Blackfin: time: replace magic numbers with defines

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/kernel/time.c b/arch/blackfin/kernel/time.c
index 8d73724..ceb2bf6 100644
--- a/arch/blackfin/kernel/time.c
+++ b/arch/blackfin/kernel/time.c
@@ -51,7 +51,7 @@
 	u32 tcount;
 
 	/* power up the timer, but don't enable it just yet */
-	bfin_write_TCNTL(1);
+	bfin_write_TCNTL(TMPWR);
 	CSYNC();
 
 	/* the TSCALE prescaler counter */
@@ -64,7 +64,7 @@
 	/* now enable the timer */
 	CSYNC();
 
-	bfin_write_TCNTL(7);
+	bfin_write_TCNTL(TAUTORLD | TMREN | TMPWR);
 }
 #endif