On Mon, Apr 02, 2007 at 06:03:07PM +0200, ccases@navista.fr wrote:
I have create a linuxbios file for my embeded mother board call Adavantech PCM-5823, and I have some problem with the fonctionality of the superIO winbond W83977AF/TF, when I put LinuxBIOS in my chip, I have nothing on screen and no information on the COM port.
VGA is initialized a lot later, getting serial output is the first step, usually.
In linuxBIOS I used the superIO winbond W83977TF. According to the documentation of the winbond W83977AF and W83977TF the chip is virtually identical, but the are some difference on the number of I/O programable port.
For now I'm blocked. If somebody has a solution for my problem, I thank it by advance.
Without knowing which code you're using we cannot say very much. Can you post the full patch of the code you're trying to use?
Also, are you sure your null-modem cable is ok? Is it attached to the correct COM port? Can you connect to another machine when Linux runs (using minicom for example)? Are your BAUD rate settings correct?
Uwe.