Blackfin arch: convert L2 defines to be the same as the L1 defines

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 15967e7..936c06d 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -131,14 +131,14 @@
 	dma_memcpy(_sdata_b_l1, _l1_lma_start + l1_code_length +
 			l1_data_a_length, l1_data_b_length);
 
-#ifdef L2_LENGTH
-	l2_length = _ebss_l2 - _stext_l2;
-	if (l2_length > L2_LENGTH)
-		panic("L2 SRAM Overflow\n");
+	if (L2_LENGTH != 0) {
+		l2_length = _ebss_l2 - _stext_l2;
+		if (l2_length > L2_LENGTH)
+			panic("L2 SRAM Overflow\n");
 
-	/* Copy _stext_l2 to _edata_l2 to L2 SRAM */
-	dma_memcpy(_stext_l2, _l2_lma_start, l2_length);
-#endif
+		/* Copy _stext_l2 to _edata_l2 to L2 SRAM */
+		dma_memcpy(_stext_l2, _l2_lma_start, l2_length);
+	}
 }
 
 /* add_memory_region to memmap */