TCRRCR
ioread32(ioaddr + TCRRCR));
iowrite32(np->crvalue, ioaddr + TCRRCR);
iowrite32(np->crvalue, ioaddr + TCRRCR);
iowrite32(np->crvalue, ioaddr + TCRRCR);
iowrite32(np->crvalue, ioaddr + TCRRCR);
iowrite32(crvalue & ~(CR_W_RXEN), ioaddr + TCRRCR);
if ( (ioread32(ioaddr + TCRRCR) & CR_R_RXSTOP) == CR_R_RXSTOP)
iowrite32(crvalue & ~(CR_W_RXEN+CR_W_TXEN), ioaddr + TCRRCR);
if ( (ioread32(ioaddr + TCRRCR) & (CR_R_RXSTOP+CR_R_TXSTOP))
if (ioread32(np->mem + TCRRCR) & CR_R_FD)
if (ioread32(np->mem + TCRRCR) & CR_R_PS10)