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+# SPDX-License-Identifier: GPL-2.0-only
+#
+# SPI driver configuration
+#
+menuconfig SPI
+ bool "SPI support"
+ depends on HAS_IOMEM
+ 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 SPI_DEBUG
+ bool "Debug support for SPI drivers"
+ depends on DEBUG_KERNEL
+ help
+ Say "yes" to enable debug messaging (like dev_dbg and pr_debug),
+ sysfs, and debugfs support in SPI controller and protocol drivers.
+
+#
+# MASTER side ... talking to discrete SPI slave chips including microcontrollers
+#
+
+config SPI_MASTER
+# bool "SPI Master Support"
+ bool
+ default SPI
+ help
+ If your system has an master-capable SPI controller (which
+ provides the clock and chipselect), you can enable that
+ controller and the protocol drivers for the SPI slave chips
+ that are connected.
+
+if SPI_MASTER
+
+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 a high-level interface to send memory-like commands.
+
+comment "SPI Master Controller Drivers"
+
+config SPI_ALTERA
+ tristate "Altera SPI Controller platform driver"
+ select SPI_ALTERA_CORE
+ select REGMAP_MMIO
+ help
+ This is the driver for the Altera SPI Controller.
+
+config SPI_ALTERA_CORE
+ tristate "Altera SPI Controller core code" if COMPILE_TEST
+ select REGMAP
+ help
+ "The core code for the Altera SPI Controller"
+
+config SPI_ALTERA_DFL
+ tristate "DFL bus driver for Altera SPI Controller"
+ depends on FPGA_DFL
+ select SPI_ALTERA_CORE
+ help
+ This is a Device Feature List (DFL) bus driver for the
+ Altera SPI master controller. The SPI master is connected
+ to a SPI slave to Avalon bridge in a Intel MAX BMC.
+
+config SPI_AR934X
+ tristate "Qualcomm Atheros AR934X/QCA95XX SPI controller driver"
+ depends on ATH79 || COMPILE_TEST
+ help
+ This enables support for the SPI controller present on the
+ Qualcomm Atheros AR934X/QCA95XX SoCs.
+
+config SPI_ATH79
+ tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver"
+ depends on ATH79 || COMPILE_TEST
+ select SPI_BITBANG
+ help
+ This enables support for the SPI controller present on the
+ Atheros AR71XX/AR724X/AR913X SoCs.
+
+config SPI_ARMADA_3700
+ tristate "Marvell Armada 3700 SPI Controller"
+ depends on (ARCH_MVEBU && OF) || COMPILE_TEST
+ help
+ This enables support for the SPI controller present on the
+ Marvell Armada 3700 SoCs.
+
+config SPI_ASPEED_SMC
+ tristate "Aspeed flash controllers in SPI mode"
+ depends on ARCH_ASPEED || COMPILE_TEST
+ depends on OF
+ help
+ This enables support for the Firmware Memory controller (FMC)
+ in the Aspeed AST2600, AST2500 and 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_ATMEL
+ tristate "Atmel SPI Controller"
+ depends on ARCH_AT91 || COMPILE_TEST
+ depends on OF
+ help
+ This selects a driver for the Atmel SPI Controller, present on
+ many AT91 ARM chips.
+
+config SPI_AT91_USART
+ tristate "Atmel USART Controller SPI driver"
+ depends on (ARCH_AT91 || COMPILE_TEST)
+ depends on MFD_AT91_USART
+ help
+ This selects a driver for the AT91 USART Controller as SPI Master,
+ present on AT91 and SAMA5 SoC series.
+
+config SPI_ATMEL_QUADSPI
+ tristate "Atmel Quad SPI Controller"
+ depends on ARCH_AT91 || COMPILE_TEST
+ 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-mem interface.
+
+config SPI_AU1550
+ tristate "Au1550/Au1200/Au1300 SPI Controller"
+ depends on MIPS_ALCHEMY
+ select SPI_BITBANG
+ help
+ If you say yes to this option, support will be included for the
+ PSC SPI controller found on Au1550, Au1200 and Au1300 series.
+
+config SPI_AXI_SPI_ENGINE
+ tristate "Analog Devices AXI SPI Engine controller"
+ depends on HAS_IOMEM
+ help
+ This enables support for the Analog Devices AXI SPI Engine SPI controller.
+ It is part of the SPI Engine framework that is used in some Analog Devices
+ reference designs for FPGAs.
+
+config SPI_BCM2835
+ tristate "BCM2835 SPI controller"
+ depends on GPIOLIB
+ depends on ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST
+ help
+ This selects a driver for the Broadcom BCM2835 SPI master.
+
+ The BCM2835 contains two types of SPI master controller; the
+ "universal SPI master", and the regular SPI controller. This driver
+ is for the regular SPI controller. Slave mode operation is not also
+ not supported.
+
+config SPI_BCM2835AUX
+ tristate "BCM2835 SPI auxiliary controller"
+ depends on ((ARCH_BCM2835 || ARCH_BRCMSTB) && GPIOLIB) || COMPILE_TEST
+ help
+ This selects a driver for the Broadcom BCM2835 SPI aux master.
+
+ The BCM2835 contains two types of SPI master controller; the
+ "universal SPI master", and the regular SPI controller.
+ This driver is for the universal/auxiliary SPI controller.
