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Systematize (and in many cases, fix) the comments on options COMPAT_NN.

There are quite a few configs that are missing some COMPAT_NN options
in ways that don't make sense; this should probably get cleaned up
too, but for the time being I've not added or removed anything.

#	$NetBSD: GUMSTIX,v 1.84 2014/08/23 20:26:57 dholland Exp $
#
#	GUMSTIX -- Gumstix. Inc. gumstix platforms kernel
#

include 	"arch/evbarm/conf/std.gumstix"

#options 	INCLUDE_CONFIG_FILE	# embed config file in kernel binary

# estimated number of users

maxusers	32

# CPU options

# For XScale systems
options 	CPU_XSCALE_PXA250	# Support the basix/connex motherboards
options 	CPU_XSCALE_PXA270	# Support the verdex motherboards
makeoptions	CPUFLAGS="-mcpu=xscale"

# Architecture options
#options 	XSCALE_CACHE_WRITE_THROUGH
options 	XSCALE_CACHE_READ_WRITE_ALLOCATE

# Gumstix options
options 	GUMSTIX
# if not specified 'busheader=' in args from u-boot, use GXIO_DEFAULT_EXPANSION.
options 	GUMSTIX_NETBSD_ARGS_BUSHEADER
options 	GUMSTIX_NETBSD_ARGS_CONSOLE	# dynamically configure console
						# 'console=lcd' or ffuart,stuart

# Standard system options

options 	RTC_OFFSET=0	# hardware clock is this many mins. west of GMT
#options 	NTP		# NTP phase/frequency locked loop

# File systems

file-system 	FFS		# UFS
file-system 	EXT2FS		# second extended file system (linux)
file-system 	LFS		# log-structured file system
file-system 	MFS		# memory file system
file-system 	NFS		# Network File System client
#file-system 	NTFS		# Windows/NT file system (experimental)
#file-system 	CD9660		# ISO 9660 + Rock Ridge file system
file-system 	MSDOSFS		# MS-DOS file system
file-system 	FDESC		# /dev/fd
file-system 	KERNFS		# /kern
file-system 	NULLFS		# loopback file system
file-system 	OVERLAY		# overlay file system
file-system	PUFFS		# Userspace file systems (e.g. ntfs-3g & sshfs)
file-system 	PROCFS		# /proc
file-system 	UMAPFS		# NULLFS + uid and gid remapping
file-system 	UNION		# union file system
file-system 	CODA		# Coda File System; also needs vcoda (below)
file-system 	SMBFS		# experimental - CIFS; also needs nsmb (below)
file-system 	PTYFS		# /dev/ptm support
file-system 	TMPFS		# Efficient memory file-system
#file-system 	UDF		# experimental - OSTA UDF CD/DVD file-system
#file-system 	HFS		# experimental - Apple HFS+ (read-only)

# File system options
#options 	QUOTA		# legacy UFS quotas
#options 	QUOTA2		# new, in-filesystem UFS quotas
#options 	FFS_EI		# FFS Endian Independent support
options 	WAPBL		# File system journaling support
# Note that UFS_DIRHASH is suspected of causing kernel memory corruption.
# It is not recommended for general use.
#options 	UFS_DIRHASH	# UFS Large Directory Hashing - Experimental
#options 	NFSSERVER	# Network File System server
#options 	FFS_NO_SNAPSHOT	# No FFS snapshot support
#options 	EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
				# immutable) behave as system flags.

# Networking options

#options 	GATEWAY		# packet forwarding
options 	INET		# IP + ICMP + TCP + UDP
options 	INET6		# IPv6
#options 	IPSEC		# IP security
#options 	IPSEC_DEBUG	# debug for IP security
#options 	MROUTING	# IP multicast routing
#options 	PIM		# Protocol Independent Multicast
#options 	NETATALK	# AppleTalk networking
#options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
#options 	PPP_DEFLATE	# Deflate compression support for PPP
#options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
#options 	IPFILTER_LOG	# ipmon(8) log support
#options 	IPFILTER_LOOKUP	# ippool(8) support
options 	IPFILTER_COMPAT # Compat for IP-Filter
#options 	IPFILTER_DEFAULT_BLOCK  # block all packets by default
#options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG

