1 files changed, 15 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 89f46f377922..325f490a10cc 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -124,6 +124,10 @@ static int __init add_legacy_soc_port(struct device_node *np,
         if (get_property(np, "clock-frequency", NULL) == NULL)
                 return -1;
 
+        /* if rtas uses this device, don't try to use it as well */
+        if (get_property(np, "used-by-rtas", NULL) != NULL)
+                return -1;
+
         /* Get the address */
         addrp = of_get_address(soc_dev, 0, NULL, NULL);
         if (addrp == NULL)
@@ -334,6 +338,17 @@ void __init find_legacy_serial_ports(void)
                 of_node_put(tsi);
         }
 
+        /* First fill our array with opb bus ports */
+        for (np = NULL; (np = of_find_compatible_node(np, "serial", "ns16750")) != NULL;) {
+                struct device_node *opb = of_get_parent(np);
+                if (opb && !strcmp(opb->type, "opb")) {
+                        index = add_legacy_soc_port(np, np);
+                        if (index >= 0 && np == stdout)
+                                legacy_serial_console = index;
+                }
+                of_node_put(opb);
+        }
+
 #ifdef CONFIG_PCI
         /* Next, try to locate PCI ports */
         for (np = NULL; (np = of_find_all_nodes(np));) {