MPC85XX_PCI_ERR_DR
out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, err_detect);
err_detect = in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR);
out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, ~0);
err_detect = in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR);
out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, err_detect);
out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, err_detect);
err_detect = in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR);