From: Wills Wang <wills.wang@live.com>
Date: Sun, 22 May 2016 03:59:49 +0000 (+0800)
Subject: mips: ath79: ar933x: Avoid warning with gcc5
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=4349b55b9953d0bb591f13ca9985edf591348ced;p=project%2Fbcm63xx%2Fu-boot.git

mips: ath79: ar933x: Avoid warning with gcc5

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@live.com>
---

diff --git a/arch/mips/mach-ath79/ar933x/ddr.c b/arch/mips/mach-ath79/ar933x/ddr.c
index 91452bcc53..7f20d34885 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;