+
+config SPI_BCM63XX
+ tristate "Broadcom BCM63xx SPI controller"
+ depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST
+ help
+ Enable support for the SPI controller on the Broadcom BCM63xx SoCs.
+
+config SPI_BCM63XX_HSSPI
+ tristate "Broadcom BCM63XX HS SPI controller driver"
+ depends on BCM63XX || BMIPS_GENERIC || ARCH_BCMBCA || COMPILE_TEST
+ help
+ This enables support for the High Speed SPI controller present on
+ newer Broadcom BCM63XX SoCs.
+
+config SPI_BCM_QSPI
+ tristate "Broadcom BSPI and MSPI controller support"
+ depends on ARCH_BRCMSTB || ARCH_BCM || ARCH_BCM_IPROC || \
+ BMIPS_GENERIC || COMPILE_TEST
+ default ARCH_BCM_IPROC
+ help
+ Enables support for the Broadcom SPI flash and MSPI controller.
+ Select this option for any one of BRCMSTB, iProc NSP and NS2 SoCs
+ based platforms. This driver works for both SPI master for SPI NOR
+ flash device as well as MSPI device.
+
+config SPI_BITBANG
+ tristate "Utilities for Bitbanging SPI masters"
+ help
+ With a few GPIO pins, your system can bitbang the SPI protocol.
+ Select this to get SPI support through I/O pins (GPIO, parallel
+ port, etc). Or, some systems' SPI master controller drivers use
+ this code to manage the per-word or per-transfer accesses to the
+ hardware shift registers.
+
+ This is library code, and is automatically selected by drivers that
+ need it. You only need to select this explicitly to support driver
+ modules that aren't part of this kernel tree.
+
+config SPI_BUTTERFLY
+ tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
+ depends on PARPORT
+ select SPI_BITBANG
+ help
+ This uses a custom parallel port cable to connect to an AVR
+ Butterfly <http://www.atmel.com/products/avr/butterfly>, an
+ inexpensive battery powered microcontroller evaluation board.
+ This same cable can be used to flash new firmware.
+
+config SPI_CADENCE
+ tristate "Cadence SPI controller"
+ help
+ This selects the Cadence SPI controller master driver
+ used by Xilinx Zynq and ZynqMP.
+
+config SPI_CADENCE_QUADSPI
+ tristate "Cadence Quad SPI controller"
+ depends on OF && (ARM || ARM64 || X86 || 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_CADENCE_XSPI
+ tristate "Cadence XSPI controller"
+ depends on (OF || COMPILE_TEST) && HAS_IOMEM
+ depends on SPI_MEM
+ help
+ Enable support for the Cadence XSPI Flash controller.
+
+ Cadence XSPI is a specialized controller for connecting an SPI
+ Flash over upto 8bit wide bus. Enable this option if you have a
+ device with a Cadence XSPI controller and want to access the
+ Flash as an MTD device.
+
+config SPI_CLPS711X
+ tristate "CLPS711X host SPI controller"
+ depends on ARCH_CLPS711X || COMPILE_TEST
+ help
+ This enables dedicated general purpose SPI/Microwire1-compatible
+ master mode interface (SSI1) for CLPS711X-based CPUs.
+
+config SPI_COLDFIRE_QSPI
+ tristate "Freescale Coldfire QSPI controller"
+ depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x)
+ help
+ This enables support for the Coldfire QSPI controller in master
+ mode.
+
+config SPI_DAVINCI
+ tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
+ depends on ARCH_DAVINCI || ARCH_KEYSTONE
+ select SPI_BITBANG
+ help
+ SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
+
+config SPI_DESIGNWARE
+ tristate "DesignWare SPI controller core support"
+ imply SPI_MEM
+ help
+ general driver for SPI controller core from DesignWare
+
+if SPI_DESIGNWARE
+
+config SPI_DW_DMA
+ bool "DMA support for DW SPI controller"
+
+config SPI_DW_PCI
+ tristate "PCI interface driver for DW SPI core"
+ depends on PCI
+
+config SPI_DW_MMIO
+ tristate "Memory-mapped io interface driver for DW SPI core"
+ depends on HAS_IOMEM
+
+config SPI_DW_BT1
+ tristate "Baikal-T1 SPI driver for DW SPI core"
+ depends on MIPS_BAIKAL_T1 || COMPILE_TEST
+ select MULTIPLEXER
+ help
+ Baikal-T1 SoC is equipped with three DW APB SSI-based MMIO SPI
+ controllers. Two of them are pretty much normal: with IRQ, DMA,
+ FIFOs of 64 words depth, 4x CSs, but the third one as being a
+ part of the Baikal-T1 System Boot Controller has got a very
+ limited resources: no IRQ, no DMA, only a single native
+ chip-select and Tx/Rx FIFO with just 8 words depth available.
+ The later one is normally connected to an external SPI-nor flash
+ of 128Mb (in general can be of bigger size).
+
+config SPI_DW_BT1_DIRMAP
+ bool "Directly mapped Baikal-T1 Boot SPI flash support"
+ depends on SPI_DW_BT1
+ help
+ Directly mapped SPI flash memory is an interface specific to the
+ Baikal-T1 System Boot Controller. It is a 16MB MMIO region, which
+ can be used to access a peripheral memory device just by
+ reading/writing data from/to it. Note that the system APB bus
+ will stall during each IO from/to the dirmap region until the
+ operation is finished. So try not to use it concurrently with
+ time-critical tasks (like the SPI memory operations implemented
+ in this driver).
