RE_EFUSEAR
CSR_WRITE_4(sc, RE_EFUSEAR, temp);
temp = CSR_READ_4(sc, RE_EFUSEAR);
efuse_data = (u_int8_t)(CSR_READ_4(sc, RE_EFUSEAR) & EFUSE_Data_Mask);
CSR_WRITE_4(sc, RE_EFUSEAR, temp);
temp = CSR_READ_4(sc, RE_EFUSEAR);
temp = CSR_READ_4(sc, RE_EFUSEAR);
CSR_WRITE_4(sc, RE_EFUSEAR, temp);
temp = CSR_READ_4(sc, RE_EFUSEAR);
temp = CSR_READ_4(sc, RE_EFUSEAR);