ref: e9e55a21f66a3eff114025dcb1fe62570d0fa3e6
dir: /sys/src/boot/bcm/mkfile/
URL=https://github.com/raspberrypi/firmware/raw/master/boot FILES=bootcode.bin fixup_cd.dat start_cd.elf fixup4cd.dat start4cd.elf bcm2711-rpi-4-b.dtb LICENCE.broadcom all:V: $FILES clean:V: rm -f $FILES $FILES: for(i in $target){ hget -o $i $URL/$i }