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PCI: mvebu: Only remap I/O space if configured
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>
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1 changed files with 3 additions and 3 deletions
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@ -1220,6 +1220,9 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
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pcie->realio.end = min_t(resource_size_t,
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IO_SPACE_LIMIT,
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resource_size(&pcie->io) - 1);
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for (i = 0; i < (IO_SPACE_LIMIT - SZ_64K); i += SZ_64K)
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pci_ioremap_io(i, pcie->io.start + i);
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} else
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pcie->realio = pcie->io;
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@ -1278,9 +1281,6 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
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pcie->nports = i;
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for (i = 0; i < (IO_SPACE_LIMIT - SZ_64K); i += SZ_64K)
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pci_ioremap_io(i, pcie->io.start + i);
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mvebu_pcie_enable(pcie);
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return 0;
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