sparc: add {read,write}*_be routines

This patch adds {read,write}*_be big endian memory access
routines to the io.h header used on SPARC32 and SPARC64.

Tested on SPARC32 (LEON)

Signed-off-by: Jan Andersson <jan@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 13 insertions, 0 deletions

diff --git a/arch/sparc/include/asm/io.h b/arch/sparc/include/asm/io.h
index a34b2994937a..f6902cf3cbe9 100644
--- a/arch/sparc/include/asm/io.h
+++ b/arch/sparc/include/asm/io.h
@@ -5,4 +5,17 @@
 #else
 #include <asm/io_32.h>
 #endif
+
+/*
+ * Defines used for both SPARC32 and SPARC64
+ */
+
+/* Big endian versions of memory read/write routines */
+#define readb_be(__addr)        __raw_readb(__addr)
+#define readw_be(__addr)        __raw_readw(__addr)
+#define readl_be(__addr)        __raw_readl(__addr)
+#define writeb_be(__b, __addr)  __raw_writeb(__b, __addr)
+#define writel_be(__w, __addr)  __raw_writel(__w, __addr)
+#define writew_be(__l, __addr)  __raw_writew(__l, __addr)
+
 #endif