NIG_REG_TIMESYNC_GEN_REG
REG_RD_DMAE(bp, port ? NIG_REG_TIMESYNC_GEN_REG + tsgen_synctime_t1 :
NIG_REG_TIMESYNC_GEN_REG + tsgen_synctime_t0, wb_data, 2);
REG_WR_DMAE(bp, NIG_REG_TIMESYNC_GEN_REG + tsgen_ctrl, wb_data, 2);