Defined in 4 files as a label:
- sys/boot/fdt/dts/arm/bcm2835.dtsi, line 343 (as a label)
- sys/boot/fdt/dts/arm/bcm2836.dtsi, line 336 (as a label)
- sys/boot/fdt/dts/arm/rpi.dts, line 243 (as a label)
- sys/boot/fdt/dts/arm/rpi2.dts, line 260 (as a label)