sparc64: Propagate PCI device archdata into OF device tree for EBUS.

In order to convert EBUS drivers doing DMA into pure OF drivers,
we need the of_device->dev.archdata setup properly.

EBUS instances that can provide DMA for device nodes sit on PCI,
so detect and propagate the information there.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

arch/sparc64/kernel/pci.c

@@ -337,6 +337,7 @@ struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
 				  struct pci_bus *bus, int devfn)
 {
 	struct dev_archdata *sd;
+	struct of_device *op;
 	struct pci_dev *dev;
 	const char *type;
 	u32 class;
@@ -350,14 +351,17 @@ struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
 	sd->stc = &pbm->stc;
 	sd->host_controller = pbm;
 	sd->prom_node = node;
-	sd->op = of_find_device_by_node(node);
+	sd->op = op = of_find_device_by_node(node);
 	sd->numa_node = pbm->numa_node;
 
-	sd = &sd->op->dev.archdata;
+	sd = &op->dev.archdata;
 	sd->iommu = pbm->iommu;
 	sd->stc = &pbm->stc;
 	sd->numa_node = pbm->numa_node;
 
+	if (!strcmp(node->name, "ebus"))
+		of_propagate_archdata(op);
+
 	type = of_get_property(node, "device_type", NULL);
 	if (type == NULL)
 		type = "";