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Diffstat (limited to 'drivers/pci/pci-uclass.c')
| -rw-r--r-- | drivers/pci/pci-uclass.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c index e0d01f6a85d..1a48256de03 100644 --- a/drivers/pci/pci-uclass.c +++ b/drivers/pci/pci-uclass.c @@ -1611,6 +1611,17 @@ void *dm_pci_map_bar(struct udevice *dev, int bar, size_t offset, size_t len, dm_pci_read_config32(udev, bar, &bar_response); pci_bus_addr = (pci_addr_t)(bar_response & ~0xf); + /* This has a lot of baked in assumptions, but essentially tries + * to mirror the behavior of BAR assignment for 64 Bit enabled + * hosts and 64 bit placeable BARs in the auto assign code. + */ +#if defined(CONFIG_SYS_PCI_64BIT) + if (bar_response & PCI_BASE_ADDRESS_MEM_TYPE_64) { + dm_pci_read_config32(udev, bar + 4, &bar_response); + pci_bus_addr |= (pci_addr_t)bar_response << 32; + } +#endif /* CONFIG_SYS_PCI_64BIT */ + if (~((pci_addr_t)0) - pci_bus_addr < offset) return NULL; |