ref: c2a5d7e3f28e86aeef1e4e37e2b88e46af90b62c 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)