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authorWim Van Sebroeck <wim@iguana.be>2008-11-19 19:39:58 +0000
committerWim Van Sebroeck <wim@iguana.be>2008-11-21 08:34:26 +0000
commit7cd5b08be3c489df11b559fef210b81133764ad4 (patch)
treea52a6549b847945f7743ca5272221317aa37efe2 /drivers/watchdog/iTCO_vendor_support.c
parent[WATCHDOG] fix mtx1_wdt compilation failure (diff)
downloadlinux-dev-7cd5b08be3c489df11b559fef210b81133764ad4.tar.xz
linux-dev-7cd5b08be3c489df11b559fef210b81133764ad4.zip
[WATCHDOG] iTCO_wdt : problem with rebooting on new ICH9 based motherboards
Bugzilla #9868: On Intel motherboards with the ICH9 based I/O controllers (Like DP35DP and DG33FB) the iTCO timer counts but it doesn't reboot the system after the counter expires. This patch fixes this by moving the enabling & disabling of the TCO_EN bit in the SMI_EN register into the start and stop code. Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/iTCO_vendor_support.c')
-rw-r--r--drivers/watchdog/iTCO_vendor_support.c31
1 files changed, 4 insertions, 27 deletions
diff --git a/drivers/watchdog/iTCO_vendor_support.c b/drivers/watchdog/iTCO_vendor_support.c
index ca344a85eb95..2474ebca88f6 100644
--- a/drivers/watchdog/iTCO_vendor_support.c
+++ b/drivers/watchdog/iTCO_vendor_support.c
@@ -1,7 +1,7 @@
/*
* intel TCO vendor specific watchdog driver support
*
- * (c) Copyright 2006 Wim Van Sebroeck <wim@iguana.be>.
+ * (c) Copyright 2006-2008 Wim Van Sebroeck <wim@iguana.be>.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -19,8 +19,7 @@
/* Module and version information */
#define DRV_NAME "iTCO_vendor_support"
-#define DRV_VERSION "1.01"
-#define DRV_RELDATE "11-Nov-2006"
+#define DRV_VERSION "1.02"
#define PFX DRV_NAME ": "
/* Includes */
@@ -78,24 +77,6 @@ MODULE_PARM_DESC(vendorsupport, "iTCO vendor specific support mode, default=0 (n
* 20.6 seconds.
*/
-static void supermicro_old_pre_start(unsigned long acpibase)
-{
- unsigned long val32;
-
- val32 = inl(SMI_EN);
- val32 &= 0xffffdfff; /* Turn off SMI clearing watchdog */
- outl(val32, SMI_EN); /* Needed to activate watchdog */
-}
-
-static void supermicro_old_pre_stop(unsigned long acpibase)
-{
- unsigned long val32;
-
- val32 = inl(SMI_EN);
- val32 &= 0x00002000; /* Turn on SMI clearing watchdog */
- outl(val32, SMI_EN); /* Needed to deactivate watchdog */
-}
-
static void supermicro_old_pre_keepalive(unsigned long acpibase)
{
/* Reload TCO Timer (done in iTCO_wdt_keepalive) + */
@@ -247,18 +228,14 @@ static void supermicro_new_pre_set_heartbeat(unsigned int heartbeat)
void iTCO_vendor_pre_start(unsigned long acpibase,
unsigned int heartbeat)
{
- if (vendorsupport == SUPERMICRO_OLD_BOARD)
- supermicro_old_pre_start(acpibase);
- else if (vendorsupport == SUPERMICRO_NEW_BOARD)
+ if (vendorsupport == SUPERMICRO_NEW_BOARD)
supermicro_new_pre_start(heartbeat);
}
EXPORT_SYMBOL(iTCO_vendor_pre_start);
void iTCO_vendor_pre_stop(unsigned long acpibase)
{
- if (vendorsupport == SUPERMICRO_OLD_BOARD)
- supermicro_old_pre_stop(acpibase);
- else if (vendorsupport == SUPERMICRO_NEW_BOARD)
+ if (vendorsupport == SUPERMICRO_NEW_BOARD)
supermicro_new_pre_stop();
}
EXPORT_SYMBOL(iTCO_vendor_pre_stop);