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Revision as of 19:40, 14 August 2014 by GNUtoo (talk | contribs) (Recovery)
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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!


Device/functionality Status Comments
CPU works OK
L1 cache enabled Unknown How to test ?
L2 cache enabled Unknown How to test ?
L3 cache enabled N/A
Multiple CPU support N/A
Multi-core support N/A
Hardware virtualization N/A
SDRAM OK It appears to work since it boots successfully.
Dual channel support N/A
ECC support N/A
On-board Hardware
On-board IDE 3.5" N/A
On-board IDE 2.5" Untested Testing it requires a 2.5"<->2.5" IDE cable
On-board SATA N/A
On-board SCSI N/A
On-board USB OK Works in GNU/Linux but not in SeaBIOS.
On-board VGA Unknown Has support in the linux kernel(untested) and in SeaBIOS VGA option roms(tested too rapidely, wasn't executed somehow)
On-board Ethernet OK Works in GNU/Linux
On-board Audio OK Tested with MPD under parabola
On-board Modem N/A
On-board FireWire N/A
On-board Smartcard reader N/A
On-board CompactFlash OK can boot from it with SeaBIOS.
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 OK Booted successfully from a 3com PCI card with ipxe, also tested with an ath9k, works fine
Mini-PCI add-on cards OK tested with an ath5k, works fine
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 N/A
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 DE-9
Serial port 2 (COM2) OK 10 pins header
Parallel port Untested
PS/2 keyboard Unknown Not detected in coreboot, may work in GNU/Linux
PS/2 mouse Untested
Game port N/A
Infrared N/A
PC speaker Untested
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 Unknown Are there some sensors?
Hardware watchdog Unknown Is there a watchdog?
SMBus Unknown Is there an i2c bus? i2cdetect should tell. Since there is a VGA connector, there should at least be a bus that goes on the DCC pin.
CAN bus N/A
CPU frequency scaling Unknown Does the geode support cpufreq?
Other powersaving features Unknown What other powersave feature there should be?
ACPI No ACPI tables are not implemented, and not available in make menuconfig
Reboot OK tested with the reboot command under parabola(systemd based)
Poweroff Unknown How to test? Probably by wiring the power button ?
Suspend Untested
Nonstandard LEDs Untested
High precision event timers (HPET) Unknown Does the board have such timer ?
Random number generator (RNG) Unknown Does the geode have a hardware RNG ?
Wake on modem ring Unknown Is there wake on modem on this board ?
Wake on LAN Unknown Is there wake on lan on this board?
Wake on keyboard Unknown Is there wake on keyboard on this board?
Wake on mouse Unknown Is there wake on mouse on this board?
TPM Unknown
Flashrom OK Works in coreboot, be sure to run "modprobe msr" before.

proprietary componemts status

  • VSA: LGPL but require a microsoft compiler. Code need to be converted, openvsa froze the board during boot(but it was tried with my distro's compiler).
  • Has a free video option rom that can be generated by seabios, i didn't succeed at getting it work.


  • Retest the following: Audio, Second serial port, USB under GNU/Linux, they were tested with an old revision, before the board status system.
  • Test untested things in "Status"
  • Make fallback mecanism compile and work.
  • Add ACPI support and make seabios detect the USB hard disks at boot.

Coreboot features

  • Compatible with nvramtool.


  • There is an LPC dongle with a socketed second BIOS chip in it, it can probably be bought, lent or given by the company making the card.

GNU/Linux Installation

USB doesn't work under SeaBIOS with this board, so pressing F12 from an USB keyboard to boot on an USB key won't work for now.

  • If you have no compact flash reader, you add ipxe and sgabios to the coreboot image in order to boot from the network. Sgabios is needed to be able to press F12 in SeaBIOS trough the serial port.
  • SeaBIOS do run external option roms, like the ones on network cards.
  • Removing the compact flash card before SeaBIOS makes SeaBIOS boot on the next available device (like a network card with ipxe), and putting it back before the linux kenrel boot makes it appear under GNU/Linux.
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.