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 d7726ab..94697f0 100644 (file)
--- 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;
 }