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[POWERPC] Don't try to allocate resources for a Freescale POWERPC PHB 

The Freescale PCI PHBs actual report back values in the BAR registers
this causes issues in that we try to allocate resources for them
and will get error messages like the following on MPC8544 DS:

PCI: Failed to allocate mem resource #1:80000000@0 for 0000:00:00.0

To address this if we are class PCI_CLASS_PROCESSOR_POWERPC, a normal
header type, and the PHB we clear out all the resources.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala 2007-07-25 00:44:11 -05:00
parent 7659c038d3
commit 2052d6d25d
1 changed files with 18 additions and 0 deletions
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18
arch/powerpc/kernel/pci_32.c
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@ -59,6 +59,24 @@ LIST_HEAD(hose_list);
static int pci_bus_count;
static void
fixup_hide_host_resource_fsl(struct pci_dev* dev)
{
int i, class = dev->class >> 8;
if ((class == PCI_CLASS_PROCESSOR_POWERPC) &&
(dev->hdr_type == PCI_HEADER_TYPE_NORMAL) &&
(dev->bus->parent == NULL)) {
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
dev->resource[i].start = 0;
dev->resource[i].end = 0;
dev->resource[i].flags = 0;
}
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MOTOROLA, PCI_ANY_ID, fixup_hide_host_resource_fsl);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID, fixup_hide_host_resource_fsl);
static void
fixup_broken_pcnet32(struct pci_dev* dev)
{