Author: emaste
Date: Tue Dec 7 19:18:00 2010
New Revision: 216266
URL: http://svn.freebsd.org/changeset/base/216266
Log:
Add a comment to clarify that some BIOSes may clear the hw watchdog
indicator bit, preventing us from reporting in that case.
X-MFC-with: r215868
Modified:
head/sys/dev/ichwd/ichwd.c
Modified: head/sys/dev/ichwd/ichwd.c
==============================================================================
--- head/sys/dev/ichwd/ichwd.c Tue Dec 7 19:15:33 2010 (r216265)
+++ head/sys/dev/ichwd/ichwd.c Tue Dec 7 19:18:00 2010 (r216266)
@@ -520,8 +520,9 @@ ichwd_attach(device_t dev)
device_get_desc(dev), sc->ich_version);
/*
- * Determine if we are coming up after a watchdog-induced reset.
- * This bit is cleared in ichwd_sts_reset().
+ * Determine if we are coming up after a watchdog-induced reset. Some
+ * BIOSes may clear this bit at bootup, preventing us from reporting
+ * this case on such systems. We clear this bit in ichwd_sts_reset().
*/
if ((ichwd_read_tco_2(sc, TCO2_STS) & TCO_SECOND_TO_STS) != 0)
device_printf(dev,
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