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PCI: mvebu: Only remap I/O space if configured

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If there is no PCI I/O aperture configured in the Device Tree, it does
not make sense to create the virtual mapping for the PCI I/O space,
since we will anyway not create the MBus window that will allow to
access it. Therefore, do the pci_ioremap_io() only if necessary.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
This commit is contained in:
Thomas Petazzoni 2018-08-03 16:38:45 +02:00 committed by Lorenzo Pieralisi
parent dfd0309fd7
commit ee1604381a
1 changed files with 3 additions and 3 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/pci/controller/pci-mvebu.c
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@ -1220,6 +1220,9 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
pcie->realio.end = min_t(resource_size_t,
IO_SPACE_LIMIT,
resource_size(&pcie->io) - 1);
for (i = 0; i < (IO_SPACE_LIMIT - SZ_64K); i += SZ_64K)
pci_ioremap_io(i, pcie->io.start + i);
} else
pcie->realio = pcie->io;
@ -1278,9 +1281,6 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
pcie->nports = i;
for (i = 0; i < (IO_SPACE_LIMIT - SZ_64K); i += SZ_64K)
pci_ioremap_io(i, pcie->io.start + i);
mvebu_pcie_enable(pcie);
return 0;