Corrected comments for machines with oclock0...

4 files changed, 22 insertions, 12 deletions

diff --git a/sys/arch/sparc/conf/GENERIC b/sys/arch/sparc/conf/GENERIC
index da5816771f3..49fedaa9206 100644
--- a/sys/arch/sparc/conf/GENERIC
+++ b/sys/arch/sparc/conf/GENERIC
@@ -1,4 +1,4 @@
-#	$OpenBSD: GENERIC,v 1.22 1998/03/04 12:42:30 johns Exp $
+#	$OpenBSD: GENERIC,v 1.23 1998/03/04 19:24:56 johns Exp $
 # 	$NetBSD: GENERIC,v 1.48 1997/08/23 19:19:01 mjacob Exp $
 
 # Machine architecture; required by config(8)
@@ -58,8 +58,8 @@ power0	at obio0
 #       to use proportionally CPU time handling clock interrupts, 
 #       and if set to ridiculously high values may cause problems.
 #
-# Note: sun4 system will only run the clocks at 100 Hz, other values
-#       are ignored. 
+# Note: 4/100 and 4/200 systems will only run the clocks at 100 Hz, 
+#       other values are ignored. 
 #
 # On sparc, 1000000 modulo HZ must == 0.  If not, a warning is printed 
 #       at boot time, and HZ is reset to 100.
diff --git a/sys/arch/sparc/conf/SUN4 b/sys/arch/sparc/conf/SUN4
index 61fc47fba02..8e0a54ced88 100644
--- a/sys/arch/sparc/conf/SUN4
+++ b/sys/arch/sparc/conf/SUN4
@@ -1,4 +1,4 @@
-#	$OpenBSD: SUN4,v 1.17 1998/03/04 12:42:25 johns Exp $
+#	$OpenBSD: SUN4,v 1.18 1998/03/04 19:24:51 johns Exp $
 # 	$NetBSD: GENERIC,v 1.28.2.1 1996/07/02 23:55:22 jtc Exp $
 
 # Machine architecture; required by config(8)
@@ -31,9 +31,19 @@ obio0	at mainbus0				# sun4 and sun4m
 vmes0	at mainbus0				# sun4
 vmel0	at mainbus0				# sun4
 
-
-# Note: sun4 system will only run the clocks at 100 Hz, other values
-#       are ignored.  The HZ option has no effect for sun4.
+# The system clock (and stat clock) may be set higher than 100 Hz
+# On sun4c and sun4m systems.  This is useful if you have a speedy
+# machine and need high accuracy timing for real-time oriented applications.
+# Note: running the system clock at a higher rate will cause the kernel
+#       to use proportionally CPU time handling clock interrupts,
+#       and if set to ridiculously high values may cause problems.
+#       
+# Note: 4/100 and 4/200 systems will only run the clocks at 100 Hz,
+#       other values are ignored.
+#       
+# On sparc, 1000000 modulo HZ must == 0.  If not, a warning is printed
+#       at boot time, and HZ is reset to 100.
+#option          HZ=1000
 
 # Mostek clock found on 4/300, sun4c, and sun4m systems.
 # The Mostek clock NVRAM is the "eeprom" on sun4/300 systems.
diff --git a/sys/arch/sparc/conf/SUN4C b/sys/arch/sparc/conf/SUN4C
index 7efffbae8cf..5d0669f8e44 100644
--- a/sys/arch/sparc/conf/SUN4C
+++ b/sys/arch/sparc/conf/SUN4C
@@ -72,8 +72,8 @@ auxreg0	at mainbus0
 #       to use proportionally CPU time handling clock interrupts, 
 #       and if set to ridiculously high values may cause problems.
 #
-# Note: sun4 system will only run the clocks at 100 Hz, other values
-#       are ignored.  
+# Note: 4/100 and 4/200 systems will only run the clocks at 100 Hz, 
+#       other values are ignored.
 #
 # On sparc, 1000000 modulo HZ must == 0.  If not, a warning is printed 
 #       at boot time, and HZ is reset to 100.
diff --git a/sys/arch/sparc/conf/SUN4M b/sys/arch/sparc/conf/SUN4M
index 288d1328122..92fd963904e 100644
--- a/sys/arch/sparc/conf/SUN4M
+++ b/sys/arch/sparc/conf/SUN4M
@@ -1,4 +1,4 @@
-#	$OpenBSD: SUN4M,v 1.18 1998/03/04 12:42:28 johns Exp $
+#	$OpenBSD: SUN4M,v 1.19 1998/03/04 19:24:54 johns Exp $
 # 	$NetBSD: GENERIC,v 1.28.2.1 1996/07/02 23:55:22 jtc Exp $
 
 # Machine architecture; required by config(8)
@@ -47,8 +47,8 @@ power0	at obio0
 #       to use proportionally CPU time handling clock interrupts, 
 #       and if set to ridiculously high values may cause problems.
 #
-# Note: sun4 system will only run the clocks at 100 Hz, other values
-#       are ignored.  
+# Note: 4/100 and 4/200 systems will only run the clocks at 100 Hz, 
+#       other values are ignored.
 #
 # On sparc, 1000000 modulo HZ must == 0.  If not, a warning is printed 
 #       at boot time, and HZ is reset to 100.