REG_MAC_ADDRN
cp->regs + REG_MAC_ADDRN(i*3 + 0));
cp->regs + REG_MAC_ADDRN(i*3 + 1));
cp->regs + REG_MAC_ADDRN(i*3 + 2));
writel(0x0, cp->regs + REG_MAC_ADDRN(i));
writel((e[4] << 8) | e[5], cp->regs + REG_MAC_ADDRN(0));
writel((e[2] << 8) | e[3], cp->regs + REG_MAC_ADDRN(1));
writel((e[0] << 8) | e[1], cp->regs + REG_MAC_ADDRN(2));
writel(0x0001, cp->regs + REG_MAC_ADDRN(42));
writel(0xc200, cp->regs + REG_MAC_ADDRN(43));
writel(0x0180, cp->regs + REG_MAC_ADDRN(44));