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@xxxxxxxxxxx>
---
read/write_be are used in the USB layer to support big endian
host controllers, see drivers/usb/host/ehci.h.
PowerPC, MIPS and AVR32 have {read,write}*_be defined and by
also adding them to SPARC we no longer need to have an #ifdef
in the USB code to define them for SPARC_LEON, which is currently
done in usb-next.
---
arch/sparc/include/asm/io.h | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/arch/sparc/include/asm/io.h b/arch/sparc/include/asm/io.h
index a34b299..f6902cf 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
--
1.7.0.4
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