPI core, like MT7621/7628/7688. config MTK_SNOR bool "Mediatek SPI-NOR controller driver" depends on SPI_MEM help Enable the Mediatek SPINOR controller driver. This driver has better read/write performance with NOR. config MTK_SNFI_SPI bool "Mediatek SPI memory controller driver" depends on SPI_MEM help Enable the Mediatek SPI memory controller driver. This driver is originally based on the MediaTek SNFI IP core. It can only be used to access SPI memory devices like SPI-NOR or SPI-NAND on platforms embedding this IP core, like MT7622/M7629. config MVEBU_A3700_SPI bool "Marvell Armada 3700 SPI driver" select CLK_ARMADA_3720 help Enable the Marvell Armada 3700 SPI driver. This driver can be used to access the SPI NOR flash on platforms embedding this Marvell IP core. config MXS_SPI bool "MXS SPI Driver" help Enable the MXS SPI controller driver. This driver can be used on the i.MX23 and i.MX28 SoCs. config SPI_MXIC bool "Macronix MX25F0A SPI controller" help Enable the Macronix MX25F0A SPI controller driver. This driver can be used to access the SPI flash on platforms embedding this Macronix IP core. config NPCM_FIU_SPI bool "FIU driver for Nuvoton NPCM SoC" help This enables support for the Flash Interface Unit SPI controller in master mode. config NXP_FSPI bool "NXP FlexSPI driver" depends on SPI_MEM help Enable the NXP FlexSPI (FSPI) driver. This driver can be used to access the SPI NOR flash on platforms embedding this NXP IP core. config OCTEON_SPI bool "Octeon SPI driver" depends on ARCH_OCTEON || ARCH_OCTEONTX || ARCH_OCTEONTX2 help Enable the Octeon SPI driver. This driver can be used to access the SPI NOR flash on Octeon II/III and OcteonTX/TX2 SoC platforms. config OMAP3_SPI bool "McSPI driver for OMAP" help SPI master controller for OMAP24XX and later Multichannel SPI (McSPI). This driver be used to access SPI chips on platforms embedding this OMAP3 McSPI IP core. config PIC32_SPI bool "Microchip PIC32 SPI driver" depends on MACH_PIC32 help Enable the Microchip PIC32 SPI driver. This driver can be used to access the SPI NOR flash, MMC-over-SPI on platforms based on Microchip PIC32 family devices. config PL022_SPI bool "ARM AMBA PL022 SSP controller driver" depends on ARM help This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP controller. If you have an embedded system with an AMBA(R) bus and a PL022 controller, say Y or M here. config SPI_QUP bool "Qualcomm SPI controller with QUP interface" depends on ARCH_IPQ40XX help Qualcomm Universal Peripheral (QUP) core is an AHB slave that provides a common data path (an output FIFO and an input FIFO) for serial peripheral interface (SPI) mini-core. SPI in master mode supports up to 50MHz, up to four chip selects, programmable data path from 4 bits to 32 bits and numerous protocol variants. config RENESAS_RPC_SPI bool "Renesas RPC SPI driver" depends on RCAR_GEN3 || RZA1 imply SPI_FLASH_BAR help Enable the Renesas RPC SPI driver, used to access SPI NOR flash on Renesas RCar Gen3 SoCs. This uses driver model and requires a device tree binding to operate. config ROCKCHIP_SFC bool "Rockchip SFC Driver" help Enable the Rockchip SFC Driver for SPI NOR flash. This device is a limited purpose SPI controller for driving NOR flash on certain Rockchip SoCs. This uses driver model and requires a device tree binding to operate. config ROCKCHIP_SPI bool "Rockchip SPI driver" help Enable the Rockchip SPI driver, used to access SPI NOR flash and other SPI peripherals (such as the Chrome OS EC) on Rockchip SoCs. This uses driver model and requires a device tree binding to operate. config SANDBOX_SPI bool "Sandbox SPI driver" depends on SANDBOX && DM help Enable SPI support for sandbox. This is an emulation of a real SPI bus. Devices can be attached to the bus using the device tree which specifies the driver to use. As an example, see this device tree fragment from sandbox.dts. It shows that the SPI bus has a single flash device on chip select 0 which is emulated by the driver for "sandbox,spi-flash", which is in drivers/mtd/spi/sandbox.c. spi@0 { #address-cells = <1>; #size-cells = <0>; reg = <0>; compatible = "sandbox,spi"; cs-gpios = <0>, <&gpio_a 0>; flash@0 { reg = <0>; compatible = "spansion,m25p16", "jedec,spi-nor"; spi-max-frequency = <40000000>; sandbox,filename = "spi.bin"; }; }; config