[PATCH] m68k: Sun-3 missing sbus_readl()

From: Geert Uytterhoeven <geert@linux-m68k.org>

Sun-3 sbus: Add missing definition of sbus_readl() (from Sam Creasey)

include/asm-m68k/sbus.h

@@ -36,8 +36,15 @@ static inline void _sbus_writel(unsigned long val, unsigned long addr)
 
 }
 
+extern inline unsigned long _sbus_readl(unsigned long addr)
+{
+	return *(volatile unsigned long *)addr;
+}
+
+
 #define sbus_readb(a) _sbus_readb((unsigned long)a)
 #define sbus_writeb(v, a) _sbus_writeb(v, (unsigned long)a)
+#define sbus_readl(a) _sbus_readl((unsigned long)a)
 #define sbus_writel(v, a) _sbus_writel(v, (unsigned long)a)
 
 #endif