TCR_ENABLE
outw( inw( ioaddr + TCR ) | TCR_ENABLE, ioaddr + TCR );
#define TCR_NORMAL TCR_ENABLE
outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
outw(inw(ioaddr + TCR) | TCR_ENABLE | smc->duplex, ioaddr + TCR);
#define TCR_NORMAL TCR_ENABLE | TCR_PAD_EN
TCR_ENABLE | TCR_PAD_EN | smc->duplex, ioaddr + TCR);
#define TCR_DEFAULT (TCR_ENABLE | TCR_PAD_EN)