| Message ID | 20170327094954.7162-18-lorenzo.pieralisi@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/pci/dwc/pcie-armada8k.c b/drivers/pci/dwc/pcie-armada8k.c index f110e3b..6bc7c7f 100644 --- a/drivers/pci/dwc/pcie-armada8k.c +++ b/drivers/pci/dwc/pcie-armada8k.c @@ -230,7 +230,7 @@ static int armada8k_pcie_probe(struct platform_device *pdev) /* Get the dw-pcie unit configuration/control registers base. */ base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ctrl"); - pci->dbi_base = devm_ioremap_resource(dev, base); + pci->dbi_base = devm_ioremap_nopost_resource(dev, base); if (IS_ERR(pci->dbi_base)) { dev_err(dev, "couldn't remap regs base %p\n", base); ret = PTR_ERR(pci->dbi_base);
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: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> --- drivers/pci/dwc/pcie-armada8k.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)