NCR_RST
iow(db, DM9000_NCR, NCR_RST | NCR_MAC_LBK);
iow(db, DM9000_NCR, NCR_RST | NCR_MAC_LBK);
ret = regmap_write(db->regmap_dm, DM9051_NCR, NCR_RST); /* NCR reset */
sr_write_reg(dev, SR_NCR, NCR_RST);