On Sunday 29 January 2012 19:38:47 Peter Stuge wrote: > Prakash Punnoor wrote: > > >> - seabios payload: no gfx output, but postcode is F8 > > > > > > Focus on this. What is the serial output from coreboot and SeaBIOS? > > > > That's the thing: I don't have a serial port on this mainboard, that's > > why I had to do painful post code debugging... > > Maybe you can use some of the other methods for debug output. USB > Debug device or RTL8029?
Thx for the hints. I knew about the USB debug device, but it seems too costly and also there is no guarantee it will work. But I have an ancient RTL8029AS which I tried. I didn't get any output, though. I configured it properly in menuconfig. (I didn't change the default ioport. Linux chooses 0xbf00, but 0xe00 seems to be free, as well...) Do I have to call some function in the code to enable console output via ethernet? I checked the connection in Linux and it worked. (I use a cross-over cable, btw.) > For serial output from SeaBIOS or later coreboot stages a PCI based > serial port would also work. Ok, this would be my second option if above doesn't work. Thanks, Prakash -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot
