Driver pci_mpc85xx.c is PCI controller driver for old PCI Local Bus, which does not support access to extended PCIe registers (above 0xff), as opposite of the PCIe driver pcie_fsl.c for the same platform.
So do not try to access extended PCIe registers as it cannot work.
Signed-off-by: Pali Rohár pali@kernel.org --- drivers/pci/pci_mpc85xx.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/pci_mpc85xx.c b/drivers/pci/pci_mpc85xx.c index d144f2b791b8..833de816c459 100644 --- a/drivers/pci/pci_mpc85xx.c +++ b/drivers/pci/pci_mpc85xx.c @@ -22,7 +22,12 @@ static int mpc85xx_pci_dm_read_config(const struct udevice *dev, pci_dev_t bdf, struct mpc85xx_pci_priv *priv = dev_get_priv(dev); u32 addr;
- addr = PCI_CONF1_EXT_ADDRESS(PCI_BUS(bdf), PCI_DEV(bdf), PCI_FUNC(bdf), offset); + if (offset > 0xff) { + *value = pci_get_ff(size); + return 0; + } + + addr = PCI_CONF1_ADDRESS(PCI_BUS(bdf), PCI_DEV(bdf), PCI_FUNC(bdf), offset); out_be32(priv->cfg_addr, addr); sync();
@@ -48,7 +53,10 @@ static int mpc85xx_pci_dm_write_config(struct udevice *dev, pci_dev_t bdf, struct mpc85xx_pci_priv *priv = dev_get_priv(dev); u32 addr;
- addr = PCI_CONF1_EXT_ADDRESS(PCI_BUS(bdf), PCI_DEV(bdf), PCI_FUNC(bdf), offset); + if (offset > 0xff) + return 0; + + addr = PCI_CONF1_ADDRESS(PCI_BUS(bdf), PCI_DEV(bdf), PCI_FUNC(bdf), offset); out_be32(priv->cfg_addr, addr); sync();