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PCI: designware: Update PCI config space remap function

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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_pci_remap_cfg* interface to make sure the correct
memory mappings for PCI configuration space are used.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Joao Pinto <Joao.Pinto@synopsys.com>
This commit is contained in:
Lorenzo Pieralisi 2017-04-19 17:49:03 +01:00 committed by Bjorn Helgaas
parent 868564da65
commit cc7b0d4955
1 changed files with 7 additions and 5 deletions
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12
drivers/pci/dwc/pcie-designware-host.c
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@ -338,8 +338,9 @@ int dw_pcie_host_init(struct pcie_port *pp)
}
if (!pci->dbi_base) {
pci->dbi_base = devm_ioremap(dev, pp->cfg->start,
resource_size(pp->cfg));
pci->dbi_base = devm_pci_remap_cfgspace(dev,
pp->cfg->start,
resource_size(pp->cfg));
if (!pci->dbi_base) {
dev_err(dev, "error with ioremap\n");
ret = -ENOMEM;
@ -350,8 +351,8 @@ int dw_pcie_host_init(struct pcie_port *pp)
pp->mem_base = pp->mem->start;
if (!pp->va_cfg0_base) {
pp->va_cfg0_base = devm_ioremap(dev, pp->cfg0_base,
pp->cfg0_size);
pp->va_cfg0_base = devm_pci_remap_cfgspace(dev,
pp->cfg0_base, pp->cfg0_size);
if (!pp->va_cfg0_base) {
dev_err(dev, "error with ioremap in function\n");
ret = -ENOMEM;
@ -360,7 +361,8 @@ int dw_pcie_host_init(struct pcie_port *pp)
}
if (!pp->va_cfg1_base) {
pp->va_cfg1_base = devm_ioremap(dev, pp->cfg1_base,
pp->va_cfg1_base = devm_pci_remap_cfgspace(dev,
pp->cfg1_base,
pp->cfg1_size);
if (!pp->va_cfg1_base) {
dev_err(dev, "error with ioremap\n");