Spurious Error Messages from sopc2dts - Spurious Error Messages from sopc2dts Description When you are generating the device-tree source file ( .dts ) for an SoC HPS hardware design, you might see a large number of spurious error messages. The following list shows some of messages produced by sopc2dts: sopc2dts --input soc_system.sopcinfo --output soc_system.dts --board soc_system_board_info.xml Failed to find h2f_lw_reset Failed to find f2h_reset Component hps_0 of class altera_hps is unknown Component hps_0_fpga_interfaces of class altera_interface_generator is unknown Component hps_0_hps_io of class altera_hps_io is unknown Component hps_0_clk_0 of class hps_clk_src is unknown Component hps_0 of class altera_hps is unknown Component hps_0_fpga_interfaces of class altera_interface_generator is unknown . . . DTAppend: Unable to find parent for compatible. Adding to root DTAppend: Unable to find parent for leds. Adding to root DTAppend: Unable to find parent for pmu0. Adding to root Resolution No workaround is necessary. You can safely disregard the warning messages and proceed to compile your device tree sources normally. Custom Fields values: ['novalue'] Troubleshooting novalue True ['novalue'] ['FPGA Dev Tools Quartus II Software'] 13.1 13.0.1 ['Arria® V FPGAs and SoCs', 'Cyclone® V FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']