OpenBSD/landisk

OpenBSD/landisk runs on machines related to the IO-DATA USL-5P, using a Hitachi/Renesas SH-4 CPU.
This platform comes in a variety of models:

IO-DATA USL-5P, using CF storage (Japan; as shown)
IO-DATA HDL-U, HDL-AV, HDL-W and HDLM-U series (Japan)
SuperTank LAN Tank (SOTO-HDLWU) (Japan)
IO-DATA UHDL-160U and UHDL-300U (May be found in USA)
Plextor PX-EH16L, PX-EH25L and PX-EH40L

Note: The "Giga-landisk" and HDL-F machines are ARM-based (both Intel XScale & Marvell) some of which are supported by the armish architecture.

The current port maintainers are Dale Rahn (drahn@openbsd.org), Miod Vallat (miod@openbsd.org) and Michael Shalayeff (mickey@openbsd.org).

History of the port
Current status
Project list
Supported hardware
Getting and installing OpenBSD/landisk
Serial cable connection

History:

OpenBSD/landisk is the 1st OpenBSD port to a Hitachi/Renesas SH-4 based machine. It is hoped that other SH-4 based machines will show up which are interesting enough for our user and development community, but the SH-4 processor is normally used only in true embedded products.

Current status:

Development is currently pretty active.

Currently there is a snapshot that can install the architecture (using a miniroot), and which is self-hosting. There are still many bugs to fix.

Projects (in no particular order):

Finish shared library support.
Squelch remaining compiler optimization bugs.

Supported Hardware:

HITACHI SH4 SH7751R processor.
On-board re(4)100Mbit ethernet
On-board CF socket supported as a wd(4) hard drive.
On-board pciide(4) IDE drive.
A serial port console at 9600 baud (lacking hardware flow control).
On-board ehci(4) and ohci(4) USB.
power(4) button and some LEDs.
Most standard USB devices are supported.

Getting and installing OpenBSD/landisk

The latest supported OpenBSD/landisk release is OpenBSD 4.1. Here are the OpenBSD/landisk 4.1 installation instructions .

Snapshots are made available from time to time, in this location as well as in a few mirrors. Here are the OpenBSD/landisk snapshot installation instructions as well.

Serial cable connection

All of these machines require a special serial cable which does voltage conversion, and can hopefully be purchased along with the card. This cable normally contains a little max232 or similar chip which converts from the 3.3V signals to +/-12V. The IO-DATA cable has pins which can grip the inside of the holes. Or you can attempt to build your own using some Japanese instructions.

The IO-DATA cable converts from a DB9 connector to a 5-pin header (3.3V Tx Rx GND NC). Note that the Rx and Tx pins on the board are swapped compared to the ARM-based machines made by IO-DATA. All the board models have a 5-pin connector (called CN7) which the cable can plug into -- except for the USL-5P which has a 4-pin header (thus requiring removal of the spare pin).

A USL-5P is shown with a modified IO-DATA cable. In this case the cable has been shortened significantly and the DB9 connector is glued into a slot carefully cut into the plastic between the ethernet and a USB port.

www@openbsd.org
$OpenBSD: landisk.html,v 1.25 2007/05/01 18:10:19 miod Exp $