int fec_initialize (bd_t *bis);
int fecmxc_initialize(bd_t *bis);
int fecmxc_initialize_multi(bd_t *bis, int dev_id, int phy_id, uint32_t addr);
int fec_initialize (bd_t *bis);
int fecmxc_initialize(bd_t *bis);
int fecmxc_initialize_multi(bd_t *bis, int dev_id, int phy_id, uint32_t addr);