From 2bab3d527375eee8eb060e8b1ab2c10141e88c06 Mon Sep 17 00:00:00 2001
From: Jimmy Huang <jimmy.huang@mediatek.com>
Date: Fri, 4 Sep 2015 10:30:57 +0800
Subject: [PATCH] mt8173: fix watchdog register setting
This patch corrects the watchdog register setting. To update watchdog
register, the watchdog mode key must be set to make the register
configurable.
Change-Id: I9ca98ea4012f7f220b116013461030de4638ce0b
Signed-off-by: Jimmy Huang <jimmy.huang@mediatek.com>
---
plat/mediatek/mt8173/plat_pm.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/plat/mediatek/mt8173/plat_pm.c b/plat/mediatek/mt8173/plat_pm.c
index e663b94f4..a84d03103 100644
--- a/plat/mediatek/mt8173/plat_pm.c
+++ b/plat/mediatek/mt8173/plat_pm.c
@@ -497,8 +497,9 @@ static void __dead2 plat_system_reset(void)
/* Write the System Configuration Control Register */
INFO("MTK System Reset\n");
- mmio_clrbits_32(MTK_WDT_BASE,
- (MTK_WDT_MODE_DUAL_MODE | MTK_WDT_MODE_IRQ));
+ mmio_clrsetbits_32(MTK_WDT_BASE,
+ (MTK_WDT_MODE_DUAL_MODE | MTK_WDT_MODE_IRQ),
+ MTK_WDT_MODE_KEY);
mmio_setbits_32(MTK_WDT_BASE, (MTK_WDT_MODE_KEY | MTK_WDT_MODE_EXTEN));
mmio_setbits_32(MTK_WDT_SWRST, MTK_WDT_SWRST_KEY);
--
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