r852_write_reg(dev, R852_CTL, dev->ctlreg | R852_CTL_ECC_ACCESS);
ecc_reg = r852_read_reg_dword(dev, R852_DATALINE);
r852_write_reg(dev, R852_CTL, dev->ctlreg);
r852_write_reg(dev, R852_CTL, dev->ctlreg | R852_CTL_ECC_ACCESS);
ecc_reg = r852_read_reg_dword(dev, R852_DATALINE);
r852_write_reg(dev, R852_CTL, dev->ctlreg);