[U-Boot] [PATCH 1/2] mips: ath79: ar933x: Avoid warning with gcc5

[Wills Wang]

gcc 5.3 report a warning: 'upper' and 'lower' may be used
uninitialized in this function [-Wmaybe-uninitialized].
compiler might need explicit initializer.

Signed-off-by: Wills Wang <wills.wang at live.com>
---

 arch/mips/mach-ath79/ar933x/ddr.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/mips/mach-ath79/ar933x/ddr.c b/arch/mips/mach-ath79/ar933x/ddr.c
index 91452bc..7f20d34 100644
--- a/arch/mips/mach-ath79/ar933x/ddr.c
+++ b/arch/mips/mach-ath79/ar933x/ddr.c
@@ -268,6 +268,8 @@ void ddr_tap_tuning(void)
 	dir = 1;
 	tap = readl(regs + AR71XX_DDR_REG_TAP_CTRL0);
 	val = tap;
+	upper = tap;
+	lower = tap;
 	while (!done) {
 		err = 0;
 
-- 
1.9.1