HYDRA_NIC_BASE
unsigned long ioaddr = board+HYDRA_NIC_BASE;
unsigned long hdr_start= (nic_base-HYDRA_NIC_BASE) +
unsigned long mem_base = nic_base - HYDRA_NIC_BASE;
unsigned long mem_base = nic_base - HYDRA_NIC_BASE;
release_mem_region(ZTWO_PADDR(dev->base_addr)-HYDRA_NIC_BASE, 0x10000);