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-rw-r--r--arch/sparc/kernel/of_device_32.c21
-rw-r--r--arch/sparc/kernel/of_device_64.c21
2 files changed, 38 insertions, 4 deletions
diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c
index 0a83bd73765..c8f14c1dc52 100644
--- a/arch/sparc/kernel/of_device_32.c
+++ b/arch/sparc/kernel/of_device_32.c
@@ -246,8 +246,25 @@ static unsigned long of_bus_pci_get_flags(const u32 *addr, unsigned long flags)
static int of_bus_sbus_match(struct device_node *np)
{
- return !strcmp(np->name, "sbus") ||
- !strcmp(np->name, "sbi");
+ struct device_node *dp = np;
+
+ while (dp) {
+ if (!strcmp(dp->name, "sbus") ||
+ !strcmp(dp->name, "sbi"))
+ return 1;
+
+ /* Have a look at use_1to1_mapping(). We're trying
+ * to match SBUS if that's the top-level bus and we
+ * don't have some intervening real bus that provides
+ * ranges based translations.
+ */
+ if (of_find_property(dp, "ranges", NULL) != NULL)
+ break;
+
+ dp = dp->parent;
+ }
+
+ return 0;
}
static void of_bus_sbus_count_cells(struct device_node *child,
diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c
index 27381f1baff..5ac287ac03d 100644
--- a/arch/sparc/kernel/of_device_64.c
+++ b/arch/sparc/kernel/of_device_64.c
@@ -300,8 +300,25 @@ static unsigned long of_bus_pci_get_flags(const u32 *addr, unsigned long flags)
static int of_bus_sbus_match(struct device_node *np)
{
- return !strcmp(np->name, "sbus") ||
- !strcmp(np->name, "sbi");
+ struct device_node *dp = np;
+
+ while (dp) {
+ if (!strcmp(dp->name, "sbus") ||
+ !strcmp(dp->name, "sbi"))
+ return 1;
+
+ /* Have a look at use_1to1_mapping(). We're trying
+ * to match SBUS if that's the top-level bus and we
+ * don't have some intervening real bus that provides
+ * ranges based translations.
+ */
+ if (of_find_property(dp, "ranges", NULL) != NULL)
+ break;
+
+ dp = dp->parent;
+ }
+
+ return 0;
}
static void of_bus_sbus_count_cells(struct device_node *child,