options 	NFS_BOOT_BOOTP
options 	NFS_BOOT_DHCP
#options 	NFS_BOOT_BOOTPARAM

# Compatibility options

options		COMPAT_NETBSD32	# allow running arm (e.g. non-earm) binaries
#options 	COMPAT_09	# NetBSD 0.9,
#options 	COMPAT_10	# NetBSD 1.0,
#options 	COMPAT_11	# NetBSD 1.1,
#options 	COMPAT_12	# NetBSD 1.2,
#options 	COMPAT_13	# NetBSD 1.3,
#options 	COMPAT_14	# NetBSD 1.4,
#options 	COMPAT_15	# NetBSD 1.5,
options 	COMPAT_16	# NetBSD 1.6,
options 	COMPAT_20	# NetBSD 2.0,
options 	COMPAT_30	# NetBSD 3.0,
options 	COMPAT_40	# NetBSD 4.0,
options 	COMPAT_50	# NetBSD 5.0,
options 	COMPAT_60	# NetBSD 6.0, and
options 	COMPAT_70	# NetBSD 7.0 binary compatibility.
#options 	COMPAT_43	# 4.3BSD compatibility.
#options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.

options 	COMPAT_OSSAUDIO	# OSS (Voxware) audio driver compatibility
options 	COMPAT_LINUX	# binary compatibility with Linux
options 	COMPAT_BSDPTY	# /dev/[pt]ty?? ptys.

# Shared memory options

#options 	SYSVMSG		# System V-like message queues
#options 	SYSVSEM		# System V-like semaphores
#options 	SYSVSHM		# System V-like memory sharing

# Device options

#options 	MEMORY_DISK_HOOKS	# boottime setup of ramdisk
#options 	MEMORY_DISK_IS_ROOT	# use memory disk as root
#options 	MEMORY_DISK_DYNAMIC
#options 	MEMORY_DISK_ROOT_SIZE=22528	# Size in blocks

# Miscellaneous kernel options

options 	KTRACE		# system call tracing, a la ktrace(1)
options 	IRQSTATS	# manage IRQ statistics
#options 	KMEMSTATS	# kernel memory statistics
options 	PCMCIAVERBOSE	# verbose PCMCIA configuration messages
#options 	USBVERBOSE	# verbose USB device autoconfig messages
options 	MIIVERBOSE	# Verbose MII autoconfuration messages
#options 	DDB_KEYCODE=0x40
#options 	USERCONF	# userconf(4) support
#options 	PIPE_SOCKETPAIR	# smaller, but slower pipe(2)
#options 	SYSCTL_INCLUDE_DESCR	# Include sysctl descriptions in kernel

# Development and Debugging options

#options 	PERFCTRS	# performance counters
options 	DIAGNOSTIC	# internal consistency checks
options 	DEBUG
#options 	LOCKDEBUG
#options 	PMAP_DEBUG	# Enable pmap_debug_level code
#options 	VERBOSE_INIT_ARM # verbose bootstraping messages
options 	DDB		# in-kernel debugger
#options 	DDB_HISTORY_SIZE=100	# Enable history editing in DDB
#options 	KGDB
#options 	DEBUG_KGDB
makeoptions	DEBUG="-g"	# compile full symbol table
#makeoptions	COPTS="-O2"
makeoptions	COPY_SYMTAB=1
#options 	AUDIO_DEBUG=2

config		netbsd		root on ? type ?
config		netbsd-sm0	root on sm0 type nfs
config		netbsd-smsh0	root on smsh0 type nfs

# The main bus device
mainbus0 at root

# The boot cpu
cpu0	at mainbus?

# integrated peripherals
pxaip0	at mainbus?

pxaintc0 at pxaip?				# interrupt controller
options 	PXAGPIO_HAS_GPION_INTRS

pxagpio0 at pxaip?				# GPIO
pxartc0	at pxaip? addr 0x40900000		# RTC

# cotulla integrated 16550 UARTs
options COM_PXA2X0
com0	at pxaip? addr 0x40100000 intr 22	# Full Function UART
com1	at pxaip? addr 0x40700000 intr 20	# Standard UART (console-st)
com2	at pxaip? addr 0x40200000 intr 21	# Bluetooth UART (old bt or vx)
com3	at pxaip? addr 0x41600000 intr 7	# Hardware UART(console-hw, bt)
options 	FFUARTCONSOLE
#options 	STUARTCONSOLE
#options 	BTUARTCONSOLE
#options 	HWUARTCONSOLE
#options 	KGDB_DEVNAME="\"ffuart\""	# or stuart or btuart or hwuart
#options 	KGDB_DEVRATE=115200

# DMAC support
pxadmac0 at pxaip? addr 0x40000000 intr 25
options 	PXA2X0_DMAC_DMOVER_CONCURRENCY=4 # Enable dmover(9) backend
#options 	PXA2X0_DMAC_FIXED_PRIORITY	# Don't want multiple priority

