PTP_TOD_NSEC
curr_nsec = lan_rd(lan966x, PTP_TOD_NSEC(TOD_ACC_PIN));
ns = lan_rd(lan966x, PTP_TOD_NSEC(pin));
lan_wr(ts->tv_nsec, lan966x, PTP_TOD_NSEC(TOD_ACC_PIN));
ns = lan_rd(lan966x, PTP_TOD_NSEC(TOD_ACC_PIN));
lan966x, PTP_TOD_NSEC(TOD_ACC_PIN));