SPI_ASPEED_SMC bool "ASPEED SPI flash controller driver" depends on DM_SPI && SPI_MEM default n help Enable ASPEED SPI flash controller driver for AST2500 and AST2600 SoCs. config SPI_SIFIVE bool "SiFive SPI driver" help This driver supports the SiFive SPI IP. If unsure say N. Enable the SiFive SPI controller driver. The SiFive SPI controller driver is found on various SiFive SoCs. config SOFT_SPI bool "Soft SPI driver" help Enable Soft SPI driver. This driver is to use GPIO simulate the SPI protocol. config SPI_SUNXI bool "Allwinner SoC SPI controllers" default ARCH_SUNXI help Enable the Allwinner SoC SPi controller driver. Same controller driver can reuse in all Allwinner SoC variants. config STM32_QSPI bool "STM32F7 QSPI driver" depends on STM32F4 || STM32F7 || ARCH_STM32MP help Enable the STM32F7 Quad-SPI (QSPI) driver. This driver can be used to access the SPI NOR flash chips on platforms embedding this ST IP core. config STM32_SPI bool "STM32 SPI driver" depends on ARCH_STM32MP help Enable the STM32 Serial Peripheral Interface (SPI) driver for STM32MP SoCs. This uses driver model and requires a device tree binding to operate. config TEGRA114_SPI bool "nVidia Tegra114 SPI driver" help Enable the nVidia Tegra114 SPI driver. This driver can be used to access the SPI NOR flash on platforms embedding this nVidia Tegra114 IP core. This controller is different than the older SoCs SPI controller and also register interface get changed with this controller. config TEGRA20_SFLASH bool "nVidia Tegra20 Serial Flash controller driver" help Enable the nVidia Tegra20 Serial Flash controller driver. This driver can be used to access the SPI NOR flash on platforms embedding this nVidia Tegra20 IP core. config TEGRA20_SLINK bool "nVidia Tegra20/Tegra30 SLINK driver" help Enable the nVidia Tegra20/Tegra30 SLINK driver. This driver can be used to access the SPI NOR flash on platforms embedding this nVidia Tegra20/Tegra30 IP cores. config TEGRA210_QSPI bool "nVidia Tegra210 QSPI driver" help Enable the Tegra Quad-SPI (QSPI) driver for T210. This driver be used to access SPI chips on platforms embedding this NVIDIA Tegra210 IP core. config TI_QSPI bool "TI QSPI driver" imply TI_EDMA3 help Enable the TI Quad-SPI (QSPI) driver for DRA7xx and AM43xx evms. This driver support spi flash single, quad and memory reads. config UNIPHIER_SPI bool "Socionext UniPhier SPI driver" depends on ARCH_UNIPHIER help Enable the Socionext UniPhier SPI driver. This driver can be used to access SPI chips on platforms embedding this UniPhier IP core. config XILINX_SPI bool "Xilinx SPI driver" help Enable the Xilinx SPI driver from the Xilinx EDK. This SPI controller support 8 bit SPI transfers only, with or w/o FIFO. For more info on Xilinx SPI Register Definitions and Overview see driver file - drivers/spi/xilinx_spi.c config ZYNQ_SPI bool "Zynq SPI driver" help Enable the Zynq SPI driver. This driver can be used to access the SPI NOR flash on platforms embedding this Zynq SPI IP core. config ZYNQ_QSPI bool "Zynq QSPI driver" imply SPI_FLASH_BAR help Enable the Zynq Quad-SPI (QSPI) driver. This driver can be used to access the SPI NOR flash on platforms embedding this Zynq QSPI IP core. This IP is used to connect the flash in 4-bit qspi, 8-bit dual stacked and shared 4-bit dual parallel. config ZYNQMP_GQSPI bool "Configure ZynqMP Generic QSPI" help This option is used to enable ZynqMP QSPI controller driver which is used to communicate with qspi flash devices. endif # if DM_SPI config FSL_ESPI bool "Freescale eSPI driver" imply SPI_FLASH_BAR help Enable the Freescale eSPI driver. This driver can be used to access the SPI interface and SPI NOR flash on platforms embedding this Freescale eSPI IP core. config SH_QSPI bool "Renesas Quad SPI driver" help Enable the Renesas Quad SPI controller driver. This driver can be used on Renesas SoCs. config MXC_SPI bool "MXC SPI Driver" help Enable the MXC SPI controller driver. This driver can be used on various i.MX SoCs such as i.MX31/35/51/6/7. config SYNQUACER_SPI bool "Socionext SynQuacer HS-SPI driver" depends on ARCH_SYNQUACER help Enable the Socionext HS-SPI driver for SynQuacer. This driver can be used to access the SPI interface and SPI NOR flash on platforms embedding this HS-SPI IP core. endif # menu "SPI Support"