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mt8173: fix watchdog register setting

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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>
This commit is contained in:
Jimmy Huang
2015-09-04 10:30:57 +08:00
committed by Yidi Lin
parent 0ad1a9b329
commit 2bab3d5273
1 changed files with 3 additions and 2 deletions
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5
plat/mediatek/mt8173/plat_pm.c
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@@ -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);