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PCI: xgene: Add support for a 64-bit prefetchable memory window

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X-Gene PCIe controller has registers to support multiple memory ranges.

Add support for a 64-bit prefetchable memory window.

[bhelgaas: changelog]
Signed-off-by: Duc Dang <dhdang@apm.com>
Signed-off-by: Tanmay Inamdar <tinamdar@apm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Duc Dang 2015-07-09 14:20:12 -07:00 committed by Bjorn Helgaas
parent 80bb3eda74
commit 8ef54f27f6
1 changed files with 10 additions and 2 deletions
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12
drivers/pci/host/pci-xgene.c
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@ -321,8 +321,16 @@ static int xgene_pcie_map_ranges(struct xgene_pcie_port *port,
return ret;
break;
case IORESOURCE_MEM:
xgene_pcie_setup_ob_reg(port, res, OMR1BARL, res->start,
res->start - window->offset);
if (res->flags & IORESOURCE_PREFETCH)
xgene_pcie_setup_ob_reg(port, res, OMR2BARL,
res->start,
res->start -
window->offset);
else
xgene_pcie_setup_ob_reg(port, res, OMR1BARL,
res->start,
res->start -
window->offset);
break;
case IORESOURCE_BUS:
break;