From mboxrd@z Thu Jan 1 00:00:00 1970 From: Moritz Fischer Subject: [PATCH 1/3] dt: bindings: fpga: add lattice machxo2 slave spi binding description Date: Mon, 16 Apr 2018 20:43:35 -0700 Message-ID: <20180417034337.8855-2-mdf@kernel.org> References: <20180417034337.8855-1-mdf@kernel.org> Return-path: In-Reply-To: <20180417034337.8855-1-mdf@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: gregkh@linux-foundation.org Cc: linux-fpga.vger@kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, atull@kernel.org, robh+dt@kernel.org, Paolo Pisati , Moritz Fischer List-Id: devicetree@vger.kernel.org From: Paolo Pisati Add dt binding documentation details for Lattice MachXO2 FPGA configuration over Slave SPI interface. Signed-off-by: Paolo Pisati Acked-by: Rob Herring Acked-by: Alan Tull Signed-off-by: Moritz Fischer --- .../bindings/fpga/lattice-machxo2-spi.txt | 29 +++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/fpga/lattice-machxo2-spi.txt diff --git a/Documentation/devicetree/bindings/fpga/lattice-machxo2-spi.txt b/Documentation/devicetree/bindings/fpga/lattice-machxo2-spi.txt new file mode 100644 index 000000000000..a8c362eb160c --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/lattice-machxo2-spi.txt @@ -0,0 +1,29 @@ +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>; + }; + }; -- 2.17.0