From df4d5ceb17f967f0410d525ce4db5be21a8dc4bc Mon Sep 17 00:00:00 2001
From: Vitja Makarov <vitja.makarov@gmail.com>
Date: Mon, 13 Oct 2008 15:23:56 +0800
Subject: [PATCH] --- yaml --- r: 113789 b: refs/heads/master c:
 58c35bd31f8b577e03d904c214b55b3d91369a85 h: refs/heads/master i:   113787:
 4a5d3ce612060f3ed619f398212ac9ec105e1040 v: v3

---
 [refs]                                     |  2 +-
 trunk/arch/blackfin/include/asm/cplbinit.h | 14 ++++++++++++++
 trunk/arch/blackfin/kernel/setup.c         |  1 +
 3 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index de9f032e2694..1f9a18ed60a0 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3094c981f2d567f0a442687ced24a5340aa10b6c
+refs/heads/master: 58c35bd31f8b577e03d904c214b55b3d91369a85
diff --git a/trunk/arch/blackfin/include/asm/cplbinit.h b/trunk/arch/blackfin/include/asm/cplbinit.h
index 9d23cd1ff7d9..d179b747ff03 100644
--- a/trunk/arch/blackfin/include/asm/cplbinit.h
+++ b/trunk/arch/blackfin/include/asm/cplbinit.h
@@ -92,4 +92,18 @@ extern unsigned long reserved_mem_icache_on;
 
 extern void generate_cplb_tables(void);
 
+static inline int bfin_addr_dcachable(unsigned long addr)
+{
+#ifdef CONFIG_BFIN_DCACHE
+	if (addr < (_ramend - DMA_UNCACHED_REGION))
+		return 1;
+#endif
+
+	if (reserved_mem_dcache_on &&
+		addr >= _ramend && addr < physical_mem_end)
+		return 1;
+
+	return 0;
+}
+
 #endif
diff --git a/trunk/arch/blackfin/kernel/setup.c b/trunk/arch/blackfin/kernel/setup.c
index 7054594831c5..7f35d1046cd8 100644
--- a/trunk/arch/blackfin/kernel/setup.c
+++ b/trunk/arch/blackfin/kernel/setup.c
@@ -42,6 +42,7 @@ EXPORT_SYMBOL(memory_start);
 EXPORT_SYMBOL(memory_end);
 EXPORT_SYMBOL(physical_mem_end);
 EXPORT_SYMBOL(_ramend);
+EXPORT_SYMBOL(reserved_mem_dcache_on);
 
 #ifdef CONFIG_MTD_UCLINUX
 unsigned long memory_mtd_end, memory_mtd_start, mtd_size;