[SPARC64]: Add dummy host controller to root of all PCI domains.

We fake up a dummy one in all cases because that is the simplest
thing to do and it happens to be necessary for hypervisor systems.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c
index 2e5d40a26dbd..154c03290d5d 100644
--- a/arch/sparc64/kernel/pci_psycho.c
+++ b/arch/sparc64/kernel/pci_psycho.c
@@ -118,6 +118,10 @@ static int psycho_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
         u16 tmp16;
         u8 tmp8;
 
+        if (bus_dev == pbm->pci_bus && devfn == 0x00)
+                return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where,
+                                                    size, value);
+
         switch (size) {
         case 1:
                 *value = 0xff;
@@ -171,6 +175,9 @@ static int psycho_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
         unsigned char bus = bus_dev->number;
         u32 *addr;
 
+        if (bus_dev == pbm->pci_bus && devfn == 0x00)
+                return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where,
+                                                     size, value);
         addr = psycho_pci_config_mkaddr(pbm, bus, devfn, where);
         if (!addr)
                 return PCIBIOS_SUCCESSFUL;