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powerpc/pci: Call pcie_bus_configure_settings()

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This new function is used to properly setup the PCI Express Max Payload Size
(and in some circumstances Max Read Request Size).

Some systems will not operate properly if these aren't set correctly and
the firmware doesn't always do it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt 2011-09-19 17:44:50 +00:00
parent fb82b83970
commit 781fb7a3e4
1 changed files with 11 additions and 0 deletions
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11
arch/powerpc/kernel/pci-common.c
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@ -1730,6 +1730,17 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose)
if (mode == PCI_PROBE_NORMAL)
hose->last_busno = bus->subordinate = pci_scan_child_bus(bus);
/* Configure PCI Express settings */
if (bus) {
struct pci_bus *child;
list_for_each_entry(child, &bus->children, node) {
struct pci_dev *self = child->self;
if (!self)
continue;
pcie_bus_configure_settings(child, self->pcie_mpss);
}
}
}
static void fixup_hide_host_resource_fsl(struct pci_dev *dev)