+
+endif
+
+config SPI_DLN2
+ tristate "Diolan DLN-2 USB SPI adapter"
+ depends on MFD_DLN2
+ help
+ If you say yes to this option, support will be included for Diolan
+ DLN2, a USB to SPI interface.
+
+ This driver can also be built as a module. If so, the module
+ will be called spi-dln2.
+
+config SPI_EP93XX
+ tristate "Cirrus Logic EP93xx SPI controller"
+ depends on ARCH_EP93XX || COMPILE_TEST
+ help
+ This enables using the Cirrus EP93xx SPI controller in master
+ mode.
+
+config SPI_FALCON
+ bool "Falcon SPI controller support"
+ depends on SOC_FALCON
+ help
+ The external bus unit (EBU) found on the FALC-ON SoC has SPI
+ emulation that is designed for serial flash access. This driver
+ has only been tested with m25p80 type chips. The hardware has no
+ support for other types of SPI peripherals.
+
+config SPI_FSI
+ tristate "FSI SPI driver"
+ depends on FSI
+ help
+ This enables support for the driver for FSI bus attached SPI
+ controllers.
+
+config SPI_FSL_LPSPI
+ tristate "Freescale i.MX LPSPI controller"
+ depends on ARCH_MXC || COMPILE_TEST
+ help
+ This enables Freescale i.MX LPSPI controllers in master mode.
+
+config SPI_FSL_QUADSPI
+ tristate "Freescale QSPI 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.
+ Up to four flash chips can be connected on two buses with two
+ chipselects each.
+ This controller does not support generic SPI messages. It only
+ supports the high-level SPI memory interface.
+
+config SPI_GXP
+ tristate "GXP SPI driver"
+ depends on ARCH_HPE || COMPILE_TEST
+ help
+ This enables support for the driver for GXP bus attached SPI
+ controllers.
+
+config SPI_HISI_KUNPENG
+ tristate "HiSilicon SPI Controller for Kunpeng SoCs"
+ depends on (ARM64 && ACPI) || COMPILE_TEST
+ help
+ This enables support for HiSilicon SPI controller found on
+ Kunpeng SoCs.
+
+ This driver can also be built as a module. If so, the module
+ will be called hisi-kunpeng-spi.
+
+config SPI_HISI_SFC_V3XX
+ tristate "HiSilicon SPI NOR Flash Controller for Hi16XX chipsets"
+ depends on (ARM64 && ACPI) || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ This enables support for HiSilicon v3xx SPI NOR flash controller
+ found in hi16xx chipsets.
+
+config SPI_NXP_FLEXSPI
+ tristate "NXP Flex SPI controller"
+ depends on ARCH_LAYERSCAPE || HAS_IOMEM
+ help
+ This enables support for the Flex SPI controller in master mode.
+ Up to four slave devices can be connected on two buses with two
+ chipselects each.
+ This controller does not support generic SPI messages and only
+ supports the high-level SPI memory interface.
+
+config SPI_GPIO
+ tristate "GPIO-based bitbanging SPI Master"
+ depends on GPIOLIB || COMPILE_TEST
+ select SPI_BITBANG
+ help
+ This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
+ interface to manage MOSI, MISO, SCK, and chipselect signals. SPI
+ slaves connected to a bus using this driver are configured as usual,
+ except that the spi_board_info.controller_data holds the GPIO number
+ for the chipselect used by this controller driver.
+
+ Note that this driver often won't achieve even 1 Mbit/sec speeds,
+ making it unusually slow for SPI. If your platform can inline
+ GPIO operations, you should be able to leverage that for better
+ speed with a custom version of this driver; see the source code.
+
+config SPI_IMG_SPFI
+ tristate "IMG SPFI controller"
+ depends on MIPS || COMPILE_TEST
+ help
+ This enables support for the SPFI master controller found on
+ IMG SoCs.
+
+config SPI_IMX
+ tristate "Freescale i.MX SPI controllers"
+ depends on ARCH_MXC || COMPILE_TEST
+ help
+ This enables support for the Freescale i.MX SPI controllers.
+
+config SPI_INGENIC
+ tristate "Ingenic SoCs SPI controller"
+ depends on MACH_INGENIC || COMPILE_TEST
+ help
+ This enables support for the Ingenic SoCs SPI controller.
+
+ To compile this driver as a module, choose M here: the module
+ will be called spi-ingenic.
+
+config SPI_INTEL
+ tristate
+
+config SPI_INTEL_PCI
+ tristate "Intel PCH/PCU SPI flash PCI driver (DANGEROUS)"
+ depends on PCI
+ depends on X86 || COMPILE_TEST
+ depends on SPI_MEM
+ select SPI_INTEL
+ 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 spi-intel-pci.
+
+config SPI_INTEL_PLATFORM
+ tristate "Intel PCH/PCU SPI flash platform driver (DANGEROUS)"
+ depends on X86 || COMPILE_TEST
+ depends on SPI_MEM
+ select SPI_INTEL
+ 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 spi-intel-platform.
