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e19b900457
This driver implements SPI protocol in master mode to communicate
with the SPI device connected on SPI bus. It handles /CS explicitly
by controlling respective pin as gpio ('cs-gpios' property in dt node)
and uses PIO mode for SPI transaction. It is configurable based
on driver-model only.
Cc: Jagan Teki <jteki@openedev.com>
Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
197 lines
6.2 KiB
Text
197 lines
6.2 KiB
Text
menu "SPI Support"
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config DM_SPI
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bool "Enable Driver Model for SPI drivers"
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depends on DM
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help
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Enable driver model for SPI. The SPI slave interface
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(spi_setup_slave(), spi_xfer(), etc.) is then implemented by
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the SPI uclass. Drivers provide methods to access the SPI
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buses that they control. The uclass interface is defined in
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include/spi.h. The existing spi_slave structure is attached
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as 'parent data' to every slave on each bus. Slaves
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typically use driver-private data instead of extending the
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spi_slave structure.
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if DM_SPI
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config ALTERA_SPI
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bool "Altera SPI driver"
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help
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Enable the Altera SPI driver. This driver can be used to
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access the SPI NOR flash on platforms embedding this Altera
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IP core. Please find details on the "Embedded Peripherals IP
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User Guide" of Altera.
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config ATH79_SPI
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bool "Atheros SPI driver"
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depends on ARCH_ATH79
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help
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Enable the Atheros ar7xxx/ar9xxx SoC SPI driver, it was used
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to access SPI NOR flash and other SPI peripherals. This driver
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uses driver model and requires a device tree binding to operate.
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please refer to doc/device-tree-bindings/spi/spi-ath79.txt.
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config CADENCE_QSPI
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bool "Cadence QSPI driver"
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help
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Enable the Cadence Quad-SPI (QSPI) driver. This driver can be
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used to access the SPI NOR flash on platforms embedding this
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Cadence IP core.
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config DESIGNWARE_SPI
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bool "Designware SPI driver"
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help
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Enable the Designware SPI driver. This driver can be used to
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access the SPI NOR flash on platforms embedding this Designware
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IP core.
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config EXYNOS_SPI
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bool "Samsung Exynos SPI driver"
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help
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Enable the Samsung Exynos SPI driver. This driver can be used to
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access the SPI NOR flash on platforms embedding this Samsung
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Exynos IP core.
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config FSL_DSPI
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bool "Freescale DSPI driver"
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help
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Enable the Freescale DSPI driver. This driver can be used to
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access the SPI NOR flash and SPI Data flash on platforms embedding
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this Freescale DSPI IP core. LS102xA and Colibri VF50/VF61 platforms
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use this driver.
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config FSL_QSPI
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bool "Freescale QSPI driver"
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help
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Enable the Freescale Quad-SPI (QSPI) driver. This driver can be
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used to access the SPI NOR flash on platforms embedding this
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Freescale IP core.
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config ICH_SPI
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bool "Intel ICH SPI driver"
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help
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Enable the Intel ICH SPI driver. This driver can be used to
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access the SPI NOR flash on platforms embedding this Intel
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ICH IP core.
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config PIC32_SPI
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bool "Microchip PIC32 SPI driver"
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depends on MACH_PIC32
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help
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Enable the Microchip PIC32 SPI driver. This driver can be used
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to access the SPI NOR flash, MMC-over-SPI on platforms based on
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Microchip PIC32 family devices.
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config ROCKCHIP_SPI
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bool "Rockchip SPI driver"
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help
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Enable the Rockchip SPI driver, used to access SPI NOR flash and
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other SPI peripherals (such as the Chrome OS EC) on Rockchip SoCs.
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This uses driver model and requires a device tree binding to
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operate.
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config SANDBOX_SPI
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bool "Sandbox SPI driver"
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depends on SANDBOX && DM
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help
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Enable SPI support for sandbox. This is an emulation of a real SPI
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bus. Devices can be attached to the bus using the device tree
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which specifies the driver to use. As an example, see this device
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tree fragment from sandbox.dts. It shows that the SPI bus has a
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single flash device on chip select 0 which is emulated by the driver
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for "sandbox,spi-flash", which is in drivers/mtd/spi/sandbox.c.
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spi@0 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0>;
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compatible = "sandbox,spi";
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cs-gpios = <0>, <&gpio_a 0>;
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flash@0 {
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reg = <0>;
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compatible = "spansion,m25p16", "sandbox,spi-flash";
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spi-max-frequency = <40000000>;
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sandbox,filename = "spi.bin";
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};
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};
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config TEGRA114_SPI
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bool "nVidia Tegra114 SPI driver"
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help
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Enable the nVidia Tegra114 SPI driver. This driver can be used to
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access the SPI NOR flash on platforms embedding this nVidia Tegra114
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IP core.
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This controller is different than the older SoCs SPI controller and
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also register interface get changed with this controller.
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config TEGRA20_SFLASH
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bool "nVidia Tegra20 Serial Flash controller driver"
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help
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Enable the nVidia Tegra20 Serial Flash controller driver. This driver
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can be used to access the SPI NOR flash on platforms embedding this
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nVidia Tegra20 IP core.
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config TEGRA20_SLINK
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bool "nVidia Tegra20/Tegra30 SLINK driver"
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help
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Enable the nVidia Tegra20/Tegra30 SLINK driver. This driver can
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be used to access the SPI NOR flash on platforms embedding this
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nVidia Tegra20/Tegra30 IP cores.
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config TEGRA210_QSPI
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bool "nVidia Tegra210 QSPI driver"
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help
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Enable the Tegra Quad-SPI (QSPI) driver for T210. This driver
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be used to access SPI chips on platforms embedding this
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NVIDIA Tegra210 IP core.
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config XILINX_SPI
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bool "Xilinx SPI driver"
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help
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Enable the Xilinx SPI driver from the Xilinx EDK. This SPI
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controller support 8 bit SPI transfers only, with or w/o FIFO.
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For more info on Xilinx SPI Register Definitions and Overview
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see driver file - drivers/spi/xilinx_spi.c
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config ZYNQ_SPI
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bool "Zynq SPI driver"
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depends on ARCH_ZYNQ || ARCH_ZYNQMP
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help
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Enable the Zynq SPI driver. This driver can be used to
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access the SPI NOR flash on platforms embedding this Zynq
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SPI IP core.
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config ZYNQ_QSPI
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bool "Zynq QSPI driver"
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depends on ARCH_ZYNQ
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help
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Enable the Zynq Quad-SPI (QSPI) driver. This driver can be
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used to access the SPI NOR flash on platforms embedding this
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Zynq QSPI IP core. This IP is used to connect the flash in
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4-bit qspi, 8-bit dual stacked and shared 4-bit dual parallel.
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config OMAP3_SPI
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bool "McSPI driver for OMAP"
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help
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SPI master controller for OMAP24XX and later Multichannel SPI
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(McSPI). This driver be used to access SPI chips on platforms
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embedding this OMAP3 McSPI IP core.
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endif # if DM_SPI
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config FSL_ESPI
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bool "Freescale eSPI driver"
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help
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Enable the Freescale eSPI driver. This driver can be used to
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access the SPI interface and SPI NOR flash on platforms embedding
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this Freescale eSPI IP core.
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config TI_QSPI
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bool "TI QSPI driver"
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help
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Enable the TI Quad-SPI (QSPI) driver for DRA7xx and AM43xx evms.
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This driver support spi flash single, quad and memory reads.
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endmenu # menu "SPI Support"
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