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[RFC,22/30] PCI: cadence: Configure pci_epc_features to align BAR addresses to 256 Bytes

Message ID 20190604131516.13596-23-kishon@ti.com
State New
Headers show
Series None | expand

Commit Message

Kishon Vijay Abraham I June 4, 2019, 1:15 p.m. UTC 
Cadence PCIe controller has BITS[7:0] of the Inbound Address
Translation Units AXI address reserved for special purpose. In order to
accommodate this constraint, BAR addresses should be aligned to 256 Byte
addresses. Configure pci_epc_features to align BAR addresses to 256
Bytes here.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

---
 drivers/pci/controller/pcie-cadence-ep.c | 1 +
 1 file changed, 1 insertion(+)

-- 
2.17.1
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Patch

diff --git a/drivers/pci/controller/pcie-cadence-ep.c b/drivers/pci/controller/pcie-cadence-ep.c
index 3dc1a896c1e6..25638af7c668 100644
--- a/drivers/pci/controller/pcie-cadence-ep.c
+++ b/drivers/pci/controller/pcie-cadence-ep.c
@@ -484,6 +484,7 @@  static const struct pci_epc_features cdns_pcie_epc_features = {
 	.linkup_notifier = false,
 	.msi_capable = true,
 	.msix_capable = false,
+	.align = 256,
 };
 
 static const struct pci_epc_features cdns_pcie_epc_vf_features = {