# AC97 Audio support
pxaacu0	at pxaip? addr 0x40500000 intr 14	# Audiostix, Audiostx2, GPSstix

# Audio support
audio*	at audiobus?

# LCD
lcd0	at pxaip? addr 0x44000000		# consoleLCD-vx,consoleLCD16-vx
wsdisplay* at lcd? console ?

# USB Host/Device Controller
ohci0	at pxaip? addr 0x4c000000 intr 3	# consoleLCD-vx,consoleLCD16-vx
						# ALSO NEEDS pxaudc
pxaudc0	at pxaip? addr 0x40600000

# integrated MMC/SD contoller
pxamci0	at pxaip? addr 0x41100000 size 0x48
sdmmc*	at pxamci?
#options 	PXAMCI_DEBUG
#options 	SDMMC_DEBUG
#options 	SDMMC_DUMP_CSD

ld*	at sdmmc?

# gumstix device support
gxio0	at pxaip?
options 	GXIO_BLUETOOTH_ON_HWUART	# Bluetooth module on HWUART
#options 	GXIO_DEFAULT_EXPANSION="\"netCF\""

# gumstix expantion boards

# SMC 91C111
sm0	at gxio? addr 0x04000300 gpirq ?
#sm0	at gxio? addr 0x04000300 gpirq 36	# etherstix,netMMC,netCF,netDUO
#sm0	at gxio? addr 0x04000300 gpirq 99	# netCF-vx
sm1	at gxio? addr 0x08000300 gpirq 27	# netDUO(2nd NIC)

# SMSC LAN9117
smsh0	at gxio? addr 0x04000300 gpirq 99	# netmicroSD-vx, netpro-vx

# Inter-Integrated Circuit controller
gxiic0	at pxaip? addr 0x40300000
iic*	at gxiic?
#dsrtc*	at iic? addr 0x68		# Can mount DS1307 at console, breakout

# integrated PCMCIA/CF controller
pxapcic0 at pxaip? addr 0x20000000		# cfstix, netCF

# PCMCIA bus support
pcmcia*	at pxapcic?

# Marvell 88W8385
malo*	at pcmcia? function ?		# wifistix, netwifimicrosd, netpro-vx


# PCMCIA serial interfaces
com*	at pcmcia? function ?		# Modems and serial cards

# PCMCIA IDE controllers
wdc*	at pcmcia? function ?
atabus*	at wdc? channel ?
wd*	at atabus? drive ? flags 0x0000

# PCMCIA network interfaces
ne*	at pcmcia? function ?		# NE2000-compatible Ethernet
wi*	at pcmcia? function ?		# Lucent/Intersil WaveLAN/IEEE (802.11)
#xirc*	at pcmcia? function ?		# Xircom CreditCard Ethernet
#xi*	at xirc?

# MII/PHY support
#acphy*	at mii? phy ?			# AMD/Altima AC101 PHYs
sqphy*	at mii? phy ?			# Seeq 80220/80221/80223 PHYs
ukphy*	at mii? phy ?			# smsh(4) internal PHY

