[PATCH] ppc32: Fix pmac compile after OCP changes

From: Paul Mackerras <paulus@samba.org>

Matt Porter's recent changes broke the compile for non-4xx ppc32 systems,
unfortunately.  I get an error that mfdcr is not defined in
include/asm-ppc/ocp.h when compiling for powermac (reasonable, since the
mfdcr instruction only exists on 4xx processors).  The patch below fixes
it.

include/asm-ppc/ocp.h

@@ -35,6 +35,8 @@
 #include <asm/rwsem.h>
 #include <asm/semaphore.h>
 
+#ifdef CONFIG_PPC_OCP
+
 #define OCP_MAX_IRQS	7
 #define MAX_EMACS	4
 #define OCP_IRQ_NA	-1	/* used when ocp device does not have an irq */
@@ -200,5 +202,6 @@ static DEVICE_ATTR(name##_##field, S_IRUGO, show_##name##_##field, NULL);
 #include <asm/ibm_ocp.h>
 #endif
 
+#endif				/* CONFIG_PPC_OCP */
 #endif				/* __OCP_H__ */
 #endif				/* __KERNEL__ */