The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/fpga/lattice-machxo2-spi.txt

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    1 Lattice MachXO2 Slave SPI FPGA Manager
    2 
    3 Lattice MachXO2 FPGAs support a method of loading the bitstream over
    4 'slave SPI' interface.
    5 
    6 See 'MachXO2ProgrammingandConfigurationUsageGuide.pdf' on www.latticesemi.com
    7 
    8 Required properties:
    9 - compatible: should contain "lattice,machxo2-slave-spi"
   10 - reg: spi chip select of the FPGA
   11 
   12 Example for full FPGA configuration:
   13 
   14         fpga-region0 {
   15                 compatible = "fpga-region";
   16                 fpga-mgr = <&fpga_mgr_spi>;
   17                 #address-cells = <0x1>;
   18                 #size-cells = <0x1>;
   19         };
   20 
   21         spi1: spi@2000 {
   22         ...
   23 
   24                 fpga_mgr_spi: fpga-mgr@0 {
   25                         compatible = "lattice,machxo2-slave-spi";
   26                         spi-max-frequency = <8000000>;
   27                         reg = <0>;
   28                 };
   29         };

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