+
+config SPI_JCORE
+ tristate "J-Core SPI Master"
+ depends on OF && (SUPERH || COMPILE_TEST)
+ help
+ This enables support for the SPI master controller in the J-Core
+ synthesizable, open source SoC.
+
+config SPI_LM70_LLP
+ tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
+ depends on PARPORT
+ select SPI_BITBANG
+ help
+ This driver supports the NS LM70 LLP Evaluation Board,
+ which interfaces to an LM70 temperature sensor using
+ a parallel port.
+
+config SPI_LP8841_RTC
+ tristate "ICP DAS LP-8841 SPI Controller for RTC"
+ depends on MACH_PXA27X_DT || COMPILE_TEST
+ help
+ This driver provides an SPI master device to drive Maxim
+ DS-1302 real time clock.
+
+ Say N here unless you plan to run the kernel on an ICP DAS
+ LP-8x4x industrial computer.
+
+config SPI_MPC52xx
+ tristate "Freescale MPC52xx SPI (non-PSC) controller support"
+ depends on PPC_MPC52xx
+ help
+ This drivers supports the MPC52xx SPI controller in master SPI
+ mode.
+
+config SPI_MPC52xx_PSC
+ tristate "Freescale MPC52xx PSC SPI controller"
+ depends on PPC_MPC52xx
+ help
+ This enables using the Freescale MPC52xx Programmable Serial
+ Controller in master SPI mode.
+
+config SPI_MPC512x_PSC
+ tristate "Freescale MPC512x PSC SPI controller"
+ depends on PPC_MPC512x
+ help
+ This enables using the Freescale MPC5121 Programmable Serial
+ Controller in SPI master mode.
+
+config SPI_FSL_LIB
+ tristate
+ depends on OF
+
+config SPI_FSL_CPM
+ tristate
+ depends on FSL_SOC
+
+config SPI_FSL_SPI
+ tristate "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller"
+ depends on OF
+ select SPI_FSL_LIB
+ select SPI_FSL_CPM if FSL_SOC
+ help
+ This enables using the Freescale SPI controllers in master mode.
+ MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
+ MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
+ This also enables using the Aeroflex Gaisler GRLIB SPI controller in
+ master mode.
+
+config SPI_FSL_DSPI
+ tristate "Freescale DSPI controller"
+ select REGMAP_MMIO
+ depends on SOC_VF610 || SOC_LS1021A || ARCH_LAYERSCAPE || M5441x || COMPILE_TEST
+ help
+ This enables support for the Freescale DSPI controller in master
+ mode. VF610, LS1021A and ColdFire platforms uses the controller.
+
+config SPI_FSL_ESPI
+ tristate "Freescale eSPI controller"
+ depends on FSL_SOC
+ help
+ This enables using the Freescale eSPI controllers in master mode.
+ From MPC8536, 85xx platform uses the controller, and all P10xx,
+ P20xx, P30xx,P40xx, P50xx uses this controller.
+
+config SPI_MESON_SPICC
+ tristate "Amlogic Meson SPICC controller"
+ depends on COMMON_CLK
+ depends on ARCH_MESON || COMPILE_TEST
+ help
+ This enables master mode support for the SPICC (SPI communication
+ controller) available in Amlogic Meson SoCs.
+
+config SPI_MESON_SPIFC
+ tristate "Amlogic Meson SPIFC controller"
+ depends on ARCH_MESON || COMPILE_TEST
+ select REGMAP_MMIO
+ help
+ This enables master mode support for the SPIFC (SPI flash
+ controller) available in Amlogic Meson SoCs.
+
+config SPI_MICROCHIP_CORE
+ tristate "Microchip FPGA SPI controllers"
+ depends on SPI_MASTER
+ help
+ This enables the SPI driver for Microchip FPGA SPI controllers.
+ Say Y or M here if you want to use the "hard" controllers on
+ PolarFire SoC.
+ If built as a module, it will be called spi-microchip-core.
+
+config SPI_MICROCHIP_CORE_QSPI
+ tristate "Microchip FPGA QSPI controllers"
+ depends on SPI_MASTER
+ help
+ This enables the QSPI driver for Microchip FPGA QSPI controllers.
+ Say Y or M here if you want to use the QSPI controllers on
+ PolarFire SoC.
+ If built as a module, it will be called spi-microchip-core-qspi.
+
+config SPI_MT65XX
+ tristate "MediaTek SPI controller"
+ depends on ARCH_MEDIATEK || COMPILE_TEST
+ help
+ This selects the MediaTek(R) SPI bus driver.
+ If you want to use MediaTek(R) SPI interface,
+ say Y or M here.If you are not sure, say N.
+ SPI drivers for Mediatek MT65XX and MT81XX series ARM SoCs.
+
+config SPI_MT7621
+ tristate "MediaTek MT7621 SPI Controller"
+ depends on RALINK || COMPILE_TEST
+ help
+ This selects a driver for the MediaTek MT7621 SPI Controller.
+
+config SPI_MTK_NOR
+ tristate "MediaTek SPI NOR controller"
+ depends on ARCH_MEDIATEK || COMPILE_TEST
+ help
+ This enables support for SPI NOR controller found on MediaTek
+ ARM SoCs. This is a controller specifically for SPI NOR flash.
+ It can perform generic SPI transfers up to 6 bytes via generic
+ SPI interface as well as several SPI NOR specific instructions
+ via SPI MEM interface.
