xref: /src/sys/arch/sun2/conf/RAMDISK

# $NetBSD: RAMDISK,v 1.62 2026/07/18 01:36:16 thorpej Exp $

# RAMDISK: Root/swap on ramdisk
# This kernel is used to:
#	format the disk (not yet implemented)
#	partition the disk (disklabel)
#	install the miniroot in the swap partition

# GENERIC Sun2 (2/120, 2/170, 2/50, ...)
# Supports root on: ie0, sd*, ...

include "arch/sun2/conf/std.sun2"
include "arch/sun2/conf/std.tiny"

#options 	INCLUDE_CONFIG_FILE	# embed config file in kernel binary

# Machines to be supported by this kernel
#options 	FPU_EMULATE

# Needs to be set per system.  i.e change these as you see fit
maxusers	2

# Standard system options
#options 	KTRACE		# system call tracing
#options 	SYSVMSG		# System V message queues
#options 	SYSVSEM		# System V semaphores
#options 	SYSVSHM		# System V shared memory
#options 	INSECURE	# disable kernel security level
#options 	USERCONF	# userconf(4) support
options 	PIPE_SOCKETPAIR	# smaller, but slower pipe(2)
#options 	SYSCTL_INCLUDE_DESCR	# Include sysctl descriptions in kernel

# Which kernel debugger?  Uncomment either this:
#options 	DDB
# ... or these for KGDB (gdb remote target)
#makeoptions	DEBUG="-g"	# debugging symbols for gdb
#options 	KGDB
#options 	KGDB_DEV=0x0C00	# ttya=0C00 ttyb=0C01

# Other debugging options
#options 	DDB_HISTORY_SIZE=100	# enable history editing in DDB
#options 	DEBUG		# kernel debugging code
#options 	DIAGNOSTIC	# extra kernel sanity checking
#options 	PMAP_DEBUG
#options 	SCSIDEBUG
#options 	SCSIVERBOSE		# Verbose SCSI errors

# Compatibility options
#include 	"conf/compat_netbsd10.config"
#options 	COMPAT_SUNOS	# can run SunOS 4.1.1 executables
#options 	COMPAT_AOUT_M68K # support for NetBSD a.out executables
#options 	EXEC_AOUT	# support for a.out executables
#options		COMPAT_BSDPTY	# /dev/[pt]ty?? ptys.

# Filesystem options
file-system	FFS		# Berkeley Fast Filesystem
#file-system	NFS		# Sun NFS client support
#file-system	CD9660		# ISO 9660 + Rock Ridge 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	PROCFS		# /proc
#file-system	UNION		# union file system
#file-system	MFS		# memory-based filesystem
#file-system	PTYFS		# /dev/pts/N support

#options 	NFSSERVER	# nfs server support
#options 	QUOTA		# legacy UFS quotas
#options 	QUOTA2		# new, in-filesystem UFS quotas
#options 	FFS_EI		# FFS Endian Independent support
#options 	NFS_V2_ONLY	# Exclude NFS3 code to save space
options 	FFS_NO_SNAPSHOT	# No FFS snapshot support

# Networking options
options 	INET		# IP protocol stack support
#options 	INET6		# IPV6
#options 	IPSEC		# IP security
#options 	IPSEC_DEBUG	# debug for IP security
#options 	GATEWAY		# IP packet forwarding
#options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG

# Work-around for root on slow servers (insurance...)
#options 	NFS_BOOT_RWSIZE=1024
#options 	NFS_BOOT_BOOTPARAM

# Enable the hooks used for initializing the root memory-disk.
options 	MEMORY_DISK_HOOKS
options 	MEMORY_DISK_IS_ROOT	# force root on memory disk
options 	MEMORY_DISK_SERVER=0	# no userspace memory disk support
options 	MEMORY_DISK_ROOT_SIZE=1200	# size of memory disk, in blocks
options 	MEMORY_DISK_RBFLAGS=RB_SINGLE	# boot in single-user mode

config		netbsd root on ? type ffs

#### Main bus.
mainbus0 at root

#### Bus types.

obio0	at mainbus? 		# all Sun-2
obmem0	at mainbus?		# all Sun-2
mbmem0	at mainbus?		# 2/120, 2/170
mbio0	at mainbus?		# 2/120, 2/170
sun68kvme0	at mainbus?	# 2/50, 2/130, 2/160
vme0	at sun68kvme0		# mi VME attachment

#### Standard system devices.

## The AM9513 clock chip.
clock0	at obio0 addr 0x002800	# 2/120, 2/170
clock0	at obio0 addr 0x7f2800	# 2/50, 2/130, 2/160

## The MM58167 time-of-day chip.
tod0	at obio0 addr 0x003800	# 2/120, 2/170
tod0	at vme0 addr 0x200800	# 2/50, 2/130, 2/160

