linux-kernel - [PATCH/RESEND] MIPS: Fix sibyte watchdog initialization

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Date:	Mon, 19 Apr 2010 08:37:11 -0700
From:	Guenter Roeck <guenter.roeck@...csson.com>
To:	wim@...ana.be, alan@...hat.com, andy.sharp@...tor.com,
	linux-kernel@...r.kernel.org
CC:	linux-mips@...r.kernel.org, ralf@...ux-mips.org,
	Guenter Roeck <guenter.roeck@...csson.com>
Subject: [PATCH/RESEND] MIPS: Fix sibyte watchdog initialization

Watchdog configuration register and timer count register were interchanged,
causing wrong values to be written into both registers.
This caused watchdog triggered resets even if the watchdog was reset in time.

Signed-off-by: Guenter Roeck <guenter.roeck@...csson.com>
---
Resend:
    Widening the audience.
    Please let me know if there are any problems with this patch.

 drivers/watchdog/sb_wdog.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/watchdog/sb_wdog.c b/drivers/watchdog/sb_wdog.c
index 9748eed..1407cfa 100644
--- a/drivers/watchdog/sb_wdog.c
+++ b/drivers/watchdog/sb_wdog.c
@@ -67,8 +67,8 @@ static DEFINE_SPINLOCK(sbwd_lock);
 void sbwdog_set(char __iomem *wdog, unsigned long t)
 {
 	spin_lock(&sbwd_lock);
-	__raw_writeb(0, wdog - 0x10);
-	__raw_writeq(t & 0x7fffffUL, wdog);
+	__raw_writeb(0, wdog);
+	__raw_writeq(t & 0x7fffffUL, wdog - 0x10);
 	spin_unlock(&sbwd_lock);
 }
 
-- 
1.7.0.87.g0901d

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