Difference between revisions of "Board:via/epia-cn"

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The earlier versions of the Epia-CN use a Winbond Super I/O vs the VIA in the later versions.
The earlier versions of the Epia-CN use a Winbond Super I/O vs the VIA in the later versions.
Until a few patches get fixed, please use coreboot rev 3556 and FILO rev 52 for good build success on any C7+CN700+vt8237 board.
== Status ==
== Status ==

Revision as of 20:07, 11 February 2010

This page describes how to use coreboot on the VIA EPIA-CN mainboard.

This page is a work in progress.


The earlier versions of the Epia-CN use a Winbond Super I/O vs the VIA in the later versions.


Device/functionality Status Comments
CPU works OK
L1 cache enabled OK Always on
L2 cache enabled OK Always on
L3 cache enabled N/A
Multiple CPU support N/A
Multi-core support N/A
Hardware virtualization N/A
Dual channel support N/A
ECC support N/A
On-board Hardware
On-board IDE 3.5" OK
On-board IDE 2.5" OK
On-board SATA OK
On-board SCSI Unknown
On-board USB OK UHCI and EHCI
On-board VGA OK Openchrome works without vgabios or bochs
On-board Ethernet OK
On-board Audio OK
On-board Modem N/A
On-board FireWire N/A
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 OK
Mini-PCI add-on cards Unknown
PCI-X add-on cards Unknown
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
Serial port 2 (COM2) Not tested
Parallel port Not tested
PS/2 keyboard OK
PS/2 mouse OK
Game port N/A
Infrared Not tested
PC speaker OK
DiskOnChip NA
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 Not tested
Hardware watchdog OK
SMBus Unknown
CAN bus N/A
CPU frequency scaling OK
Other powersaving features N/A
ACPI Not Yet
Reboot OK
Suspend Unknown
Nonstandard LEDs OK
High precision event timers (HPET) Not tested
Random number generator (RNG) N/A
Wake on modem ring N/A
Wake on LAN Untested
Wake on keyboard Untested
Wake on mouse Untested
Flashrom OK SST 512KB, 1MB, 2MB, PMC 512KB

Use this to extract the vgabios from the factory BIOS:

$ dd if=/dev/mem of=video.bios.bin.4 bs=65536 count=1 skip=12

Ubuntu 8.04 openchrome drivers support X without the need for bochs or vgabios. viafb support as a payload is in the works.

See also

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