diff options
| -rw-r--r-- | drivers/pci/pci_mpc85xx.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/pci/pci_mpc85xx.c b/drivers/pci/pci_mpc85xx.c index 833de816c45..249cfe66466 100644 --- a/drivers/pci/pci_mpc85xx.c +++ b/drivers/pci/pci_mpc85xx.c @@ -27,6 +27,13 @@ static int mpc85xx_pci_dm_read_config(const struct udevice *dev, pci_dev_t bdf, return 0; } + /* Skip mpc85xx PCI controller's ATMU inbound registers */ + if (PCI_BUS(bdf) == 0 && PCI_DEV(bdf) == 0 && PCI_FUNC(bdf) == 0 && + (offset & ~3) >= PCI_BASE_ADDRESS_0 && (offset & ~3) <= PCI_BASE_ADDRESS_5) { + *value = 0; + return 0; + } + addr = PCI_CONF1_ADDRESS(PCI_BUS(bdf), PCI_DEV(bdf), PCI_FUNC(bdf), offset); out_be32(priv->cfg_addr, addr); sync(); @@ -56,6 +63,11 @@ static int mpc85xx_pci_dm_write_config(struct udevice *dev, pci_dev_t bdf, if (offset > 0xff) return 0; + /* Skip mpc85xx PCI controller's ATMU inbound registers */ + if (PCI_BUS(bdf) == 0 && PCI_DEV(bdf) == 0 && PCI_FUNC(bdf) == 0 && + (offset & ~3) >= PCI_BASE_ADDRESS_0 && (offset & ~3) <= PCI_BASE_ADDRESS_5) + return 0; + addr = PCI_CONF1_ADDRESS(PCI_BUS(bdf), PCI_DEV(bdf), PCI_FUNC(bdf), offset); out_be32(priv->cfg_addr, addr); sync(); |