Driver:MIPS

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MIPS

This article and the corresponding MAME driver focus on computers sold by MIPS Computer Systems which use MIPS R2000/R3000 processors and run RISC/os (also known as UMIPS), a port of UNIX System V release 3 with BSD extensions.

Introduction

Status

Hardware

MIPS Computer Systems range[1]
Model Board CPU Clock Slots Disk Package Notes
M/500 R2300 R2000 5MHz VME ESDI
M/800 R2600 R2000 8MHz VME ESDI
M/1000 R2800 R2000 10MHz VME ESDI
M/120-3 R2400 R2000 12.5MHz PC-AT SCSI Deskside aka Intrepid
M/120-5 R2400 R2000 16MHz PC-AT SCSI Deskside
M/180 R2400
M/2000-6 R3200 R3000 20MHz VMEx13 SMD Rack Cabinet
M/2000-8 R3200 R3000 25MHz VMEx13 SMD Rack Cabinet
M/2000-? RB3125 R3000 33MHz
RC2030 I2000 R2000 16MHz SCSI Desktop aka M/12, Jupiter
RS2030 I2000 R2000 16MHz SCSI Desktop aka M/12, Jupiter
RC3230 R3030 R3000 25MHz PC-ATx1 SCSI Desktop aka M/20, Pizazz
RS3230 R3030 R3000 25MHz PC-ATx1 SCSI Desktop aka M/20, Pizazz, Magnum 3000
RC3240 R3000 25MHz PC-ATx4 SCSI Deskside M/120 with CPU-board upgrade
RC3330 R3000 33MHz PC-AT SCSI Desktop
RS3330 R3000 33MHz PC-AT SCSI Desktop
RC3260 R3000 25MHz VMEx7 SCSI Pedestal
RC3360 RB3133 R3000 33MHz VME SCSI Pedestal
RC3370 RB3133
RC6260 R6300 R6000 66MHz VME SCSI Pedestal
RC6280 R6300 R6000 66MHz VMEx6 SMD Data Center
RC6380-100 R6000x1 66MHz VME SMD Data Center
RC6380-200 R6000x2 66MHz VME SMD Data Center
RC6380-400 R6000x4 66MHz VME SMD Data Center

Preparation

Prerequisites

TODO: mame version, riscos files, tap adapter

Network

TODO: set up the bfs and rsh networking tools and environment.

Storage

Use chdman createhd to prepare a new CHD for the operating system installation, and then chdman addmeta to apply a manufacturer string used to identify the drive make/model information that will be returned by the SCSI INQUIRY command. The geometry used below matches one of the entries in the RISC/os 4.51 /etc/disktab.

chdman createhd -o rs2030.chd -chs 1689,15,80
chdman addmeta -i rs2030.chd -t IDNT -vt "CDC     94601           1.00"

The SCSI INQUIRY response data (defined by the IDNT meta-data tag in the CHD) should consist of an 8 character manufacturer name, 16 character model number, and 4 character version number, all left justified and padded with spaces.

Configuration

TODO: mame configuration

Installing RISC/os

Environment

After powering on the system, you should be presented with a firmware monitor prompt. The help command shows the syntax recognized, and additional information may be found in the manual[2].

To complete a network installation, it's important to set the system TCP/IP address to one that matches the external networking environment, using the setenv command. The current environment settings are retained in non-volatile memory, and may be displayed using printenv.

setenv netaddr 192.168.137.2

Format

The format utility allows disks to be partitioned, labelled and formatted. There are two versions of this utility, with format.std being used for all but the Rx2030 system, which has its own dedicated version format.2030.

Launch the applicable format utility using the boot command, being sure to provide the path name matching your BFS or TFTP data path.

boot -f bfs()tree/stand/format.2030

Once format is launched, answer the prompts as follows.

Prompt Response
name of device dksd
controller number 0
unit number 0
device parameters 0
fast file system y
dump device parameters n
modify device parameters n
dump partition table n
modify partition table n
read factory defects n
perform format n
perform scan n
media defect command q
perform mapping n
dump bad sector table n
write new volume header y

Miniroot Installation

Launch the stand-alone shell sash and use it to copy the miniroot filesystem from TFTP to the root partition of the hard disk.

boot -f bfs()sash.2030.fix
cp bfs()root.fs dksd(0,0,1)

This process should take a little over 10 minutes to complete, after which RISC/os may be booted using a kernel from TFTP.

boot -f bfs()unix.i2000_std root=sdc0d0s1

From the miniroot shell prompt, configure the environment to specify a network installation, and start the RISC/os installation utility.

From=en
inst

| hostname of this machine || mame | hostname of install server || xps13 | netmask || 255.255.255.0 | broadcast address || 192.168.137.255 | inet address for mame || 192.168.137.2 | inet address for xps13 || 192.168.137.1 | Ok || y | server || | remote package root || /tree | remote packaging information tree || /tree/umips4.52 | information above correct || y | install kernel to miniroot || n | install all subpackages || n may install all except mh (error in archive) confirm

minimal installation (root, rc2030, usr) should take about 10 minutes

set up /etc/local_hostname and /etc/hosts -> no (tries to rcp /etc/rhosts.equiv)

References

The following are various documents pertaining to MIPS computer systems.

Reference Title Date Links
Reference Title MmmYY [3]