[POWERPC] ps3: add spu support

Adds spu support for the PS3 platform.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h
index d9948df..23b111b 100644
--- a/arch/powerpc/platforms/ps3/platform.h
+++ b/arch/powerpc/platforms/ps3/platform.h
@@ -57,4 +57,12 @@
 int __init ps3_os_area_init(void);
 u64 ps3_os_area_rtc_diff(void);
 
+/* spu */
+
+#if defined(CONFIG_SPU_BASE)
+void ps3_spu_set_platform (void);
+#else
+static inline void ps3_spu_set_platform (void) {}
+#endif
+
 #endif