diff options
| -rw-r--r-- | drivers/pci/pci-uclass.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c index ceb6451704..d2e10d6868 100644 --- a/drivers/pci/pci-uclass.c +++ b/drivers/pci/pci-uclass.c @@ -1213,7 +1213,14 @@ u32 dm_pci_read_bar32(const struct udevice *dev, int barnum) bar = PCI_BASE_ADDRESS_0 + barnum * 4; dm_pci_read_config32(dev, bar, &addr); - if (addr & PCI_BASE_ADDRESS_SPACE_IO) + + /* + * If we get an invalid address, return this so that comparisons with + * FDT_ADDR_T_NONE work correctly + */ + if (addr == 0xffffffff) + return addr; + else if (addr & PCI_BASE_ADDRESS_SPACE_IO) return addr & PCI_BASE_ADDRESS_IO_MASK; else return addr & PCI_BASE_ADDRESS_MEM_MASK; |