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Revision as of 07:28, 1 July 2015 by Cseait (talk | contribs) (Fixed this up a bit.)
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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 Contributions welcome!

This page describes how to use Coreboot on the Sun Ultra 40 M2 mainboard. It is maintained by jakllsch and seait.


Device/functionality Status Comments
CPU works WIP Dual-core K8 CPUs only running at 1Ghz. Possible issue booting Linux when setting FID/VID.
L1 cache enabled Untested
L2 cache enabled Untested
L3 cache enabled Untested Untested
Multiple CPU support OK
Multi-core support Unknown
Hardware virtualization Untested
DDR2 WIP Possible issues addressing memory above 4GB. ECC needs tested.
Dual channel support Ok Seems to be working.
ECC support N/A
On-board Hardware
On-board IDE 3.5" Untested
On-board IDE 2.5" N/A
On-board SATA OK SATA on MCP55b (IO-55) unknown - needs tested.
On-board SCSI N/A
On-board USB OK
On-board VGA N/A
On-board Ethernet OK
On-board Audio Untested
On-board Modem N/A
On-board FireWire No Firewire is on stuck PCI Bus (00:06.0)
On-board Smartcard reader N/A
On-board CompactFlash N/A
On-board PCMCIA N/A
On-board Wifi N/A
On-board Bluetooth N/A
On-board SD card reader N/A
Add-on slots/cards
ISA add-on cards N/A
Audio/Modem-Riser (AMR/CNR) cards N/A
PCI add-on cards No 00:06.0 stuck PCI Bus. Firewire and PCI slot affected.
Mini-PCI add-on cards N/A
Mini-PCI-Express add-on cards Unknown
PCI-X add-on cards N/A
AGP graphics cards N/A
PCI Express x1 add-on cards N/A
PCI Express x2 add-on cards N/A
PCI Express x4 add-on cards N/A
PCI Express x8 add-on cards N/A
PCI Express x16 add-on cards Ok Slot on board with label "PCIE3" tested with video card - works. Others need tested but probably working.
PCI Express x32 add-on cards N/A
HTX add-on cards N/A
Legacy / Super I/O
Floppy N/A
Serial port 1 (COM1) Ok Using LCP47B397 superio code. superio/smscsuperio possibly broken.
Serial port 2 (COM2) N/A
Parallel port N/A N/A
PS/2 keyboard N/A
PS/2 mouse N/A
Game port N/A
Infrared N/A
PC speaker Unknown
DiskOnChip N/A
Trackpoint N/A
Touchpad N/A
Fn Hotkeys N/A
Fingerprint Reader N/A
Docking VGA N/A
Docking LAN N/A
Docking USB N/A
Docking Audio N/A
Docking Displayport N/A
Thinklight N/A
Webcam N/A
Sensors / fan control WIP jakllsch has figured some of this out and put in place a short term solution for managing fan speed. More work needed.
Hardware watchdog N/A
SMBus Unknown
CAN bus N/A
CPU frequency scaling Untested
Other powersaving features N/A
ACPI No No ACPI implementation yet.
Reboot Untested
Poweroff No
Suspend Unknown
Nonstandard LEDs Untested
High precision event timers (HPET) No Present but not enabled.
Random number generator (RNG) N/A
Wake on modem ring Untested
Wake on LAN Untested
Wake on keyboard Untested
Wake on mouse Untested
TPM Unknown
Flashrom Ok Flashrom works under both vendor bios and Coreboot.

GNU head 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.