+
+config SPI_MTK_SNFI
+ tristate "MediaTek SPI NAND Flash Interface"
+ depends on ARCH_MEDIATEK || COMPILE_TEST
+ depends on MTD_NAND_ECC_MEDIATEK
+ help
+ This enables support for SPI-NAND mode on the MediaTek NAND
+ Flash Interface found on MediaTek ARM SoCs. This controller
+ is implemented as a SPI-MEM controller with pipelined ECC
+ capcability.
+
+config SPI_NPCM_FIU
+ tristate "Nuvoton NPCM FLASH Interface Unit"
+ depends on ARCH_NPCM || COMPILE_TEST
+ depends on OF && HAS_IOMEM
+ help
+ This enables support for the Flash Interface Unit SPI controller
+ in master mode.
+ This driver does not support generic SPI. The implementation only
+ supports spi-mem interface.
+
+config SPI_NPCM_PSPI
+ tristate "Nuvoton NPCM PSPI Controller"
+ depends on ARCH_NPCM || COMPILE_TEST
+ help
+ This driver provides support for Nuvoton NPCM BMC
+ Peripheral SPI controller in master mode.
+
+config SPI_LANTIQ_SSC
+ tristate "Lantiq SSC SPI controller"
+ depends on LANTIQ || X86 || COMPILE_TEST
+ help
+ This driver supports the Lantiq SSC SPI controller in master
+ mode. This controller is found on Intel (former Lantiq) SoCs like
+ the Danube, Falcon, xRX200, xRX300, Lightning Mountain.
+
+config SPI_OC_TINY
+ tristate "OpenCores tiny SPI"
+ depends on GPIOLIB || COMPILE_TEST
+ select SPI_BITBANG
+ help
+ This is the driver for OpenCores tiny SPI master controller.
+
+config SPI_OCTEON
+ tristate "Cavium OCTEON SPI controller"
+ depends on CAVIUM_OCTEON_SOC
+ help
+ SPI host driver for the hardware found on some Cavium OCTEON
+ SOCs.
+
+config SPI_OMAP_UWIRE
+ tristate "OMAP1 MicroWire"
+ depends on ARCH_OMAP1 || (ARM && COMPILE_TEST)
+ select SPI_BITBANG
+ help
+ This hooks up to the MicroWire controller on OMAP1 chips.
+
+config SPI_OMAP24XX
+ tristate "McSPI driver for OMAP"
+ depends on ARCH_OMAP2PLUS || ARCH_K3 || COMPILE_TEST
+ select SG_SPLIT
+ help
+ SPI master controller for OMAP24XX and later Multichannel SPI
+ (McSPI) modules.
+
+config SPI_TI_QSPI
+ tristate "DRA7xxx QSPI controller support"
+ depends on ARCH_OMAP2PLUS || COMPILE_TEST
+ help
+ QSPI master controller for DRA7xxx used for flash devices.
+ This device supports single, dual and quad read support, while
+ it only supports single write mode.
+
+config SPI_OMAP_100K
+ tristate "OMAP SPI 100K"
+ depends on ARCH_OMAP850 || ARCH_OMAP730 || COMPILE_TEST
+ help
+ OMAP SPI 100K master controller for omap7xx boards.
+
+config SPI_ORION
+ tristate "Orion SPI master"
+ depends on PLAT_ORION || ARCH_MVEBU || COMPILE_TEST
+ help
+ This enables using the SPI master controller on the Orion
+ and MVEBU chips.
+
+config SPI_PIC32
+ tristate "Microchip PIC32 series SPI"
+ depends on MACH_PIC32 || COMPILE_TEST
+ help
+ SPI driver for Microchip PIC32 SPI master controller.
+
+config SPI_PIC32_SQI
+ tristate "Microchip PIC32 Quad SPI driver"
+ depends on MACH_PIC32 || COMPILE_TEST
+ help
+ SPI driver for PIC32 Quad SPI controller.
+
+config SPI_PL022
+ tristate "ARM AMBA PL022 SSP controller"
+ depends on ARM_AMBA
+ default y if ARCH_REALVIEW
+ default y if INTEGRATOR_IMPD1
+ default y if ARCH_VERSATILE
+ 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_PPC4xx
+ tristate "PPC4xx SPI Controller"
+ depends on PPC32 && 4xx
+ select SPI_BITBANG
+ help
+ This selects a driver for the PPC4xx SPI Controller.
+
+config SPI_PXA2XX
+ tristate "PXA2xx SSP SPI master"
+ depends on ARCH_PXA || ARCH_MMP || PCI || ACPI || COMPILE_TEST
+ select PXA_SSP if ARCH_PXA || ARCH_MMP
+ help
+ This enables using a PXA2xx or Sodaville SSP port as a SPI master
+ controller. The driver can be configured to use any SSP port and
+ additional documentation can be found a Documentation/spi/pxa2xx.rst.
+
+config SPI_PXA2XX_PCI
+ def_tristate SPI_PXA2XX && PCI && COMMON_CLK
+
+config SPI_ROCKCHIP
+ tristate "Rockchip SPI controller driver"
+ help
+ This selects a driver for Rockchip SPI controller.
+
+ If you say yes to this option, support will be included for
+ RK3066, RK3188 and RK3288 families of SPI controller.