#### Serial port configuration.

## Zilog 8530 serial chips.  Each has two channels.
## zs0 is ttya and ttyb.  zs1 is the keyboard and mouse.
## zs0 is REQUIRED to use KGDB.
zs0	at obio0 addr 0x002000	# 2/120, 2/170
zs0	at obio0 addr 0x7f2000	# 2/50
zs1	at obmem0 addr 0x780000	# 2/120, 2/170
zs1	at obio0 addr 0x7f1800	# 2/50
#zs2	at mbmem0 addr 0x080800	# 2/120, 2/170 (first sc SCSI)
#zs3	at mbmem0 addr 0x081000	# 2/120, 2/170 (first sc SCSI)
#zs4	at mbmem0 addr 0x084800	# 2/120, 2/170 (second sc SCSI)
#zs5	at mbmem0 addr 0x085000	# 2/120, 2/170 (second sc SCSI)
zstty*	at zs? channel ?	# ttya
kbd0	at zstty?		# keyboard
#ms0	at zstty?		# mouse

#### Disk controllers and disks.

## PAL+logic-based "Sun SCSI 2" Multibus/VME SCSI controller.
## This driver has several flags which may be enabled using
## the "flags" directive.  Valid flags are:
##
## 0x0ff		Set (1<<target) to disable parity checking
## 0x100		Set this bit to disable DMA interrupts (poll)
## 0x200		Set this bit to disable DMA entirely (use PIO)
##
## For example: "flags 0x10f" would disable DMA interrupts,
## and disable parity for targets 0-3

sc0	at mbmem0 addr 0x80000 ipl 2 flags 0xff
sc0	at vme0 addr 0x200000 irq 2 vect 0x40 flags 0xff
sc1	at mbmem0 addr 0x84000 ipl 2 flags 0xff

## NCR5380-based "Sun SCSI 3" VME SCSI controller.
## This driver has several flags which may be enabled by OR'ing
## the values and using the "flags" directive.
## Valid flags are:
##
##	0x01		Use DMA (may be polled)
##	0x02		Use DMA completion interrupts
##	0x04		Allow disconnect/reselect
##
## E.g. the following would enable DMA, interrupts, and reselect:
## si0	at vme0 addr 0x200000 ipl 3 vect 0x40 flags 0x07
##
## By default, DMA is enabled in the driver.

si0	at vme0 addr 0x200000 irq 2 vect 0x40

## These entries find devices on all SCSI busses and assign
## unit numbers dynamically.
scsibus* at sc?
scsibus* at si?
sd*	at scsibus? target ? lun ?		# SCSI disks
st*	at scsibus? target ? lun ?		# SCSI tapes
#cd*	at scsibus? target ? lun ?		# SCSI CD-ROMs
#ch*	at scsibus? target ? lun ?		# SCSI changer devices
#ss*	at scsibus? target ? lun ?		# SCSI scanners
#ses*	at scsibus? target ? lun ?		# SCSI SES/SAF-TE
#uk*	at scsibus? target ? lun ?		# unknown SCSI

# support old SCSI devices that don't understand the INQUIRY command
options 	SCSI_OLD_NOINQUIRY

## Xylogics 450 or 451 Multibus/VME SMD disk controllers and disks.
#xyc0	at mbio0 addr 0xee40 ipl 2
xyc0	at vme0 addr 0xee40 irq 2 vect 0x48
#xyc1	at mbio0 addr 0xee48 ipl 2
xyc1	at vme0 addr 0xee48 irq 2 vect 0x49
xy*	at xyc? drive ?

## Memory-disk device.
pseudo-device	md		

#### Network interfaces.

## Intel Ethernet (onboard, or Multibus/VME)
ie0	at obio0 addr 0x7f0800 ipl 3		# 2/50
ie0	at mbmem0 addr 0x88000 ipl 3
ie1	at mbmem0 addr 0x8c000 ipl 3
## VME: the first [addr,len] pair specifies the device registers;
##	the second pair specifies the on-board memory buffer
ie1	at vme0 addr 0xe88000,0xe00000 len -1,0x40000 irq 3 vect 0x75

## 3Com Ethernet (Multibus only)
ec0	at mbmem0 addr 0xe0000 ipl 3
ec1	at mbmem0 addr 0xe2000 ipl 3
# limit NFS R/W size for poor ec(4) interfaces
options 	NFS_RSIZE=1024,NFS_WSIZE=1024

## Frame buffers.

## Sun "bwtwo" black and white framebuffer.
#bwtwo0	at obmem0 addr 0x700000	# 2/120, 2/170
#bwtwo0	at obio0 addr 0x0	# 2/50

## PROM console driver -- if all else fails
pcons0	at mainbus0			# PROM console

#### Miscellaneous.
pseudo-device	loop			# network loopback
#pseudo-device	bpfilter		# packet filter
#pseudo-device	sl			# CSLIP
#pseudo-device	ppp			# PPP
#pseudo-device	tun			# network tunneling over tty
#pseudo-device	gre			# generic L3 over IP tunnel
#pseudo-device	npf			# NPF packet filter
#pseudo-device	gif			# IPv[46] over IPv[46] tunnel (RFC1933)
#pseudo-device	faith			# IPv[46] tcp relay translation i/f
#pseudo-device	stf			# 6to4 IPv6 over IPv4 encapsulation

pseudo-device	pty			# pseudo-terminals
#pseudo-device	vnd			# paging to files
#pseudo-device	ccd			# concatenated disks
#pseudo-device	raid			# RAIDframe disk driver
#options 	RAID_AUTOCONFIG		# auto-configuration of RAID components
#pseudo-device	fss			# file system snapshot device

no options AIO
no options BUFQ_FCFS
no options RFC2292
no options MQUEUE