From 2052d6d25decc04dc05beb99348b3d78f6e3490d Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Wed, 25 Jul 2007 00:44:11 -0500 Subject: [PATCH] [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 --- arch/powerpc/kernel/pci_32.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index 721a69400d65..395086f63239 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -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) { -- 2.30.2