TSE MAC Software Reset doesn't complete

From Altera's driver there are two interesting functions for your case

/* @Function Description: Perform switching of the TSE MAC into GMII (Gigabit) mode.
 *                        COMMAND_CONFIG register is restored after reset.
 * @API Type:   Public
 * @param pmac  Pointer to the TSE MAC Control Interface Base address 
 */
alt_32 tse_mac_setGMIImode(np_tse_mac *pmac)
{
  alt_32 helpvar;
  
  helpvar = IORD_ALTERA_TSEMAC_CMD_CONFIG(pmac);
  helpvar |= ALTERA_TSEMAC_CMD_ETH_SPEED_MSK;
  IOWR_ALTERA_TSEMAC_CMD_CONFIG(pmac,helpvar);
  return SUCCESS;
}

/* @Function Description: Change operating mode of Marvell PHY to RGMII
 * @API Type:   Internal
 * @param pmac  Pointer to the first TSE MAC Control Interface Base address within MAC group
 */
alt_32 marvell_cfg_rgmii(np_tse_mac *pmac) {
    
	alt_u16 dat = IORD(&pmac->mdio1.reg1b, 0);
    dat &= 0xfff0;
    
    tse_dprintf(5, "MARVELL : Mode changed to RGMII/Modified MII to Copper mode\n");
    IOWR(&pmac->mdio1.reg1b, 0, dat | 0xb);
    
    tse_dprintf(5, "MARVELL : Enable RGMII Timing Control\n");
    dat = IORD(&pmac->mdio1.reg14, 0);
    dat &= ~0x82;
    dat |= 0x82;
    IOWR(&pmac->mdio1.reg14, 0, dat);    
    
    tse_dprintf(5, "MARVELL : PHY reset\n");
    dat = IORD(&pmac->mdio1.CONTROL, 0); 
    IOWR(&pmac->mdio1.CONTROL, 0, dat | PCS_CTL_sw_reset);
    
    return 1;
    
}