Critical Issue
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.