From: Damien Le Moal <dlemoal@xxxxxxxxxx> commit 7e6689b34a815bd379dfdbe9855d36f395ef056c upstream. The address translation unit of the rockchip EP controller does not use the lower 8 bits of a PCIe-space address to map local memory. Thus we must set the align feature field to 256 to let the user know about this constraint. Link: https://lore.kernel.org/r/20230418074700.1083505-12-rick.wertenbroek@xxxxxxxxx Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller") Signed-off-by: Damien Le Moal <dlemoal@xxxxxxxxxx> Signed-off-by: Rick Wertenbroek <rick.wertenbroek@xxxxxxxxx> Signed-off-by: Lorenzo Pieralisi <lpieralisi@xxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/pci/controller/pcie-rockchip-ep.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/pci/controller/pcie-rockchip-ep.c +++ b/drivers/pci/controller/pcie-rockchip-ep.c @@ -485,6 +485,7 @@ static const struct pci_epc_features roc .linkup_notifier = false, .msi_capable = true, .msix_capable = false, + .align = 256, }; static const struct pci_epc_features*
