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: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 2 deletions

diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index 9bb4b8cbcacb..71d423a1c17a 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/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 = "";