nios2: Cache handling

This patch adds functionality required for cache maintenance.

Signed-off-by: Ley Foon Tan <lftan@altera.com>

diff --git a/arch/nios2/include/asm/cache.h b/arch/nios2/include/asm/cache.h
new file mode 100644 (file)
index 0000000..2293cf5
--- /dev/null
+++ b/arch/nios2/include/asm/cache.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2004 Microtronix Datacom Ltd.
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT.  See the GNU General Public License for more
+ * details.
+ */
+
+#ifndef _ASM_NIOS2_CACHE_H
+#define _ASM_NIOS2_CACHE_H
+
+#define NIOS2_DCACHE_SIZE      CONFIG_NIOS2_DCACHE_SIZE
+#define NIOS2_ICACHE_SIZE      CONFIG_NIOS2_ICACHE_SIZE
+#define NIOS2_DCACHE_LINE_SIZE CONFIG_NIOS2_DCACHE_LINE_SIZE
+#define NIOS2_ICACHE_LINE_SHIFT        5
+#define NIOS2_ICACHE_LINE_SIZE (1 << NIOS2_ICACHE_LINE_SHIFT)
+
+/* bytes per L1 cache line */
+#define L1_CACHE_SHIFT         NIOS2_ICACHE_LINE_SHIFT
+#define L1_CACHE_BYTES         NIOS2_ICACHE_LINE_SIZE
+
+#define ARCH_DMA_MINALIGN      L1_CACHE_BYTES
+
+#define __cacheline_aligned
+#define ____cacheline_aligned
+
+#endif

diff --cc arch/nios2/include/asm/cacheflush.h
Simple merge

diff --cc arch/nios2/mm/cacheflush.c
Simple merge