BIGMAC2_REGISTER_BMAC_CONTROL
offset = CHIP_IS_E2(sc) ? BIGMAC2_REGISTER_BMAC_CONTROL
REG_WR_DMAE(sc, bmac_addr + BIGMAC2_REGISTER_BMAC_CONTROL, wb_data, 2);
REG_WR_DMAE(sc, bmac_addr + BIGMAC2_REGISTER_BMAC_CONTROL, wb_data, 2);
bmac_addr += BIGMAC2_REGISTER_BMAC_CONTROL;