SPI Engine

SPI Engine Peripheral Linux Driver.

Supported Devices

Source Code

Status

Source

Mainlined?

git

yes (No offloading support)

Files

Function

File

driver

spi-axi-spi-engine.c

Device initialization

Devicetree bindings

Required properties:

  • compatible: Must be adi,axi-spi-engine-1.00.a``

  • reg: Physical base address and size of the register map.

  • interrupts: Property with a value describing the interrupt number.

  • clock-names: List of input clock names - s_axi_aclk, spi_clk

  • clocks: Clock phandles and specifiers (See clock bindings for details on clock-names and clocks).

  • #address-cells: Must be <1>

  • #size-cells: Must be <0>

Optional subnodes

Subnodes are use to represent the SPI slave devices connected to the SPI master. They follow the generic SPI bindings as outlined in spi-bus.txt.

Example

spi@@44a00000 {
    compatible = "adi,axi-spi-engine-1.00.a";
    reg = <0x44a00000 0x1000>;
    interrupts = <0 56 4>;
    clocks = <&clkc 15 &clkc 15>;
    clock-names = "s_axi_aclk", "spi_clk";
    #address-cells = <1>;
    #size-cells = <0>;
    /* SPI devices */
};

More information

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