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

   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         };