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Fix support for PCI devices behind a SSB->PCI bridge.

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10468 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
mb
2008-02-16 17:09:50 +00:00
parent 8b78178165
commit c4328f2677
3 changed files with 86 additions and 111 deletions
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21
target/linux/brcm47xx/patches-2.6.23/601-mips-remove-pci-collision-check.patch Normal file
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@@ -0,0 +1,21 @@
The SSB pcicore driver does create some MMIO resource collisions.
However, the pcicore PCI-fixup routine fixes these collisions afterwards.
Remove this sanity check for now until we find a better solution.
--mb
Index: linux-2.6.23.16/arch/mips/pci/pci.c
===================================================================
--- linux-2.6.23.16.orig/arch/mips/pci/pci.c 2008-02-16 17:55:20.000000000 +0100
+++ linux-2.6.23.16/arch/mips/pci/pci.c 2008-02-16 17:57:39.000000000 +0100
@@ -177,10 +177,8 @@ static int pcibios_enable_resources(stru
continue;
r = &dev->resource[idx];
- if (!r->start && r->end) {
- printk(KERN_ERR "PCI: Device %s not available because of resource collisions\n", pci_name(dev));
- return -EINVAL;
- }
+ if (!r->start && r->end)
+ printk(KERN_WARNING "PCI: Device %s resource collisions detected. Ignoring...\n", pci_name(dev));
if (r->flags & IORESOURCE_IO)
cmd |= PCI_COMMAND_IO;
if (r->flags & IORESOURCE_MEM)