xtensa: add ioremap_nocache declaration before include asm-generic/io.h.

A future commit for the nds32 architecture bootstrap("asm-generic/io.h:
move ioremap_nocache/ioremap_uc/ioremap_wc/ioremap_wt out of ifndef
CONFIG_MMU") will move the ioremap_nocache out of the CONFIG_MMU ifdef.
This means that in order to suppress re-definition errors we need to
setup #define's before importing asm-generic/io.h.

Signed-off-by: Greentime Hu <greentime@andestech.com>

diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h
index c38e5a732d86f69b44826349314a6fb286305985..acc5bb2cf1c77328cc502dcf69cace9af5b8b3d9 100644 (file)
--- a/arch/xtensa/include/asm/io.h
+++ b/arch/xtensa/include/asm/io.h
@@ -52,6 +52,7 @@ static inline void __iomem *ioremap_cache(unsigned long offset,
                return xtensa_ioremap_cache(offset, size);
 }
 #define ioremap_cache ioremap_cache
+#define ioremap_nocache ioremap_nocache
 
 #define ioremap_wc ioremap_nocache
 #define ioremap_wt ioremap_nocache