Index: head/share/man/man4/fdc.4
===================================================================
--- head/share/man/man4/fdc.4
+++ head/share/man/man4/fdc.4
@@ -27,7 +27,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd May 11, 2006
+.Dd April 7, 2017
 .Dt FDC 4
 .Os
 .Sh NAME
@@ -281,14 +281,6 @@
 pointer to
 .Vt int .
 Drive options will always be cleared when closing the descriptor.
-.It Dv FD_DEBUG
-Set the driver debug level.
-Third argument is a pointer to
-.Vt int ,
-level 0 turns off all debugging.
-Only applicable if the driver has
-been configured with
-.Cd "options FDC_DEBUG" .
 .It Dv FD_CLRERR
 Clear the internal low-level error counter.
 Normally, controller-level
Index: head/sys/conf/NOTES
===================================================================
--- head/sys/conf/NOTES
+++ head/sys/conf/NOTES
@@ -1812,11 +1812,6 @@
 hint.fdc.0.irq="6"
 hint.fdc.0.drq="2"
 #
-# FDC_DEBUG enables floppy debugging.  Since the debug output is huge, you
-# gotta turn it actually on by setting the variable fd_debug with DDB,
-# however.
-options 	FDC_DEBUG
-#
 # Activate this line if you happen to have an Insight floppy tape.
 # Probing them proved to be dangerous for people with floppy disks only,
 # so it's "hidden" behind a flag:
Index: head/sys/conf/options
===================================================================
--- head/sys/conf/options
+++ head/sys/conf/options
@@ -691,7 +691,6 @@
 
 ROOTDEVNAME
 
-FDC_DEBUG		opt_fdc.h
 PCFCLOCK_VERBOSE	opt_pcfclock.h
 PCFCLOCK_MAX_RETRIES	opt_pcfclock.h
 
Index: head/sys/modules/fdc/Makefile
===================================================================
--- head/sys/modules/fdc/Makefile
+++ head/sys/modules/fdc/Makefile
@@ -11,10 +11,4 @@
 SRCS+=	opt_fdc.h bus_if.h card_if.h device_if.h \
 	isa_if.h pccarddevs.h
 
-FDC_DEBUG?=	0	# 0/1
-
-.if ${FDC_DEBUG} > 0
-	echo "#define FDC_DEBUG 1" >> ${.TARGET}
-.endif
-
 .include <bsd.kmod.mk>
Index: head/sys/sparc64/conf/NOTES
===================================================================
--- head/sys/sparc64/conf/NOTES
+++ head/sys/sparc64/conf/NOTES
@@ -128,7 +128,6 @@
 #####################################################################
 # Options we don't want to deal with
 
-nooption	FDC_DEBUG
 nooption	COMPAT_FREEBSD4
 nooption	SC_RENDER_DEBUG
 nooption	SC_DEBUG_LEVEL
Index: head/usr.sbin/fdcontrol/fdcontrol.8
===================================================================
--- head/usr.sbin/fdcontrol/fdcontrol.8
+++ head/usr.sbin/fdcontrol/fdcontrol.8
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd December 25, 2001
+.Dd April 7, 2017
 .Dt FDCONTROL 8
 .Os
 .Sh NAME
@@ -94,30 +94,6 @@
 some more text will be returned, including the total capacity of the
 density settings in kilobytes.
 .Ss Debug Control
-If the
-.Xr fdc 4
-driver was configured with the
-.Dv FDC_DEBUG
-option, by default, device debugging information is still disabled
-since it could produce huge amounts of kernel messages.
-It needs to
-be turned on using
-.Nm
-together with
-.Dq Fl d Li 1 ,
-usually immediately before starting an operation on the respective
-device the debug information is wanted for, and later turned off again
-using
-.Dq Fl d Li 0 .
-Note that debugging levels are a driver's global option that will
-affect any drives and controllers using the
-.Xr fdc 4
-driver, regardless which
-.Ar device
-was specified on the
-.Nm
-command line.
-.Ss Density Control
 The
 .Xr fdc 4
 control utilities support two different options how to specify device