B2_MAC_1
memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN);
memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN);
memcpy_fromio(addr, hw->regs + B2_MAC_1 + port*8, ETH_ALEN);
memcpy_toio(hw->regs + B2_MAC_1 + port * 8,
memcpy_fromio(addr, hw->regs + B2_MAC_1 + port * 8, ETH_ALEN);