[PATCH v5 11/11] PCI: rockchip: Set address alignment for endpoint mode

Rick Wertenbroek rick.wertenbroek at gmail.com
Tue Apr 18 00:46:58 PDT 2023

From: Damien Le Moal <dlemoal at kernel.org>

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

Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller")
Cc: stable at vger.kernel.org
Signed-off-by: Damien Le Moal <dlemoal at kernel.org>
Signed-off-by: Rick Wertenbroek <rick.wertenbroek at gmail.com>
 drivers/pci/controller/pcie-rockchip-ep.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
index edfced311a9f..0af0e965fb57 100644
--- a/drivers/pci/controller/pcie-rockchip-ep.c
+++ b/drivers/pci/controller/pcie-rockchip-ep.c
@@ -442,6 +442,7 @@ static const struct pci_epc_features rockchip_pcie_epc_features = {
 	.linkup_notifier = false,
 	.msi_capable = true,
 	.msix_capable = false,
+	.align = 256,
 static const struct pci_epc_features*

More information about the Linux-rockchip mailing list