1*c66ec88fSEmmanuel VadotLattice MachXO2 Slave SPI FPGA Manager 2*c66ec88fSEmmanuel Vadot 3*c66ec88fSEmmanuel VadotLattice MachXO2 FPGAs support a method of loading the bitstream over 4*c66ec88fSEmmanuel Vadot'slave SPI' interface. 5*c66ec88fSEmmanuel Vadot 6*c66ec88fSEmmanuel VadotSee 'MachXO2ProgrammingandConfigurationUsageGuide.pdf' on www.latticesemi.com 7*c66ec88fSEmmanuel Vadot 8*c66ec88fSEmmanuel VadotRequired properties: 9*c66ec88fSEmmanuel Vadot- compatible: should contain "lattice,machxo2-slave-spi" 10*c66ec88fSEmmanuel Vadot- reg: spi chip select of the FPGA 11*c66ec88fSEmmanuel Vadot 12*c66ec88fSEmmanuel VadotExample for full FPGA configuration: 13*c66ec88fSEmmanuel Vadot 14*c66ec88fSEmmanuel Vadot fpga-region0 { 15*c66ec88fSEmmanuel Vadot compatible = "fpga-region"; 16*c66ec88fSEmmanuel Vadot fpga-mgr = <&fpga_mgr_spi>; 17*c66ec88fSEmmanuel Vadot #address-cells = <0x1>; 18*c66ec88fSEmmanuel Vadot #size-cells = <0x1>; 19*c66ec88fSEmmanuel Vadot }; 20*c66ec88fSEmmanuel Vadot 21*c66ec88fSEmmanuel Vadot spi1: spi@2000 { 22*c66ec88fSEmmanuel Vadot ... 23*c66ec88fSEmmanuel Vadot 24*c66ec88fSEmmanuel Vadot fpga_mgr_spi: fpga-mgr@0 { 25*c66ec88fSEmmanuel Vadot compatible = "lattice,machxo2-slave-spi"; 26*c66ec88fSEmmanuel Vadot spi-max-frequency = <8000000>; 27*c66ec88fSEmmanuel Vadot reg = <0>; 28*c66ec88fSEmmanuel Vadot }; 29*c66ec88fSEmmanuel Vadot }; 30