[POWERPC] Don't try to allocate resources for a Freescale POWERPC PHB (2052d6d2) · Commits · 戴 / test

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>

arch/powerpc/kernel/pci_32.c

+18 −0

Original line number	Diff line number	Diff line
		@@ -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)
		{

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