Difference between revisions of "Board:jetway/j7f2"

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m (Phcoder moved page Jetway J7F2 to Board:jetway/j7f2)
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Revision as of 23:22, 18 January 2014

This page describes how to use coreboot on the Jetway J7F2 series mainboards.

This page is a work in progress.


This board works with target/jetway/j7f24, except that it needs rev 3566 of src/southbridge/via/vt8237r.

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 Untested
On-board Hardware
On-board IDE 3.5" OK hda in Linux is hde in FILO
On-board IDE 2.5" N/A
On-board SATA OK
On-board SCSI Unknown
On-board USB OK
On-board VGA OK Needs factory video bios and bochsbios. Console flickers under I/O load.
On-board Ethernet Partial Loses MAC address when power is disconnected.
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 Untested
Mini-PCI add-on cards Unknown
Mini-PCI-Express 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) N/A
Parallel port
PS/2 keyboard OK
PS/2 mouse OK
Game port N/A
Infrared N/A
PC speaker Fail PCSP: Timer resolution is not sufficient (4000250nS)

PCSP: Make sure you have HPET and ACPI enabled.
PC-Speaker initialization failed.
pcspkr: probe of pcspkr failed with error -5

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 N/A didn't work on factory BIOS either
Hardware watchdog N/A
SMBus Unknown
CAN bus N/A
CPU frequency scaling  ?
Other powersaving features N/A
Reboot Fail system resets, but coreboot doesn't fully boot and VGA graphics are corrupted
Poweroff Fail
Suspend Unknown
Nonstandard LEDs N/A
High precision event timers (HPET) Untested
Random number generator (RNG) OK
Wake on modem ring Untested
Wake on LAN Untested
Wake on keyboard Untested
Wake on mouse Untested
TPM Unknown
Flashrom OK

Known problems

  • hda in Linux is hde in FILO
  • loading kernel/initrd is very slow
  • irq_tables.c from the factory BIOS does not work. The epia-cn table can be substituted.
  • VGA console flickers badly under intense disk activity, such as dd if=/dev/hda of=/dev/hdc
  • Current code is broken (doesn't compile). Pull rev 3566 of src/southbridge/via/vt8237r
  • Network card loses MAC address on power-loss, preventing the Linux via-rhine driver from activating it. Latest code in src/southbridge/via/vt8237r/ may fix this, at least allowing hard-coding the MAC address into the rom. However, it is also stored somewhere else on the system (not in the factory rom) so it should be readable from somewhere.
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