arc: add support for SLC (System Level Cache, AKA L2-cache)

[people/ms/u-boot.git] / arch / arc / include / asm / cache.h

diff --git a/arch/arc/include/asm/cache.h b/arch/arc/include/asm/cache.h
index 27259612217265ae950ec165dc34fab310657ab8..0b3ebd9f58555a54ad284f28fcaa6ca6bb2b797f 100644 (file)
--- a/arch/arc/include/asm/cache.h
+++ b/arch/arc/include/asm/cache.h
@@ -17,10 +17,25 @@
 #define ARCH_DMA_MINALIGN              128
 #endif
 
-#if defined(CONFIG_ARC_MMU_V2)
+#if defined(ARC_MMU_ABSENT)
+#define CONFIG_ARC_MMU_VER 0
+#elif defined(CONFIG_ARC_MMU_V2)
 #define CONFIG_ARC_MMU_VER 2
 #elif defined(CONFIG_ARC_MMU_V3)
 #define CONFIG_ARC_MMU_VER 3
+#elif defined(CONFIG_ARC_MMU_V4)
+#define CONFIG_ARC_MMU_VER 4
 #endif
 
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_ISA_ARCV2
+void slc_enable(void);
+void slc_disable(void);
+void slc_flush(void);
+void slc_invalidate(void);
+#endif
+
+#endif /* __ASSEMBLY__ */
+
 #endif /* __ASM_ARC_CACHE_H */