+ Rockchip SPI controller support DMA transport and PIO mode.
+ The main usecase of this controller is to use spi flash as boot
+ device.
+
+config SPI_ROCKCHIP_SFC
+ tristate "Rockchip Serial Flash Controller (SFC)"
+ depends on ARCH_ROCKCHIP || COMPILE_TEST
+ depends on HAS_IOMEM && HAS_DMA
+ help
+ This enables support for Rockchip serial flash controller. This
+ is a specialized controller used to access SPI flash on some
+ Rockchip SOCs.
+
+ ROCKCHIP SFC supports DMA and PIO modes. When DMA is not available,
+ the driver automatically falls back to PIO mode.
+
+config SPI_RB4XX
+ tristate "Mikrotik RB4XX SPI master"
+ depends on SPI_MASTER && ATH79
+ help
+ SPI controller driver for the Mikrotik RB4xx series boards.
+
+config SPI_RPCIF
+ tristate "Renesas RPC-IF SPI driver"
+ depends on RENESAS_RPCIF
+ help
+ SPI driver for Renesas R-Car Gen3 or RZ/G2 RPC-IF.
+
+config SPI_RSPI
+ tristate "Renesas RSPI/QSPI controller"
+ depends on SUPERH || ARCH_RENESAS || COMPILE_TEST
+ help
+ SPI driver for Renesas RSPI and QSPI blocks.
+
+config SPI_QCOM_QSPI
+ tristate "QTI QSPI controller"
+ depends on ARCH_QCOM
+ help
+ QSPI(Quad SPI) driver for Qualcomm QSPI controller.
+
+config SPI_QUP
+ tristate "Qualcomm SPI controller with QUP interface"
+ depends on ARCH_QCOM || COMPILE_TEST
+ 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.
+
+ This driver can also be built as a module. If so, the module
+ will be called spi_qup.
+
+config SPI_QCOM_GENI
+ tristate "Qualcomm GENI based SPI controller"
+ depends on QCOM_GENI_SE
+ help
+ This driver supports GENI serial engine based SPI controller in
+ master mode on the Qualcomm Technologies Inc.'s SoCs. If you say
+ yes to this option, support will be included for the built-in SPI
+ interface on the Qualcomm Technologies Inc.'s SoCs.
+
+ This driver can also be built as a module. If so, the module
+ will be called spi-geni-qcom.
+
+config SPI_S3C24XX
+ tristate "Samsung S3C24XX series SPI"
+ depends on ARCH_S3C24XX
+ select SPI_BITBANG
+ help
+ SPI driver for Samsung S3C24XX series ARM SoCs
+
+config SPI_S3C24XX_FIQ
+ bool "S3C24XX driver with FIQ pseudo-DMA"
+ depends on SPI_S3C24XX
+ select FIQ
+ help
+ Enable FIQ support for the S3C24XX SPI driver to provide pseudo
+ DMA by using the fast-interrupt request framework, This allows
+ the driver to get DMA-like performance when there are either
+ no free DMA channels, or when doing transfers that required both
+ TX and RX data paths.
+
+config SPI_S3C64XX
+ tristate "Samsung S3C64XX/Exynos SoC series type SPI"
+ depends on (PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST)
+ help
+ SPI driver for Samsung S3C64XX, S5Pv210 and Exynos SoCs.
+ Choose Y/M here only if you build for such Samsung SoC.
+
+config SPI_SC18IS602
+ tristate "NXP SC18IS602/602B/603 I2C to SPI bridge"
+ depends on I2C
+ help
+ SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge.
+
+config SPI_SH_MSIOF
+ tristate "SuperH MSIOF SPI controller"
+ depends on HAVE_CLK
+ depends on ARCH_SHMOBILE || ARCH_RENESAS || COMPILE_TEST
+ help
+ SPI driver for SuperH and SH Mobile MSIOF blocks.
+
+config SPI_SH
+ tristate "SuperH SPI controller"
+ depends on SUPERH || COMPILE_TEST
+ help
+ SPI driver for SuperH SPI blocks.
+
+config SPI_SH_SCI
+ tristate "SuperH SCI SPI controller"
+ depends on SUPERH
+ select SPI_BITBANG
+ help
+ SPI driver for SuperH SCI blocks.
+
+config SPI_SH_HSPI
+ tristate "SuperH HSPI controller"
+ depends on ARCH_RENESAS || COMPILE_TEST
+ help
+ SPI driver for SuperH HSPI blocks.
+
+config SPI_SIFIVE
+ tristate "SiFive SPI controller"
+ depends on HAS_IOMEM
+ help
+ This exposes the SPI controller IP from SiFive.
+
+config SPI_SLAVE_MT27XX
+ tristate "MediaTek SPI slave device"
+ depends on ARCH_MEDIATEK || COMPILE_TEST
+ depends on SPI_SLAVE
+ help
+ This selects the MediaTek(R) SPI slave device driver.
+ If you want to use MediaTek(R) SPI slave interface,
+ say Y or M here.If you are not sure, say N.
+ SPI slave drivers for Mediatek MT27XX series ARM SoCs.
+
+config SPI_SPRD
+ tristate "Spreadtrum SPI controller"
+ depends on ARCH_SPRD || COMPILE_TEST
+ help
+ SPI driver for Spreadtrum SoCs.
