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Commit d549ac08 authored by Paolo Pisati's avatar Paolo Pisati Committed by Greg Kroah-Hartman
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dt: bindings: fpga: add lattice machxo2 slave spi binding description 



Add dt binding documentation details for Lattice MachXO2 FPGA configuration
over Slave SPI interface.

Signed-off-by: default avatarPaolo Pisati <p.pisati@gmail.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Acked-by: default avatarAlan Tull <atull@kernel.org>
Signed-off-by: default avatarMoritz Fischer <mdf@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 84d84c5b

Documentation/devicetree/bindings/fpga/lattice-machxo2-spi.txt

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Lattice MachXO2 Slave SPI FPGA Manager



Lattice MachXO2 FPGAs support a method of loading the bitstream over

'slave SPI' interface.



See 'MachXO2ProgrammingandConfigurationUsageGuide.pdf' on www.latticesemi.com



Required properties:

- compatible: should contain "lattice,machxo2-slave-spi"

- reg: spi chip select of the FPGA



Example for full FPGA configuration:



	fpga-region0 {

		compatible = "fpga-region";

		fpga-mgr = <&fpga_mgr_spi>;

		#address-cells = <0x1>;

		#size-cells = <0x1>;

	};



	spi1: spi@2000 {

        ...



		fpga_mgr_spi: fpga-mgr@0 {

			compatible = "lattice,machxo2-slave-spi";

			spi-max-frequency = <8000000>;

			reg = <0>;

		};

	};