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26 November 2022, 15:45:29 UTC
Revision 0d098587cec70048336a3809bcde8044c7e9aa08 authored by Wim Van Sebroeck on 26 December 2011, 14:23:51 UTC, committed by Wim Van Sebroeck on 27 December 2011, 19:35:59 UTC 
watchdog: iTCO_wdt.c - problems with newer hardware due to SMI clearing (part 2)
 
Redhat Bugzilla: Bug 727875 - TCO_EN bit is disabled by TCO driver

The previous patch breaks reset watchdog behaviour on the older hardware.
It is therefor better to make sure that the behaviour for older hardware (<=ICH5 or
6300ESB) is preserved and that the behaviour for newer hardware is changed.
We therefor use the iTCO_version to see if we need the clearing of the SMI_TCO_EN
bit in the SMI_EN register.

So the new behaviour becomes:
turn_SMI_watchdog_clear_off=0 -> Do not turn off SMI clearing watchdog.
turn_SMI_watchdog_clear_off=1 -> Turn off SMI clearing watchdog when iTCO_version=1
				 (ICHO till ICH5 + 6300ESB only)
turn_SMI_watchdog_clear_off=2 -> Turn off SMI clearing watchdog.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
1 parent e67d668
History
Tip revision: 0d098587cec70048336a3809bcde8044c7e9aa08 authored by Wim Van Sebroeck on 26 December 2011, 14:23:51 UTC
watchdog: iTCO_wdt.c - problems with newer hardware due to SMI clearing (part 2)
Tip revision: 0d09858
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.gitignore -rw-r--r-- 1014 bytes
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