From: Mike Frysinger <vapier@gentoo.org>
Date: Tue, 19 May 2009 12:58:13 +0000 (+0000)
Subject: Blackfin: fix detection of cached L2 SRAM
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f339f46b05cfe289024b15a0525c8b61f1426a88;p=linux-beck.git

Blackfin: fix detection of cached L2 SRAM

Make sure our bfin_addr_dcachable() function flags cached L2 SRAM properly
else memory easily goes unflushed when working with DMA.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---

diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h
index d7726ab486ff..94697f0f6f40 100644
--- a/arch/blackfin/include/asm/cacheflush.h
+++ b/arch/blackfin/include/asm/cacheflush.h
@@ -108,6 +108,11 @@ static inline int bfin_addr_dcachable(unsigned long addr)
 		addr >= _ramend && addr < physical_mem_end)
 		return 1;
 
+#ifndef CONFIG_BFIN_L2_NOT_CACHED
+	if (addr >= L2_START && addr < L2_START + L2_LENGTH)
+		return 1;
+#endif
+
 	return 0;
 }