From e9b737deb2c30125362d20e24170617476026e94 Mon Sep 17 00:00:00 2001
From: Michal Simek <monstr@monstr.eu>
Date: Mon, 5 Jan 2009 13:29:32 +0100
Subject: microblaze: Add cache flush

---
 lib_microblaze/cache.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

(limited to 'lib_microblaze/cache.c')

diff --git a/lib_microblaze/cache.c b/lib_microblaze/cache.c
index a2f7493b61..4b2e8e3790 100644
--- a/lib_microblaze/cache.c
+++ b/lib_microblaze/cache.c
@@ -26,6 +26,18 @@
 
 void flush_cache (ulong addr, ulong size)
 {
-	/* MicroBlaze have write thruough cache. nothing to do. */
-	return;
+	int i;
+	for (i = 0; i < size; i += 4)
+		asm volatile (
+#ifdef CONFIG_ICACHE
+				"wic	%0, r0;"
+#endif
+				"nop;"
+#ifdef CONFIG_DCACHE
+				"wdc	%0, r0;"
+#endif
+				"nop;"
+				:
+				: "r" (addr + i)
+				: "memory");
 }
-- 
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