1 files changed, 12 insertions, 2 deletions

diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c
index 881947e59e9..0a6f2d1798d 100644
--- a/arch/sparc/kernel/of_device_64.c
+++ b/arch/sparc/kernel/of_device_64.c
@@ -104,9 +104,19 @@ static int of_bus_pci_map(u32 *addr, const u32 *range,
         int i;
 
         /* Check address type match */
-        if ((addr[0] ^ range[0]) & 0x03000000)
-                return -EINVAL;
+        if (!((addr[0] ^ range[0]) & 0x03000000))
+                goto type_match;
+
+        /* Special exception, we can map a 64-bit address into
+         * a 32-bit range.
+         */
+        if ((addr[0] & 0x03000000) == 0x03000000 &&
+            (range[0] & 0x03000000) == 0x02000000)
+                goto type_match;
+
+        return -EINVAL;
 
+type_match:
         if (of_out_of_range(addr + 1, range + 1, range + na + pna,
                             na - 1, ns))
                 return -EINVAL;