I want to implement a Callback Function (04E08H- System BIOS INT 15H) for the AMD Video vBIOS (ATOM BIOS Extension Functions)
to support LVDS TFT Displays with AMD G-Series processors (Persimmon mainboard).
Is there any freely accessible documentation? Do you know if VBIOS calls this? I tried to investigate if mine video BIOS is doing any calls but if I recall correctly i havent seen that. I have some trouble with flicker during FID/VID changes any clue here?
What is the best way to do this in SeaBIOS?
I guess just implementing that.
I need some parameter like UMA base and size from Coreboot. How can I transfer this information from Coreboot to SeaBIOS?
Read the config out of the hardware if possible. Check gfx.c in coreboot how to do that.
Thanks Rudolf
Thanks,
Wolfgang
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