sparc32,leon: add support for PCI busn resource for GRPCI2

Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c
index 852dc84..88aaaa5 100644
--- a/arch/sparc/kernel/leon_pci.c
+++ b/arch/sparc/kernel/leon_pci.c
@@ -29,6 +29,8 @@
 	pci_add_resource_offset(&resources, &info->io_space,
 				info->io_space.start - 0x1000);
 	pci_add_resource(&resources, &info->mem_space);
+	info->busn.flags = IORESOURCE_BUS;
+	pci_add_resource(&resources, &info->busn);
 
 	root_bus = pci_scan_root_bus(&ofdev->dev, 0, info->ops, info,
 				     &resources);