From 8ff972c6e99938f1a033e5500dccc9a37ce3406f Mon Sep 17 00:00:00 2001
From: Michal Simek <monstr@monstr.eu>
Date: Fri, 16 Apr 2010 12:56:33 +0200
Subject: [PATCH] microblaze: Consolidate cache code

Merge cpu and lib cache code.
Flush cache before disabling.

Signed-off-by: Michal Simek <monstr@monstr.eu>
---
 arch/microblaze/cpu/cache.c  | 28 +++++++++++++++++++++++
 arch/microblaze/lib/Makefile |  1 -
 arch/microblaze/lib/cache.c  | 43 ------------------------------------
 3 files changed, 28 insertions(+), 44 deletions(-)
 delete mode 100644 arch/microblaze/lib/cache.c

diff --git a/arch/microblaze/cpu/cache.c b/arch/microblaze/cpu/cache.c
index 3b7c4d4f7f..d258a69382 100644
--- a/arch/microblaze/cpu/cache.c
+++ b/arch/microblaze/cpu/cache.c
@@ -50,6 +50,8 @@ void	icache_enable (void) {
 }
 
 void	icache_disable(void) {
+	/* we are not generate ICACHE size -> flush whole cache */
+	flush_cache(0, 32768);
 	MSRCLR(0x20);
 }
 
@@ -58,5 +60,31 @@ void	dcache_enable (void) {
 }
 
 void	dcache_disable(void) {
+#ifdef XILINX_USE_DCACHE
+#ifdef XILINX_DCACHE_BYTE_SIZE
+	flush_cache(0, XILINX_DCACHE_BYTE_SIZE);
+#else
+#warning please rebuild BSPs and update configuration
+	flush_cache(0, 32768);
+#endif
+#endif
 	MSRCLR(0x80);
 }
+
+void flush_cache (ulong addr, ulong size)
+{
+	int i;
+	for (i = 0; i < size; i += 4)
+		asm volatile (
+#ifdef CONFIG_ICACHE
+				"wic	%0, r0;"
+#endif
+				"nop;"
+#ifdef CONFIG_DCACHE
+				"wdc.flush	%0, r0;"
+#endif
+				"nop;"
+				:
+				: "r" (addr + i)
+				: "memory");
+}
diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile
index 9b0f296e3f..817643795e 100644
--- a/arch/microblaze/lib/Makefile
+++ b/arch/microblaze/lib/Makefile
@@ -29,7 +29,6 @@ SOBJS-y	+=
 
 COBJS-y	+= board.o
 COBJS-y	+= bootm.o
-COBJS-y	+= cache.o
 COBJS-y	+= time.o
 
 SRCS	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
diff --git a/arch/microblaze/lib/cache.c b/arch/microblaze/lib/cache.c
deleted file mode 100644
index 9b6b60f73c..0000000000
--- a/arch/microblaze/lib/cache.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * (C) Copyright 2004 Atmark Techno, Inc.
- *
- * Yasushi SHOJI <yashi@atmark-techno.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-
-void flush_cache (ulong addr, ulong size)
-{
-	int i;
-	for (i = 0; i < size; i += 4)
-		asm volatile (
-#ifdef CONFIG_ICACHE
-				"wic	%0, r0;"
-#endif
-				"nop;"
-#ifdef CONFIG_DCACHE
-				"wdc.flush	%0, r0;"
-#endif
-				"nop;"
-				:
-				: "r" (addr + i)
-				: "memory");
-}
-- 
2.39.2