# PCMCIA USB controllers
#slhci*	at pcmcia? function ?		# ScanLogic SL811HS

# USB bus support
usb*	at ohci?
#usb*	at slhci?

# USB Hubs
uhub*	at usb?
uhub*	at uhub? port ?

# USB HID device
uhidev* at uhub? port ? configuration ? interface ?

# USB Mice
ums*	at uhidev? reportid ?
wsmouse* at ums? mux 0

# USB Keyboards
ukbd*	at uhidev? reportid ?
wskbd*	at ukbd? console ? mux 1

# USB LCDs and USB-VGA adaptors
udl*	at uhub? port ?			# DisplayLink DL-1x0/1x5
wsdisplay* at udl?

# USB Mass Storage
umass*	at uhub? port ? configuration ? interface ?
#wd*	at umass?

# SCSI bus support
scsibus* at scsi?

# SCSI devices
sd*	at scsibus? target ? lun ?	# SCSI disk drives

# Bluetooth Controller and Device support

# Bluetooth PCMCIA Controllers
#btbc*	at pcmcia? function ?		# AnyCom BlueCard LSE041/039/139

# Bluetooth USB Controllers
#ubt*	at uhub? port ?
#aubtfwl* at uhub? port ?

# Bluetooth Device Hub
bthub*	at bcsp?
#bthub*	at btbc?
bthub*	at btuart?
#bthub*	at ubt?

# Bluetooth HID support
bthidev* at bthub?

# Bluetooth Mouse
btms*	at bthidev? reportid ?
wsmouse* at btms? mux 0

# Bluetooth Keyboard
btkbd*	at bthidev? reportid ?
wskbd*	at btkbd? console ? mux 1

# Bluetooth Apple Magic Mouse
btmagic* at bthub?
wsmouse* at btmagic? mux 0

# Bluetooth Audio support
btsco*	at bthub?

# Pseudo-Devices

# disk/mass storage pseudo-devices
#pseudo-device	bio			# RAID control device driver
#pseudo-device	ccd			# concatenated/striped disk devices
pseudo-device	cgd			# cryptographic disk devices
#pseudo-device	raid			# RAIDframe disk driver
#options 	RAID_AUTOCONFIG		# auto-configuration of RAID components
# Options to enable various other RAIDframe RAID types.
#options 	RF_INCLUDE_EVENODD=1
#options 	RF_INCLUDE_RAID5_RS=1
#options 	RF_INCLUDE_PARITYLOGGING=1
#options 	RF_INCLUDE_CHAINDECLUSTER=1
#options 	RF_INCLUDE_INTERDECLUSTER=1
#options 	RF_INCLUDE_PARITY_DECLUSTERING=1
#options 	RF_INCLUDE_PARITY_DECLUSTERING_DS=1
#pseudo-device	fss			# file system snapshot device

#pseudo-device	md			# memory disk device (ramdisk)
pseudo-device	vnd			# disk-like interface to files
options 	VND_COMPRESSION		# compressed vnd(4)
pseudo-device	putter			# for puffs and pud

# network pseudo-devices
pseudo-device	bpfilter		# Berkeley packet filter
#pseudo-device	carp			# Common Address Redundancy Protocol
pseudo-device	ipfilter		# IP filter (firewall) and NAT
pseudo-device	loop			# network loopback
pseudo-device	ppp			# Point-to-Point Protocol
#pseudo-device	pppoe			# PPP over Ethernet (RFC 2516)
#options 	PPPOE_SERVER		# Enable PPPoE server via link0
#pseudo-device	sl			# Serial Line IP
#pseudo-device	strip			# Starmode Radio IP (Metricom)
#pseudo-device	irframetty		# IrDA frame line discipline
pseudo-device	tap			# virtual Ethernet
#pseudo-device	tun			# network tunneling over tty
#pseudo-device	gre			# generic L3 over IP tunnel
#pseudo-device	gif			# IPv[46] over IPv[46] tunnel (RFC 1933)
#pseudo-device	faith			# IPv[46] TCP relay translation i/f
#pseudo-device	stf			# 6to4 IPv6 over IPv4 encapsulation
#pseudo-device	vlan			# IEEE 802.1q encapsulation
pseudo-device	bridge			# simple inter-network bridging
#options	BRIDGE_IPF		# bridge uses IP/IPv6 pfil hooks too
#pseudo-device	agr			# IEEE 802.3ad link aggregation
#pseudo-device	pf			# PF packet filter
#pseudo-device	pflog			# PF log if

# miscellaneous pseudo-devices
pseudo-device	pty			# pseudo-terminals
#pseudo-device	sequencer		# MIDI sequencer
options 	RND_COM
pseudo-device	clockctl		# user control of clock subsystem
pseudo-device	ksyms			# /dev/ksyms
pseudo-device	bcsp			# BlueCore Serial Protocol
pseudo-device	btuart			# Bluetooth HCI UART (H4)
					# connect with Ericsson Bluetooth Module
					#  or Infineon SingleStone (PBA31307)
					#  or Infineon UniStone (PBA31308)

# a pseudo device needed for Coda	# also needs CODA (above)
pseudo-device	vcoda			# coda minicache <-> venus comm.

# a pseudo device needed for SMBFS
pseudo-device	nsmb			# experimental - SMB requester

# wscons pseudo-devices
pseudo-device	wsmux			# mouse & keyboard multiplexor
#pseudo-device	wsfont

# data mover pseudo-devices
pseudo-device	swdmover		# software dmover(9) back-end
pseudo-device	dmoverio		# /dev/dmover dmover(9) interface

# userland interface to drivers, including autoconf and properties retrieval
pseudo-device	drvctl

#options 	FILEASSOC		# fileassoc(9) - required for Veriexec

# Veriexec
#pseudo-device	veriexec
#
# Uncomment the fingerprint methods below that are desired. Note that
# removing fingerprint methods will have almost no impact on the kernel
# code size.
#
#options VERIFIED_EXEC_FP_RMD160
#options VERIFIED_EXEC_FP_SHA256
#options VERIFIED_EXEC_FP_SHA384
#options VERIFIED_EXEC_FP_SHA512
#options VERIFIED_EXEC_FP_SHA1
#options VERIFIED_EXEC_FP_MD5

#options 	PAX_MPROTECT=0		# PaX mprotect(2) restrictions
#options 	PAX_ASLR=0		# PaX Address Space Layout Randomization