[MIPS] SB1250: Fix bugs/warnings by creative use of volatile.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 10 insertions, 8 deletions

diff --git a/arch/mips/sibyte/swarm/setup.c b/arch/mips/sibyte/swarm/setup.c
index defa1f1452ad..83572d8f3e14 100644
--- a/arch/mips/sibyte/swarm/setup.c
+++ b/arch/mips/sibyte/swarm/setup.c
@@ -169,17 +169,19 @@ void __init plat_mem_setup(void)
 #define LEDS_PHYS MLEDS_PHYS
 #endif
 
-#define setled(index, c) \
-  ((unsigned char *)(IOADDR(LEDS_PHYS)+0x20))[(3-(index))<<3] = (c)
 void setleds(char *str)
 {
+        void *reg;
         int i;
+
         for (i = 0; i < 4; i++) {
-                if (!str[i]) {
-                        setled(i, ' ');
-                } else {
-                        setled(i, str[i]);
-                }
+                reg = IOADDR(LEDS_PHYS) + 0x20 + ((3 - i) << 3);
+
+                if (!str[i])
+                        writeb(' ', reg);
+                else
+                        writeb(str[i], reg);
         }
 }
-#endif
+
+#endif /* LEDS_PHYS */