1 files changed, 4 insertions, 0 deletions

diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 65eaae34e753..61f6dae40534 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -260,6 +260,10 @@ __ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags)
 
                 return (void __iomem *)P2SEGADDR(offset);
         }
+
+        /* P4 above the store queues are always mapped. */
+        if (unlikely(offset >= P3_ADDR_MAX))
+                return (void __iomem *)P4SEGADDR(offset);
 #endif
 
         return __ioremap(offset, size, flags);