+
+config SPI_SPRD_ADI
+ tristate "Spreadtrum ADI controller"
+ depends on ARCH_SPRD || COMPILE_TEST
+ depends on HWSPINLOCK || (COMPILE_TEST && !HWSPINLOCK)
+ help
+ ADI driver based on SPI for Spreadtrum SoCs.
+
+config SPI_STM32
+ tristate "STMicroelectronics STM32 SPI controller"
+ depends on ARCH_STM32 || COMPILE_TEST
+ help
+ SPI driver for STMicroelectronics STM32 SoCs.
+
+ STM32 SPI controller supports DMA and PIO modes. When DMA
+ is not available, the driver automatically falls back to
+ PIO mode.
+
+config SPI_STM32_QSPI
+ tristate "STMicroelectronics STM32 QUAD SPI controller"
+ depends on ARCH_STM32 || COMPILE_TEST
+ depends on OF
+ depends on SPI_MEM
+ help
+ This enables support for the Quad SPI controller in master mode.
+ This driver does not support generic SPI. The implementation only
+ supports spi-mem interface.
+
+config SPI_ST_SSC4
+ tristate "STMicroelectronics SPI SSC-based driver"
+ depends on ARCH_STI || COMPILE_TEST
+ help
+ STMicroelectronics SoCs support for SPI. If you say yes to
+ this option, support will be included for the SSC driven SPI.
+
+config SPI_SUN4I
+ tristate "Allwinner A10 SoCs SPI controller"
+ depends on ARCH_SUNXI || COMPILE_TEST
+ help
+ SPI driver for Allwinner sun4i, sun5i and sun7i SoCs
+
+config SPI_SUN6I
+ tristate "Allwinner A31 SPI controller"
+ depends on ARCH_SUNXI || COMPILE_TEST
+ depends on RESET_CONTROLLER
+ help
+ This enables using the SPI controller on the Allwinner A31 SoCs.
+
+config SPI_SUNPLUS_SP7021
+ tristate "Sunplus SP7021 SPI controller"
+ depends on SOC_SP7021 || COMPILE_TEST
+ help
+ This enables Sunplus SP7021 SPI controller driver on the SP7021 SoCs.
+ This driver can also be built as a module. If so, the module will be
+ called as spi-sunplus-sp7021.
+
+ If you have a Sunplus SP7021 platform say Y here.
+ If unsure, say N.
+
+config SPI_SYNQUACER
+ tristate "Socionext's SynQuacer HighSpeed SPI controller"
+ depends on ARCH_SYNQUACER || COMPILE_TEST
+ help
+ SPI driver for Socionext's High speed SPI controller which provides
+ various operating modes for interfacing to serial peripheral devices
+ that use the de-facto standard SPI protocol.
+
+ It also supports the new dual-bit and quad-bit SPI protocol.
+
+config SPI_MXIC
+ tristate "Macronix MX25F0A SPI controller"
+ depends on SPI_MASTER
+ imply MTD_NAND_ECC_MXIC
+ help
+ This selects the Macronix MX25F0A SPI controller driver.
+
+config SPI_MXS
+ tristate "Freescale MXS SPI controller"
+ depends on ARCH_MXS
+ select STMP_DEVICE
+ help
+ SPI driver for Freescale MXS devices.
+
+config SPI_TEGRA210_QUAD
+ tristate "NVIDIA Tegra QSPI Controller"
+ depends on ARCH_TEGRA || COMPILE_TEST
+ depends on RESET_CONTROLLER
+ help
+ QSPI driver for NVIDIA Tegra QSPI Controller interface. This
+ controller is different from the SPI controller and is available
+ on Tegra SoCs starting from Tegra210.
+
+config SPI_TEGRA114
+ tristate "NVIDIA Tegra114 SPI Controller"
+ depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
+ depends on RESET_CONTROLLER
+ help
+ SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller
+ is different than the older SoCs SPI controller and also register interface
+ get changed with this controller.
+
+config SPI_TEGRA20_SFLASH
+ tristate "Nvidia Tegra20 Serial flash Controller"
+ depends on ARCH_TEGRA || COMPILE_TEST
+ depends on RESET_CONTROLLER
+ help
+ SPI driver for Nvidia Tegra20 Serial flash Controller interface.
+ The main usecase of this controller is to use spi flash as boot
+ device.
+
+config SPI_TEGRA20_SLINK
+ tristate "Nvidia Tegra20/Tegra30 SLINK Controller"
+ depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
+ depends on RESET_CONTROLLER
+ help
+ SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface.
+
+config SPI_THUNDERX
+ tristate "Cavium ThunderX SPI controller"
+ depends on PCI && 64BIT && (ARM64 || COMPILE_TEST)
+ help
+ SPI host driver for the hardware found on Cavium ThunderX
+ SOCs.
+
+config SPI_TOPCLIFF_PCH
+ tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI"
+ depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
+ help
+ SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
+ used in some x86 embedded processors.
+
+ This driver also supports the ML7213/ML7223/ML7831, a companion chip
+ for the Atom E6xx series and compatible with the Intel EG20T PCH.
