=> fdt list / / { model = "tqc,tqm8548"; compatible = "tqc,tqm8548"; #address-cells = <0x1>; #size-cells = <0x1>; aliases { }; cpus { }; memory { }; soc8548@e0000000 { }; localbus@e0005000 { }; pci@e0008000 { }; pcie@e000a000 { }; }; => fdt mknode / testnode => fdt list / / { model = "tqc,tqm8548"; compatible = "tqc,tqm8548"; #address-cells = <0x1>; #size-cells = <0x1>; testnode { }; aliases { }; cpus { }; memory { }; soc8548@e0000000 { }; localbus@e0005000 { }; pci@e0008000 { }; pcie@e000a000 { }; }; => fdt list /testnode testnode { }; =>