# # SPI driver configuration # # NOTE: the reason this doesn't show SPI slave support is mostly that # nobody's needed a slave side API yet. The master-role API is not # fully appropriate there, so it'd need some thought to do well. # 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 boolean "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 # boolean "SPI Master Support" boolean 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 comment "SPI Master Controller Drivers" config SPI_ALTERA tristate "Altera SPI Controller" select SPI_BITBANG help This is the driver for the Altera SPI Controller. config SPI_ATH79 tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver" depends on ATH79 && GENERIC_GPIO select SPI_BITBANG help This enables support for the SPI controller present on the Atheros AR71XX/AR724X/AR913X SoCs. config SPI_ATMEL tristate "Atmel SPI Controller" depends on (ARCH_AT91 || AVR32) help This selects a driver for the Atmel SPI Controller, present on many AT32 (AVR32) and AT91 (ARM) chips. config SPI_BFIN tristate "SPI controller driver for ADI Blackfin5xx" depends on BLACKFIN help This is the SPI controller master driver for Blackfin 5xx processor. config SPI_BFIN_SPORT tristate "SPI bus via Blackfin SPORT" depends on BLACKFIN help Enable support for a SPI bus via the Blackfin SPORT peripheral. config SPI_AU1550 tristate "Au1550/Au1200/Au1300 SPI Controller" depends on MIPS_ALCHEMY && EXPERIMENTAL 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_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 , an inexpensive battery powered microcontroller evaluation board. This same cable can be used to flash new firmware. config SPI_COLDFIRE_QSPI tristate "Freescale Coldfire QSPI controller" depends on (M520x || M523x || M5249 || 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 SPI_MASTER && ARCH_DAVINCI select SPI_BITBANG help SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules. config SPI_EP93XX tristate "Cirrus Logic EP93xx SPI controller" depends on ARCH_EP93XX help This enables using the Cirrus EP93xx SPI controller in master mode. config SPI_GPIO tristate "GPIO-based bitbanging SPI Master" depends on GENERIC_GPIO 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_IMX tristate "Freescale i.MX SPI controllers" depends on ARCH_MXC select SPI_BITBANG default m if IMX_HAVE_PLATFORM_SPI_IMX help This enables using the Freescale i.MX SPI controllers in master mode. config SPI_LM70_LLP tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)" depends on PARPORT && EXPERIMENTAL 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_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 && EXPERIMENTAL 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 SPI_MASTER && PPC_MPC512x help This enables using the Freescale MPC5121 Programmable Serial Controller in SPI master mode. config SPI_FSL_LIB tristate depends on FSL_SOC config SPI_FSL_SPI bool "Freescale SPI controller" depends on FSL_SOC select SPI_FSL_LIB 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. config SPI_FSL_ESPI bool "Freescale eSPI controller" depends on FSL_SOC select SPI_FSL_LIB 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_OC_TINY tristate "OpenCores tiny SPI" depends on GENERIC_GPIO select SPI_BITBANG help This is the driver for OpenCores tiny SPI master controller. config SPI_OMAP_UWIRE tristate "OMAP1 MicroWire" depends on ARCH_OMAP1 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 help SPI master controller for OMAP24XX and later Multichannel SPI (McSPI) modules. config SPI_OMAP_100K tristate "OMAP SPI 100K" depends on SPI_MASTER && (ARCH_OMAP850 || ARCH_OMAP730) help OMAP SPI 100K master controller for omap7xx boards. config SPI_ORION tristate "Orion SPI master (EXPERIMENTAL)" depends on PLAT_ORION && EXPERIMENTAL help This enables using the SPI master controller on the Orion chips. config SPI_PL022 tristate "ARM AMBA PL022 SSP controller" depends on ARM_AMBA default y if MACH_U300 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 && SPI_MASTER 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 || (X86_32 && PCI)) && EXPERIMENTAL select PXA_SSP if ARCH_PXA 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. config SPI_PXA2XX_PCI def_bool SPI_PXA2XX && X86_32 && PCI config SPI_RSPI tristate "Renesas RSPI controller" depends on SUPERH help SPI driver for Renesas RSPI blocks. config SPI_S3C24XX tristate "Samsung S3C24XX series SPI" depends on ARCH_S3C2410 && EXPERIMENTAL 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 series type SPI" depends on (ARCH_S3C64XX || ARCH_S5P64X0) select S3C64XX_DMA if ARCH_S3C64XX help SPI driver for Samsung S3C64XX and newer SoCs. config SPI_SH_MSIOF tristate "SuperH MSIOF SPI controller" depends on SUPERH && HAVE_CLK select SPI_BITBANG help SPI driver for SuperH MSIOF blocks. config SPI_SH tristate "SuperH SPI controller" depends on SUPERH 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_SHMOBILE help SPI driver for SuperH HSPI blocks. config SPI_STMP3XXX tristate "Freescale STMP37xx/378x SPI/SSP controller" depends on ARCH_STMP3XXX && SPI_MASTER help SPI driver for Freescale STMP37xx/378x SoC SSP interface config SPI_TEGRA tristate "Nvidia Tegra SPI controller" depends on ARCH_TEGRA && TEGRA_SYSTEM_DMA help SPI driver for NVidia Tegra SoCs config SPI_TI_SSP tristate "TI Sequencer Serial Port - SPI Support" depends on MFD_TI_SSP help This selects an SPI master implementation using a TI sequencer serial port. config SPI_TOPCLIFF_PCH tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI" depends on PCI 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_TXX9 tristate "Toshiba TXx9 SPI controller" depends on GENERIC_GPIO && CPU_TX49XX help SPI driver for Toshiba TXx9 MIPS SoCs config SPI_XILINX tristate "Xilinx SPI controller common module" depends on HAS_IOMEM && EXPERIMENTAL 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_NUC900 tristate "Nuvoton NUC900 series SPI" depends on ARCH_W90X900 && EXPERIMENTAL select SPI_BITBANG help SPI driver for Nuvoton NUC900 series ARM SoCs # # Add new SPI master controllers in alphabetical order above this line # config SPI_DESIGNWARE tristate "DesignWare SPI controller core support" depends on SPI_MASTER help general driver for SPI controller core from DesignWare config SPI_DW_PCI tristate "PCI interface driver for DW SPI core" depends on SPI_DESIGNWARE && PCI config SPI_DW_MID_DMA bool "DMA support for DW SPI controller on Intel Moorestown platform" depends on SPI_DW_PCI && INTEL_MID_DMAC config SPI_DW_MMIO tristate "Memory-mapped io interface driver for DW SPI core" depends on SPI_DESIGNWARE && HAVE_CLK # # 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" depends on EXPERIMENTAL 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_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 support would go here) endif # SPI