ref: 6fbb1acc8fa0b6655b14e8c46240a4a8d2d8c672 dir: /sys/src/9/imx8/init9.s/
TEXT main(SB), 1, $8 MOV $setSB(SB), R28 /* load the SB */ MOV $boot(SB), R0 B startboot(SB)