u-boot/drivers/spi/Kconfig

menu "SPI Support"

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.

if DM_SPI

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 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"
	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 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 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", "sandbox,spi-flash";
			spi-max-frequency = <40000000>;
			sandbox,filename = "spi.bin";
		};
	  };

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 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"
	depends on ARCH_ZYNQ || TARGET_XILINX_ZYNQMP
	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.

endif # if DM_SPI

config FSL_ESPI
	bool "Freescale eSPI driver"
	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 TI_QSPI
	bool "TI QSPI driver"
	help
	  Enable the TI Quad-SPI (QSPI) driver for DRA7xx and AM43xx evms.
	  This driver support spi flash single, quad and memory reads.

endmenu # menu "SPI Support"