linux drivers spi engine - ArrowElectronics/data-storm-daq GitHub Wiki

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SPI Engine Peripheral Linux Driver

===== Supported Devices =====

====== Source Code ======

==== Status ====

^ Source ^ Mainlined? ^ | linux.github>master?drivers/spi/spi-axi-spi-engine.c | git.linux.org>drivers/spi/spi-axi-spi-engine.c |

==== Files ====

^ Function ^ File ^ | driver | linux.github>master?drivers/spi/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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