Blackfin arch: Clean up trace buffer handling, No major functional changes.

Turns on trace earlier, so crashes at kernel start should print out a
trace, making things easier to debug.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 07c1cfd..a86bf654 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -194,6 +194,17 @@
 	/* this give a chance to get printk() working before crash. */
 #endif
 
+	printk(KERN_INFO "Hardware Trace ");
+	if (bfin_read_TBUFCTL() & 0x1 )
+		printk("Active ");
+	else
+		printk("Off ");
+	if (bfin_read_TBUFCTL() & 0x2)
+		printk("and Enabled\n");
+	else
+	printk("and Disabled\n");
+
+
 #if defined(CONFIG_CHR_DEV_FLASH) || defined(CONFIG_BLK_DEV_FLASH)
 	/* we need to initialize the Flashrom device here since we might
 	 * do things with flash early on in the boot
@@ -397,9 +408,6 @@
 	_bfin_swrst = bfin_read_SWRST();
 #endif
 
-	printk(KERN_INFO "Hardware Trace Enabled\n");
-	bfin_write_TBUFCTL(0x03);
-
 	/* Copy atomic sequences to their fixed location, and sanity check that
 	   these locations are the ones that we advertise to userspace.  */
 	memcpy((void *)FIXED_CODE_START, &fixed_code_start,