SetTxThreshold
outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
outw(SetTxThreshold + (1536 >> 2),
outw(SetTxThreshold + (1536 >> 2), ioaddr + EL3_CMD);
outw(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);
iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD);