ls2k1000如何添加第二个网口请大神指点一下

ls2k1000使用默认驱动只能添加e0，修改代码添加e1时信号量初始化失败，请大神指点一下思路，如何添加第二个网口？

int rt_hw_eth_init(void)
{
struct pci_header *p = (struct pci_header *)(0x9000000000000000 | PCI_BASE);
gmac_base = (0x9000000000000000 | ((p->BaseAddressRegister[0]) & 0xffffff00));
struct synopGMACNetworkAdapter *synopGMACadapter;
static u8 mac_addr0[6] = DEFAULT_MAC_ADDRESS;
int index;
rt_sem_init(&sem_ack, "tx_ack", 1, RT_IPC_FLAG_FIFO);
rt_sem_init(&sem_lock, "eth_lock", 1, RT_IPC_FLAG_FIFO);
memset(ð_dev, 0, sizeof(eth_dev));
synopGMACadapter = (struct synopGMACNetworkAdapter *)plat_alloc_memory(sizeof(struct synopGMACNetworkAdapter));
if (!synopGMACadapter)
{
rt_kprintf("Error in Memory Allocataion, Founction : %s \n", FUNCTION);
}
memset((char *)synopGMACadapter, 0, sizeof(struct synopGMACNetworkAdapter));
synopGMACadapter->synopGMACdev = NULL;
synopGMACadapter->synopGMACdev = (synopGMACdevice *) plat_alloc_memory(sizeof(synopGMACdevice));
if (!synopGMACadapter->synopGMACdev)
{
rt_kprintf("Error in Memory Allocataion, Founction : %s \n", FUNCTION);
}
memset((char )synopGMACadapter->synopGMACdev, 0, sizeof(synopGMACdevice));
/

• Attach the device to MAC struct This will configure all the required base addresses
• such as Mac base, configuration base, phy base address(out of 32 possible phys)
• /
  synopGMAC_attach(synopGMACadapter->synopGMACdev, (gmac_base + MACBASE), gmac_base + DMABASE, DEFAULT_PHY_BASE, mac_addr0);
  init_phy(synopGMACadapter->synopGMACdev);
  synopGMAC_reset(synopGMACadapter->synopGMACdev);
  / MII setup */
  synopGMACadapter->mii.phy_id_mask = 0x1F;
  synopGMACadapter->mii.reg_num_mask = 0x1F;
  synopGMACadapter->mii.dev = synopGMACadapter;
  synopGMACadapter->mii.mdio_read = mdio_read;
  synopGMACadapter->mii.mdio_write = mdio_write;
  synopGMACadapter->mii.phy_id = synopGMACadapter->synopGMACdev->PhyBase;
  synopGMACadapter->mii.supports_gmii = mii_check_gmii_support(&synopGMACadapter->mii);
  eth_dev.iobase = gmac_base;
  eth_dev.name = "e0";
  eth_dev.priv = synopGMACadapter;
  eth_dev.dev_addr[0] = mac_addr0[0];
  eth_dev.dev_addr[1] = mac_addr0[1];
  eth_dev.dev_addr[2] = mac_addr0[2];
  eth_dev.dev_addr[3] = mac_addr0[3];
  eth_dev.dev_addr[4] = mac_addr0[4];
  eth_dev.dev_addr[5] = mac_addr0[5];
  eth_dev.parent.parent.type = RT_Device_Class_NetIf;
  eth_dev.parent.parent.init = eth_init;
  eth_dev.parent.parent.open = eth_open;
  eth_dev.parent.parent.close = eth_close;
  eth_dev.parent.parent.read = eth_read;
  eth_dev.parent.parent.write = eth_write;
  eth_dev.parent.parent.control = eth_control;
  eth_dev.parent.parent.user_data = RT_NULL;
  eth_dev.parent.eth_tx = rt_eth_tx;
  eth_dev.parent.eth_rx = rt_eth_rx;
  eth_device_init(&(eth_dev.parent), "e0");
  eth_device_linkchange(ð_dev.parent, RT_TRUE); //linkup the e0 for lwip to check
  return 0;
  }
  INIT_COMPONENT_EXPORT(rt_hw_eth_init);