[PATCH v2 10/22] PCI: xilinx-nwl: update PCI config space remap function

Lorenzo Pieralisi
2017-03-27T10:06:37Z

PCI configuration space should be mapped with a memory region type that
generates on the CPU host bus non-posted write transations. Update the
driver to use the devm_ioremap_nopost* interface to make sure the correct
memory mappings for PCI configuration space are used.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
Cc: Michal Simek <michal.simek@xilinx.com>
---
drivers/pci/host/pcie-xilinx-nwl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/host/pcie-xilinx-nwl.c b/drivers/pci/host/pcie-xilinx-nwl.c
index 4c3e0ab..cc042b1 100644
--- a/drivers/pci/host/pcie-xilinx-nwl.c
+++ b/drivers/pci/host/pcie-xilinx-nwl.c
@@ -761,7 +761,7 @@ static int nwl_pcie_parse_dt(struct nwl_pcie *pcie,
pcie->phys_pcie_reg_base = res->start;

res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg");
- pcie->ecam_base = devm_ioremap_resource(dev, res);
+ pcie->ecam_base = devm_ioremap_nopost_resource(dev, res);
if (IS_ERR(pcie->ecam_base))
return PTR_ERR(pcie->ecam_base);
pcie->phys_ecam_base = res->start;
--
2.10.0