+
+config SPI_UNIPHIER
+ tristate "Socionext UniPhier SPI Controller"
+ depends on (ARCH_UNIPHIER || COMPILE_TEST) && OF
+ depends on HAS_IOMEM
+ help
+ This enables a driver for the Socionext UniPhier SoC SCSSI SPI controller.
+
+ UniPhier SoCs have SCSSI and MCSSI SPI controllers.
+ Every UniPhier SoC has SCSSI which supports single channel.
+ Older UniPhier Pro4/Pro5 also has MCSSI which support multiple channels.
+ This driver supports SCSSI only.
+
+ If your SoC supports SCSSI, say Y here.
+
+config SPI_XCOMM
+ tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver"
+ depends on I2C
+ help
+ Support for the SPI-I2C bridge found on the Analog Devices
+ AD-FMCOMMS1-EBZ board.
+
+config SPI_XILINX
+ tristate "Xilinx SPI controller common module"
+ depends on HAS_IOMEM
+ select SPI_BITBANG
+ help
+ This exposes the SPI controller IP from the Xilinx EDK.
+
+ See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
+ Product Specification document (DS464) for hardware details.
+
+ Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
+
+config SPI_XLP
+ tristate "Cavium ThunderX2 SPI controller driver"
+ depends on ARCH_THUNDER2 || COMPILE_TEST
+ help
+ Enable support for the SPI controller on the Cavium ThunderX2.
+ (Originally on Netlogic XLP SoCs.)
+
+ If you have a Cavium ThunderX2 platform say Y here.
+ If unsure, say N.
+
+config SPI_XTENSA_XTFPGA
+ tristate "Xtensa SPI controller for xtfpga"
+ depends on (XTENSA && XTENSA_PLATFORM_XTFPGA) || COMPILE_TEST
+ select SPI_BITBANG
+ help
+ SPI driver for xtfpga SPI master controller.
+
+ This simple SPI master controller is built into xtfpga bitstreams
+ and is used to control daughterboard audio codec. It always transfers
+ 16 bit words in SPI mode 0, automatically asserting CS on transfer
+ start and deasserting on end.
+
+config SPI_ZYNQ_QSPI
+ tristate "Xilinx Zynq QSPI controller"
+ depends on ARCH_ZYNQ || COMPILE_TEST
+ depends on SPI_MEM
+ help
+ This enables support for the Zynq Quad SPI controller
+ in master mode.
+ This controller only supports SPI memory interface.
+
+config SPI_ZYNQMP_GQSPI
+ tristate "Xilinx ZynqMP GQSPI controller"
+ depends on (SPI_MEM && HAS_DMA) || COMPILE_TEST
+ help
+ Enables Xilinx GQSPI controller driver for Zynq UltraScale+ MPSoC.
+ This controller only supports SPI memory interface.
+
+config SPI_AMD
+ tristate "AMD SPI controller"
+ depends on SPI_MASTER || COMPILE_TEST
+ help
+ Enables SPI controller driver for AMD SoC.
+
+#
+# Add new SPI master controllers in alphabetical order above this line
+#
+
+comment "SPI Multiplexer support"
+
+config SPI_MUX
+ tristate "SPI multiplexer support"
+ select MULTIPLEXER
+ help
+ This adds support for SPI multiplexers. Each SPI mux will be
+ accessible as a SPI controller, the devices behind the mux will appear
+ to be chip selects on this controller. It is still necessary to
+ select one or more specific mux-controller drivers.
+
+#
+# There are lots of SPI device types, with sensors and memory
+# being probably the most widely used ones.
+#
+comment "SPI Protocol Masters"
+
+config SPI_SPIDEV
+ tristate "User mode SPI device driver support"
+ help
+ This supports user mode SPI protocol drivers.
+
+ Note that this application programming interface is EXPERIMENTAL
+ and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
+
+config SPI_LOOPBACK_TEST
+ tristate "spi loopback test framework support"
+ depends on m
+ help
+ This enables the SPI loopback testing framework driver
+
+ primarily used for development of spi_master drivers
+ and to detect regressions
+
+config SPI_TLE62X0
+ tristate "Infineon TLE62X0 (for power switching)"
+ depends on SYSFS
+ help
+ SPI driver for Infineon TLE62X0 series line driver chips,
+ such as the TLE6220, TLE6230 and TLE6240. This provides a
+ sysfs interface, with each line presented as a kind of GPIO
+ exposing both switch control and diagnostic feedback.
+
+#
+# Add new SPI protocol masters in alphabetical order above this line
+#
+
+endif # SPI_MASTER
+
+#
+# SLAVE side ... listening to other SPI masters
+#
+
+config SPI_SLAVE
+ bool "SPI slave protocol handlers"
+ help
+ If your system has a slave-capable SPI controller, you can enable
+ slave protocol handlers.
+
+if SPI_SLAVE
+
+config SPI_SLAVE_TIME
+ tristate "SPI slave handler reporting boot up time"
+ help
+ SPI slave handler responding with the time of reception of the last
+ SPI message.
+
+config SPI_SLAVE_SYSTEM_CONTROL
+ tristate "SPI slave handler controlling system state"
+ help
+ SPI slave handler to allow remote control of system reboot, power
+ off, halt, and suspend.
+
+endif # SPI_SLAVE
+
+config SPI_DYNAMIC
+ def_bool ACPI || OF_DYNAMIC || SPI_SLAVE
+
+endif # SPI