Spurious Error Messages from sopc2dts

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

No workaround is necessary. You can safely disregard the warning messages and proceed to compile your device tree sources normally.