The wiki is being retired!

Documentation is now handled by the same processes we use for code: Add something to the Documentation/ directory in the coreboot repo, and it will be rendered to https://doc.coreboot.org/. Contributions welcome!

This is the IGEL WinNET III thin client, which uses the mainboard ASI MB-5BLMP. ASI (Aquarius Systems, Inc.) seems to be Bcom now.

There's a small manual (PDF) for the MB-5BLMP.

Hardware

The IGEL WinNET III thin client.	The backpanel.
The PCB.

CPU: Cyrix MediaGX™ 233 MHz (a.k.a. Cyrix/NSC/AMD Geode GX1)
Chipset: Cyrix CS5530
RAM:
- 1x S0-DIMM socket (144 pins): 32 MB
- 1x DIMM socket (168 pins): not populated per default
1x DIP32 BIOS chip
1x DIP32 Disk on Chip (DoC)
1x IDE (40 pin connector for ATAPI 3.5" IDE hard drives or CDROM drives)
VGA: integrated in the chipset, max. resolution 1280x1024 (8 bpp)
Super I/O chip: NSC PC87351
Connectors:
- 1x PS/2 keyboard
- 1x PS/2 mouse
- 2x serial port (COM1, COM2)
- 1x Parallel port
- 2x USB (OHCI)
- Audio: Line-in, line-out, Mic
Internal expansion slots:
- 1x ISA
- 1x PCI (shared)
Ethernet: Realtek RTL8138B (10/100 Mbit), might support Boot ROM and Wake-on-LAN
Internal power supply (25 W or 60 W, 100~240 VAC, 50/60 Hz)

Status

LinuxBIOS + FILO can boot a Linux kernel (e.g. 2.6.20) just fine.

However, as the PIRQ table in LinuxBIOS is not yet fixed (this is on my TODO list), you have to use the Linux kernel parameter irqpoll at the moment.

Building a payload

Building a coreboot image

See the Build HOWTO for information on how to build coreboot for this board.

Flashing the image

$ flashrom -vw linuxbios.rom

Notes

...

Serial console

...

FILO Config file

USE_GRUB = 1
MENULST_FILE = "hda1:/boot/grub/menu.lst"
MENULST_TIMEOUT = 0
AUTOBOOT_FILE = "hda1:/vmlinuz initrd=/initrd.img root=/dev/hda1 console=tty0 console=ttyS0,115200"
AUTOBOOT_DELAY = 0
IDE_DISK = 1
USB_DISK = 0
VGA_CONSOLE = 1
PC_KEYBOARD = 1
SERIAL_CONSOLE = 1
SERIAL_IOBASE = 0x3f8
FSYS_EXT2FS = 1
FSYS_FAT = 0
FSYS_REISERFS = 0
FSYS_ISO9660 = 1
ELTORITO = 1
SUPPORT_PCI = 1
PCI_BRUTE_SCAN = 1
LINUX_LOADER = 1

/boot/grub/menu.lst

kernel /vmlinuz root=/dev/hda1 ro console=tty0 console=ttyS0,115200

/etc/inittab

T0:23:respawn:/sbin/getty -L ttyS0 115200 vt100

Detailed System Information

The following information was gathered on a running Linux system, booted via the proprietary BIOS:

lspci -nn

00:00.0 Host bridge [0600]: Cyrix Corporation PCI Master [1078:0001]
00:0f.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ [10ec:8139] (rev 10)
00:12.0 ISA bridge [0601]: Cyrix Corporation 5530 Legacy [Kahlua] [1078:0100]
00:12.1 Bridge [0680]: Cyrix Corporation 5530 SMI [Kahlua] [1078:0101]
00:12.2 IDE interface [0101]: Cyrix Corporation 5530 IDE [Kahlua] [1078:0102]
00:12.3 Multimedia audio controller [0401]: Cyrix Corporation 5530 Audio [Kahlua] [1078:0103]
00:12.4 VGA compatible controller [0300]: Cyrix Corporation 5530 Video [Kahlua] [1078:0104]
00:13.0 USB Controller [0c03]: Compaq Computer Corporation ZFMicro Chipset USB [0e11:a0f8] (rev 06)

lspci -tv

-[0000:00]-+-00.0  Cyrix Corporation PCI Master
           +-0f.0  Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+
           +-12.0  Cyrix Corporation 5530 Legacy [Kahlua]
           +-12.1  Cyrix Corporation 5530 SMI [Kahlua]
           +-12.2  Cyrix Corporation 5530 IDE [Kahlua]
           +-12.3  Cyrix Corporation 5530 Audio [Kahlua]
           +-12.4  Cyrix Corporation 5530 Video [Kahlua]
           \-13.0  Compaq Computer Corporation ZFMicro Chipset USB

/proc/cpuinfo

processor       : 0
vendor_id       : CyrixInstead
cpu family      : 5
model           : 7
model name      : Cyrix MediaGXtm MMXtm Enhanced
stepping        : 4
cpu MHz         : 233.884
cache size      : 16 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu tsc msr cx8 cmov mmx cxmmx up
bogomips        : 476.30

This work is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or any later version. This work is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

Board:asi/mb 5blmp