[ARM] 4595/1: ns9xxx: define registers as void __iomem * instead of volatile u32

As a consequence registers are now accessed with __raw_{read,write}[bl].

Signed-off-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/include/asm-arm/arch-ns9xxx/system.h b/include/asm-arm/arch-ns9xxx/system.h
index e3cd4d3..c1082bd 100644
--- a/include/asm-arm/arch-ns9xxx/system.h
+++ b/include/asm-arm/arch-ns9xxx/system.h
@@ -24,9 +24,9 @@
 {
 	u32 reg;
 
-	reg = SYS_PLL >> 16;
+	reg = __raw_readl(SYS_PLL) >> 16;
 	REGSET(reg, SYS_PLL, SWC, YES);
-	SYS_PLL = reg;
+	__raw_writel(reg, SYS_PLL);
 
 	BUG();
 }