MESON_AOBUS_PWR_CTRL1_REG
pwr_cntl1 = bus_space_read_4(bst, ao_bsh, MESON_AOBUS_PWR_CTRL1_REG);
bus_space_write_4(bst, ao_bsh, MESON_AOBUS_PWR_CTRL1_REG, pwr_cntl1);
MESON_AOBUS_PWR_CTRL1_REG) & ((1 << 17) << (cpuno - 1));